116 
64 
P 
10. Segments short, obtuse; veins 3—7 to a side. 
I Einneesobinse.- 4... 65. D. coarctata (Kze.) C. Chr. 
11. Pinne acuminate. 
12. 
Lamina glabrous or hairy on the rachis 
and coste only. 
13. Sori medial. Under surface slightly 
or not glandular .... 64. D. riopardensis Ros. 
13. Sori near the margin. Under sur- 
face-densely glandulose. 
14. Pinnz close; segments entire, the 
basal ones not auricled 
63. D. opposita (Vahl) Urb. 
14. Pinnz distant; segments toothed 
at the apex, the basal ones with 
an interne auricle 
59. D. consanguinea var. aequalis C. Chr. 
. Lamina more or less hairy on the sur- 
faces. 
13. Under surface glandular. Pinnz 
auricled at the upper base 
65. D. coarctata (Kze.) C. Chr. 
13. Under surface not glandular. Pinne 
not auricled, shortly pubescent 
throughout; indusium very pilose 
66. D. leucothrix C. Chr. 
10. Segments long, linear, falcate or very oblique; 
veins 7—9-jugate. 
11. Lamina downwards gradually narrowed. 
12. 
12. 
Under surface glandular 
67. D. panamensis (Pr.) C. Chr. 
Under surface not glandular 
144. D. scalaris (Christ) C. Chr. 
11. Lamina downwards abruptly narrowed, 
eglandullosesew. e. rtm 68. D. silviensis Hieron. 
7. Veins prominent above, occasionally furcate. Lamina 
chartaceous or 
coriaceous. 
8. Lamina chartaceous or membranous, nearly glabrous; 
pinne as a rule unequal-sided 59. D. consanguinea (Fée) C. Chr. 
8. Lamina coriaceous, hairy on the ribs; pinne scarcely 
mnequal-sided P PE 69. D. scalpturoides (Fée) C. Chr. 
4. Lamina towards the base shortly attenuate with 1—4 pairs of 
reduced pinnz (type I), 
or, in some species, without auriculi- 
form pinna. Basal segments equal or shorter than the others, 
seldom a little longer. 
Middle-sized species. 
5. All pinnee sessile. Sori round. 
6. Rachis (and cost beneath) without scales, at least the 
scales are very few and deciduous. 
7. Sporangia setose. Indusium absent or rarely found. 
8. Rachis and coste beneath densely pulverulent by 
very short hairs, long hairs absent 
8. Rachis and 
longer hairs. 
70. D. concinna (Willd.) O. Ktze. 
coste beneath sparsely pubescent by 
