ASri.KMK.i: — ASl'I.KNUM. 79 



T am uiial)lo to locate Thnmnoptcris stipitala Prc-tl. coll cot od in Luzon 

 by Cuiiiiii'j H*">. 



(2) A. scolopendrioides .1. Sm. Kliizome S iiiin. in iliaiiit'tcr, clothed 

 with lanceolate, brown cliafT; stipe 2 to 4 cm. hifih, xealy or almost naked, 

 passinjj insensibly into the attenuate base of tiie frond; fronds 40 to 50 

 cm. iiif,'li, .'J to 4 cm. broad, apex caudate, marj^in entire, texture subco- 

 riaceous; veins oblique, usually simple, rather remote; sori reaching from 

 the midrib to witliin (i nun. of the marj^'in ; edpe of tin- indusium leaving 

 a distiiu't ridge f)n the lamina where it dehisces. 



I'hiliiipines, Cumin;/ .118; Haco River, Mindoro, .]tcnill 1810. (This de- 

 cription adapted to Merrill's plant.) 



Tlie fern of DcVorc and Hoover .329, from Mount Apo. difTers most 

 conspicuously in the indusium's leaving no prominent line wiiere it 

 dehisces, but the material in hand does not justify its description as a 

 new species. 



(.3) A. squamulatum Hlume. Stipe tufted, ii to 10 cm. long, scaly 

 below; frond lanrrDlatc, .'{() to 70 cm. long, 4 to cm. broad, acuminate, 

 base gradually attenuate to the stipe, entire or nearly so, lamina coriaceous, 

 glabrous, midrib somewhat chaffy; veins inconspicuous, as a rule free; 

 sori reaching fiom near midrib to within 1 cm. of the margin. 



Southern Luzon, liaranda : Montalban, Loher; Todaya, Davao, 1,200 m., 

 Copeland 1201. 1288. 



Java, Borneo. 



(4) A. apoense (opcland. Uhizome very .short, erect; stipes clustered, 

 stout, scaly, 1 to ."> cm. high, ])assing insensibly into the attenuate base 

 of the frond: costa stout, scaly; frond 20 to 3.1 cm. high, !.."> to 2.5 cm. 

 broad, entire, acute, glabrous, coriaceous; veins inconspicuous, erccto-patent, 

 usually forked; sori linear, reaching two-thirds of the way from the costa 

 to the margin. 



Mount Apo, Mindanao, 1,800 m., Copeland 1108; epiphytic in clumps. 



(.)) A. vittaeforme Cav. Rhizome creeping, naked; stipe short, erect, 

 naked; frond hin< dilate. 30 to 45 cm. long, 4 to 8 cm. broad, narrowed 

 to an acute point and very gradually into the stem below, the margin 

 obscurely toothed; texture coriaceous; veins simple, close, nearly horizon- 

 tal, the copious sori often reaching from the midrib nearly to the edge. 



Davao, M'arhurfj 14112; southern Luzon, Baifnidn. 



Java, Fiji. 



The stipes are jointed to the rhizome, as in Polypodiuni. 



(6) A. epiphyticum Copeland. Rhizome scandeut, bearing scattered, 

 minute scales; stipes about 8 cm. long, clothed with minute ferruginous 

 scales; typical fronds simple, 20 to .30 cm. high, about 4 cm. wide, 

 acuminate, base obtuse or subacute, margin serrate or crenate, texture 

 niembr:inaceous; costa stout, like the stipe; lamina glabrous; veins conspic- 

 uous, usually forked, almost transverse; sori linear, touching neither costa 

 nor margin; younger plants bear fronds bi-tri-pinuati-dissected; and there 

 are intermediate forms. 



Davao, Mindanao, epiphytic on tnuiks in coast forest. Copeland GG4. 



