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''Bulbophyllum championii, a new species''

6/30/2019

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Rudolf Jenny


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Bulbophyllum championii     Photo: R. Amsler
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Bulbophyllum longicaudatum    Photos: R. Amsler
Abstract: Rudolf Jenny describes and illustrates Bulbophyllum championii, a new species from New Guinea. 
While visiting the huge orchid collection at Roland Amsler's nursery in Sirnach, Switzerland, the author saw many unusual and interesting Bulbophyllum species. One such was a large, golden-flowered species, which proved to be new to science. R. Jenny describes it here for the first time as B. championii.

Bulbophyllum championii is similar to B. longicaudatum and B. nasica, both of which were originally described under other names. In 1909, Johan Jacob Smith described and illustrated Bulbophyllum blumei var. pumilum in the journal Nova Guinea. When Rudolf Schlechter published his treatment of the orchids of New Guinea in 1913, Repertorium Specierum Novarum Regni Vegetabilis, Beihefte, he raised Smith's Bulbophyllum blumei var. pumilum to the rank of species but changed the name to Bulbophyllum nasica because the name Bulbophyllum pumilum had already been used by Lindley in 1830. A second variety of Bulbophyllum blumei was published and illustrated by J.J. Smith in 1911, again in the journal Nova Guinea, as B. blumei var. longicaudatum. In 1914, Smith decided to accept this variety as a species in its own right and named it Bulbophyllum longicaudatum, in Bulletin du Jardin Botanique de Buitenzorg.
Bulbophyllum longicaudatum and Bulbophyllum nasica are both in section Ephippium (Note: Following G.A. Fischer & J.J. Vermeulen 2014 and J.J. Vermeulen et al. 2014, both species belong to section Polymeres. Section Ephippium is now used by J.J.Verm. & P.O'Byrne (2014) for a group of species former members of the section Cirrhopetalum s.l.) and are almost identical, except for the size of the tails of the lateral sepals. Some authors treat the two binomials as synonyms, others treat them as two distinct species. Both concepts are very variable in flower colouration, and both are widley distributed in New Guinea.

Bulbophyllum championii is similar to B. longicaudatum. However, the flowers of B. championii are golden yellow. They are a third to double the size of those of B. longicaudatum, the lateral sepals are much broader with longer tails, and the petals have a distinctly warty surface.
Roland Amsler first saw this species in the orchid collection of Jeffery Champion in Bedugul, on the island of Bali. Roland aquired several plants, which later flowered in his collection.

Published in The Orchid Review, June 2019: 91 - 95.
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''Bulbophyllum yarlungzangboense (Orchidaceae; Epidendroideae; Malaxideae), a new species from Tibet, China''

5/31/2019

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Jian-Wu Li, Xi-Long Wang, Cheng-Wang Wang, Bo Pan, Zhu-Qiu Song, Xiao-Hua Jin


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Bulbophyllum yarlungzangboense​     Photos: Jian-Wu Li

Abstract: Bulbophyllum yarlungzangboense, a new species of Orchidaceae from Tibet, China is described and illustrated, it is morphologically similar to Bulbophyllum gamblei and Bulbophyllum shweliense, but can be easy distinguished from the later by petals ovate-oblong, stelidis triangular, base of column foot with V-shape cushion. The new species is tentatively assigned to sect. Desmosanthes based on morphological characters.

During a botanical survey to Bomi County, Tibet, China in November 2017, some plants of Bulbophyllum with young inflorescence were transferred to Xishuangbanna Tropical Botanical Garden (XTBG), and flowered on Dec. 18, 2017.
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XTBG researchers carried out morphological studies and consulted a large amount of literature. They confirmed that the flowering Bulbophyllum plant is new to science. They named it as Bulbophyllum yarlungzangboense to refer to Yarlungzangbo Grand Canyon where it was discovered. 

Bulbophyllum yarlungzangboense grows epiphytic on trees or mossy rocks near to the riverside in Yarlungzangbo Grand Canyon, at elevations about 1700–2100 m. It flowers from November to December. 

Published in Phytotaxa 404 (2): 79 - 84
​DOI: http://dx.doi.org/10.11646/phytotaxa.404.2.3
https://www.mapress.com/j/pt/article/view/phytotaxa.404.2.3
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Article from the Chinese Academy of Science
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''New species of Bulbophyllum (Orchidaceae) in the flora of Vietnam II''

5/24/2019

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Leonid V. Averyanov, Khang Sinh Nguyen, Ba Vuong Truong, Van Canh Nguyen, Tatiana V. Maisak, Tran Huy Thai, Pham Thi Thanh Dat & Bao Ngan Tu


