65 117 
9. Andine species. Pinnz opposite, firm; veins about 
S;jusatep c reu c DATUR 71. D. rufa (Poir.) C. Chr. 
9. South Brazilian species. Pinn:s alternate, herba- 
ceous; veins about 5-jugate.... 72. D. Stierii (Ros.) C. Chr. 
7. Sporangia glabrous. 
8. Lamina herbaceous or membranous. 
9. Rachis subglabrous or more or less pubescent by 
long hairs, not densely pulverulent by very short 
hairs. 
10. Lower pinnse not or a little reduced, not 
auriculiform. 
11. Pinnz 3—4 em long; rachis and coste on 
both sides pubescent. Indusium none 
73. D. blanda (Fée) C. Chr. 
11. Pinnz 6—7 cm; rachis and cost beneath 
glabrous. Indusium present 
74. D. tablana (Christ) C. Chr. 
- 10. 1—5 pairs of lower pinnz much reduced, 
auriculiform or glanduliform. 
11. Stipe at base with many long, brown, 
squarrose scales. 
12. Pinnz about 6 cm long, rigidly mem- 
branous or papyraceous. 
13. Reduced pinne few (1—2 pairs). 
Veins above with long sete 
75. D. Rimbachii Ros. 
13. Reduced pinnz in 4—5 pairs. Veins 
above without long setze. 
14. Lower pinnz gradually redu- 
ced. Upperside hairy, not glossy 
76. D. brachypus (Sod.) C. Chr. 
14. Lower pinne suddenly reduced. 
Upperside glabrous, glossy 
77. D. supranitens Christ. 
12. Pinnz about 12 cm long, not glossy 
above, thinly membranous 
78. D. tablaziensis Christ. 
11. Stipe at base with a few scattered, short 
scales or scaleless. 
12. Hairs of rachis beneath none or few, 
early deciduous. 
13. Pinne unequal-sided, the anterior 
(upper) side being broader than 
the posterior one. 
14. Pinne not deeply cut with a 
straight, entire, cuneate base on 
the lower side. Underside eglan- 
dulose. Veins 1—3-jugate 
58. D. longicaulis (Bak.) C. Chr. 
14. Pinnz regularly pinnatifid on 
both sides. Underside glandu- 
lose. Veins 3—4-jugate 
57. D. sanctiformis n. sp. 
D. K. D. Vidensk. Selsk. Skr., 7. Reekke, naturvidensk. og mathem. Afd. X. 2. 16 
