[Botany • 2024] Impatiens bungeusing (Balsaminaceae) • A New species from the Northern Gayo Plateau, Sumatra, Indonesia

 

Impatiens bungeusing Mustaqim & Ruchis.,  

in Mustaqim, Arico, Jayanthi, Andini, Pratiwi et Ruchisansakun, 2024.   

 taiwania.ntu.edu.tw/abstract/2035 

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Abstract

Impatiens is a diverse genus within the Balsaminaceae family, comprising over 1,120 species. The northern Gayo Plateau of Sumatra, an island in Southeast Asia, is renowned for its rich Impatiens diversity. In this paper, we described and illustrated a new species named Impatiens bungeusing from this area. This species is most similar to Impatiens vitellina Grey-Wilson but differs in having the distinct abaxial leaf venation in a dry state (vs obscure), lateral sepals falcate-oblong (vs narrowly lanceolate), lower sepals with U-shaped spur (vs straight), broadly ovate dorsal petal (vs ovate), and ovate sub-rhomboidal upper lateral united petals (vs oblong). This discovery brings the total number of known Impatiens species in Sumatra to forty-eight.

Keyword: Ericales, herbs, Impatiens tapanuliensis, Impatiens vitellina, Malesia, limestone plant, taxonomy, Uniflorae

Morphology of Impatiens bungeusing Mustaqim & Ruchis., sp. nov.
 A. Plants in habitat. B. Living plant. C. Inflorescence. D. Flower. E. Lateral sepals. F. Dorsal petals. G. Lateral united petals. H. Lower sepal. I. Pedicel and ovary. J. Fruit.

Scale: A = 4 cm, B = 3 cm, C–D = 1 cm, E = 2 mm, F = 3 mm, G–J = 5 mm. Photographs by Wendy A. Mustaqim.

Morphology of Impatiens bungeusing Mustaqim & Ruchis., sp. nov.
  A. Plant. B. Leaves showing petiole. C. Leaves showing apex and margin. D. Inflorescence. E. Flower, frontal view. F. Flower, lateral view. G. Pedicel, lower sepal, stamens, and ovary. H. Lateral sepal. I. Dorsal petal. J. Lateral united petals.

Scale: A = 3 cm, B–D = 5 mm, E–G = 1 cm, H = 3 mm, I–J = 5 mm. 

Illustrated by Yuanito Eliazar.

Impatiens bungeusing Mustaqim & Ruchis., sp. nov. 

Type: Indonesia. Aceh Province: Aceh Tengah Regency, Jagong Jeget, ..., 2100 m asl, 11 January 2023, Mustaqim 2577 (holotype: LGS; isotype: MEDA). 

Diagnosis: Impatiens bungeusing is similar to Impatiens vitellina Grey-Wilson. However, it differs in having the distinct abaxial leaf venation in a dry state (vs obscure), flowers with lower sepal having U-shaped spur (vs straight), broadly ovate dorsal petal (vs ovate), and ovate sub-rhomboidal upper lateral united petals (vs oblong) (Table 1).

Etymology: The specific epithet "bungeusing" is derived from the Gayo language. "Bunge" means flower, and "using" means yellow, reflecting the plant's bright yellow flowers.

Wendy A. Mustaqim, Zulfan Arico, Sri Jayanthi, Wanda R. Andini, Devi Pratiwi and Saroj Ruchisansakun. 2024. Impatiens bungeusing (Balsaminaceae), A New species from the Northern Gayo Plateau, Sumatra, Indonesia. Taiwania. 69(4); 554-559. DOI: 10.6165/tai.2024.69.554  taiwania.ntu.edu.tw/abstract/2035

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[Botany • 2024] Impatiens karenensis (Balsaminaceae) • A New tiny flowered Species from Myanmar

 Impatiens karenensis Chit Soe Paing & Ruchis., 

in Paing, Suksathan et Ruchisansakun, 2024.  