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Bulbophyllum layae     Photo: T. Ba Vuong
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Bulbophyllum metallica     Photo: L. Averyanov
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Bulbophyllum papilligerum     Photos: D. Slastunov & L. Averyanov
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Bulbophyllum alcicorne     Photos: Nguyen Van Canh
Abstract: Three species, Bulbophyllum layae, Bulbophyllum metallica and Bulbophyllum papilligerum (all from sect. Cirrhopetalum) are described as new for science. All of these novelties are local endemics of limestone areas of northern Vietnam.  Additionally, three species, Bulbophyllum alcicorne (sect. Brachystachya), Bulbophyllum psittacoglossum and Bulbophyllum yunnanense (both from sect. Sestochilus) are recorded for the flora of Vietnam for the first time. These species have wide distribution in mainland Asia. Data on ecology, phenology, distribution, brief relevant taxonomic notes, as well as color photographs, analytical plates of the type and voucher specimens are provided for all reported taxa. Lectotypification is provided for Bulbophyllum yunnanense.

Bulbophyllum layae superficially resembles juvenille specimens of widespread and variable B. pecten-veneris
(Gagnepain 1931: 6) Seidenfaden (1974: 37), but well differs in short inflorescence scape, as long, or little longer than flowers (vs. scape much longer than flowers), small flowers 2.5–3 cm long (vs. flowers more than 4 cm long) and dense setose white hairiness of basal half of the lip (vs. lip with no hairs). Very few known about new species ecology. Most probably new species like B. pecten-veneris inhabits limestone forests at elevation 500–1500 m.
Bulbophyllum metallica belongs to Bulbophyllum sect. Cirropetalum s.l. on the base of its floral morphology and formally allies to the group of species having short scape, few-flowered loose umbel-like inflorescence, entire margin of sepals and petals, simple lip and lateral sepals twisted at the base and connate on lower and upper edges. In eastern Indochina such combinations of morphological features exhibit such species as B. seidenfadenii A.D. Kerr, B. spathulatum (E.W. Cooper) Seidenf. and B. unciniferum Seidenf. From these species (as well as from other members of the section Cirropetalum) our plant strikingly differs in pendulous stems to 1.5 m long, narrowly cylindric, petiolelike pseudobulbs to 7 cm long (3–5.5 mm in diameter), long down hanging coriaceous leaves to 40 cm long with blue-green metallic shine on adaxial side and very shot scape, less than 1.5 cm long. Fleshy, hardly opening, white, purple speckled flowers are also very distinct from all other species known in Indochina. Even sterile plants are easy recognizable for amazing metallic blue or blue-green shining of adaxial leaf surface. For this remarkable character, plant was noted as a new species already in 2001 (LE01042169). However, plants with flowers used for appropriate description were found only seventeen years later. According to available data, new species is very rare plant growing usually along mountain streams in particular humid habitats.
Bulbophyllum papilligerum may be attributed to Bulbophyllum sect. Cirropetalum on the base of its obvious floral morphology. Among species of this section, it may be solely compared with Bulbophyllum flaviflorum (Tang, S. Liu & H.Y. Su) Seidenf., Bulbophyllum hirundinis (Gagnep.) Seidenf. and Bulbophyllum pecten-veneris (Gagnep.) Seidenf. (and Bulbophyllum fimbriperianthium W.M.Lin, Kuo Huang & T.P.Lin) From these species, discovered plant differs in erect scape (vs. scape pendulous or horizontal, down arching), headlike inflorescence (vs. umbellate inflorescence when flowers are spaced in one plane), smaller flowers 1.4–1.5 cm long (vs. flowers longer than 2 cm), lateral sepals free along lower margin, slightly broadening to obtuse or blunt apex (vs. lateral sepals joined along lower margin, tapering to acuminate or caudate apex), petals round at apex (vs. petals acute), bunch of fat long papillae on abaxial surface near petal apex (vs. petals ciliate or fimbriate along the margin, hairless on abaxial surface), adaxial surface of petal apex with many dense short conical glass-like papillae (vs. petal surface with no particular glass-like papillae), nor particular stelidia (vs. stelidia prominent, subulate), anther margin slightly erose (vs. frontal anther margin distinctly denticulate or fimbriate).

Published in Phytotaxa 404 (6): 231–244
DOI: ​https://doi.org/10.11646/phytotaxa.404.6.2
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''Bulbophyllum claviforme, a new species from Vietnam''

5/15/2019

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Ba Vuong Truong, Quam Tam Truong, Van Huong Bui & Jim Cootes


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Bulbophyllum calviforme     Photos: B.V. Truong

Abstract: The new species, Bulbophyllum claviforme, originated from Son La province and was cultivated in Ho Chi Minh City. The publication presents a detailed description and figures for this species. It differs from all known members of the Bulbophyllum alliance by the color of the flowers, the short inflorescence, and the clavate hairs along the margin of the dorsal sepal and petals.

