107 159 
173. Dryopteris Thomsonii (Jenm.) C. Chr.; Smiths. Misc. Coll. 52: 389. 
Syn. Dryopteris Stübelii Hieron., C. Chr. Revision nr. 67. 
Area: Jamaica, Colombia; Ecuador, Llalla, Spruce nr. 5651 (Kew, L, RB). 
174. Dryopteris mapiriensis Rosenstock, Fedde, Repert. 6: 315. 1909. — Fig. 18. 
Type from Bolivia: San Antonio prope Mapiri, 800 m, BucHLIEN nr. 1131 
(R!. A most distinct species, different from the allied D. decussata by its small 
size, fewer veins, densely villous rachis and costz, thin texture and lack of aéro- 
phores at the base of the costules. 




E 
MUM 
SUA 


Fig. 18. D. mapiriensis Ros. — 
Enna "ls; DS ESSE uuo Fig. 19. D. polyphlebia n. sp. Portion of 
Fa guadeeside and lone uses pinna, >< *[;; segment >< 11/2 and frag- 
from above, »« 1/2; fragments pease dt 
seen from both surfaces >< 4. 
(orig.) 
175. Dryopteris decussata (L.) Urban, Symb. Antill. 4: 19. 1903; C. Chr. Ind. 261. 
Syn. Polypodium decussatum L. sp. 2: 1093. 1753; Jenm. Bull. Bot. Dept. Ja- 
maica n. s. 4: 130. 1897. (for other synonyms see Ind. Fil.). 
Polypodium grammicum Spr. Neu. Entd. 3: 6. 1822! 
21* 
