Bulbophyllum retusiusculum
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Orchidaceae
Subfamily:	Epidendroideae
Genus:	Bulbophyllum
Species:	B. retusiusculum
Binomial name
Bulbophyllum retusiusculum Rchb.f.
Synonyms
Cirrhopetalum retusiusculum (Rchb.f.) Hook.f. (1890 Phyllorkis retusiuscula (Rchb.f.) Kuntze 1891 Bulbophyllum flavisepalum Hayata 1912 Bulbophyllum langbianense Seidenf. & Smitinand 1965 Bulbophyllum micholitzii (Rolfe) J.J.Sm. 1912 Bulbophyllum oreogenes (W.W.Sm.) Seidenf. 1973 publ. 1974 Bulbophyllum retusiusculum f. brunneum N.H.Tuan & O.Gruss 2019 Bulbophyllum retusiusculum f. flavum N.H.Tuan, O.Gruss & D.H.Le 2019 Bulbophyllum retusiusculum var. oreogenes (W.W.Sm.) Z.H.Tsi 1995 Cirrhopetalum flavisepalum (Hayata) Hayata 1917 Cirrhopetalum micholitzii Rolfe 1912 Cirrhopetalum oreogenes W.W.Sm. 1921 Cirrhopetalum touranense Gagnep. 1931 Cirrhopetalum touranense var. breviflorum Gagnep. 1931

Bulbophyllum retusiusculum is a species of orchid in the genus Bulbophyllum. ^[1]

Description

Bulbophyllum retusiusculum is a warm-growing orchid has lithophytic or epiphytic habits, featuring a creeping branched rhizome with 1-3 cm separations between each falcate pseudobulb. The pseudobulbs are slender, suberect to oblique, and narrowly ovate-conical, each bearing a single apical, leathery, linear-oblong leaf that is erect to suberect and semi-flexible to rigid and 1.6-8 cm long. It flowers in summer and autumn with a 14 cm long basal inflorescence, which can be ascending or descending, bearing 6 to 12 umbel-shaped flowers with tubular, narrowly lanceolate bracts. ^[2]

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  Close up of labellum
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  Flowers

Distribution

Bulbophyllum retusiusculum is found in lowland evergreen forests and primary montane forests at elevations of 500 to 3000 meters in China (Gansu, Guizhou, Hainan, Hubei, Hunan, Sichuan, Xizang, Yunnan), Nepal, India (Assam and Sikkim), Bhutan, Burma, Thailand, Malaysia, Laos, Vietnam, and Taiwan. ^[2]

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  Plant growing epiphytically
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Taxonomy

Heinrich Gustav Reichenbach described Bulbophyllum retusiusculum in The Gardeners' Chronicle & Agricultural Gazette in 1869.

References

• The Bulbophyllum-Checklist
• The Internet Orchid Species Photo Encyclopedia

External links

• Media related to Bulbophyllum retusiusculum at Wikimedia Commons
• Data related to Bulbophyllum retusiusculum at Wikispecies