Category: New Guinea

''Bulbophyllum championii, a new species''

6/30/2019

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Rudolf Jenny

Bulbophyllum championii Photo: R. Amsler

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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''A new species of Bulbophyllum''

3/31/2019

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Rudolf Jenny

Bulbophyllum freitagii Photo: R. Amsler

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.

It is so far only known from the type locality in West Papua where it grows in evergreen forest.

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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''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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''Bulbophyllum irianae and B. adolinae (Orchidaceae: Dendrobiinae), two new species of sections Hoplandra and Peltopus from Indonesian New Guinea''

10/5/2018

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André Schuiteman, Ed De Vogel, Charlie D. Heatubun, Jimmy F. Wanma, Filep Mambor, Daawia Suhartawan & Eline Hoogendijk

Bulbophyllum irianae Photo: Daawia Suhartawan

Bulbophyllum irianae Photo: Eline Hoogendijk

Bulbophyllum adolinae Photos: André Schuiteman

Abstract: Two new species of Bulbophyllum are described here as Bulbophyllum irianae (sect. Hoplandra) and Bulbophyllum adolinae (sect. Peltopus)

Bulbophyllum irianae ist most similar to Bulbophyllum obovatifolium J.J.Sm., but differs in the apex of the median sepal which is a long, solid, terete, subulate awl c. 0.8 cm long that is adaxially in the lower half flat, has no crest or keel, and narrows continuously and gradually into very thin, narrowly acute tip (versus median sepal keeled, acute, concave, the top half in the middle conduplicate, laterally compressed); the lip from above slender narrowly triangular with a narrowly acute apex and a smooth upper surface without ornamentation (versus lip from above tongue-shaped with an obtuse apex and a channeled upper side with two ribs and a low small rib in the middle); lateral sepals c. 8.2 cm long and 6 times twisted around each-other (versus lateral sepals c 4.5 cm long and not twisted).

Bulbophyllum harposepalum Schltr. is often treated as a synonym of B. obovatifolium. It differs from B. irianae in the much smaller, not twisted sepals, the broader and obtuse lip with a median depression and obtuse apex, and in the median sepal which is towards the top conduplicate-compressed and keel-like, rather blunt, not gradually tapering.

It grows as a crown epiphyte in slightly disturbed rain forest with trees up to c. 45 m tall, with much undergrowth. Terrain undulating to steep. Elevation c. 300 m. Flowering in the wild in February.

Bulbophyllum adolinae differs from B. octarrhenipetalum J.J.Sm. in the terminal callus of the column-foot, which is bilobed, with one lobe pointing upwards and one, almost equally large, lobe pointing downwards (versus only one upwards-pointing callus in B. octarrhenipetalum); rostellum minute, erect (versus rostellum distinctly protruding, porrect); petals only 0.6 mm wide (versus petals 0.9 - 2.5 mm wide), sepals with glabrous, not ciliate, margins, and the bright yellow lip (versus lip white or purple).

A thorough revision of Bulbophyllum sect. Peltopus was published by J.J. Vermeulen (1993). Among the 32 species recognized by him, only B. octarrhenipetalum J.J.Sm. is similar enough that a careful comparison is required to tell them apart. Vermeulen's view, B. octarrhenipetalum is an extraordinarily variable species. Field studies are needed in order to establish if the variation is truly infraspecific and not caused by hybridization. Bulbophyllum adolinae was discovered in 2014 during a joint field trip in the Arfak Mountains, West Papua Province, Indonesia, carried out by staff of the Royal Botanic Gardens, Kew (André Schuiteman and Marie Briggs) and the Universitas of Papua.

It is a Epiphyte on moss-covered tree trunks in montane forest. Elevation 1970 m. Flowering observed in July.

