71. POLYPODIUM. 57 1 



•^. Fronds stipitate. 



X. Fronds lobed or pinnatifid. 



§ 6, C*. Phymatodes. 

 x.x. Fronds pinnate. § 6, c**. Phymatopslt*. 

 f.-t. Fronds sessile. 



*. Sori not on much contracted fertile segments. 



§ 6, C***. Drynariopsls. 



*.>!<. Sori restricted to the much contracted higher 



segments. § 6, c****. Aglaomorpha. 



§ 1. EUPOLYPODIUM. a. Integrifoliae (>)• 



«. Sori round, not oblong when young; receptacle round.^[Cychcarpmm). 

 b. Fronds small, under J'/^ c.M. long. 



c. Fronds roundish or oblong, nearly as broad as long, naked. 



(1) P. flabellivenium. 

 C.C. Fronds linear or linear-lanceolate, much longer than broad. 



a. Fronds naked or sparingly scaly. (2) P. oblanceolatum. 



d.d. Fronds hairy. (3) P. trichopodum. 



h.h. Fronds larger, more than 7 '/a c.M. long. 



$. Sori in i regular row on each side of the costa. 



^. Fronds under 20 c.M. long, naked. (4a) P. oleandroides. 



:)(..if:. Fronds longer, hairy. (ib) P. ornatissimum. 



$.$. Sori in i or more irregular rows, or scattered irregularly. 



>K' Fronds membranaceous, villose. (5) P. Friderici et Pauli. 



%.))f, Fronds coriaceous, rather naked. (6) P. pleiosoroides. 



aM. Sori oblong, at least when young; receptacle oblong.i (Grammids). ^ 

 ±. Stipes and fronds naked (*). 



S. Fronds narrow, under 5 m.M. broad. 



f. Fronds subterete, rush-like. (7) P. bisulcatum. 



•J-.t. Fronds flattened, not rush-like. 



>(:• Fronds shortf under iO o.M. lo n g . Sori subimmersed. 



ffv o-c^e^^'c^'t^ - (8) P. Maxwellii. 



*.:!K. Fmnds — longer, more than iO e.M. long when fully de - 

 volopod, Sori deeply immersed, t^lc^if^t-^-t-a^^ 



(') See also P. ludens, Bk. 



(') See also P. Hoordersll, Christ. 