Bulbophyllum claviforme resembles Bulb. pecten-veneris and Bulb. flaviflorum but differs in its flower color – yellowish orange vs red (Bulb. pectenveneris), yellowish green (Bulb. flaviflorum) – distinctly short inflorescence of Bulb. claviforme, which is as long, or little longer than flowers (vs. scape much longer than flowers of Bulb. pecten-veneris and Bulb. flaviflorum), small flower 20 – 25 mm long (vs flowers more than 40 mm long), the dense yellow clavate hairs along the margin of dorsal sepal and petals (vs fimbriate-ciliate edges of the margins of the dorsal sepal and petals of Bulb. pecten-veneris and Bulb. flaviflorum), dorsal sepal broadly ovate and acute apex (vs long caudate) and petals ovate, apex obtuse-rounded (vs ovate, apex acute).

It grows in Vietnam, Son La province in evergreen
broad-leaved humid forests as a epiphyte on tree branches where it flowers in August.

Published in Die Orchidee 5(07), 2019/E-Paper
https://orchidee.de/e-paper/taxonomische-mitteilungen/​

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''Bulbophyllum macranthum f. alboviride, eine neue Farbform – in Vietnam gefunden''

4/30/2019

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Nguyen Hoang Tuan, Olaf Gruß & Chu Xuân Can


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Bulbophyllum macranthum f. alboviride     Photo: N. H. Tuan

Abstract: A new colorform of Bulbophyllum macranthum RCHB. F. was found in Vietnam. The white to greenish colorform without any red or pink coloration is described as Bulbophyllum macranthum forma alboviride.

The new forma is similar to the typical forma Bulbophyllum macranthum RCHB. F., Edwards’s Botanical Register 30: t. 13, 1844, but the new forma differs by the color.
The sepals, petals and the lip are greenish white without any red coloration.

Published in Die Orchidee 5(04), 2019/E-Paper
https://orchidee.de/e-paper/taxonomische-mitteilungen/

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''Bulbophyllum thydoii, a new species from Hon Ba Nature Reserve in Vietnam''

4/29/2019

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Ba Vuong Truong, Quang Tam Truong, Jan Ponert & Jaap J. Vermeulen


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Bulbophyllum thydoii     Photos: Jan Ponert

Abstract: Bulbophyllum thydoii is described as a new species of sect. Brachyantha. This species is morphologically close to Bulbophyllum umbellatum and differs by the synanthous inflorescence, petals which proximally do not overlap with the lateral sepals and larger flowers with median sepal 15 - 20 mm long.

Bulbophyllum thydoii resembles Bulb. umbellatum LINDL., Genera and species of Orchidaceous plants: 56, 1830, and Bulb. elatum (HOOK. F.) J. J. SM., Bulletin du Jardin Botanique de Buitenzorg ser. 2, 8: 23, 1912. It differs by the synanthous inflorescences (heteranthous in Bulb. umbellatum and Bulb. elatum), and by the petals which do not touch the lateral sepals proximally (overlapping with the lateral sepals in Bulb. umbellatum and Bulb. elatum). In addition, Bulb. thydoii has larger flowers than Bulb. umbellatum (median sepal 15 – 20 mm long, versus ca. 9 mm long).

It grows on trunk or branches, usually associated with Cleisocentron klossii (RIDL.) GARAY, Campanulorchis longipes (GAGNEP.) J. PONERT, Eria lactiflora AVER. and Mycaranthes floribunda (D. DON) S. C. CHEN et J. J. WOOD. Flowering time March until late of March.


Published in Die Orchidee 5(06), 2019/E-Paper
https://orchidee.de/e-paper/taxonomische-mitteilungen/

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''Four New Combinations of the Genera Bulbophyllum and Dendrobium (Orchidaceae) from the Philippines''

4/26/2019

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Mark Arcebal K. Naive, Michael A. Calaramo & Grecebio Jonathan D. Alejandro

Abstract: Three new combinations under the genus Bulbophyllum and one new combination under the genus Dendrobium are proposed. This work is aimed to solve the ambiguity in the Philippine Orchidaceae. 