Published in OrchideenJournal, Vol. 6-5: 3 - 8
http://www.orchideen-journal.de/descriptions.htm

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''New Taxa in Bulbophyllum (Orchidaceae: Epidendroideae: Malaxideae) from New Guinea, Lifting a Mega-Genus over the 2000-Species Mark''

1/2/2018

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Jaap J. Vermeulen, André Schuiteman & Eduard F. de Vogel

Bulbophyllum katjae Photo: J.J. Vermeulen

Bulbophyllum najae Photo: P. Jongejan

Bulbophyllum palleucum Photo: E.F. de Vogel

Bulbophyllum stolleanum Photo: P. Jongejan

Bulbophyllum yumtei Photo: A. Schuiteman

Bulbophyllum gunteri Photo: A. Sieder

Bulbophyllum brachygnomon Photo: J. Meijvogel

Bulbophyllum campylopetalum Photo: P. Jongejan

Bulbophyllum schizodon Photo: A. Schuiteman

Summary: The new section Lasiogaster is proposed to accommodate two species of Bulbophyllum from Sulawesi and New Guinea. Fifteen new species of Bulbophyllum of sections Brachypus, Lasiogaster, Papulipetalum and Peltopus from New Guinea are described and illustrated. According to our list of accepted species this brings the total number in the genus to 2008. Bulbophyllum stolleanum is neotypified.

Bulbophyllum chionanthum sp. nov. (sect. Brachypus) shares with B. tetratropis the narrow sepals (ratio length/width of lateral sepals 2.5 or more), combined with an ellipticto obovate median sepal. It differs from B. tetratropis by the smaller lip (2.8 - 3.0 mm long, versus 5.0 - 5.5 mm long), and by the glabrous (not ciliolate) lip margins.

Bulbophyllum katjae sp. nov. (sect. Brachypus) is most similar to B. cerinum Schltr.; diagnostic is the absence of a distinct ridge along each side of the column that follows the lower margin of the petals. Additional differences are the length of the petals (3.9 - 5.5 mm long versus 5.5 - 7.5 mm in B. cerinum) and the length of the lip (3.9 - 4.8 mm versus 4.8 - 7.2 mm in B. cerinum). The sepals are less distinctly thickened towards the apex, and more sharply acute in B. katjae.
Plants with short and wide lateral sepals may resemble B. yumtei, below, which differs by the obovate-oblong (versus triangular) petals. The lip structure of B. yumtei is also different, see notes under that species.

Bulbophyllum najae sp. nov. (sect. Brachypus) shares the basally adherent or adnate, glossy sepals with B. maxillarioides Schltr., and B. rhomboglossum Schltr., both from sect. Brachypus. It differs from the first by its glabrous (not ciliolate) lip margins, from the second by the wider sepals (median sepal 8.5 - 11.6 mm wiede, versus 5.0 - 6.0 mm wide; lateral sepals 7.0 - 11.0 mm wiede, versus 5.2 - 6.2 mm wide).

Within section Brachypus, Bulbophyllum palleucum sp. nov. shares with B. galactanthum Schltr., B. versteegii J.J.Sm., and B. stolleanum Schltr. (see below), the set: narrow sepals (ratio length/width of lateral sepals 2.5 or more), median sepal ovate to triangular, and lateral sepals narrow (3 - 5.8 mm wiede). B. palleucum differs from all three by the wide petals (1.8 - 2 mm wide, versus 0.5 - 0.9 mm wiede).

Within section Brachypus, Bulbophyllum schistocodon sp. nov. is characterized by the adherence of the median sepal to the laterals along approximately one third of its length. Only B. ustusfortiter J.J.Verm., of the same section, has similar flowers, but here the median sepal adheres to the laterals almost from base to apex, leaving only a small lumen at the apex of the flower.

We cannot trace any extant type material of Bulbophyllum stolleanum Schltr. (sect. Brachypus), for which reason we indicate and illustrate a neotype.

Winthin section Brachypus, Bulbophyllum tetratropis sp. nov. is uniquely characterized by the presence of four ridges on the adaxial side of the lip. It shares with B. chionanthum, above, the narrow sepals (ratio length/width of lateral sepals 2.5 or more), combined with an elliptic to obovate median sepal; the differences between the two are given under the latter.

Bulbophyllum yumtei sp. nov. is uniquely characterized within section Brachypus by the high ridges on the adaxial side of the lip. As a result, the true lip margins run over the abaxial face of the lip, of which the true abaxial side is only the area in between the lip margins. Next to this, B. yumtei fits in a small group of species within the section with free sepals and the index of the lateral sepals 2.5 or less. Most similar in this group is B. katjae, above, which has triangular, rather than obovate-oblong petals. B. galactanthum Schltr., and B. hans-meyeri J.J.Wood are the other two species in this group; they have shorter sepals (the median 7 - 13 mm long). B. maxillarioides Schltr. is superficially similar to B. yumtei, but has partially connate lateral sepals and a lip lacking high ridges.

