102 CHASACTEES OF TEIBE3 AND GENERA. 



deny some states of S. heterocarpa and S. Fesi a place in 

 Pleitridium. 



This gemis consists of about 8 to 10 known species, all 

 natives of Tropical India, Malayan Peninsular and islands. 



The geims Lo.roijrari'cna contains species analogous in 

 habit, venation, and linear sori, but differs in having 

 adherent vernation. 



* Fronds sini'nle. 

 Ex. S. caudiforme (Bl.) (v v.) ; S. Feei, Borg. ; S. ma- 

 orophylla, Bl. ; S. Wrightii {Ilooli.) ; S. heterocarpa, Bl. ; 

 S. Hamiltoniana, Wcdl. 



** Fronds pinnaiifidly pinnate. 

 S. pothifolia (Don.) (v v.) 



Sect. 4. — PHniATODEi;. 



18. Phtmatodes, Presl (1836). 

 Polypodii'rii sp. and., Hook. Sp. Fll, 



Surcidum generally thick, short, or much elongated, 

 becoming smooth. Fronds simple, pinnatifid, or pinnate, 

 smooth, coriaceous, or thin, flaccid, segments adherent with 

 the rachis. Primary veins uudeGned or evanescent, rarely 

 defined. Venules compound anastomosing-, with free vein- 

 lets terminating in the areoles, internal, obscure, or 

 evident. Becepfacles compital, in some deeply immersed. 

 Sori round or oblong-, sub-medial, transversely uniserial, or 

 irregular by confluence, naked. 



Type. Pohjpodium Phyniatodes, Linn. 

 Illust. Hook. Pil. Exot. t. 22, 25 ; Hook. Gard. Ferns, 

 t. 47 ; Moore Ind. Eil. p. 62, fig. 7 ; J. Sm. Ferns, 

 Brit, and For., fig. 21 ; Hook. Syn. Fil., t. .5, fig. 

 48 m. 



