270 



FERNS : BEITISH AND FOEEI«N. 



1C4. KAULmSSIA, Blume. 



Vemafion imiserial, contiguous, decumbent; sarmentnm 

 thick, fleshy ; each frond rising from between two short, fleshy, 

 stipuiaeform appendages. Fronds broad, pinnately -trifoliate, with 



the two lower pinnse sometimes 

 bipartite, 1-2 feet high, long, 

 stipate, pale underneath, and 

 furnished with numerous con- 

 cave dots. Veins costaeform, 

 parallel ; venules compound ana- 

 stomosing^ with free veinlets 

 terminating within the areoles. 

 Synangia sessile, compital, super- 

 ficial, distant, orbicular, concave- 

 hemispherical, each consisting of 

 10-20 sporangia, laterally con- 

 nate in a cii'cular series, and 



Genus 154. — Portion of fei tile (rond, • t •>•. ii,„' * * :„« 



siighiJy enlarged. No. 1. openmg by a sUt on their mtenor 



1. K. aescTilifolia, Blume; Book, et Grev. Ic. FU. t. 229; 

 Hook. Gen. Fil. t. 59 A. — Java and Philippine 

 Islands. 



OsDEB, m.— OPHIOGLOSSACE.ZE. 



riowerless plants consisting of straight evolved fronds, which 

 produce from their disk or base a rachiform, simple or com- 

 pound paniculate spike, of unilocular, sessile, connate, homo- 

 geneous cases (sporangia), opening by a vertical slit in two 

 valves, containing reproducing spores. 



165. OPHIOGLOSSTJM, Lmn. 



Fronds erect or pendulous, with dissimilar fertile and sterile 

 segments, or rarely the whole frond rachiform. Sterile frond or 

 segments foliaceouB, simple, entire, palmately lobed or dicho- 

 tomously branched. Veins reticulated. Fertile segments spike- 

 like, simple or rarely forked. Sporangia connate, in two rows, 