Introduction: Recent studies (Hosseini & Dadkhah 2016, Hosseini et al. 2016, Pridgeon et al. 2014, Schuiteman 2011, Xiang et al. 2013) have proposed that Epicrianthes Blume and Euphlebium (Kraenzl.) Brieger should be treated as congeneric with Bulbophyllum Thouars and Dendrobium Sw., respectively. Most names under Epicrianthes and Euphlebium were transferred already to Bulbophyllum and Dendrobium. However, Epicrianthes charishampeliae Cabactulan, M.Leon, Cootes & R.B.Pimentel (Bulbophyllum charishampeliae (Cabactulan, M.Leon, Cootes & R.B.Pimentel) Naive & Alejandro, comb. nov.), Epicrianthes jimcootesii Cabactulan, M.Leon & R.B.Pimentel (Bulbophyllum jimcootesii (Cabactulan, M.Leon & R.B.Pimentel) Naive & Alejandro, comb. nov.), Epicrianthes neilkonradii Cabactulan, Cootes (Bulbophyllum neilkonradii (Cabactulan, Cootes, M.Leon & R.B.Pimentel) Naive & Alejandro, comb. nov), M.Leon & R.B.Pimentel and Euphlebium elineae Calaramo, Naive, Cootes, H.Nuytemans & J.C.Martyr have not yet been formally transferred. Here we propose the combination of these four species under the genera Bulbophyllum and Dendrobium.

Published in LANKESTERIANA 19(1): 21—22. (2019)
http://www.lankesteriana.org
​doi: http://dx.doi.org/10.15517/lank.v19i1.37029
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''Zwei neue Farbformen von Bulbophyllum retusiusculum in Vietnam gefunden''

3/31/2019

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Nguyen Hoang Tuan, Olaf Gruß, Dang Huyen Lee & Van Canh Nguyen


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Bulbophyllum retusiusculum     Photo: Van Canh Nguyen
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Bulbophyllum retusiusculum f. flavum     Photo: Nguyen Hoang Tuan
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Bulbophyllum retusiusculum f. brunneum  Photo: Thanh Luan Nguyen
Abstract: Two new colorforms of Bulbophyllum retusiusculum RCHB. F. 1869 were found in Vietnam. The yellow colorform without any red or pink coloration is described as Bulbophyllum retusiusculum f. flavum, the dark brown colorform as Bulbophyllum retusiusculum f. brunneum.

​Bulbophyllum retusiusculum f. flavum is similar to the typical forma Bulbophyllum retusiusculum RCHB. F., Gardeners' Chronicle 1869: 1182, 1869, but the new forma differs by the color. The sepals, petals and lip are yellow without any red coloration.

Bulbophyllum retusiusculum f. brunneum is similar to the typical forma Bulbophyllum retusiusculum RCHB. F., Gardeners' Chronicle 1869: 1182, 1869, but the new forma differs by the color. The sepals, petals and lip are dark brown.

Published in Die Orchidee 5(02), 2019/E-Paper
https://orchidee.de/e-paper/taxonomische-mitteilungen/

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''A new species of Bulbophyllum''

3/31/2019

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Rudolf Jenny


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Bulbophyllum freitagii    Photo: R. Amsler
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Bulbophyllum diplohelix & B. freitagii; compairison  Photos: R. Amsler
Abstract: Rudolf Jenny describes and illustrates Bulbophyllum freitagii, a new species from New Guinea.
The Author saw this species recently in the orchid collection of Swiss expert grower Roland Amsler, who specializes in Bulbophyllum.

Bulbophyllum freitagii belogns to the recently described section Hoplandra and is closely allied with Bulbophyllum diplohelix. Its lateral sepals are much shorter than B. diplohelix and do not spiral around each other; the lip is about twice the size with a lumpy surface. The hairs are much longer, and the ovary and pedicel are shorter.
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It is so far only known from the type locality in West Papua where it grows in evergreen  forest.
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Bulbophyllum freitagii is named after Walter Freitag (16.11.1963 to 7.1.2018), a passionate Swiss gardener, friend and travel companion of Roland Amsler.

Published in The Orchid Review, March 2019: 33 - 35
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''A New Record of Bulbophyllum Section Aeschynanthoides from Vietnam''

2/13/2019

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Bulbophyllum hainanense     Photo: Truong Ba Vuong
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Bulbophyllum hymenanthum     Photo: Nguyen Van Canh
Vuong Ba Truong, Jaap J. Vermeulen & Tam Quang Truong

Abstract: Bulbophyllum hainanense is an addition to the Flora of Vietnam. Previously, Vietnamese material of this species was listed as Bulbophyllum hymenanthum, a similar-looking species. This paper provides a description and illustration of the Vietnamese material of B. hainanense.

Taxonomic Notes: Within section Aeschynanthoides, it shares the presence of two ridges on the adaxial side of the lip with B. drymoglossum Maximovich (1887), but differs by the tapering, acute lip apex. It differs from B. hymenanthum (the other species of section Aeschynanthoides native to Vietnam, Fig. 2) by the minute, triangular tooth along the lower edge of the stelidia; in B. hymenanthum a conspicuous, rounded wing is present. 

Published in LANKESTERIANA 19(1): 1–4. (2019)
http://www.lankesteriana.org
DOI: http://dx.doi.org/10.15517/lank.v19i1.36164 
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