DOI: 10.3897/phytokeys.243.123303 

Abstract

Impatiens karenensis (I. sect. Semeiocardium) from Kayin State, Myanmar is described and illustrated here. It is most similar to I. micromeris, but differs in having lower petals with outer margins strongly undulate in the lower half (vs. lower petals entire), apex of upper petals acute to obtuse (vs. apex rounded), short stout spur, ± as long as the depth of lower sepal, ca. 2.5 mm long (vs. long attenuate spur, twice as long as the depth of lower sepal, ca. 5 mm long). Its conservation status is also assessed as Critically Endangered.

Key words: Critically endangered, endemic, Kayin State, limestone species, Southeast Asia

 Impatiens karenensis Chit Soe Paing & Ruchis.
A habit B flower, front view C flower, side view D inner lateral sepals E outer lateral sepals F–H lower sepal I–J dorsal petal K lateral united petals L ovary, pedicel and bract M fruit (from Chit Soe Paing 002).

Drawn by S. Ruchisansakun.

 Impatiens karenensis Chit Soe Paing & Ruchis. in vivo
A flower, front view B flowers, side view C habit.

Photographed by Chit Soe Paing.

 Impatiens karenensis Chit Soe Paing & Ruchis., sp. nov. 

 

Diagnosis: Impatiens karenensis resembles I. micromeris, but differs in having lower petals with outer margins strongly undulate in the lower-half (vs. lower petals entire), apex of upper petals acute to obtuse (vs. rounded), short stout spur, ± as long as the depth of lower sepal, ca. 2.5 mm long (vs. long attenuate spur, twice as long as the depth of lower sepal, ca. 5 mm long).

Etymology: The specific epithet is derived from the former name of the state of its type locality “Karen”.

 

 Chit Soe Paing, Piyakaset Suksathan and Saroj Ruchisansakun. 2024.  Impatiens karenensis (Balsaminaceae), A New tiny flowered Species from Myanmar. PhytoKeys. 243: 113-119. DOI: 10.3897/phytokeys.243.123303

 

[Botany • 2022] Impatiens albocolumba, I. aureiflora, I. phasiana, I. psittacula, I. thunbergioides, etc. (Balsaminaceae) • Impatiens of Thailand

Impatiens centralis Suksathan & Triboun,

I. phonsenae Ruchis. & Suksathan, 

I. micropsitta Suksathan & Ruchis.

 I. doiwaoensis Suksathan & Wongnak,

  I. kaweesakii Suksathan 

 I. chamchumroonii Suksathan & Ruchis., 

 I. aureiflora Suksathan & La-ongsri

in Suksathan et Ruchisansakun, 2020. 

 Researchgate.net/publication/366093433

Dr Piyakaset Suksathan and Dr Saroj Ruchisansakun present, in this book on the balsams of Thailand, their revision of the genus Impatiens (Balsaminaceae), a technically competent yet well-illustrated and engaging account of a plant group with very many elegant and exquisite species. For plant-lovers, especially, this comes some 130 years following the description of the first Thai species, Impatiens mirabilis Hook.f., in 1891. Since then, there have been many discoveries, including new records and new species, detailed in this book. The research has spanned over a decade, covering an incredibly attractive and interesting array of species spanning the longitudinally and latitudinally diverse inclusion of Thailand, ranging from subtropical mountains to the wet tropical lowland rainforest regions. Balsams have an impressive taxonomic diversity, their basic floral structure already elaborate, represented by an incredibly large variation in form and structure, amply displayed in this iconic taxonomic account. This beautiful book details 91 taxa including 20 new species and a new variety, with 43 species only known from Thailand. It is a gem not only for botanists and specialists, but also amateurs and plant lovers everywhere.

20 new species and a new variety from Thailand:  

• Calcicola group

• Impatiens centralis Suksathan & Triboun endemic to Central Thailand 

• Impatiens chamchumroonii Suksathan & Ruchis. endemic to NE Thailand 

• Impatiens chunkaoi Suksathan & Panitvong endemic to Central Thailand 

• Impatiens nakhonsriensis Suksathan & Triboun endemic to southern Thailand 

• Impatiens phonsenae Ruchis. & Suksathan endemic to eastern Thailand 

• Impatiens wongnakii Suksathan & La-ongsri endemic to northern Thailand 

* Impatiens kanburiensis T.Shimizu var. phuphanensis Suksathan & Ruchis.) endemic to NE Thailand 

