2la. 
a2. 
25a, 
26a. 
27. 
273. 
28 
28a. 
Column more or less elongate with a distinct foot; clinan- 
drium less conspicuous than the whole columnar struc- 
ture; inflorescence rarely lateral ................. pi 
Lip originating beneath the free apex of the column-foot: 
petals calliferous to carinate ............. Rodrigoa 
Lip originating at adnate apex of column-foot; petals 
neither calliferous nor carinate ......... Pleurothallis 
(Subgen. Specklinia) 
POMMNATE™ (62255. eb kis se eis ah awdy ees bas waa eA Ks 24 
BO COOK D2 inwear es onevaer nda s en uerenees pa| 
Secondary stems elongated, prominently caespitose or 
aggregated; peduncle commonly shorter than leaves 25 
Secondary stems very short, hardly any, on distinct rhi- 
zome; peduncle commonly longer than leaves 
Sipe da Ss ase s mare wae eae ede on baece eae ear Barbosella 
Sepals fleshy, coriaceous, partially united to form a flask- 
shaped base, free above ............... Dresslerella 
Sepals father thin in texture, Fee cocuesasaccas es 26 
Inflorescence sessile; foot of column short, as narrow as 
the column itself; petals with a distinct, broad blade 
eee ee eee eee ee re ee eer ee Restrepiella 
(Restrepiopsis) 
Inflorescence pedunculate; foot of column distinctly 
expanded at base, pedestal-like; petals always linear- 
filiform with a clavate tip ............... Restrepia 
Column short, footless; stigmata 2; lip inconspicuous; 
secondary stems remote on ascending, caulescent rhizome 
(gees Soe Nee Re RES E OR ee Te ee Brachionidium 
(Yolanda) 
Column elongate with distinct foot; stigma 1; lip conspic- 
uous; secondary stems caespitose or approximate or alter- 
nate on decumbent rhizome ............. yuah aes 28 
Pollinia 6; secondary stem very short, distichously alter- 
nating on rhizome .............005. Chamelophyton 
(Garayella) 
Pollinia 8; secondary stem well-developed, elongate 29 
173 
