IOSPE PHOTOS

Bulbophyllum trigonopus (Rchb.f.) P.T.Ong 2017 SECTION Cirrhopetalum [Lindl.] Rchb.f 1861

What has been known as B trigonopus

Flower Closeup

Flower closeup

What has been known as B asperulum

What has been known as B pulchellum

Photo by © J B Comber and The Swiss Orchid Foundation at the Jany Renz Herbaria Website

Inflorescence of what has been known as B puchellum

Photo by Kharamhyd and Orchids On Line Australia

Common Name The Triangular Column Foot Bulbophyllum

Found in Thailand, penninsular Malaysia and Borneo in tall, low and open forests at elevations of sea level to 100 meters as a miniature to small sized, hot growing epiphyte with .12 to 1" [.3 to 2.5 cm] between each distinct, ovoid to ellipsoid, hardly angular to obtusely 4 to 5 angled pseudobulbs carrying a single, apical, erect, ovate, obovate to elliptic, obtuse, petiolate base leaf that blooms on an obliquely erect to patent, peduncle with about 4 scales, 1.8 to 2.6" [4.5 to 6.5 cm] long, rachis porrect, .04 to .08" [1 to 2 mm] long, sumbumbellate, racemose, 5 to 10 flowered inflorescence.

CAUTION!!!!!! This species has been wrongly cited as Bulbophyllum abbreviatum ex Rchb.f Seidenfadden 1973 and needs to be renamed as a different Bulbophyllum as the name had already been used 50 years earlier, I here propose B trigonopus as Reichenbach described it at the same time as Cirrhopetalum trigonopus and then found that they were the same plant and it has no complications within the Bulbophyllum. {Added 2018} When I wrote the previous CAUTION online publication were not accepted and so Mr Ong got the credit in 2017.

Synonyms Bulbophyllum abbreviatum ex Rchb.f Seidenfadden 1973; Bulbophyllum asperulum J.J.Sm. 1909; Bulbophyllum pulchellum Ridl. 1907; Bulbophyllum pulchellum var. brachysepalum Ridl. 1907; Bulbophyllum pulchellum var. purpureum Ridl. 1907; Cirrhopetalum abbreviatum Rchb.f. 1881; Cirrhopetalum asperulum (J.J.Sm.) Garay, Hamer & Siegerist 1994; Cirrhopetalum concinnum Hook.f. 1890; *Cirrhopetalum trigonopus Rchb. f. 1881; Phyllorkis ridleyana (Hook.f.) Kuntze 1891

References W3 Tropicos, Kew Monocot list , IPNI ; Icones Plantarum Vol 21 Hooker 1891 as Cirrhopetalum concinnum drawing fide; Notes on Cirrhopetalum Seidenfadden 1973 as B pulchellum drawing fide; Notes on Cirrhopetalum Seidenfaden 1973/87 as B abbreviatum; Notes on Cirrhopetalum Seidenfadden 1973 as B asperulum drawing ok; Orchid Genera in Thailand Vol VIII Bulbophyllum Thou. Seidenfaden 1979 as B pulchellum drawing fide; The Orchids of Penninsular Malaysia and Singapore Seidenfaden & Wood 1992 as B pulchellum drawing fide; Thai Orchid Species Rakpaibulsombat 1992 as B pulchellum photo fide; A Checklist of the Orchids of Borneo Wood & Cribb 1994 as B asperulum ; Bulbophyllum and Their Allies Seigerist 2001 as B asperulum; The Orchids of Bhutan Pearce & Cribb 2002 as B pulchellum drawing fide; AOS Bulletin Vol 81 #7 2012 as B pulchellumphoto fide; Bulbophyllum of Borneo J J Verm, P O'Byrne and Lamb 2015 as B abbreviatum photos/drawing fide; AOS Bulletin Vol 85 #7 2016 as B pulchellum photo fide; AOS Bulletin Vol 89 #2 2020 as B pulchellum photo fide

----------------------------------------------------------------------------------------------------------