AN ENUMERATION OF CULTIVATED FERNS. 



91 



18. DICRANOGLOSSUM, J. 8m. 



Rhizome short, caespitose. 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. ; Hot. Voij. 

 Herald. Pteris furcata, 

 Linn. ; Tlum. Fil. t. 114. 

 Tseuitis furcata, Willd. ; 

 Boole, et Gvev. 1c. Fil. t 7. 

 Pteropsis furcata, Presl. ; 

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

 pidaria furcata, Fee, Gen. 

 Fil. t. 8 A, f. 2 — West 

 Indies and Tropical America. 



Genus 18.— Portion of fertile 

 frond, under side. No. 1 . 



19. HYMETTOLEPIS, Kaulf. 

 Rhizomes short, coespitose. Fronds simple, 6-12 inches long, 



Genus ID.— Portion cf fertile frond, natural size; ditto fertile and sterile, 

 enlarged. No. 1. 



