232 CHARACTERS OF TRIBES AND GENERA. 



stituting linear simple sori, analogous to Grammitis, to 

 which the species have been referred by some authors, but 

 their entirely distinct habit shows that they possess no 

 direct affinity with Grammitis, as here denned. They have 

 also been referred to Gymnogramma, under which genus 

 they stand in the " Species Filicum." 



The genus consists of about ten known species, of which 

 six are natives of the West Indies and Tropical America, 

 the other four being natives of Tropical Africa, India, Java, 

 and Japan, L. totta having a very wide range, being found 

 in the Azores, Madeira, Western and South Africa, Ceylon, 

 East Indies, Java, China, and Japan. 



Sp. L. asplenioides (Sw.) (v v.) ; L. totta (Willd.) (v v.) 

 (Gymnogramma, Lowei, Hook, and Grev., t. 89) ; L. Linkiana 

 (Kze.) (v v.) ; L. rupestris (Kze.) (v v.) ; L. villosa (Link.) 

 (v v.) ; L. polypodioides (Eaddi) (v v.); L. gracilis (Hew.) 

 (v v.) ; L. subsimilis (Hook) ; L. decurrenti-alata (Hook.) 

 L. obtusata (Blume). 



123. PHEGOPTERIS, Fee. (1851). 

 Polypodium sp. t auct. ; Hook. Sp. Fil. 



Vernation uniserial and sarmentose, or fasciculate decum- 

 bent, or erect, acaulose or subarboroid. Fronds varying 

 from pinnate to deltoid decompound multifid, and from 

 1 to 6 feet high. Feins forked or pinnate ; venules free. 

 Receptacles punctiform, terminal, lateral or basal. Sori 

 round, rarely oblong, naked. 



Type. Polypodium decussatum, Linn. 



Illust. Moore Ind. Fil., p. 56 A., fig. 5 ; J. Sm. Ferns 

 Brit, and For., fig. 84; Hook. Syn. Fil., t. 5, fig. 

 48, c. d. 



OBS. This genus consists of 50 or more species widely 



