Category: Sect. Macrocaulia

''New records of three miniature orchids from Phu Quoc National Park, Vietnam''

4/15/2019

Ba Vuong TRUONG, Minh Dung LE, Hong Quan NGUYEN, Phuoc Hau NGUYEN & Jim COOTES

Bulbophyllum physocoryphum Photo: M. D. Le

Bulbophyllum tenuifolium Photo: M. D. Le

Abstract: Three new miniature or- chids are recorded for Orchids of Vietnam from Phu Quoc National Park: Bulbophyllum physocoryphum SEIDENF., Bulb. tenuifolium (BLUME)LINDL. and Oberonia griffithiana LINDL. These three species are new locality records for Vietnam. Data about ecology, phenology, distribution are provided as well as photo plates.

Bulbophyllum physocoryphum Seidenf. was recorded previously by L. AVERYANOV in Gia Lai province - AVERYANOV (2018). This species before could only be found in Thailand and Cambodia.
This miniature yellow-pale green species was found growing as an epiphyte on a tree trunk from basal half of rough trunks where there are many mosses, high humidity at primary evergreen broad-leaved forests; altitude around 380 to 540 m asl.; fl owering in January; very rare.

Bulbophyllum tenuifolium (Blume) Lindl. was found growing as an epiphyte on small high branches or rarely on the apical part of tree trunks in primary evergreen broad-leaved forest, sometimes along streams, altitude around 370 to 540 m asl.; fl owering in January; rare.

Published in Die Orchidee 5(05), 2019/E-Paper
https://orchidee.de/e-paper/taxonomische-mitteilungen/

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''Some amazing Miniature Bulbophyllum Species from the Philippines''

12/1/2018

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Jim Cootes & Dr. Wolfgang Rysy

The type plant of Bulbophyllum betchei F.Muell. (sect. Polymeres) was collected by the German orchid collector Ernst BETCHE on Samoa and this species was named in his honour. The small epiphyte has a patent to pendolous, sparsely branched rhozome, which is up to 10 cm long. The red-brown striped flowers appear from the base of the pseudobulbs and are about 1.2 cm across the widest point. It is a most attractive plant. This is a widely distributed species, which has been found in Java, Borneo, Sulawesi, New Guinea, the Carolines, Vanuatu, New Caledonia, Fiji and Samoa. In the Philippines it has been found on the island of Leyte and Samar, where it grows as an epiphyte at elevations of about 600 m.

Bulbophyllum canlaonense Ames (sect. Minutissima) was described from plants collected on the active vocano, Mount Kanlaon, which is on the island of Negros. It was named after this volcano. There is considerable variation in the colouration of this species. The first author has seen flowers which are golden brown and others which are claret red. It is endemic to the Philippines and has been recorded from Benguet province on Luzon, the islands of Leyte, Negros, Panay and Samar in the Visayan Sea, as well as Bukidnon and Misamis on Mindanao, where it grows as an epiphyte on the branches and trunks of trees at elevations of between 1300 and 2300 m.

This exquisite (= lat. exquisitus) miniature plant has beautiful, large flowers about 1.5 cm across. Bulbophyllum exquisitum Ames (sect. Macrocaulia) is endemic to the Philippines and has been recorded from the Mountain province; the island of Leyte in the Visayan Sea; and the province of Misamis Oriental on Mindanao, where it grows as an epiphyte at elevations above 2000 m.

Bulbophyllum lipense Ames (sect. Hybochilus) appears to be closely related to Bulbophyllum colubrimodum, but differs in the broader, shorter floral segments. The specific epithet refers to Mount Lipa in Bukidnon province, where the type specimens were collected. It is endemic to the Philippines and is only known from the provinces of Bukidnon and Misamis on the island of Mindanao where it grows as an epiphyte at elevations of around 1200 m.

