Porpax elwesii (Rchb.f.) Rolfe 1908

Plant and Flowers

Plant on Rock Photo courtesy of André Schuiteman, Dr. E.F. de Vogel and Jaap Vermeulenand Their Netherlands National Herbarium Website

Part shade Warm Cool EARLYSummer

Common Name Elwes's Bulbophyllum [British Orchid Collector in Thailand 1900's]

Flower Size 1/2" [1.2 cm]

Found in Assam, Bhutan, Thailand, Malaysia, Laos and Vietnam on open vertical cliffs at elevations of 700 to 1600 meters as a miniature sized, warm to cool growing epiphyte or lithophyte with densely clustered, flattened, globose-turbinate to discoid-lenticular, Hershey-kiss-like, green with brown veins pseudobulbs enveloped basally by a fibrous membrane carrying, 2, apical, elliptic oblong, mucronate, grooved, shortly petiolate leaves that appear after flowering and blooms in the early summer on a terminal, short to 2" [2.5 to 5 cm], one flowered inflorescence that arises from the apex of the pseudobulb.

These photos match the drawing by Seidenfaden & Smitinand of P nummularia with a very short inflorescence with a bract covering the lower half of the flower much better than the drawing of P elwesii by Seidenfaden & Smitinand that has a 3/4" long inflorescence with encompassing floral bract, hard to see how both are one species.

Synonyms *Eria elwesii Rchb.f. 1883; Eria nummularia Kraenzl. 1901; Eria semiconnata Kraenzl. 1901; Porpax meirax var. elwesii (Rchb.f.) R.C.Srivast. 1995; Porpax nummularia (Kraenzl.) Smitinand 1958; Porpax semiconnata (Kraenzl.) Smitinand 1958

References W3 Tropicos, Kew Monocot list , IPNI ; The Orchids of Thailand Seidenfaden & Smitinand 1959 drawing wrong has inflorescence that is at least 3/4" and no basal encompassing floral bract; The Orchids of Thailand Seidenfaden & Smitinand 1959 as P semiconnata; The Orchids of Thailand Seidenfaden & Smitinand 1959 as P nummularia drawing; Contribution to a Revision of the Orchid Flora of Cambodia, Laos and Vietnam Seidenfaden 1975 as Eria nummularia; Contribution to a Revision of the Orchid Flora of Cambodia, Laos and Vietnam Seidenfaden 1975 as Eria semiconnataThe Orchids of Penninsular Malaysia and Singapore Woods & Seidenfaden 1992 drawing ok; Bulbophyllum and Their Allies Siegerist 2001; A Field Guide to the Wild Orchids of Thailand 2001 photo ok; Orchids of Bhutan Pearce & Cribb 2002; A field Guide to the Wild Orchids of Thailand Vaddhanaphuti 2005 photo ok; 100 Sikkim Himalayan Orchids Pradhan 2005 photo fide; The Orchids of India A Glimpse Misra 2007 drawing fide;

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

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