﻿594 71. POLYPODIUM. § 1 EUPOLTPODIUM. d. PINNATAE. 



S'. Stipes very short; fronds to 2 

 c.M. broad. 



(87) P. barathrophyllum. 

 S'.S'. Stipes 5 — <^ c.M. long; fronds 

 2% — 4 c,M. broad. 



(88a) P. blechnoides. 

 S'.S'.S'. Stipes to iO c.M. long ; fronds 

 more than 5 c.M. broad. 



(886) P. multicaudatum. 

 4.J. Pinnae toothed. 



•J-. Sori round, confluent. (89) P. sibarongae. 



•J-.-J-. Sori oblong, distant. (90) P. solidum. 



3.3. Rachis hairy on i or both sides. 



p. Sori superficial or hardly immersed. 



f . Fronds ± iO — 15 c.M. long. Sori slightly 

 immersed. (91) P. subobliquatum. 



^.f. Fronds + 20 — 40 c.M. long. Sori quite super- 

 ficial. (92) P. nutans. 

 p.p. Sori distinctly immersed. 

 q. Sori submarginal. 



X. Stipes winged. (93) P. Leysii. 



x.x. Stipes not winged. (94) P. stenobasis, 

 q.q. 'Sori not submarginal. 



r. Rims of the cavities elevated. 



(95) P. craterisorum. 

 r.r. Rims of the cavities not elevated. 



s. Pinnae subentire. (96) P. decorum. 

 *.*. Pinnae crenate or toothed. 



(97) P. Lobbianum. 

 a.a. Most of the pinnae distinctly separate at the base. 



b'. Sori solitary on the pinnae. (98) P. clavifer. 



h'.h'.Sori not solitary on the pinnae. 



c'. Fronds rather small, under i5 c.M. long, under i^j^ c.M. broad. 



(99) P. Schefferi. 

 c'.c'. Fronds larger, more than i5 c.M. long, more than i^\^ c.M. broad. 

 d'. Pinnae entire, crenate or undulate. 



e'. Pinnae entire, blunt. Stipes clothed with reddish hairs. 



(lOOo) P. venulosum. 



