[Botany • 2021] Dendrophthoe laljii (Loranthaceae) • A New Species infesting Artocarpus heterophyllus Lam. (Moraceae) in Andaman and Nicobar Islands, India

 

  Dendrophthoe laljii P. Sivaramakrishna, P. Yugandhar and G.A. Ekka,  

in Sivaramakrishna, Yugandhar et Ekka, 2021.

DOI: 10.1016/j.japb.2021.03.010 

 Researchgate.net/publication/350857937

Highlights: 

• Dendrophthoe laljii P. Sivaramakrishna, P. Yugandhar and G.A. Ekka from Andaman and Nicobar Islands is described and illustrated as new to science first time.

• This species is described as an aerial branch hemiparasitic showy mistletoe on a specific host Artocarpus heterophyllus Lam. (Moraceae).

• This new species differs from previously known species in respect to its morphology of vegetative and floral characteristics.

Abstract

Dendrophthoe laljii sp. nov. (Loranthaceae) from Andaman and Nicobar Islands, India, is described as an aerial branch hemiparasite on Artocarpus heterophyllus Lam. (Moraceae). The notes on conservation status and germination ecology were also depicted in this study. Apparently, this species resembles D. curvata (Blume) Miq, but strictly differs in vegetative morphology and floral characteristics. A taxonomic key to the species of Dendrophthoe Mart. in India is also provided.

 Keywords: Gondwana stock, Hemiparasite, Loranthaceae, Showy mistletoe, Taxonomy

  Dendrophthoe laljii P. Sivaramakrishna, P. Yugandhar and G.A. Ekka sp. nov.:
A, twig with leaves, inflorescence, and fruits; B–C, inflorescence; D, flower bud; E–F, flower; G, perianth split open; H, stamen with the perianth tube; I, pistil; J, ovary; K–L, fruits; M, seeds.

scale bar: 4 cm (A); 1 cm (B); 1.5 cm (C); 1 cm (D); 0.5 cm (E); 1 cm (F); 0.7 cm (G); 0.4 cm (H); 1 cm (I–K); 0.5 cm (L); 1 cm (M)

  Dendrophthoe laljii P. Sivaramakrishna, P. Yugandhar and G.A. Ekka sp. nov.:
 A, inflorescence; B, flower bud; C flower; D, perianth split open; E, stamen with perianth tube; F, pistil; G, ovary; H–J, fruits; K, seeds; L–M, seedlings.

scale bar: 1 cm (A); 1.2 cm (B); 1 cm (C–I); 2 cm (J); 0.5 cm (K); 1 cm (L–M)

  Dendrophthoe laljii P. Sivaramakrishna, P. Yugandhar and G.A. Ekka sp. nov.:
 A, inflorescence; B, flower bud; C flower; D, perianth split open; E, stamen with perianth tube; F, pistil; G, ovary; H–J, fruits; K, seeds; L–M, seedlings.

scale bar: 1 cm (A); 1.2 cm (B); 1 cm (C–I); 2 cm (J); 0.5 cm (K); 1 cm (L–M)

Dendrophthoe laljii P. Sivaramakrishna, P. Yugandhar and G.A. Ekka, sp. nov.

Diagnosis. This species is superficially similar to D. curvata (Blume) Miq. in growth and habit, but differs in having lamina oblong to broad ovate with repand margin, asymmetrical or rounded base, emarginate sometimes rounded apex, axillary racemes inflorescence with 4 to 7 alternate flowers, sometimes solitary, elliptic ovate to rounded bracts, 6-merous corolla with straight sometimes slightly curved, bright red corolla tube, ovate to ovate-oblong fruit with cylindrical to frustum of cone shape with dark banded neck or cork lid shape seeds. The new species easily distinguished in having leaves with emarginated apex (as against leaves with obtuse or rounded) and uniformly bright red, 6-merous flowers (as against red with bright yellow or various shades of yellow to red apex, 5-merous flowers) (Table 1).

Etymology. D. laljii P. Sivaramakrishna, P. Yugandhar and G.A. Ekka is named in honor of an eminent botanist, Dr. Lal Ji Singh, Joint Director and Head of Office, Andaman and Nicobar Regional Centre, Botanical Survey of India, for his significant contributions to Indian Flora.

