BOTANICAL MUSEUM LEAFLETS 
HARVARD UNIVERSITY 
Voi. 13, No. 6 
CamBripGe, Massacuusetts, NovEMBER 24, 1948 
’ ’ 
NOTES ON ORCHIDS OF THE AMERICAN 
TROPICS 
BY 
CHARLES SCHWEINFURTH 
NEW CONCEPTS OF THE PANAMANIAN ORCHID FLORA 
THE following new concepts became apparent in the 
course of the critical work undertaken by Mr. Paul H. 
Allen on the orchid flora of Panama. 
Oakes-Amesia C. Schweinfurth & P. H. Allen gen. 
nov. 
Divisio: Acrotonae. Tribus: Kerosphaereae. Series: 
Pleuranthae. Subtribus: Ornithocephaleae. Flores par- 
vi. Perianthii partes liberae, late patentes. Sepala ovata 
vel oblongo-ovata, mucronata. Petala sepalis majora, 
late cuneata, apice truncata vel retusa. Labellum medio 
profunde trilobatum, per medium longitudinaliter tubulo 
percursum. Columna brevis, supra in processum rostel- 
larem superne dilatatum et trilobulatum extensa. An- 
thera perlonga, sigmoidea, supra abrupte semigloboso- 
concava. Pollinia quattuor, parva, stipiti perlongo affixa. 
Herba pusilla, epiphytica, Ornithocephalo valde affinis. 
Caulis perbrevis, foliorum circulo omnino obtectus. Folia 
equitantia, late patentia, infra vaginis imbricantibus artic- 
ulata. Inflorescentiae racemosae, axillares, pluriflorae, 
folia superantes. 
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