164 MR. H. BOLUS’S CONTRIBUTIONS 
datum, euspide intermedio acuminatissimo, lateralibus 2-3plo 
longiore, calcare dependente filiformi, laminam 2plo excedenti. 
(Ex exempll. exsicc. 2 a Mc Ken lectis.) 
Hab. In Natal, McKen, 14; Cooper, 1898; Sanderson. 
Habit that of Angrecum bicaudatum. Readily distinguished 
from its congeners by the lip. Sanderson’s plant has much 
Fig. 1. 
Angrecum tricuspe, Bolus, 
l. Flower, front view. 2. Lip. 3. Pollinia, McKen’s plant. 
4. Pollinia, Cooper's plant ? 
smaller flowers than McKen’s or Cooper’s, but otherwise agrees. 
Bentham and Hooker (Gen. Plant. iii. 583, 584) make the distinc- 
tion between Angrecum and Mystacidium to consist in the flat or 
filiform stipites of the pollinarium, also in the smaller flowers of 
the latter. In this species they are neither flat nor filiform, but 
elavate and slightly compressed. The flowers in size are also 
intermediate between the average of the two genera. Beutham 
himself made a rough drawing of the pollinarium on the sheet 
of McKen’s No. 14 in the Kew Herb. and marked it “ Mysta- 
cidium” ; yet I cannot see how it differs from that of others 
included in Angrecum. I have a strong suspicion that Mysta- 
cidium will ultimately have to be merged in Angrecum, but the 
change should be preceded by a knowledge of the greater part of 
the species of each genus in a living state. 
HABENARIA ANGUICEPS, Bolus, n. sp. (Fig. 2.) Herba glabra, 
erecta, 12-18 centim. alta; folia lanceolata, acuminata, nervata, 
erecta, 2-5 centim. longa, superiora minora, sensim in bracteas 
conformes floribus longioribus abeuntia; spica cylindrica, multi- 
flora, floribus squarrosis, diametro 2:5 centim. ; sepala lateralia 