• Damrongii group

• Impatiens doiwaoensis Suksathan & Wongnak endemic to northern Thailand 

• Impatiens phasiana Suksathan & Triboun endemic to northern Thailand 

• Impatiens shimizuana Suksathan & Ruchis.) endemic to northern Thailand 

• Kerriae group

• Impatiens kaweesakii Suksathan endemic to NE Thailand 

• Mirabilis group

• Impatiens poomae Suksathan & Ruchis. endemic to southern Thailand 

• Psittacina group

• Impatiens albocolumba Suksathan & Ruchis. endemic to NE Thailand 

• Impatiens aureiflora Suksathan & La-ongsri endemic to northern Thailand 

• Impatiens chanburiensis Suksathan & Wongnak endemic to eastern Thailand 

• Impatiens micropsitta Suksathan & Ruchis. endemic to northern Thailand 

• Impatiens phayaoensis Suksathan & La-ongsri endemic to northern Thailand 

• Impatiens psittacula Suksathan & Ruchis. endemic to northern Thailand 

• Impatiens purpureoscopioides Triboun, Tanutong & Ruchis. endemic to western Thailand 

• Impatiens thunbergioides Suksathan & Triboun endemic to northern Thailand 

• Violiflora group

• Impatiens nanensis Suksathan & Srisanga endemic to northern Thailand 

Impatiens poomae Suksathan & Ruchis.,

Impatiens thunbergioides Suksathan & Triboun

Impatiens wongnakii Suksathan & La-ongsri, 

Impatiens albocolumba Suksathan & Ruchis. 

 ไทยค้นพบ “พืชสกุล เทียน” ชนิดใหม่ของโลกมากถึง 20 ชนิด

องค์การสวนพฤกษศาสตร์ ค้นพบพืชสกุลเทียนชนิดใหม่ของโลกมากถึง 20 ชนิด และอีก 1 สายพันธุ์ พร้อมเปิดตัวหนังสือ Impatiens of Thailand (พืชสกุลเทียนในประเทศไทย)

(25 พ.ย.2565) องค์การสวนพฤกษศาสตร์ กระทรวงทรัพยากรธรรมชาติและสิ่งแวดล้อม ร่วมกับ Mr. John Tan Jiew Hoe กรรมการบริหาร Gardens by the Bay ประเทศสิงคโปร์ และ Datuk Chan Chew Lum เจ้าของสำนักพิมพ์ Natural History Publications (Borneo) ประเทศมาเลเซีย จัดงานเปิดตัวหนังสือ Impatiens of Thailand (พืชสกุลเทียนในประเทศไทย)

เทียนชนิดใหม่ของโลก 20 ชนิด ที่ค้นพบในประเทศไทย ได้แก่ 

• Calcicola group

• เทียนภาคกลาง (Impatiens centralis Suksathan & Triboun) พบใน จ.สระบุรี ลพบุรี และนครสวรรค์

• เทียนแจ่มจำรูญ (Impatiens chamchumroonii Suksathan & Ruchis.) พบใน จ.สกลนคร มุกดาหาร และอุบลราชธานี

• เทียนจันทร์แก้ว (Impatiens chunkaoi Suksathan & Panitvong) พบใน จ.นครสวรรค์ 

• เทียนนครศรี (Impatiens nakhonsriensis Suksathan & Triboun) พบใน จ.นครศรีธรรมราช

• เทียนพลเสนา (Impatiens phonsenae Ruchis. & Suksathan) พบใน จ.สระแก้ว

• เทียนวงศ์หนัก (Impatiens wongnakii Suksathan & La-ongsri) พบใน จ.น่าน

*1 สายพันธุ์ใหม่ คือ เทียนภูพาน (Impatiens kanburiensis T.Shimizu var. phuphanensis Suksathan & Ruchis.)  พบใน จ.สกลนคร

• Damrongii group

• เทียนดอยวาว (Impatiens doiwaoensis Suksathan & Wongnak) พบใน จ.น่าน

• เทียนนกอัคคี หรือ เทียนไก่ฟ้า (Impatiens phasiana Suksathan & Triboun) พบใน จ.เชียงใหม่ และน่าน