Bulbophyllum ovalifolium (Blume) Lindl. (sect. Macrocaulia), with small pseudobulbs and more or less oval leaves (= lat. ovalifolius) is a most delightful species with its brightly coloured blooms up to 2 cm diameter. The colour is extremly variable ranging from bright yellow, to orange, and dull red. The hair like inflorescence is about 6 cm long and carries only a single flower, which stands well above the foliage. It is a widley spread species and it has been recorded from Thailand, Peninsular Malaysia, Sumatra, Java, Sulawesi (Celebes), and Borneo. In the Philippines, it is known from the island of Biliran; the provinces of northern Mindanao; and Palawan, where it grows as an epiphyte at elevations over 500 m.

Bulbophyllum restrepia (Ridl.) Ridl. (sect. Hoplandra) was first (1893) described as Cirrhopetalum restrepia, which stretches definitions of that genus to the limit. The epiphet makes reference to the similarity with flowers of the genus Restrepia. It is a widely distributed species, which has been recorded from Peninsular Malaysia, Sumatra, Borneo Maluku (the Moluccas) and New Guinea. In the Philippines it is known from the island of Samar; and the north on Mindanao, where it grows asa an epiphyte at elevations of about 300 m.

Photos by J. Cootes, R. Boos & W. Suarez

Published in Die Orchidee 69(6) 2018: 438 - 445

https://orchidee.de/gesellschaft/die-orchidee/

Abstract: The Genus Bulbophyllum is represented, in the Philippines, by at least 130 species. Many of the species have large flowers, but there are just as many that have small, but still very showy blooms. It is these miniatures which we wish to introduce here.

Bulbophyllum boosii J.J.Verm. & Kindler (sect. Polymeres) has recently been found on northern Mindanao and only named three years ago. The origin of the type plant is not known, but Mr. Ronny BOOS shares a photo of a different plant from Samar. This species was named in his honour. The whole plant is only 4 - 5 cm tall. The blooms are 1.5 cm large and a most attractive yellow in colour, the labellum is in the front area almost black, which makes a very nice contrast. There is a form of this species, which occurs on the island of Sibuyan that has black petals. The plants from Samar were found at about 600 m elevation, whereas those from northern Mindanao come from about 1200 m.

Bulbophyllum colubrimodum Ames (sect. Hybochilus) is endemic to the Philippines and has been recorded from the islands of Mindoro and Leyte, the provinces of Misamis and Zamboanga on Mindanao. The specific epithet refers to the apex of the labellum, which in some positions, resembles the head of a snake, about to strike. This is also a very variable species in its colouration. The flowers are non-resupinate (having the labellum uppermost). It grows as an epiphyte at elevations of about 600 m.

Bulbophyllum halconense Ames (sect. Minutissima) is named after Mount Halcon, on the Island of Mindoro, which is reputably one of the most treacherous mountains in the Philippines. The plant has conical pseudobulbs that have a wrinkled appearance. The flowers are about 3 cm in height. It is endemic to the Philippines and has also been recorded from Zambales province on Luzon; and Mount Halcon in the north of the island of Mindoro, where it grows as an epiphyte on the branches and trunks of trees at elevations of between 1500 and 2500 m.

Bulbophyllum mindorense Ames (sect. Minutissima) is barely 3 cm tall, but it carries flowers, which are more than 2 cm in diameter. The inflorescence extends well past the foliage and can appear from either the base of the pseudobulb or along the rhizome. It has been recored from southern Luzon, the islands of Mindoro (named after this island), Leyte and the province of Misamis Oriental on Mindanao.

Bulbophyllum peramoenum Ames (sect. Minutissima) is a most delightful species (= lat. peramoenus), with its whisker-like petals and amazing labellum, the tip of which has the appearance of insect eggs, or white aphids. When the first author first saw the tip of the labellum he thought it had been nibbled on by a snail or slug. It is endemic to the Philippines and has been found on the islands of Mindoro and Leyte, the provinces of Bukidnon, Misamis Oriental and Zamboanga on the island of Mindanao, where it grows as an epiphyte at elevations of about 1200 m.