Pasupuleti Sivaramakrishna, Pulicherla Yugandhar  and Gautam Anuj Ekka. 2021. A New Species Dendrophthoe laljii (Loranthaceae) infesting Artocarpus heterophyllus Lam. (Moraceae) in Andaman and Nicobar Islands, India. Journal of Asia-Pacific Biodiversity. 14(3); 452-459. DOI: 10.1016/j.japb.2021.03.010

  Researchgate.net/publication/350857937_A_new_species_of_Dendrophthoe_from_the_Andaman_and_Nicobar_Islands_India

[Botany • 2022] Cyne barcelonae (Loranthaceae) • An Evaluation of the Genus Cyne including A New Species and Rediscovery and Neotypification of the Rare C. quadriangula

Cyne barcelonae Nickrent & Rule,

in Nickrent & Rule, 2022. 

DOI: 10.11646/phytotaxa.558.1.4 

 facebook.com/MGQRule 

Abstract

A new species of Cyne (Loranthaceae) from Bucas Grande and Dinagat Islands, Philippines is described and named C. barcelonae in honor of the Filipina botanist Julie F. Barcelona. Phylogenetic analysis using the complete nuclear ribosomal DNA cistron confirms it is sister to C. banahaensis, the only species among the six in the genus with complete descriptions of floral morphology. The species is similar to the rare C. perfoliata of Papua New Guinea by having connate-perfoliate upper leaves but differs from others in the genus by possessing palmate leaf venation, inflorescences lacking an operculum, light green corollas, and stamens with filaments. No type material for Cyne quadriangula exists, thus this taxon is only known from the original protologue. It was rediscovered on Bucas Grande Island and that collection was described and used as the neotype for the species. A revised description of the genus and key to the seven species is provided.

Keywords: Caraga region, mistletoe, parasitic plant, Santalales, Eudicots

Cyne barcelonae, sp. nov.
A. habit of mistletoe parasitic on Myrsine sp. B. A young haustorial connection to host branch. Arrow indicates a new vegetative shoot forming on the flank of the haustorium. Note that no epicortical roots are present. C. Terminal portion of vegetative shoot showing two lateral and the central stems assuming a pseudo-whorled appearance. Note the connation of the leaf bases.
D. Non-connate leaves subtending to young shoots with connate leaves, still unopened. E. Young inflorescence with one of the connate leaves removed. Although two pairs of triads can be discerned, their decussate nature is obscure. F. Flowering shoots of plant photographed on Dinagat Island by M. Demetillo. Photos A-E by M. G. Q. Rule.

 

Cyne barcelonae Nickrent & Rule, sp. nov.

Diagnosis:—Similar to C. perfoliata by its basally connate upper leaves and to other species by its possession of sessile decussate pairs of triads composed of 6-merous flowers with a style articulated above the base. It differs from these by having palmate (vs. pinnate) leaf venation, inflorescences that lack an operculum (vs. with an operculum), light green corollas (vs. yellow, red, etc.) and stamens with filaments (vs. sessile anthers).

Etymology:—This species is named in honor of the Filipina botanist Dr. Julie Fenete Barcelona (1972 – ) who has made major contributions to our knowledge of the Philippine flora, particularly for pteridophytes and Rafflesia.

  

Cyne quadriangula Danser, Philipp. J. Sci. 58: 38 (1935)

Conclusions:

It appears that the presence of an operculum cannot now be used as a diagnostic feature of all Cyne species. Despite this, corky periderm tissue subtending the inflorescences, whether it enlarges upon flower maturation or not, may be present among all the species. The well-documented floral features of C. barcelonae, C. banahaensis, and C. quadriangula reported here expand the range of morphological character states known for the genus. It is clear that for the remaining species much more morphological information, obtained from living material, is required to fully understand interspecific relationships and to confirm placement within Cyne (e.g. C. monotrias). Although it is encouraging that new populations of the three Philippine Cyne species have been discovered, continuing environmental degradation, from both natural and anthropogenic causes, decreases the prospect of rediscovering and documenting the exceptionally rare C. baetorta, C. monotrias, C. papuana, and C. perfoliata. Because of their complex life histories and existence at higher trophic levels, these mistletoes are extremely sensitive to environmental perturbation, thus their conservation should be of high priority. In fact, the presence of such rare mistletoes could be used to monitor overall ecosystem health. 