• เทียนดอกลาย (Impatiens shimizuana Suksathan & Ruchis.) พบใน จ.เชียงใหม่ เชียงราย และลำปาง

• Kerriae group

• เทียนกวีศักดิ์ (Impatiens kaweesakii Suksathan) พบใน จ.เลย และ ชัยภูมิ 

• Mirabilis group

• เทียนภู่มา (Impatiens poomae Suksathan & Ruchis.) พบใน จ.ชุมพร

• Psittacina group

• เทียนพิราบขาว (Impatiens albocolumba Suksathan & Ruchis.) พบใน จ.เลย ชัยภูมิ และ อุดรธานี

• เทียนกิ่วลม (Impatiens aureiflora Suksathan & La-ongsri) พบใน จ.ลำปาง

• เทียนจันทบูร (Impatiens chanburiensis Suksathan & Wongnak) พบใน จ.จันทบุรี 

• เทียนนกแก้วน้อย (Impatiens micropsitta Suksathan & Ruchis.) พบใน จ.แม่ฮ่องสอน และ พะเยา

• เทียนพะเยา (Impatiens phayaoensis Suksathan & La-ongsri) พบใน จ.พะเยา

• เทียนนกแขกเต้า (Impatiens psittacula Suksathan & Ruchis.) พบในจ.เชียงใหม่

• เทียนแมงป่องม่วง (Impatiens purpureoscopioides Triboun, Tanutong & Ruchis.) พบใน จ.กาญจนบุรี

• เทียนช้องนาง (Impatiens thunbergioides Suksathan & Triboun) พบใน จ.แพร่ และ สุโขทัย

• Violiflora group

• เทียนเมืองน่าน (Impatiens nanensis Suksathan & Srisanga) พบใน จ.น่าน

  

Piyakaset Suksathan and Saroj Ruchisansakun. 2022. Impatiens of Thailand (พืชสกุลเทียนในประเทศไทย).  Natural History Publications (Borneo). ISBN: 9789838122030. 

 Researchgate.net/publication/366093433_Impatiens_of_Thailand

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www.tnnthailand.com/news/local/131624

4occ.isoc.go.th/04news/?p=11234

  

[Botany • 2023] Curcuma ignea (Curcuma subg. Ecomatae, Zingiberaceae) • A spectacular New Species from Thailand

Curcuma ignea Ruchis. & Jenjitt., 

in Ruchisansakun et Jenjittikul, 2023.

 กระเจียวไฟ  ||  DOI: 10.24823/ejb.2023.1959

Abstract

Curcuma ignea Ruchis. & Jenjitt., a new species in Curcuma subg. Ecomatae from Thailand, is described here. This species is distinct from others by the combination of open flowers and L-shaped anthers. It is most similar to Curcuma glans but differs by having anther spurs pointing outwards (vs divergent), remotely pilose corolla lobes (vs glabrous), and vivid red, green, to white bracts (vs pale green to  green, with red veins). It is assessed as Endangered using IUCN categories and criteria.

Keywords: Curcuma glans, L-shaped anther, Southeast Asia, subgenus Ecomatae

Curcuma ignea Ruchis. & Jenjitt., sp. nov.
A, Inflorescence; B, habit in habitat; C, rhizome and tuberous roots.

All photographs of Ruchisansakun & Thawara 1359 (SLR), taken by Saroj Ruchisansakun.

Curcuma ignea Ruchis. & Jenjitt., sp. nov.

Similar to Curcuma glans K.Larsen & Mood but differs by having anther spurs pointing outwards (vs anther spurs divergent), remotely pilose corolla lobes (vs glabrous corolla lobes), and vivid red, green to white bracts (vs pale green to green, with red-veined bracts).

Etymology. The specific epithet, ignea, means ‘fiery’, referring to the vivid red-bracted inflorescence in the most common form of this species.

Vernacular name. Krachiao fai (กระเจียวไฟ) means ‘fire siam tulip’ and is proposed by the authors.