Bulbophyllum rubrolingue Cootes et Boos (sect. Polymeres) is a most beautiful species with a large flower about 5 cm in height. The blooms open widley and are most pleasantly coloured; the tongue-shaped lip is red (lat. rubrolingua). It is endemic to the Philippines and is only known from the island of Leyte in the Visayan Sea, where it grows in rain forest, at elevations of around 600 m.

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''New species of Bulbophyllum (Orchidaceae) in the flora of Vietnam''

9/12/2018

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Leonid V. Averyanov, Nong Van Duy, Nguyen Hoang Tuan, Maxim S. Nuraliev, Tatiana V. Maisak & Nguyen Cong Anh

Bulbophyllum cariniflorum var. orlovii Photo: N. Orlov

Bulbophyllum sonii Photo: N. X. Son

Bulbophyllum ustulata Photo: N. Orlov

Bulbophyllum flavescens Photo: N. Orlov

Bulbophyllum physocoryphum Photo: N. Nuraliev

Bulbophyllum ovatum Photo: L. Averyanov

Bulbophyllum wendlandianum Photos: N.H. Tuan

Abstract: Three taxa, Bulbophyllum cariniflorum var. orlovii (sect. Pleiophyllum), Bulbophyllum sonii (sect. Anisopetalon) and Bulbophyllum ustulata (sect. Brachystachya) are described as new for science. All of these novelties are local endemics of Vietnam. Additionally, four species, Bulbophyllum flavescens (sect. Aphanobulbon), Bulbophyllum ovatum (sect. Desmosanthes), Bulbophyllum physocoryphum (sect. Macrocaulia) and Bulbophyllum wendlandianum (sect. Cirrhopetalum) are recorded for the flora of Vietnam for the first time. These species are endemic of the Indochinese Peninsula in a broad sense, except for Bulbophyllum flavescens having wide distribution in western Malesia. Data on ecology, phenology, distribution, brief relevant taxonomic notes, as well as colour photographs and line drawings of the type and voucher specimens are provided for all reported taxa. Lectotypification is provided for Bulbophyllum wendlandianum.

Bulbophyllum cariniflorum has for a long time been taxonomically placed into a rather formal artificial group of deviated Bulbophyllum species known as a B. section Pleiophyllum (Seidenfaden, 1979; Pearce & Cribb, 2002; Chen et al. 2009). All these species have more or less similar 2-leaved pseudobulbs that is quite unusual for the genus. Meanwhile, species of this section show hardly close relations. At least B. cariniflorum and its close allies, such as B. triste Reichenbach (1861: 253) and B. viridiflorum (Hooker 1890: 779) Schlechter (1910: 108) look much more close to some members of B. sect. Anisopetalon (Hooker 1825: tab. 149) Lindley (1846: 181) according to their floral morphology. Our plant undoubtedly belongs to this group and most close to B. cariniflorum distributed mainly in the Himalayas. However, it distinctly differs from other known specimens of this species in such morphological details as large, slightly flattened, often 3-leaved pseudobulbs (1.8)2.5–3.0(3.4) cm tall and wide (vs. 2-leaved ovoid pseudobulbs 1–1.5 cm tall), large leaves (10)12–18(20) cm long (vs. 12–15 cm long), long panicle (2.0)3.0–5.0(6.5) cm long (vs. 2–3 cm long), narrowly ovate floral bracts (vs. narrowly lanceolate) and falcate, back curved stelidia (vs. straight erect subulate stelidia). Described variety belongs to species newly recorded in the flora of Vietnam. The discovery of our plant in Vietnam essentially extends the known species distribution area to the East and represents its first record in eastern Indochina.

