ASPLENIE^E CALLIPTERIS. 71 



with numerous pinnae and a large pinnatifid terminal segment; pinnae 8 

 to 20 cm. long, 3.5 to 5 cm. broad, entire or serrate or slightly lobed, 

 acuminate, the lower stalked, the upper sessile and sometimes proliferous; 

 veins in pinnate groups, the veinlets from neighboring veins uniting to 

 form a series of arches; sori on all these veinlets, but the veins running 

 from the costa to the margin sterile. 



Luzon and Leyte, Cuming 303; Baco River, Mindoro, Merrill 1776; 

 Davao, Copeland 663, 949; San Ramon, Zamboanga, Copeland 737. 



Africa across Polynesia. 



(6) C. esculenta (Retz). Caudex sometimes rising above the ground; 

 stipes 30 to 60 cm. high, firm green, almost smooth; fruiting fronds 

 80 to 150 cm. high, half as wide, bipinnate; pinnules more or less lobed, 

 acute, truncate at base, sometimes auricled, glabrous, herbaceous; veins 

 pinnate running directly from costa to margin, sterile, their branches 

 bearing sori, anastomosing in pairs from neighboring veins forming a 

 series of small arches. 



Luzon, Haenke; Manila, Loher; Warburg 12746; Province of Bataan, 

 Merrill 2542, 2552; Carranglang, Merrill 280; Benguet, Topping 210; 

 Davao, Copeland 604. 



India to Malaya and Formosa. 



The young plants are eaten as greens by natives everywhere, called 

 "Paco." 



(28) ALLANTODIA R. Brown (in part). 



Veins forming 2 or 3 series of areolse in the marginal half of the lamina 

 and ending in an intramarginal cross-vein ; sori running from near the 

 costa to the first areola; indusium fastened all round its margin, and 

 rupturing irregularly when the spores mature. A single terrestrial fern, 

 apparently related to Callipteris. 



The first plant described in this genus has since been placed in 

 Asplenium Athyrium; but the genus is now universally recognized as 

 defined here. 



(1) A. javanica (Blume) Beddome. Rhizome short; stipe about 30 

 cm. high; frond 30 to 60 cm. high, half as broad, pinnate; pinnae lance- 

 olate, entire or serrulate at the apex, glabrous, membranaceous. 



Davao, Warburg 14118. 



India across Polynesia. 



(29) DIPLAZIUM Swartz. 



Rhizome creeping, or more often erect; fronds simple to tripinnate; 

 veins free; the lowest acroscopic branch of each vein bearing a double 

 sorus, the other fertile veinlets bearing single sori on the side facing 

 the apex of the vein the veinlet springs from, as in Asplenium. Mostly 

 robust terrestrial ferns. Palese often harsh and dark; main roots usually 

 stout and black. 