S. Ruchisansakun and T. Jenjittikul. 2023. Curcuma ignea (Zingiberaceae), A spectacular New Species from Thailand.  Edinburgh Journal of Botany. 80  DOI: 10.24823/ejb.2023.1959

[Botany • 2023] Paris siamensis (Melanthiaceae) • Revision on the Genus Paris in Thailand, with A New Species from Luang Prabang Range

  Paris siamensis Ruchis., 

in Ruchisansakun, Sraphet, Yothawut, Thamanukornsri, Suksee, ... et Triwitayakorn, 2023.

ตีนฮุ้งดอยสยาม  ||  DOI: 10.3390/plants12030430 

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 Abstract

The genus Paris is an important and confusing taxon due to high variation within species, and differences between species are sometimes difficult to delimit. Thus, the status of some taxa has changed over time. To clarify the status of Paris species for plant conservation and effective management of this genus in Thailand, we performed an intensive survey in northern Thailand, studied morphological characteristics, and constructed a molecular phylogenic tree, which we compared to recently published results of this genus. Our results indicate that there are two species in Thailand: P. yunnanensis and a new species, P. siamensis. Detailed descriptions, illustrations, and the phylogenetic position of these two species are provided here.

Keywords: Paris chinensis; Melanthiaceae; threatened species; cryptic taxa; Paris polyphylla

  Paris siamensis Ruchis.
(A) Plant, (B) Leaf, (C) Flower (front view), (D) Flower (lateral view), (E) Sepal, (F) Petal, (G) Stamen, (H) Pistil (front view), (I) Pistil (lateral view).

Drawn by Jeerapach Monthanom

  Paris siamensis Ruchis.
 (A) Habit, (B) Leaf, (C) Flower (front view), (D) Flower (lateral view), (E) Sepal, (F) Petal, (G) Stamen, (H) Pistil (front view), (I) Pistil (lateral view).

 Paris siamensis Ruchis. 

Paris siamensis is similar to P. liiana but differs in having petals below sepals (versus petals above sepals), stamen number (2.2–)2.8–3 times petal number (versus stamen number 2 times petal number), and anther length 8–10 mm long (versus anther 15–40 mm long). 

Distribution. To date, endemic to Nan province, Thailand (may be found in Laos), 1050–1216 m alt.

Vernacular name. Tin Hung Doi Siam (ตีนฮุ้งดอยสยาม), 

Tin Hung Doi (ตีนฮุ้งดอย).

Distributions of the Two Paris Species in Thailand

The distributions of the plants showed that this genus is specific to high-altitude habitats. The two species in Thailand were separated by lowland areas along the Nan river. Paris siamensis was found only in Luang Prabang Range, while P. yunnanensis was more widespread and found in the Phi Pan Nam Range, the Thong Chai Range, and the Daen Lao Range, which connects to the Shan plateau where the same species is found and is connected to the populations in China.

 

 

Saroj Ruchisansakun, Supajit Sraphet, Chatchai Yothawut, Chompunooch Thamanukornsri, Nawarat Suksee, Panida Kongsawadworakul, Nattaya Srisawad, Nicha Thawara, Puangpaka Umpunjun, Supaporn Rodpradit, Winai Sangkaew and Kanokporn Triwitayakorn. 2023. Revision on the Genus Paris in Thailand, with a New Species Paris siamensis. Plants. 12(3), 430. DOI: 10.3390/plants12030430  

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[Botany • 2020] Evolution of Pollination Syndromes and Corolla Symmetry in Balsaminaceae Reconstructed Using Phylogenetic Comparative Analyses

in Ruchisansakun, Mertens, Janssens, et al., 2021. 

 DOI: 10.1093/aob/mcaa184 

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Abstract

Background and Aims: 

Floral diversity as a result of plant–pollinator interactions can evolve by two distinct processes: shifts between pollination systems or divergent use of the same pollinator. Although both are pollinator driven, the mode, relative importance and interdependence of these different processes are rarely studied simultaneously. Here we apply a phylogenetic approach using the Balsaminaceae (including the species-rich genus Impatiens) to simultaneously quantify shifts in pollination syndromes (as inferred from the shape and colour of the perianth), as well as divergent use of the same pollinator (inferred from corolla symmetry).

