AN ENUMERATION OP CULTIVATED FERNS. 269 
153. DANJEA, Sm. 
Vernation uniserial, contiguous, decumbent ; sarmentum 
thick, fleshy ; each frond rising from between two short 
stipulaeform appendages, and having the stipes once or more 
times articulated. Fronds pinnate, rarely simple, 1-3 feet high, 
the fertile usually somewhat contracted; pinnae opposite, linear- 
lanceolate, articulated with the rachis. Veins forked ; venules 
Genus 153. — Barren and fertile frond, natural size ; synangiutn enlarged. 
No. 1. 
parallel, their apices arcuate and anastomosing at the margin. 
Synangia sessile, immersed, linear, contiguous, occupying nearly 
the whole length of the venules, and covering the whole under 
surface of the fertile fronds ; each consisting of two rows of 
numerous laterally and oppositely connate sporangia united 
into a concrete mass, forming linear synangia, each cell opening 
by a circular pore at their apices. 
1. D. alata, Sm. ; Hook. et Grev.Ic. Fil. <.18; Hook. Gen. Fit. 
t. 7. — West Indies and Tropical America. 
2. D. nodosa, Sm. ; Sclik. Fil. t. 152 ; Hook, et Grev. Ic. Fil. 
t. 51. Asplenium nodosum, Linn. (Plum. Fil. t. 108). 
— West Indies and Tropical America. 
