(257 ) 
Some or all leaflets well developed. 
Lowest leaf-internode 2-6 times as long as bro 
Posterior a little reduced, eae than 
sporocarps., 
Spine- “cells j inconspicuous. 
32. C. cubensis. 
Spine-cells conspicuous. 
33. C. elegans. 
Posterior bracteoles considerably reduced, shorter 
than sporocarps. 
Corticated leaf-internodes 3 or fewe 
34. lane 
Corticated leaf-internodes 4 or m 
lightly incrusted. 
ipulodes at least as long as the basal 
leaf-internode, 
Posterior bracteoles not very short. 
35. C. filicaulis. 
Posterior bracteoles often very short. 
36. C. fertilissim: 
ss pase shorter than the basal leaf- 
internode. 38. C. carmenensis. 
Heavily Cae 
39. C. Hickst 
Lowest leaf-internode only slightly eine than broad. 
Posterior bracteoles only slightly ced ; striae 
on odspore Io or 11. stella 
Posterior bracteoles half length of ee striae 
06 140ri5. 41. C. Sanctae-margaritae 
Posterior Sas much less than half length of 
42. C. foltolosa. 
All ia - aedie nodes greatly reduced. 
Cc. 
3. hattensis. 
Leaflets at the lowest leaf-node ventricose, usually different 
from the others. 
Leaflets at sterile nodes not very short, 0.16 mm. or more, 
44. Cc nae al 
Leaflets at sterile nodes not exceeding 0.1 
Striae upon odspore 8-10. 45. C. in ha 
Striae upon oéspore I2- a. 
46. C. trichacantha. 
Antheridia and odgonia borne at different nodes of the same 
eaves, 
Anterior bracteoles longer than the sporocarps. 
8. C. formosa. 
All bracteoles shorter than the sporocarps. 
Upper whorl of stipulodes 0.56-0.82 mm. long, concealing 
the uncorticated basal leaf-internode. 
49. C. sejuncta, 
