anthera postice hemisphaerica, antice in appendicem tri- 
angularem obtusam eroso-ciliatam producta; pollinia 2, 
ellipsoidea, stipitibus duobus brevibus paulo supra me- 
dium viscidiorum exorientibus, viscidiis duobus distinctis 
elliptico-ligulatis, stipitibus multo longioribus ; rostellum 
utroque productum, viscidiis amotis utroque trifurcatum, 
sursum lobis lateralibus quam intermedio satis longiori- 
bus, deorsum lobis lateralibus triangulari-dentatis lobo 
intermedio fere subulato longiore ; fovea stigmatica quad- 
rata vel fere orbicularis. 
Species unica: 7". viridifiorus Summerh. 
This plant, which looks rather like an Angraecopsis or 
small Angraecum, is chiefly characterised by the remark- 
able structure of the rostellum. This is attached to the 
apex of the column and is produced both upwards and 
downwards from the point of attachment to form a 
roughly ovate shield-like plate. On removal of the two 
elongated viscidia the rostellum is left trifureate in both 
directions, the upward prolongations being longer than 
those downwards. The general effect is to produce a 
tridentlike or 3-horned structure in both directions. The 
two vertical erect lateral lobes are somewhat incurved 
and nearly twice as long as the narrower very acute cen- 
tral lobe; on the other hand, the downwardly produced 
middle lobe, which is very similar to the upward one, is 
considerably longer than the quite short lateral lobes. 
Another interesting feature is in the anther which is 
produced in front into a broadly triangular beak which 
is erose-ciliate all around the front margins. 
The genus is perhaps most closely allied to Sphyra- 
rhynchus Mansf. which has a short column with the broad 
rostellum produced both upwards and downwards to 
form a hammer-head like structure. In the latter genus, 
however, there is only a single viscidium and on removal 
of this the rostellum is obtusely bilobed or almost entire. 
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