KEY TO THE SPECIES AND VARIETY 
A, Inflorescence spirally arranged (Subg. Dendrocolla) 
a. Pubescence of the lip confined to a dense mass on either side of 
the apex; disc shallowly concave 
b. Lip transversely rhomboid 
1. comans 
6, Lip broadly subpandurate 
la. var. bicristatum 
a. Pubescence of the lip, when present, not confined to dense 
masses, scattered or the lip glabrous; dise usually deeply con- 
cave or saccate 
c. Leaf-bearing stems 3 cm. or less long; plants appearing 
acaulescent, the leaves approximate 
d, Middle or terminal lobe of the lip pubescent 
e. Lip 5-lobed, the lateral lobes spreading 
4. quinquelobum 
e. Lip 3-lobed, the lateral lobes strongly falcate 
6. sp. 
Nort: The material is inadequate for description 
d. Middle or terminal lobe of the lip glabrous, but some- 
times the calli are not glabrous 
J. Lip entire, i.e. no distinct sinuses between the ter- 
minal and lateral lobes 
g. Lateral calli near the margin of the lip 
9. Vanoverberghii 
g. Lateral calli near the orifice of the sac of the lip 
8. integrum 
J. Lip 3-lobed (or apparently 4-lobed) with a distinct 
sinus between the terminal and lateral lobes 
h. Lateral lobes of the lip about four times larger 
than the mid-lobe 
3. Elmeri 
h. Lateral lobes subequal to or smaller than the 
mid-lobe 
i, Lateral and terminal lobes of the lip subequal 
in size; mid-lobe not retuse 
y. Median callus subcordate; lip cruciform ; 
lateral calli near the margin of the lip 
5. fantasticum 
yj. Median callus not subcordate, small and 
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