Daniel L. Nickrent and Mark Gregory Q. Rule. 2022. An Evaluation of the Genus Cyne (Loranthaceae) including A New Species and Rediscovery and Neotypification of the Rare C. quadriangula. Phytotaxa. 558(1); 67-80. DOI: 10.11646/phytotaxa.558.1.4

  facebook.com/MGQRule/posts/10218176789126013

 facebook.com/phtaxa/posts/5085616954901161

[Botany • 2022] Macrosolen zamboangensis (Loranthaceae) • A New Mistletoe Species from Zamboanga Peninsula, Philippines

Macrosolen zamboangensis Mazo, Nickrent & Pelser, 

in Mazo, Nickrent & Pelser, 2022. 

  oaj.fupress.net/index.php/Webbia

  twitter.com/Kean_Roe 

 Abstract

 Macrosolen zamboangensis, a new mistletoe species from the Zamboanga peninsula of the island of Mindanao (Philippines), is described. The new species is a member of the widespread M. melintangensis species complex, but differs from the previously described species in this complex in having a conspicuously papillose corolla head. It is also the only species in this complex that displays a combination of papi-lose pedicels, calycula and fruits, at least 3–4 inflorescence axes grouped at a node, and relatively small flowers that are clustered at the apex of a raceme (a subumbel) instead of being more evenly distributed along the inflorescence axis. The conservation status of this new species is considered Vulnerable (V).

Keywords: hemiparasitic plants, Macrosolen melintangensis, mistletoe, species com-plex, taxonomy, western Mindanao.

Morphological features of Macrosolen zamboangensis.
 A. Habit of mistletoe. B. Leaf variation, adaxial surfaces above, abaxial sur-faces below. C. Inflorescence. D. Closer view of flowers in bud stage and at anthesis. E. Infructescences emerging from swollen node. F. Closer view of calyculus/ovary, subtending bract, and pedicel. G. Seed removed from fruit. H. Mature fruit with scale insects on pedicel.

Macrosolen zamboangensis Mazo, Nickrent & Pelser, sp. nov. 

Diagnosis: Macrosolen zamboangensis is similar to species of the M. melintangensis complex, but unique in having conspicuously papillose flowers and fruits in combination with relatively short corollas (i.e. less than 20 mm in mature flower buds) of flowers that are clustered in subumbels. The inflorescences are generally 3–4 per axil, more numerous than in other members of the complex.

Etymology: The specific name refers to the Zamboanga peninsula of the island of Mindanao, Philippines, where this species was discovered.

Distribution and habitat: Thus far, M. zamboangensis is only known from its type locality, which is in a disturbed lowland tropical rain forest and at 320–350 m elevation. Macrosolen zamboangensis was observed growing on Mangifera sp. (Anacardiaceae), Palaqium sp. (Sapotaceae), and species of Sapindaceae.

CONCLUDING REMARKS: 

Naming a new species in a mistletoe genus such as Macrosolen presents a number of challenges. These include the absence of type specimens associated with various names, variations in descriptions of the same taxa by different authors, and weighing the extent of polymorphism present within a taxon prior to considering it a species. Although photographs of herbarium specimens provide invaluable data for this type of work, the quality of specimens varies considerably and crucial details (e.g. of flowers) are not always visible. For the Philippine flora in particular, specimens (including types) were destroyed in WWII and no collections currently held in PNH and various in-country university herbaria are digitized and available for viewing on the internet. To fully explore species boundaries in Macro-solen, the morphological character variation should be examined in the context of a molecular phylogeny, but currently no such data exist. As discussed here, the M. melintangensis complex may contain as few as four and as many as 13 species. All of these taxa can be characterized, more or less, by unique combinations of characters. For the 39 morphological characters considered here, we propose that M. zamboangensis shows sufficient phenotypic differences from other members of the complex to be considered a distinct species.