Methods: 

For 282 species we coded pollination syndromes based on associations between floral traits and known pollination systems, and assessed corolla symmetry. The evolution of these traits was reconstructed using parsimony- and model-based approaches, using phylogenetic trees derived from phylogenetic analyses of nuclear ribosomal and plastid DNA sequence data.

Key Results: 

A total of 71 % of studied species have a bee pollination syndrome, 22 % a bimodal syndrome (Lepidoptera and bees), 3 % a bird pollination syndrome and 5 % a syndrome of autogamy, while 19 % of species have an asymmetrical corolla. Although floral symmetry and pollination syndromes are both evolutionarily labile, the latter shifts more frequently. Shifts in floral symmetry occurred mainly in the direction towards asymmetry, but there was considerable uncertainty in the pattern of shift direction for pollination syndrome. Shifts towards asymmetrical flowers were associated with a bee pollination syndrome.

Conclusion: 

Floral evolution in Impatiens has occurred through both pollination syndrome shifts and divergent use of the same pollinator. Although the former appears more frequent, the latter is likely to be underestimated. Shifts in floral symmetry and pollination syndromes depend on each other but also partly on the region in which these shifts take place, suggesting that the occurrence of pollinator-driven evolution may be determined by the availability of pollinator species at large geographical scales.

Keywords: Asymmetry, floral morphology, floral symmetry, Impatiens, Hydrocera, molecular phylogenetics, pollinator

 

Saroj Ruchisansakun, Arne Mertens, Steven B Janssens, Erik F Smets and Timotheüs van der Niet. 2021. Evolution of Pollination Syndromes and Corolla Symmetry in Balsaminaceae Reconstructed Using Phylogenetic Comparative Analyses. Annals of Botany. 127(1); 267–280. DOI: 10.1093/aob/mcaa184

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[Botany • 2020] Stephania kaweesakii (Menispermaceae) บัวหิน • A New Tuberous Species from Thailand

  

  Stephania kaweesakii Jenjitt. & Ruchis.Add c

in Jenjittikul & Ruchisansakun, 2020.

“บัวหิน” DOI: 10.11646/phytotaxa.464.3.9

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 plantscience.sc.mahidol.ac.th

Abstract

Stephania kaweesakii (Menispermaceae), a new tuberous species from Thailand, is described and illustrated. It is morphologically similar to S. pierrei but can be distinguished by having thick-scaled (vs. smooth and papery) tuber bark, male flowers with 3 or 4 petals (vs. absence of petals).

Keywords: limestone, morphology, SE Asia, taxonomy

Thaya Jenjittikul and Saroj Ruchisansakun. 2020. Stephania kaweesakii (Menispermaceae), A New Tuberous Species from Thailand. Phytotaxa. 464(3); 257–260. DOI: 10.11646/phytotaxa.464.3.9

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“บัวหิน”  STEPHANIA KAWEESAKII Jenjitt. & Ruchis.

ผศ.ดร. ทยา เจนจิตติกุล และ ดร. สาโรจน์ รุจิสรรค์สกุล ตีพิมพ์พืชชนิดใหม่ของโลก

ซึ่งพืชชนิดนี้เป็นที่รู้จักกันในตลาดมาระยะใหญ่ๆแล้ว ในชื่อ บัวหิน บัวผา หรือ Stephania sp. nova และจากการเปรียบเทียบลักษณะกับชนิดใกล้เคียงทั้งของไทยและประเทศข้างเคียงสามารถยืนยันได้ว่า Stephania ชนิดนี้เป็นชนิดใหม่ของโลก

การค้นพบครั้งนี้แสดงให้เห็นถึงความอุดมสมบูรณ์ของป่าภาคตะวันตกของไทยและพื้นที่เขาหินปูนทั่วประเทศที่มีความสำคัญต่อความหลากหลายทางชีวภาพ​ การอนุรักษ์พื้นป่าโดยเฉพาะพื้นที่เขาหินปูนจึงมีความสำคัญต่อความหลากหลายทางชีวภาพของไทยและของโลก

สำหรับชื่อ “kaweesakii” นั้นตั้งให้เป็นเกียรติแก่ คุณกวีศักดิ์ กีรติเกียรติ ผู้เก็บพรรณไม้ต้นแบบ

[Botany • 2020] Scaphochlamys longipedunculata (Zingiberaceae) บุปผานรา • A New Species from southern Thailand

 Scaphochlamys longipedunculata Maknoi, Ruchis. & Jenjitt. 

in Ruchisansakun, Jenjittikul & Maknoi, 2020. 