Bulbophyllum sonii belongs to the rather formal group of species with simple lip (having no auricles or any other ornamentation) belonging to B. sect. Anisopetalon (= Racemosae). Bulbophyllum brevispicatum Z.H.Tsi & S.C.Chen (1994: 555) and B. triviale Seidenfaden (1979: 111) are probably most close to our plant. Some species with auriculate lip, e.g. B. allenkerrii Seidenfaden (1979: 112) and B. bittnerianum Schleichter (1910: 108), also show certain similarity with the new species. Our plant strikingly differs from all more or less similar known species in its dwarf habit, pendulous inflorescence, twice smaller flowers and curious setose hairiness on abaxial surface of sepals consisting of white dense papillous hairs.

Bulbophyllum ustulata belongs to B. sect. Brachystachya (= B. sect. Globiceps ) and is allied to some Himalayan taxa, namely Bulbophyllum conchiferum Reichenbach (1861: 253), B. cylindraceum Lindley (1830: 53) and B. khasyanum Griffith (1851: 284). Similarly, to these species, our plant possesses very small pseudobulbs, elongate, nodding, spadix-like, dense inflorescence with small sessile, flattened, overlapping flowers densely appressed to rather fleshy rachis. Meanwhile, the discovered plant cannot be identified as any of the above-mentioned species. Among the mentioned species, the new species may be most close to B. conchiferum undeservedly regarded as a synonym of B. khasyanum (Pearce & Cribb 2002), which type specimen has short, almost head-like spike. Inflorescence and flowers of B. ustulata fits well the excellent analytical drawing presented on type herbarium specimen of B. conchiferum stored at K [K000894441] in elongate rachis, dense, shell-like sessile flowers, acuminate, revolute apex of median sepal, acuminate recurved petals, 2-keeled lip and long stelidia. However, our plant differs from B. conchiferum in large involucral sheathing bract at the base of rachis (a feature that is also observed in typical samples of B. cylindraceum), glandular hairy median sepal, straight stelidia (vs. stelidia at the middle upward bent) and fleshy inflated margin of stigma close to the base of column foot. The new species was collected in a single location near summit of Phu Xai Lai Leng Mountain very close to the Laotian border.

The discovery of Bulbophyllum flavescens (Blume) Lindl. previously believed to be a Malesian endemic in northern Vietnam is remarkable and unexpected. The newly discovered quite isolated location expands known distribution area of this species almost 2000 km in northwestern direction and illustrates well the connection of Malesian flora with marginal tropical floras of mainland Asia. At the same time, the discovered Indochinese population certainly possesses relict nature and surely represents ancient geographical isolation resulted in some morphological divergence. The studied Vietnamese plants well differ from quite variable specimens described in details from the main area of the species distribution (Comber 1990, 2001, Seidenfaden & Wood 1992) in larger flowers with sepals 13–15 mm long (vs. sepals 6–8 mm long in Peninsular Malaysia and 10–11 mm long in Sumatra and Java) and narrowly lanceolate leaves 1.6–2 cm wide (vs. broadly lanceolate leaves 2–3 mm wide). In this connection, our plants probably represent a separate variety and need additional studies.

The specimens of Bulbophyllum ovatum Seidenfaden look identical with the species described from southern Thailand (Seidenfaden 1979) and initially regarded as local endemic of the Malay Peninsula. The population of this species discovered in northern Vietnam is distant from locus classicus at more than 1200 km in NNE direction.

Recent discovery of Bulbophyllum physocoryphum Seidenfaden in southern Vietnam and in Cambodia (Averyanov et al. 2016a) provides evidence of its much border distribution in southern Indochina than it was expected before.

The present discovery extends known distribution area of Bulbophyllum wendlandianum to almost 1000 km in SE direction and adds one more eastern Himalayan species to the flora of Vietnam. There are few doubts that this rare species may also be found in northern Laos. This species may be regarded as a true endemic of northern Indochina. Type herbarium material of B. wendlandianum was most likely destroyed or lost: “I do not know if a type specimen of Kränzlin’s plant exists, ...” (Seidenfaden 1972). Hence, the drawing which was probably based on the original material is designated here as a lectotype.

