﻿71. POLYPODIUM. § 6. PLEOPELTIS. b^. LEPISORUS. 629 



y^.X. Barren fronds under 2 c.M. long. 



(1436) P. damunense. 

 f,f. Fertile fronds repand or slightly lohed. 

 ifi. Repand. Sori on the lobes. 



(144) P, nummularium, 

 ^.^. Lobed. Sori on the anterior side of the lobes. 



(145) P. hammatisorum. 

 e.e. Sori distinctly immersed. 



■f . Fertile fronds lanceolate in the lower, linear in the 



soriferous upper half. (146) P. stenopteris. 



•f.-J". Fertile fronds linear-lanceolate. (147) P. soridens. 



c.c. Fronds uniform or nearly so, the fertile ones sometimes narrower 



and longer stalked. 



f . Sori superficial or slightly immersed. 



2. Sori in i row on each side of the midrib. 

 3. Fronds small, under 3 c.M. long. 



jtc. Fertile fronds cuneale at the base. 



(148) P. neglectum. 

 i(i.i(.. Fertile fronds rounded at the base. 



(149) P. rudimentum. 

 3.3. Fronds larger, 5 — 30 c.M. long. 



S=. Sori submarginal. (1^0) P. subecostatum. 



^.^. Sori distant from the margin. 



S. Fronds lanceolate-oblong, rostrate, 5 — dO 



c.M. long. (ISl) P. rostratum. 



S.S. Fronds linear-lanceolate, not rostrate, iO — 



30 c.M. long. (152) P. lineare. 



9.2, Sori in 2 rows on each side of the midrib. 



;|c. Fronds lanceolate-oblong, under 15 c.M. long, short- 

 stalked. (153) P. Porbesii. 

 5|f .;tc. Fronds linear-lanceolate, more than 15 c.M. long, 

 long-stalked. (1^4) P. induratum. 

 1.1. Sori distinctly immersed. 



a. Sori nearer the edge than the midrib. 



p. Sori round. (IBS) P. stenopbyllum. 



^.jS. Sori oblong. (156a) P. revolutum. 



(1566) P. productum. 

 «,«, Sori distant from the margin. 