บุปผานรา  || DOI: 10.1017/S0960428620000177  

Photo: Saroj Ruchisansakun. 

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Abstract

A new species, Scaphochlamys longipedunculata (Zingiberaceae), is described and illustrated here. It is similar to Scaphochlamys grandis but differs in having 1- or 2-leaved shoots (versus shoots with 5 or more leaves) and peduncle length c.17 cm (versus peduncle length c.7 cm).

Keywords: Scaphochlamys perakensis, Southeast Asia, Zingiberaceae

Holotype of Scaphochlamys longipedunculata Maknoi, Ruchis. & Jenjitt.

Photograph taken by Saroj Ruchisansakun. 

Scaphochlamys longipedunculata Maknoi, Ruchis. & Jenjitt., sp. nov.

Etymology. The specific epithet, longipedunculata, refers to the peduncle, which is long in comparison with that of other Thai species. A long peduncle can also be observed in Scaphochlamys minutiflora, but that species is distinctly different from others in its crisped bracts. 

Saroj Ruchisansakun, Thaya Jenjittikul and Charun Maknoi. 2020. Scaphochlamys longipedunculata, A New Species from southern Thailand. Edinburgh Journal of Botany. First View. DOI: 10.1017/S0960428620000177

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ดร. สาโรจน์ รุจิสรรค์สกุล ร่วมกับ ผศ.ดร. ทยา เจนจิตติกุล ภาควิชาพฤกษศาสตร์ คณะวิทยาศาสตร์ มหาวิทยาลัยมหิดล และ ดร. จรัญ มากน้อย นักพฤกษศาสตร์ประจำสวนพฤกษศาสตร์บ้านร่มเกล้า ตีพิมพ์พืชชนิดใหม่ของโลก 

    "บุปผานรา" Scaphochlamys longipedunculata Maknoi, Ruchis. & Jenjitt. 

    โดยชื่อ บุปผานรา ตั้งตามสถานที่ค้นพบคือจังหวัด นราธิวาส เพื่อสร้างความตระหนักแก่ความสำคัญของผืนป่าในจังหวัดนราธิวาส

    การค้นพบครั้งนี้แสดงให้เห็นถึงความอุดมสมบูรณ์ของป่าภาคใต้ของไทย ที่ยังมีความอุดมสมบูรณ์และมีพื้นที่ที่ยังขาดการสำรวจอีกมาก การอนุรักษ์พื้นป่าบริเวณนี้จึงมีความสำคัญต่อความหลากหลายทางชีวภาพของไทยและของโลก

พืชชนิดนี้พบว่าเป็นพืชชนิดใหม่จากการศึกษาพรรณไม้ที่เก็บรักษาอยู่ในหอพรรณไม้สวนสมเด็จพระนางเจ้าสิริกิติ์ QBG โดยไม่พบต้นสดเนื่องจากเป็นพืชหายากและออกดอกยากมาก ซึ่งทำให้เห็นว่า หอพรรณไม้เป็นแหล่งข้อมูลที่สำคัญมากต่อการศึกษาความหลากหลายทางชีวภาพ

[Botany • 2020] Kaempferia albiflora (Zingiberaceae) เปราะแมงมุม • A New Species from Northern Thailand

Kaempferia albiflora Jenjitt. & Ruchis.

in Jenjittikul & Ruchisansakun, 2020. 

เปราะแมงมุม ||  DOI: 10.1007/s12225-020-9868-4 

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photos: N. Nopporncharoenkul

Summary

Kaempferia albiflora Jenjitt. & Ruchis., a new species from Northern Thailand, is described. It is similar to K. grandifolia Saensouk & Jenjitt. but differs in having erect, lanceolate to elliptic leaves, lobes of the labellum with a rounded apex, and a trilobed anther crest, whereas K. grandifolia has broadly ovate leaves appressed to the ground, lobes of the labellum with an acuminate apex, and a trilobed anther crest.

