CHARACTERS OF TRIBES AED GENERA. 



54. CHEIROPLEURIA. Pr. (1849). 

 Acrostichum, sp. Hook. Sp. Fil. 



Vernation sarmentose. Fronds distant or contiguous, 1| or 

 more feet in length, long stipate, flabellately bi- tripartite, 

 firm, coriaceous. Main veins, two to three, radiating from 

 the base, venules compoundly anastomosing. Fertile fronds 

 wholly, or the central lobes only, sporangiferous. 



Type. Acrostichum licuspe, Hook. 



Illust. Hook. Sp. Fil. 5, t. 304. 



OBS. This genus consists of two species, which in 

 venation agree with Gymnopteris, but differ so much in 

 aspect and texture that I deern it best to follow Presl in 

 viewing them as a distinct genus. 



Sp. C. bicuspis (Hook.) ; C. vespertilio (Hook.), Lond. 

 Journ. Bot., p. 193, t. 7 and 8 ; C. tricuspe (Hook.). 



Sikkim, Java, and other Malayan islands. 



OBS. It is probable that the above three species are 

 different forms of one only. 



Sect. 3. ARTHROBOTR.E. 



Vernation sarmentose. Fronds pinnate or bipinnate, 

 segments articulated with the rachis. Veins free or an- 

 gularly anastomosing. 



* Veins free. 



55. LOMARIOPSIS, Fee (1844). 



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



Vernation uniserial ; sarmenturn scandent. Fronds pin- 

 nate, 1 to 3 feet high ; pinnae linear, elliptical, broad 

 lanceolate, acuminate, 2 to 10 inches long, articulate 

 with the rachis. Veins uniform, simple, or forked, direct, 