    

 

Kean Roe F. Mazo, Daniel L. Nickrent and Pieter B. Pelser. 2022. Macrosolen zamboangensis (Loranthaceae), A New Mistletoe Species from Zamboanga Peninsula, Philippines. Webbia. Journal of Plant Taxonomy and Geography. 77(1); 127-134. DOI: 10.36253/jopt-12339 

  oaj.fupress.net/index.php/webbia/article/view/12339

  twitter.com/Kean_Roe/status/1517697104063655936

[Botany • 2022] Decaisnina tomentosa (Loranthaceae) • A New Species of Mistletoe from Samar Island, Philippines

Decaisnina tomentosa M.D.Angeles, Tandang, Carab.-Ort., & Buot, 

in Tandang, delos Angeles, Buot, Devkota et Caraballo-Ortiz, 2022. 

 DOI: 10.3897/BDJ.10.e78457

 Photos: Marjorie delos Angeles.

Abstract

Background: 

The extensive forests over limestone of the Samar Island Natural Park (SINP) on Samar Island, Philippines harbour a rich variety of unique species. In this contribution, we describe and illustrate a new Loranthaceous mistletoe, endemic to Samar Island named Decaisnina tomentosa, representing the 12th member of the genus reported to the Philippines.

New information: 

This new species is similar to D. confertiflora (Merr.) Barlow with respect to the presence of shortly and densely off-white tomentose inflorescence and 6-merous flowers. However, it is unique amongst congeners in having tomentose and partially fused bracteoles which cover almost or entirely the ovary of individual flowers in the triads. To date, D. tomentosa seems to be restricted to the SINP and is only known from a handful of individuals. More studies are needed to properly assess the demography, host range, conservation status and phylogenetic position of this distinctive species of mistletoe.

Keywords: forest over limestone, island endemics, parasitic plants, Samar Island Natural Park, Santalales, taxonomy

Decaisnina tomentosa M.D.Angeles, Tandang, Carab.-Ort., & Buot.
A Inflorescence with distal flowers in buds and proximal flowers at anthesis. B Inflorescence with flower buds. C Inflorescence in a secund raceme showing the tomentose rachis and bracts. D Close-up of bracts and bracteoles showing its tomentose nature. Note the tomentose indument covering all structures. E Twig with opposite leaves. Note the shiny surface of leaves with obscure venation. F Epicortical runner (right side) appressed against the stem of its host. Arrow points to a secondary haustorial connection.

 Photos: Marjorie delos Angeles.

Decaisnina tomentosa M.D.Angeles, Tandang, Carab.-Ort. & Buot, sp. nov.

 Diagnosis: Decaisnina tomentosa (Fig. 1) is similar to D. confertiflora (Merr.) Barlow with respect to the presence of shortly and densely off-white tomentose inflorescence and 6-merous flowers. However, the new species differs by its rounded ste, (vs. stem internode distinctly angular), cuneat leaf base (vs. truncate or slightly cordate at the leaf base) and corolla that is distinctly inflated teice (vs. slightly inflated at the base). Also, the new species has a longer corolla measuring 27.9–29.2 mm (vs. 16–20 mm). Highly distinct flowers that are subtended with a tomentose cup formed by the fusion of the bracteoles with slightly cucullate lobes and glabrous inside which almost or entirely cover the ovary of individual flowers, and corolla tomentose, double inflated at base and middle. We consider that the combination of these and other characters presented in Table 1 are significant for the recognition of this new species.

Etymology: The specific epithet “tomentosa” refers to the short soft indument densely covering the inflorescence of the new species.

Distribution: This new species is known only from the type locality at the SINP in Paranas, Samar Island. The SINP is a protected area under Proclamation No. 442. 2003, pursuant the National Integrated Protected Areas System Act of 1992 (Republic Act No. 7586).

Ecology: Regarding interactions with potential pollinators and seed dispersers, no floral visitors or fruit consumers were observed during our visit to the site. Given the morphological features of flowers and fruits, it is probable that they are pollinated and dispersed by birds. Systematic field observations and experimental studies are needed to assess pollinators and effective seed dispersers and to document interactions with other organisms.

Danilo N. Tandang, Marjorie delos Angeles, Inocencio, Jr. E. Buot, Mohan Prasad Devkota and Marcos A. Caraballo-Ortiz. 2022. Decaisnina tomentosa (Loranthaceae), A New Species of Mistletoe from Samar Island, Philippines. Biodiversity Data Journal. 10: e78457. DOI: 10.3897/BDJ.10.e78457

[Botany • 2021] Decaisnina samaense (Loranthaceae) • A New Mistletoe Species from Simunul Island, Philippines

Decaisnina samaense Tahil, 

in Tahil, 2021. 