Key Words: Endangered species, Northern Thailand, precocious flowering, Protanthium, Tak Province

photo: Nattapon Nopporncharoenkul 

Kaempferia albiflora Jenjitt. & Ruchis. sp. nov.

 

RECOGNITION. This species is most similar to Kaempferia grandifolia Saensouk & Jenjitt. in its inflorescence appearing before the vegetative parts and its white flower with a yellowish patch at the base, but differs in having erect, lanceolate to elliptic leaves, lobes of the labellum with a rounded apex, and a trilobed anther crest, whereas K. grandifolia has broadly ovate leaves appressed to the ground, lobes of the labellum with an acuminate apex, and a bilobed anther crest (Table 1).

Thaya Jenjittikul and Saroj Ruchisansakun. 2020. Kaempferia albiflora (Zingiberaceae), A New Species from Thailand. Kew Bulletin. 75; 13. DOI: 10.1007/s12225-020-9868-4

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Nattapon Nopporncharoenkul, Woranuch Laongsri and Thaya Jenjittikul. 2020. Two New Species of Kaempferia subgenus Protanthium (Zingiberaceae) from northern Thailand. Nordic Journal of Botany. 38(2): e02633. DOI: 10.1111/njb.02633 

[Botany • 2020] Impatiens capillipes (Balsaminaceae), A New Record for Thailand

Impatiens capillipes  Hook.f. & Thomson

in Ruchisansakun, Triboun & Suksathan, 2020

เทียนปีศาจน้อย || DOI: 10.20531/tfb.2020.48.1.08

ABSTRACT

Impatiens capillipes was found for the first time in Thailand. The population in Thailand has slightly larger leaves and flowers than the population in Myanmar. An expanded description of this species and colour photographs are provided.

Keywords: Balsam, Impatiens, Lithophytic, Myanmar, Thailand

Figure 2. Impatiens capillipes Hook.f. & Thomson:
A & B. young flowers; C–F. lateral united petals and lower sepals; G & H. lateral sepals; I–L. lower sepals; M–O. dorsal petals; P & Q. lateral united petals; R. pedicel and stamens; S. fruit.

Figure 1. Impatiens capillipes Hook.f. & Thomson:
A. front view of flowers and leaves; B. lateral view of flower; C. natural habitat; D. pollinator.

Impatiens capillipes Hook.f. & Thomson, 

J. Proc. Linn. Soc., Bot. 4: 135. 1860

Habitat and ecology.— Growing on limestone in mixed deciduous forest, alt. 10–100 m (Fig. 1C). The population in Thailand co-occurs with Impatiens patula Craib and Curcuma roscoeana Wall. and flowers during the same period. 

Common name.— Thian Pisat Noi - เทียนปีศาจน้อย (Little monster balsam).

Note.— The population of Impatiens capillipes in Thailand has slightly larger leaves and flowers than the population in Myanmar. In addition, the stem and petiole is green, not purple as in the Myanmar populations, and the colour of the flowers is slightly paler than those in the Myanmar populations.

Saroj Ruchisansakun, Pramote Triboun and Piyakaset Suksathan. 2020. Impatiens capillipes (Balsaminaceae), A New Record for Thailand.  Thai Forest Bulletin (Botany). 48(1); 48–51. DOI: 10.20531/tfb.2020.48.1.08

[Botany • 2019] Curcuma putii (Zingiberaceae) ช่อหยก • A New Species from central Thailand

Curcuma putii Maknoi & Jenjitt.

in Maknoi, Ruchisansakun & Jenjittikul, 2019.

Curcuma putii Maknoi & Jenjitt., a new species from central Thailand, is described here. This species is similar to C. ecomata, a species in Curcuma subg. Ecomatae, but differs from it by having yellow staminodes, whitish-green or pale-green bract, and 15–40 cm long peduncle.

Charun Maknoi, Saroj Ruchisansakun and Thaya Jenjittikul. 2019. Curcuma putii (Zingiberaceae), A New Species from Thailand. Annales Botanici Fennici. 56; 351-353. 

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