Note(b.info): Following G.A. Fischer & Vermeuelen 2014 and Vermeulen et al. 2014, B. cariniflorum v. orlovii belogns to sect. Lemniscata, B. sonii to sect. Racemosae, B. flavescens to sect. Stachysanthes and B. wendlandianum to sect. Cirrhopetaloides.

Published in Phytotaxa 369 (1): 1 - 14
DOI: https://doi.org/10.11646/phytotaxa.369.1.1

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''Nineteen new orchid species from northern Mindanao, Philippines''

4/17/2018

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Derek D. Cabactulan, Jim Cootes, Miguel David De Leon, Reynold B. Pimentel, Fernando B. Aurigue, and Neil K. Binayao III

Bulbophyllum alboaligerum Photo: Miguel D. de Leon

Bulbophyllum crassiusculum Photo: Miguel D. de Leon

Bulbophyllum prasinoglossum Photo: Miguel D. de Leon

Bulbophyllum puberulosum Photo: Miguel D. de Leon

Bulbophyllum vinicolor Photo: Miguel D. de Leon

Epicrianthes charishampliae Photo: Miguel D. de Leon

Epicrianthes jimcootesii Photo: Miguel D. de Leon

Epicrianthes neilkonradii Photo: Miguel D. de Leon

Abstract: (...), Bulbophyllum alboaligerum (sect. Macrocaulia) Cabactulan, Cootes, M.D. De Leon & Pimentel, Bulb. crassiusculum (sect. Stachysanthes) Cabactulan, Cootes, M.D. De Leon & Pimentel, Bulb. prasinoglossum (sect. Brachystachyae) Cabactulan, Cootes, M.D. De Leon, & Pimentel, Bulb. puberulosum (sect. Stachysanthes) Cabactulan, Cootes, M.D. De Leon, & Pimentel, Bulb. vinicolor ( sect. Brachystachyae) Cabactulan, Cootes, Aurigue, Pimentel & M.D. De Leon, (...), Epicrianthes charishampeliae Cabactulan, M.D. De Leon, Cootes & Pimentel, Epicr. jimcootesii Cabactulan, M.D. De Leon & Pimentel, Epicr. neilkonradii Cabactulan, Cootes, M.D. De Leon & Pimentel, (...), are all described as new to science.

Bulbophyllum alboaligerum is most similar to Bulb. leproglossum J.J. Vermeulen and Lamb from Borneo. It differs in the edges of the dorsal sepal and the petals, which in Bulb. alboaligerum are slightly erose, whilst the dorsal sepal and petals of Bulb. leproglossum are entire; and the apices of the labellum which in Bulb. alboaligerum is papillose, whereas that of Bulb. leproglossum is glabrous. The lateral sepals are also occasionally adnate as in Bulbophyllum pelicanopsis J.J. Verm & Lamb.

Bulbophyllum crassiusculum is most similar to Bulb. unguiculatum Rchb. f., but differs in the shape of the labellum which in Bulb. crassiusculum is sharply curved downwards with a recurving apex, the labellum of Bulb. unguiculatum is evenly curved; the edge of the labellum of Bulb. crassiusculum is minutely ciliate, whereas the edge of the labellum of Bulb. unguiculatum is entire; the petals of Bulb. crassiusculum are lanceolate, whereas the petals of Bulb. unguiculatum are obovate to elliptic.

Bulbophyllum prasinoglossum is most similar to Bulb. submarmoratum J.J. Sm., but differs in the much shorter, upright infl orescence of Bulb. prasinoglossum; and the positioning of the ridges on the labellum, which in Bulb. prasinoglossum are in a central position, close together, the central ridges on the labellum of Bulb. submarmoratum are more widely spaced; the petals of Bulb. prasinoglossum are ovate, whereas those of Bulb. submarmoratum are triangular.

