VITTARIRiE ANTROPH Yl M. 109 



(5) A. coriaceum Wall. Fronds 15 to 20 cm. high, 1 to 2 cm. broad, 

 narrowed gradually from the middle to the acute apex and usually sessile 

 base, very thick; costa wanting; sori entirely immersed, confluent or not. 



Los Bauos, Loher. 



Himalayas, southern China, Malaya. 



(6) A. parvulum Blume. Fronds 10 to 20 cm. high, 1 to 2 cm. broad, at- 

 tenuate from the middle to the acute apex and short stipe; costa wanting; 

 sori rather sparse and straight, in grooves, mostly free. 



Mount Apo, Copeland 1117. 

 Java. 



(7) A. reticulatum Kaulf. Fronds 15 to 50 cm. high, mostly about one- 

 tenth as broad, exceedingly variable, broadest in the middle or near the 

 apex, gradually or abruptly contracted to an acuminate or merely subacute 

 apex, attenuate below to a sessile base, or (in Philippine specimens) short 

 stalk, thin-coriaceous; costa black or green, usually visible for a few cen- 

 timeters into the frond, sometimes wanting, venation very evident; sori 

 usually copious and anastomosing, rarely sparse, or even reduced to two 

 lines on each half of the lamina. This is our commonest Antrophyum, and 

 in one or another of its forms approaches almost all the other species. Our 

 commonest form is A. falcatum Bl., which is shorter-stalked than the type, 

 but not really distinguishable. A. Cumingii Fee, Cuming 416, also col- 

 lected in southern Luzon by Baranda, is likewise inseparable from it. 



Benguet, Elmer 6126; Mount Arayat, Loher; Mount Mariveles, Merrill 

 2540, Copeland 210, 211; Rizal, Merrill 2665; Davao, Copeland 974; Jolo 

 Archipelago Burbidge. 



India across Polynesia. 



