Ucanpa: Karamoja, Napak, 2250 m. alt., in ravine forest, occa- 
sional orchid with masses of small white flowers, May 1940, Thomas 
3645, 
Another member of the group with elongated stems 
and Rhipidoglossum type of column bearing separate vis- 
cidia on each side of a fleshy often more or less clavate 
obtuse rostellum middle-lobe. The present species is 
characterised by the short few-flowered inflorescences 
and the relatively long slender spur. 
Diaphananthe ugandensis (Rendle) Summerhayes 
comb. nov. 
Mystacidium ugandense Rendle in Journ. Linn. Soc. 
London Bot. 87 (1905) 220. 
This species is also omitted from Schlechter’s mono- 
graph of the Angraecoid Orchids, but an examination of 
the type specimen shows it to be a typical member of 
Diaphananthe with a well-developed tooth in the mouth 
of the spur. Vegetatively the plant resembles Rhipido- 
glossum xanthopollinium (Reichb.f.) Schltr. but may be 
readily distinguished by the floral characters. Material 
collected in Uganda by Mr. W. J. Eggeling and agree- 
ing well in floral structure and other respects with the 
type, (Bagshawe 425), has larger and more laxly flowered 
inflorescences. The column is of the Rhipidoglossum type 
found in other members of Diaphananthe (D. Stolzii 
Schltr., for example), there being two separate vicidias 
and stipites and a trifid rostellum with a fleshy central 
lobe. From D. pulchella Summerh., which is probably 
its nearest ally, the species differs in the narrower leaves, 
slightly smaller flowers and differently shaped lip. This 
is relatively broader, and lunately truncate at the apex 
with a distinct central apiculus. 
Sarcorhynchus bilobatus Swmmerhayes sp. nov. ; 
a S. polyantho (Kraenzl.) Schltr. planta majore, foliis 
[111 ] 
