A. W. Exell and F. A. Mendonca, which has well- 
developed fruits and withered flowers and is apparently 
referable to this species. 
Habenaria sectio Trachypetalae Swmmerhayes 
sect. nov. 
Caulis erectus, foliatus; folia lanceolata vel elliptico- 
lanceolata usque ovata, sursum in bracteas abeuntia;: 
flores mediocres (1.5-8 em. diametro); petala simplicia 
vel usque ad infra medium bifida, dense pilosa, cum 
sepalo intermedio agglutinata; labellum ex ungue satis 
longo trifidum, lobis linearibus intermedio quam laterali- 
bus paulo longiore vel distincte breviore, caleari depen- 
denti ovarium et pedicellum aequante, supra + inflato; 
anthera brevis, crassa, connectivo lato, canalibus satis 
longis, staminodiis parvis; stigmata mediocria, crassius- 
cula, sursum tantum paulo incrassata; rostellum mag- 
num, antheram aequans vel superans, apice saepius = 
truncatum dentatum. 
Species 8 adhuc notae, Africae tropicae indiginae. 
Species typica sectionis :—H. trachypetala Kraenzlin. 
I have created the above new section of Habenaria to 
contain several striking African species which cannot sat- 
isfactorily be placed in any of the sections recognised up 
to now. As the name indicates the striking feature in 
common is the possession of very hairy and often curi- 
ously shaped petals, which may be entire or divided to 
below the middle. Other correlated features are the veg- 
etative characters; the structure of the lip, the anther, 
the stigmata and the rostellum middle-lobe. Until I have 
carried my researches on the genus Habenaria a good 
deal further, I am not prepared to make any comments 
on the relationship of the new section to any others at 
present recognised. The three species, one of which (HZ. 
pubipetala Summerhayes) is described below for the first 
time, may be distinguished as follows: 
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