Bulbophyllum puberulosum is most similar to Bulb. crassiusculum Cabactulan, Cootes, M.D. De Leon and Pimentel, but differs in the size of the flowers, 6 mm across the lateral sepals in Bulb. crassiusculum versus 4.3 mm across the lateral sepals in Bulb. puberulosum; the shape of the leaves in Bulb. crassiusculum are semi-terete, whereas the leaves of Bulb. puberulosum are flattened (this feature has remained constant amongst the flowering plants examined from different localities); and the keel of Bulb. crassiusculum, at its column foot is low and bluntly, broadly triangular when viewed in profi le, whereas the keel of Bulb. puberulosum is more prominent and runs from the centre of the column foot to the column; when viewed from the front it is triangular, raised, and well-demarcated from the column foot.

Bulbophyllum vinicolor is most similar to Bulb. hyposiphon from Borneo but differs in the shape of the labellum, which in Bulb. vinicolor is distinctly recurved, with a deep channel lengthwise, whereas the labellum of Bulb. hyposiphon is gently curved; the shape of the stelidia of Bulb. vinicolor are three-toothed at the apex, whereas the stelidia of Bulb. hyposiphon have a single, minute tooth centrally.

Epicrianthes charishampeliae is most similar to Bulbophyllum stenomeris J.J. Verm. and O’Byrne, from section Epicrianthes, but differs in the ornamentation of the labellum, which in Epicr. charishampeliae is vesiculate, whereas the labellum of Bulb. stenomeris is almost glabrous; and the column of Epicr. charishampeliae which bears a single, downward-pointing tooth, whereas the column of Bulb. stenomeris bears two, downward-pointing teeth.

Epicrianthes jimcootesii is most similar to Epicrianthes davidii, but differs in the number of appendages on the petals, which in Epicr. jimcootesii number up to 10 on each side, whereas the petal appendages of Epicr. davidii number up to 6 only on each side; the labellum of Epicr. jimcootesii is heavily papillose on its sides and underside, whereas the labellum of Epicr. davidii is glabrous.

Epicrianthes neilkonradii is most similar to Epicr. aquinoi Cootes, M.D. De Leon and Naive, but differs in surface structure of the labellum which in Epicr. neilkonradii is vesicular to papillose, whereas the labellum surface of Epicr. aquinoi is glabrous; the petal appendages of Epicr. neilkonradii vary from three to fi ve in number (the outer two can be vestigial), whereas the petal appendages of Epicr. aquinoi are always three in number; and the leaves of Epicr. neilkonradii are lanceolate and purplish dark green, whilst those of Epicr. aquinoi are ovate to ovate-cordate and plain green to bright green.

Published in OrchideenJournal, Vol. 6-2: 3 - 21
http://www.orchideen-journal.de/descriptions.htm

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''New records of three miniature orchids from Phu Quoc National Park, Vietnam''

Ba Vuong TRUONG, Minh Dung LE, Hong Quan NGUYEN, Phuoc Hau NGUYEN & Jim COOTES

''Some amazing Miniature Bulbophyllum Species from the Philippines''

Jim Cootes & Dr. Wolfgang Rysy

''New species of Bulbophyllum (Orchidaceae) in the flora of Vietnam''

Leonid V. Averyanov, Nong Van Duy, Nguyen Hoang Tuan, Maxim S. Nuraliev, Tatiana V. Maisak & Nguyen Cong Anh

''Nineteen new orchid species from northern Mindanao, Philippines''

Derek D. Cabactulan, Jim Cootes, Miguel David De Leon, Reynold B. Pimentel, Fernando B. Aurigue, and Neil K. Binayao III

Published in OrchideenJournal, Vol. 6-2: 3 - 21http://www.orchideen-journal.de/descriptions.htm

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Published in OrchideenJournal, Vol. 6-2: 3 - 21
http://www.orchideen-journal.de/descriptions.htm