112 9. TEICHOMANES. § 2. EUTRIOHOMANES. 



(47a) T. Cliristii, Copel. 



A duplicate of Elmer's No. 14020, from Mindanao^ occurring in the 

 Buitenzorg Herbarium, is distinguished by the following characters: 

 Rhizome subatro-tomentose. Stipes scattered, to 2 cm. or more long, 

 provided with short or flbril-like, pale-brown, scattered hairs, as are the 

 rachises, costae and costulae beneath. Fronds deltoid-ovate, 3-pinnatifld, 

 acute. Ultimate segments V2 — 74 • ™™- broad, blunt, entire or emarginate 

 at the point, slightly crisped, provided with an intramarginal, flexuose, 

 slightly interrupted spurious vein. Texture thin;_ main rachis at best 

 winged in the upper part except in the younger plants; a single central 

 vein carried only into each ultimate segment. Sori paniculate in the 

 upper part of the fronds of adult plants; indusium distinctly winged, the 

 mouth dilated, at length spreading, sub-2-lobate ; receptacle whether or 

 not exserted. 



Also in Mindanao. 



(47&) T. lalipinuum, CopeL, in Philipp. Journ., VF', 71. 



Rhizome creeping, stout, densely clothed, with purple-black, needle- 

 like hairs. Stipes + 10—20 cm. long, and, Uke the rachises, brown or 

 purple-black and deciduously fibrilloso-pilose. Fronds deltoid, + 15 cm. 

 long and 10 cm. broad, 4-pihnatifid. Pinnae and pinnulae lanceolate- 

 deltoid, the lower anterior pinnulae the largest; pinnulae cut down to 

 the rachis, with the lowest anterior segment the largest, elongate-oblong, 

 cuneate at the base. Ultimate segments suberect, linear, + '/i — 2 mm. 

 long, the longest very narrow, + '//, — '/s i^i™' broad, simple, acute, the 

 broadest + 2 — 4-dentate at the apex. Texture coriaceous; surfaces 

 naked, or very minutely paleaceo-fibrillose on the veins. Sori often on 

 the higher pinnulae, on the inner side near the base ; indusium cuneate- ' 

 clavate, narrowly winged at the base, truncate, the receptacle somewhat 

 exserted when ripe. 



New Gkiinea. 



(47c) T. rcccclciis, «*#., in Med. R. H. L., 1912, 11, 2. 



Rhizome creeping, clothed with dense, black-brown tomentum. Stipes 

 slender, terete, 1 % — 2 cm. long, when young (provided like the whole 

 plant) with caducous, hair-like, cellular corpuscles, at length naked. Fronds 

 lanceolate-ovate, to + 5 cm. long and 3 cm. broad, 3-pinnatifld at the 

 base, the main rachis slender, winged in the upper part by the decurrent 



