CHARACTERS OF TRIBES AND GENERA. 145 



J. Sin., Bedd. F. Brit. Ind., 325 (Acrostichum Photinopteris 

 drynarioides, Hook. Sp. Fit.) 



A native of Penang and Solomon Islands. 



X 



Sect. 4. ACROSTICHEJ;. 



Vernation fasciculate erect, or decumbent. Fronds pin- 

 nate. Venation reticulated, without free veinlets. 



60. NEDROCALLIS, Fee. (1844). 

 Acrostichum sp., auct. ; Hook. Sp. Fil. 



Vernation fasciculate, decumbent. Fronds pinnate, 

 3 to 4 feet high, smooth. Sterile pinnce elliptical, lanceo- 

 late, acuminate, entire, 8 to 10 inches long, 2 inches 

 wide, sessile adherent with the rachis. Veins uniform, 

 reticulated ; areoles oblong, hexagonoid. Fertile fronds 

 contracted, pinnae linear, acuminate, plane, wholly sporan- 

 giferous on the under side. Sporangia destitute of indusioid 

 scales. 



Type. Acrostichum prcestantissimum, Bory. 



Illust. Hook. Gard. Ferns, t. 58 ; Moore Ind. Fil., p. 5, 

 fig. 1 and 5 ; J. Sm. Ferns, Brit, and For., fig. 44. 



OBS. This genus is founded upon a splendid pinnate- 

 fronded Fern, found only in the islands of Guadaloupe and 

 Dominica. In the character of its venation it agrees with 

 Lomagramma, from which it differs in the pinnee not being 

 articulate with the rachis. 



Sp. H. praBstantissima (Bory.) (v v.) 



61. ACROSTICHUM, Linn, (in part) (1737). 

 Chrysodium, Fee. ; Acrostichum, Hook. Sp. Fil. 

 Vernation fasciculate erect. Fronds coronate, pinnate, 

 smooth, 2 to 8 feet high ; pinnae entire, from 6 to 18 inches 

 L 