Bulbophyllum gunteri sp. nov. (sect. Brachypus?) is most similar to B. phaeoglossum Schltr. and B. pterodon, below; it differs from the first by having ciliolate lip margins. The differences between B. gunteri and B. pterodon are given below.

Bulbophyllum pterodon sp. nov. (sect. Brachypus?) is most similar to B. phaeoglossum Schltr. and B. gunteri, above; it differs from both by having petals more than half as long as the median sepal, and by the presence of a distinct, obtuse wing along the upper margins of the stelidia. It also differs from B. phaeoglossum by its ciliolate lip margin.

Bulbophyllum trutiniferum sp. nov. (sect. Brachypus?) is similar to B. gunteri, and B. pterodon, above, and B. phaeoglossum Schltr.; it differs from all three by the partially adherent sepals and the three-lobed lip.

Bulbophyllum brachygnomon sp. nov. (sect. Brachypus?) is similar to B. variculosum J.J.Verm.; differs by deltoid stelidia, with a rounded to minutely acuminate apex (versus stelidia narrowly triangular, long acuminate or spathulate at the apex).

Section Lasiogaster sect. nov. is most similar to section Monanthaparva Ridl. but differs by the coarsely papillose adaxial lip surface, with papillae arranged in transverse rows.

Bulbophyllum lissogaster sp. nov. differs from B. lasiogaster J.J.Verm. & P.O'Byrne, from Sulawesi, by its glabrous petals, and the glabrous face of the column.
According to the label (of Woods 365?), the pseudobulbs are growing in 'clustered lines'. The available fragment of the plant has a few root remants growing backwards along the rhizome, but the mode of growing, with creeping or patent rhizomes, cannot be determined with certainty.

Bulbophyllum campylopetalum sp. nov. (sect. Papulipetalum) shares with B. brachychilum Schltr. the partly papillose ridges on the adaxial side of the lip. B. campylopetalum differs by its downwards-falcate, elliptic to obovate petals (versus straight, ovate to triangular petals), as well as by having more prostrate, more distinctly angular pseudobulbs.

Bulbophyllum schizodon sp. nov. (sect. Papulipetalum) is most similar to B. arsoanum J.J.Sm., with which it shares the presence of a tooth below the base of the stigma. In B. schizodon this tooth is deeply divided itno two (in B. arsoanum in consists of a single, transverse ridge). Next to this, B. schizodon has larger petals (6.0 - 6.6 mm long, versus 3.0 - 4.0 mm long), and a lip which is widest in the apical half (versus lip widest in the basal half).

In the revision of section Peltopus (Vermeulen, 1993: 145), Bulbophyllum hapalocodon sp. nov. keys out next to B. scutiferum J.J.Verm. (l.c.: 173); it differs from B. scutiferum by its much longer sepals (median sepal c. 24 mm long, versus 4.5 - 11.5 mm long), which are acuminate-caudate (versus acute), and by the distinctly protruding lower margin of the stigma.

Published in Malesian Orchid Journal Vol. 21 (2018): 31 - 68

https://nhpborneo.com/books/plants/moj/

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''Bulbophyllum championii, a new species''

Rudolf Jenny

''A new species of Bulbophyllum''

Rudolf Jenny

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

Jim Cootes & Dr. Wolfgang Rysy

''Bulbophyllum irianae and B. adolinae (Orchidaceae: Dendrobiinae), two new species of sections Hoplandra and Peltopus from Indonesian New Guinea''

André Schuiteman, Ed De Vogel, Charlie D. Heatubun, Jimmy F. Wanma, Filep Mambor, Daawia Suhartawan & Eline Hoogendijk

Bulbophyllum adolinae Photos: André Schuiteman

Published in OrchideenJournal, Vol. 6-5: 3 - 8http://www.orchideen-journal.de/descriptions.htm

''New Taxa in Bulbophyllum (Orchidaceae: Epidendroideae: Malaxideae) from New Guinea, Lifting a Mega-Genus over the 2000-Species Mark''

Jaap J. Vermeulen, André Schuiteman & Eduard F. de Vogel

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Published in OrchideenJournal, Vol. 6-5: 3 - 8
http://www.orchideen-journal.de/descriptions.htm