Bulbophyllum regnellii Rchb. f. 1849 SECTION Napellii Rchb.f 1861
Photos by © Pieter C. Brouwer and his Nature Photo Website
Plant in situ Minas Gerais Brazil
Photo by © Ismael Nilton Vischi
Photo courtesy of Dalton Holland Baptista
LATE 
EARLY
Common Name Regnell's Bulbophyllum [Swedish Orchid Collector in Brazil 1800's]
Flower Size 1/4" [.65 cm]
Found in southeastern Brazil on moss covered scrub on wind-blown, exposed mountain ridges at elevations around 1500 meters as a mini-miniature sized, cool growing epiphyte with a tough, woody rhizome giving rise to clustered, squat, almost round pseudobulbs carrying a single, oblong, deeply keeled, dark green, stiff leaf that blooms in the late summer and early fall on a stiff, basal, ascending then abruptly descending, 10" [25 cm] long overall, rachis at a right angle to the peduncle, to 4.4" [11 cm] long, successively 1 to 2, several flowered inflorescence carrying alternate, small, bilaterally compressed flowers.
This species is very similar to B. napelli, however, it is distinguished by having petals with an acute apex and by presenting small orbicular projections at the base of the lip, which are folded over the ventral surface of the lip and have crenate margins.
Synonyms Bulbophyllum napelloides Kraenzl. 1911; Bulbophyllum sturmhoefelii Hoehne 1950; Didactyle regnellii Barb.Rodr 1882
References W3 Tropicos, Kew Monocot list , IPNI ; Xenia Orchidaceae vol 2 Rchb.f 1868 drawing; Orchidaceae Brasilenses Band 1 Pabst & Dungs 1975 drawing fide; Orchids of the High Mountain Atlantic Rainforest in SE Brazil Warren & Miller 1994; Orchidaceae Brasilense Pabst & Dungsa 1976; AOS Bulletin Vol 73 No 9 2004 photo ok; The Organ Mountain Range, Its History and its orchids Miller, Warren, Miller and Seehauer 2008; Rodriguésia 63 (4) • Dec Mancinelli and Camargo Smidt 2012 drawing fide; AOS Bulletin Vol 86 #6 2017 photo fide;
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