

ASPIDIE^E ASPIDIUM. 37 



cuneate at the base, unequally bipartite; venation of Drynaria; sori in 

 rows close to the main veins, large; indusium reniform, plane, coriaceous. 



"Luzon?" Cuming s. n., or No. 356 fide Baker, or Panay, s. n., fide Presl 

 sub. A. grandifolio. 



The description does not show wherein this is sufficiently distinct from 

 A. pachyphyllum. 



(13) A. siifolium (Willd.) Mett. Stipe 30 cm. or more high, brownish, 

 naked; frond 30 cm. or more high, 15 to 20 cm. broad, with a broad, 

 oblong, acuminate terminal pinna, and 3 to 4 lateral ones on each side, 

 the lowest stalked, 8 to 10 cm. long, 5 cm. broad, forked at the base 

 and rather deeply lobed, subcoriaceous; main veins close, distinct to the 

 margin; areola^ fine, with free included veinlets; sori large, in rows close 

 to the main veins, often confluent. 



Luzon, Cuming 4. 1 

 Java and Sumatra. 



(14) A. cicutarium (L.) Sw. Rhizome ascending; stipe 30 cm. or 

 more high, bearing scattered deciduous, spreading paleae; frond 80 cm. 

 more or less high, subdeltoid, apex deeply pinnatifid; below this, 3 to 6 

 pinnae on each side, papyraceo-herbaceous or subcoriaceous, glabrous unless 

 on the midribs, the lowest pinnae subdeltoid, deeply pinnatifid or pinnate 

 below; main veins distinct to near the margin; areolse with few or no 

 free included veinlets; sori rather large, in rows near the main veins; 

 indusium round-reniform. 



Isabela-Luzon, Warburg 11973; Mount Mariveles, Loher, Copeland 217; 

 Davao, Warburg 14166. 



Pantropic. Exceedingly variable. 



(15) A. vastum Blume. Rhizome creeping; stipes scattered, narrowly 

 winged often nearly or quite to the base; frond 1 m., more or less, high, 

 30 cm. or more broad, cut down to the very broadly winged rachis into 

 entire, linear-oblong segments 15 to 30 cm. long, 3 to 5 cm. broad, 

 papyraceo-herbaceous or subcoriaceous; main veins distinct three-fourths 

 of the way to the margin; areolae copious, with free included veinlets; 

 sori small, scattered. 



Panay, Cuming 356 in part. 

 India and Malaya. 



(16) A. melanocaulon Blume. Rhizome ascending; stipe 30 cm. or 

 more high, ebeneous, glossy, scaly at the base; frond 30 to 60 cm. high, 

 ovate-deltoid, with a large, deeply pinnatifid terminal pinna, and 1 to 4 

 lateral ones on each side, the central one deeply pinnatifid with ovate- 

 acuminate lobes, the lowest stalked, 15 to 30 cm. long, 10 to 15 cm. broad, 

 often again pinnate at the base, papyraceo-herbaceous; main veins reaching 

 the margin; areolse fine, with free included veinlets; sori numerous, 

 minute, scattered; indusium fimbriate, fugacious. 



Luzon, Cuming 57. 

 Malaya. 



1 This is inserted here on the authority of the Synopsis Filicum, p. 299. 

 A sterile frond in our herbarium strongly suggests Arcypteris, and both 

 Smith and Hooker (Sp. Fil. V:86) treated this plant as exindusiate. 



