330 CHARACTERS OF TRIBES AND GENERA. 



others from different localities, when seen cultivated, may 

 also be called specifically distinct. 



Sp. IS", nidus (Linn.) (v v.) ; N". musaefolia (Mett.) ; N. 

 australasica, /. Sm. (v v.) ; N. phyllitidis (Don.) (v v.) ; 

 N". Grevillei (Wall.); N. Simonsiana (Hook.') (Bedd. F. 

 Brit. Ind., pi. 248). 



OBS. N. muscefolia has the largest simple entire fronds 

 of all Ferns ; it is described by a Penang correspondent in 

 the following words, "I saw two fine specimens of the 

 Bird's-nest Fern ; each had between forty and fifty perfect 

 green leaves ; the average length of the leaves was 6 feet, 

 and from 1 foot to 14 inches across in the broadest part. 

 They were growing on each side of the doorway of the 

 mansion ; when I was walking up to them I thought they 

 were American Aloes." 



188. ANTIGRAMMA, Presl (1836). 

 Camptosorus, Pr. Scolopendrium, Hook. Sp. Fil. 



Vernation fasciculate, erect, acaulose. Fronds simple, 

 cordate, lanceolate, 4 to 18 inches high, erect or decum- 

 bent, in their apex viviparous. Veins forked ; venules 

 straight or curved, angularly anastomosing, reticulated, 

 the marginal veinlets free. Sporangia produced on the 

 proximate sides of two contiguous venules, constituting 

 two linear confluent sori, each furnished with a linear 

 indusium, the free margins of which connive. 



Type. Asplenium brasiliensis, Sw. 



Illust. Hook, and Bauer Gen. Fil., t. 57 A. C. ; Moore 

 Ind. Fil., p. 40 and 41 A. ; J. Sm. Ferns, Brit, and 

 For., fig. 114 j Hook. Syn. Fil., t. 4, fig. 41 b. d. 



OBS. This genus consists of at least four species, all of 

 which have opposite conniving sori, as in Scolopendrium, 