 HUH.harvard.edu 

Abstract

 Decaisnina samaense, a new species of Loranthaceae from the Island of Simunul, Southern Philippines, is hereby described and illustrated. It is distinguished from all Decaisnina species by having narrowly lanceolate and narrowly ovate-lanceolate leaf laminae with a remarkable acuminate apex, flower buds being globularly inflated at the base with corolla color being yellow in the lower half and pastel green in the upper half and often blackish at the tip, and inflorescence consistently produce both triads and peduncles along the axis. It is related to Decaisnina stenopetala and D. zollingeri by exhibiting globular inflation at the base of the flower buds but differs from the two by having longer bracts, longer anthers, and the free part of the filament shorter. Decaisnina samaense is hereby assessed as Critically Endangered (CR B1, B2a&c, D). 

Keywords: Decaisnina, globular inflation, Loranthaceae, Mistletoe, Simunul Island, taxonomy

Decaisnina samaense Tahil.
A, plant showing a branch with leaves and and inflorescences; B, close-up view showing the number of pairs of inflorescences. Based on the holotype.

Decaisnina samaense Tahil.
A, young flower buds showing globular inflation at the base; B, flower buds at anthesis; C, adaxial view of reflexed flower buds; D, a pair of inflorescences; E, abaxial view of the inflorescence showing five pairs of triads and two pairs of peduncles (arrows) along the axis; F, dissected flower bud (a, Globular inflated base; b, Corolla; c, Corolla lobes; d, Free part of the filament; e, Anther; f, Stigma; g, Style). Based on the holotype.

Decaisnina samaense Tahil, sp. nov. 

Species nova affinis Decaisnina stenopetala (Oliver) Barlow et Decaisnina zollingeri (Tieghem) Barlow similis, sed foliis paene lanceolatis et paene ovatis-lanceolatis apud praeclarum acuminatae apex, alabastra quod globosam inflatam apud quod fundamen apud corolla color flavor in minus medium et pastellus viridi in superiores medium, saepe nigricans apud apex et inflorescentiae fructus tum triadorum et pedunculus secus axis constantius, bracteis 3–4.5 mm longis, antheris 5–6.5 mm longis et liberis pars autem filamentorum 2–2.2 mm longis distinguita.

Habitat and distribution: Decaisnina samaense is known only from the small Island of Simunul. All the collections were found in the secondary forest of the island at 0-5 m above sea level. The area is dominated by Psychotria sp. (Rubiaceae) and Melicope sp. (Rutaceae). The species was found infecting and growing only on Melicope sp.

Etymology: The epithet of this taxonomic novelty honors the indigenous Sama people of the Simunul Island.

Arkady A. Tahil. 2021. Decaisnina samaense (Loranthaceae): A New Mistletoe Species from Simunul Island, Philippines. Harvard Papers in Botany. 26(2); 471–474. DOI: 10.3100/hpib.v26iss2.2021.n13  HUH.harvard.edu/pdf-downloads

[Botany • 2021] Amylotheca cleofei (Loranthaceae) • A New Species and Genus Record for the Philippines

Amylotheca cleofei  

in Tandang, Galindon, Lagunday, ... et Robinson, 2021.

DOI: 10.11646/phytotaxa.507.1.7

  facebook.com/NationalMuseumofthePhilippines

Abstract

A new mistletoe species, Amylotheca cleofei, from Mount Hamiguitan Range Wildlife Sanctuary, Davao Oriental in the southern Philippines, is herein described and illustrated, representing a new species and genus record for the country. This species differs from other known Amylotheca species in terms of its distinctive reproductive and vegetative characters.

