AN ENUMERATION OP CULTIVATED FERNS. 91 



18. DICRANOGLOSSUM, /. 8m. 



Rhizome short, csespitose. Fronds 

 contiguous, furcately-pinnatifid, 6-12 

 inches high, coriaceous, sparsely squa- 

 miferous, segments lanceolate- cuspidate, 

 the fertile slightly contracted. Veins 

 obscure, simple, or forked, free, or their 

 apices arcuately anastomosing, forming 

 linear transverse superficial receptacles, 

 which, by contiguity, constitute a con- 

 tinuous or interrupted, linear, intra- 

 marginal, naked sorrs. 



1. D. furcatum, J. 8m. ; Bot. Voy. 

 Herald. Pteris furcata, 

 Linn.; Plum. Fil. t. 114. 

 Taeuitis furcata, Willd. ; 

 Hook, et Grev. Ic. Fil. t. 7. 

 Pteropsis furcata, Presl. ; 

 J. 8m. Gen. Fil. 1841. Cus- 

 pidaria furcata, Fee, Gen. 

 Fil t. S '.A, f : 2- West GenusI3 _ Porti()Ilof fertlle 

 Indies and Tropical America. frond, under side. Xo. i. 



19. HYMENOLEPIS, Kaulf. 

 EJiizomes short, caespitose. Fronds simple, 6-12 inches long,. 



Genus 1Q. Portion of fertile frond, natural size; ditto fertile and sterile, 

 enlarged. No. 1. 



