apparently differing in column structure. From Schlecht- 
er’s drawings and my dissections of the type specimen, 
the rostellum does not possess the long decurved and ad- 
pressed basal portion but projects upwards from the front 
apex of the column; in conformity the viscidium is much 
shorter and there is no bend in the stipes. 
Section LLL. DickaNorakenia (Kinet) Summerhayes 
Dicranotaenita Finet in Mém. Soc. Bot. France 9 
(1907) 47, pro genere. 
Flores mediocres; labellum pro rata magnum, + un- 
guiculatum, ovatum, ellipticum, suborbiculare vel subfla- 
bellatum, apice+emarginatum apiculo interjecto, caleari 
longo incurvato; columna dorso alta superne + recurvata, 
antice brevissima facie antica fere horizontali, clinandrio 
dorso valde adscendente; anthera antice longe producta; 
pollinii stipes longus vel perlongus, interdum superne 
bifidus, viscidio parvo vel minuto, saepius angusto; ros- 
tellum decurvatim productum, columnae fere omnino 
adnatum, apice liberum horizontaliter porrectum dis- 
tincte bilobum. 
Species typica sectionis:—M. dahomeensis (Kinet) 
Summerh. | 
A small but very natural group characterised by the 
large lip lamina distinctly narrowed at the base, the long 
more or less incurved spur and the peculiar column struc- 
ture. The column widens rapidly upwards from the base 
so that the back is nearly vertical or sloping steeply up- 
wards while the lower part of the front is nearly horizon- 
tal and much shorter. The androclinium is nearly vertical 
und, with most of the rostellum, is covered by the much 
elongated anther. The rostellum, which extends down 
the front of the column, is adnate for most of its length 
but projects forwards at the apex to form two acute or 
rounded lobes in the mouth of the spur between which 
[ 156 | 