Keywords: endemic, Eudicots, Malesia, Mindanao, Santalales, taxonomy

   

  Amylotheca cleofei

   

Danilo N. Tandang, John Michael M. Galindon, Noel E. Lagunday, Fulgent P. Coritico, Victor B. Amoroso and Alastair S. Robinson. 2021. Amylotheca cleofei sp. nov. (Loranthaceae), A New Species and Genus Record for the Philippines. Phytotaxa. 507(1); 113–120. DOI: 10.11646/phytotaxa.507.1.7

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  twitter.com/cnnphilippines/status/1400991659073048577

    

[Botany • 2018] Amyema lisae (Loranthaceae) • A New Species from Negros Island, the Philippines

Amyema lisae

in Pelser, Olimpos, O'Byrne & Barcelona, 2018. 
DOI:  10.11646/phytotaxa.371.1.3 

Abstract

Our recent fieldwork in the island of Negros, Philippines resulted in the discovery of a species new to science, Amyema lisae (Loranthaceae), and a new record for the Philippines, Gastrodia sabahensis (Orchidaceae), which we describe and report here. Amyema lisae differs from similar species with verticillate phyllotaxy and inflorescences of simple umbels by having relatively smaller leaves and 5-merous flowers that are yellow and tomentose. This new species is named in honor of Lisa J. Paguntalan, a champion of biodiversity conservation in the Philippines. In the same island, we also collected Gastrodia sabahensis, previously only known to occur in Borneo. Our specimens differ from typical plants of this species by having larger flowers with column bases that are slightly broader and stelidia that are broad with blunt apices.

Keywords: Balinsasayao - Twin Lakes Natural Park, Gastrodia verrucosa complex, mistletoe, Northern Negros Natural Park, parasitic plant, taxonomy, Eudicots

Pieter B. Pelser, Shiella Mae B. Olimpos, Peter O'Byrne and Julie F. Barcelona. 2018. A New Species of Amyema (Loranthaceae) and A New Gastrodia (Orchidaceae) Record for the Philippines from Negros Island.  Phytotaxa. 371(1); 25–32. DOI:  10.11646/phytotaxa.371.1.3

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New mistletoe species found only in Negros Oriental named after Philippine wildlife biologist t.co/tpC5Jp9n0g @cebudailynews 

[Botany • 2017] Macrosolen brunsing • A New Hemiparasitic Shrub (Loranthaceae) from Brunei Darussalam [Novitates Bruneienses, 8]

Macrosolen brunsing  Y.W.Low & Ariffin

SBG.org.sg 

ABSTRACT

 Macrosolen brunsing Y.W.Low & Ariffin is described and illustrated here as a new species of aerial hemiparasite based on two collections from the Ladan Hills Forest Reserve, Tutong, Brunei Darussalam. The new species differs from all Macrosolen taxa enumerated in Borneo by its distinct linear leaves ((4–)8–14.5 cm long, 0.1–0.2(–0.25) cm wide). 

Keywords. Borneo, endemic, linear-leaved, Malesia, new species

Fig. 2. Macrosolen brunsing Y.W.Low & Ariffin.
A. Pendulous flowering branch showing distichous almost needle-like linear leaves and a terminal inflorescence. B. Close-up of mature flower buds that somewhat resemble bowling pins. C. Close-up of open flowers. D. Close-up of fruits. All from type Y.W. Low et al. LYW 1081. (Photos: Y.W. Low) 

Macrosolen brunsing Y.W.Low & Ariffin, sp. nov. 

Similar to Macrosolen brevitubus Barlow but differs in having narrow linear leaves ((4–)8–14.5 cm long, 0.1–0.2(–0.25) cm wide), and inflorescence a raceme of two opposite pairs of flowers.

– TYPE: Brunei, Tutong District, Rambai, Ladan Hills Forest Reserve, Nyamokning Dam, BRUN-SING botanical exploration campsite on the edge of forest near water body, lowland mixed dipterocarp forest on yellow sandy clay soils, 75 m asl, 22 August 2016, Y.W. Low, M.I. Siti Nur Bazilah, A.K. Muhd. Ariffin, A. Watu, E. Jangarun, P. Azlan, K. Muhd. Khairul Nizam & Z.A. Muhd. Wafiuddin LYW 1081 (holotype BRUN (including spirit material as part of a single specimen); isotypes E, K, L, SAN, SAR, SING [[SING0166300] & spirit material [SING0202921]). (Fig. 1, 2)

Etymology. The epithet brunsing is composed by merging two herbaria acronyms together, namely BRUN (the Brunei National Herbarium) and SING (Herbarium of the Singapore Botanic Gardens). This new species is named for the two herbaria to celebrate the close working relationship between the two herbaria that can be traced back to the early 80’s. The on-going MoU programme “The Botanical Survey of Brunei Darussalam” continues this cooperation.

