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

4/15/2019

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

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Bulbophyllum physocoryphum     Photo: M. D. Le
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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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''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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''Some amazing Miniature Bulbophyllum Species from the Philippines''

12/1/2018

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Jim Cootes & Dr. Wolfgang Rysy

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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.
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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.
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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.
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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.
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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.
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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
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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.
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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.
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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.
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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.
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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.
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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.
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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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''Bulbophyllum isabellinum Cavestro et J. Champion – a New Species of Bulbophyllum (Orchidaceae, Dendrobieae) from Central Kalimantan in Indonesia''

6/30/2018

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Dr. William Cavestro & Jeffrey Champion

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Bulbophyllum isabellinum    Photos: J. Champion
Abstract: This article presents a new species of Bulbophyllum named Bulbophyllum isabellinum and native of Central Kalimantan in Indonesia. This species is close to Bulbophyllum gusdorfii J. J. Sm. but differs in shorter, sulcate, emarginate (neither acute, nor acuminate), yellow orange and tawny lateral sepals (not flat), in petals triangular and shorter, neither fimbriate nor papillose at apex, and also in a tongue-shaped (not oblong-ovate) labellum with three ridges at base, and in the middle with a median very short and inconspicuous ridge.
Bulbophyllum isabellinum Cavestro et J. Champion spec. nov. is simillar to Bulbophyllum gusdorfii J. J. Sm. but differs in close and shorter ovoid pseudobulbs; shorter and elliptic-ovate leaves; shorter and sulcate lateral sepals (not flat), emarginated (neither acute, nor acuminate), yellow orange and tawny, triangular and shorter petals, neither fimbriate nor papillose at apex, a labellum tongue-shaped (not oblong-ovate), shorter with three ridges at base and in the middle, a median ridge very short and inconspicuous.

Published in Die Orchidee 4(09), 2018/E-Paper
​https://orchidee.de/e-paper/taxonomische-mitteilungen/

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''Two new Bulbophyllum Species from Peninsular Malaysia''

3/31/2018

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Peter O'Byrne & Ong Poh Teck

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Bulbophyllum jayjayveeanum    Photo: P. T. Ong
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Bulbophyllum nazrii    Photo: P. T. Ong
Abstract: Two new Bulbophyllum species from Peninsular Malaysia are dedscribed and  llustrated: Bulbophyllum jayjayveeanum (sect. Rhinanthera) and Bulbophyllum nazrii (sect. Monanthaparva).
Bulbophyllum jayjayveeanum  is unique in the section in the ovary being much longer than the pedicel, and the lateral sepal margins being erose near apex. It also differs from Bulbophyllum turpe J. J. VERM. et P. O’BYRNE in having a very crowded rachis, lateral sepals less than 7 mm long, a column with a small rounded tooth on each margin, and a column-foot with a rounded apex that lacks a raised tooth.
Bulbophyllum nazrii differs from Bulbophyllum comberi J. J. VERM. in having a retrorse uncinate tooth on the column wing, a stigma with a protruding basal margin, a lip that lacks cilia and has irregularly pectinate margins, and broad-lanceolate petals.

Published in Die Orchidee 4(05), 2018/E-Paper
https://orchidee.de/e-paper/taxonomische-mitteilungen/

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