POLYPODIACEJE. 23 



dentate point, the margin very regularly and finely serrate, with an 

 unequal, sometimes rounded, but usually acute base. Sori becoming 

 confluent and concealing the under surface of the pinnae, leaving only 

 a naked space at the margin, about 2 lines in breadth. 



This differs from the C. Javanicum of Blume, in the margin of the 

 pinnae being serrate, and pilose on the under surface. 



Plate 4. — Fig. 1. Portion of a frond, natural size. 1 a. Section of 

 a pinna, showing the sori. 1 b. Hairs from the rhachis beneath. 1 c, 

 c. Sporangia. — The analyses magnified. 



4. Gymnogramma myriophyllum, Sw, 



Gymnogramma myriophylla, Sw. ex Kaulf. Enum. Fil. p. 71. 



Hab. Organ Mountains, Brazil. 



t 



Stipes from 3 to 4 inches long, angular, with the lower half of a 

 purplish-brown colour. Fronds 8 to 10 inches long, slender, tripin- 

 nate, and covered all over with a short pubescence. Pinnules small, 

 decurrent, ovate, obtuse, and incised with emarginate segments. 



# * Frondes glabrce vel farinosce. 



5. Gymnogramma Javanicum, Blume. 



Gymnogramma Javanicum, Bl. Enum. PI. Jav. p. 112. 



Hab. Luzon, Philippine Islands ; in mountains near Bafios. 



Blume describes this species as bipinnate at base and pinnate 

 towards the point. We have only a single frond of what we deem to 

 be his plant, and this agrees with all the characters contained in his 

 short description, except that it is simply pinnate. 



6. Gymnogramma triangulare, Kaulf. 



Gymnogramma triangulare, Kaulf. Enum. Fil. p. 73; Hook. & Grev. Ic. Fil. t. 153; 

 Hook. & Am. Bot. Beech. Voy. p. 161. 