 Y.W. Low, A.K. Muhammad Ariffin, A.A. Joffre and D. Duratul Ain. 2017. Novitates Bruneienses, 8. Macrosolen brunsing (Loranthaceae), A New Hemiparasitic Shrub from Brunei Darussalam. Gardens’ Bulletin Singapore. 69(1); 67–73.
https://www.sbg.org.sg/images/4_4_Research_Gardens_Bulletin/4_4_69_1_pdf_Vol_69_Part_1_2017/69_1_67_y2017_V69P1_GBS_pg67.pdf

   

[Botany • 2005] กาฝากวงกลีบแดง | Tolypanthus pustulatus • Tolypanthus (Loranthaceae): A New Genus Record for Thailand and A New Species

ใบเรียงห่างๆ ช่อดอกแบบกระจุกสั้น ติดบนวงกลีบประดับ วงกลีบประดับมี 6-8 กลีบ เป็นสัน ติดกันประมาณกึ่งหนึ่งคล้ายรูประฆัง (ภาพ: ภูวัว หนองคาย)

กาฝากวงกลีบแดง (Tolypanthus pustulatus Barlow)

กาฝากพุ่ม สูงประมาณ 50 ซม. ลำต้นเกลี้ยง มีช่องอากาศกระจายห่างๆ ใบเรียงห่างๆ รูปขอบขนานหรือรูปใบหอก ยาว 9-11 ซม. ปลายใบแหลมหรือแหลมยาว โคนใบรูปลิ่มหรือเรียวสอบเป็นปีกจรดก้านใบ แผ่นใบค่อนข้างหนา สีเขียวด้านๆ ทั้งสองด้าน ก้านใบยาวประมาณ 1 ซม. ช่อดอกแบบกระจุกสั้น ติดบนวงกลีบประดับ ออกตามซอกใบ วงกลีบประดับมี 6-8 กลีบ เป็นสัน ติดกันประมาณกึ่งหนึ่งคล้ายรูประฆัง ยาว 1.5-2 ซม. สีแดงอมชมพู ปลายกลีบรูปสามเหลี่ยม ก้านช่อดอกยาว 0.2-0.4 ซม. ดอกย่อยมี 4-6 ดอก ติดที่โคนวงกลีบประดับ เกือบไร้ก้าน กลีบเลี้ยงมีขนหนาแน่น หลอดกลีบยาว 1.2-2 มม. กลีบบางขนาดเล็ก ยาวประมาณ 0.7 มม. กลีบดอกสีขาว มีแถบเป็นสันสีแดงอมชมพู ติดกันเป็นหลอดยาวประมาณ 2 ซม. ปลายแยกเป็น 5 กลีบ ยาวประมาณ 1 ซม. พับงอ ผิวด้านนอกพองตั้งแต่ปลายกลีบจนถึงช่วงพับงอ เห็นชัดเจน (ซึ่งเป็นที่มาของชื่อชนิด pustulatus ที่แปลว่าเป็นตุ่ม) เกสรเพศผู้ 5 อัน ติดบนหลอดกลีบ ยาวประมาณ 2/3 ของความยาวกลีบช่วงพับงอ ก้านเกสรเพศเมียเรียวยาว ยอดเกสรเป็นตุ่ม

กาฝากวงกลีบแดงเป็นพืชถิ่นเดียวของไทย พบเฉพาะที่ภูวัว จังหวัดหนองคาย เป็นกาฝากขึ้นบนต้นไม้ในวงศ์อบเชย (Lauraceae)

Abstract: The genus Tolypanthus (Loranthaceae ) is newly recorded for Thailand, comprising Tolypanthus lageniferus (Wight) Tieghem and a new species, T. pustulatus Barlow, which is described and illustrated.

Barlow, B. A. 2005. Tolypanthus (Loranthaceae): A New Genus Record for Thailand and A New Species. Thai Forest Bulletin (Bot.) 33: 1-7.: http://web3.dnp.go.th/botany/PDF/TFB/TFB33/TFB33_1.pdf

http://web3.dnp.go.th/botany/detail.aspx?words=กาฝากวงกลีบ