80 POLYPODIACE^E OF THE PHILIPPINE ISLANDS. 



Euasplenium. 



(7) A. loherianum Christ, Bull. Herb. Boissier 6(1898):152. Rhi- 

 zome small; stipe very short; fronds only 2 to 5, scarcely 10 cm. high; 

 rachis weak, flexuous, decumbent, pubescent with linear scales, base purple 

 or green, apex rooting; pinnae alternate, 12 to 18 on each side, very 

 remote, 3 mm. long, ovate, deeply crenate-dentate ; texture subfleshy; sori 

 oblong, early confluent and covering the under side of the pinnae. 



La Trinidad, Benguet, Loher 99, on limestone. 



(8) A. toppingianum Copeland. Rhizome creeping, chaffy; stipe 3 to 8 

 cm. high, the base brown and chaffy, upward becoming like the rachis, 

 green and glabrous; fronds 10 to 15 cm. high, 2 to 2.5 cm. broad, her- 

 baceous, glabrous, acuminate, apex not rooting, pinnate; about 6 pairs 

 of pinnae free but sessile, and as many more connected by a wing widening 

 toward the cleft apex; pinnae smooth, thin, oblong, obtuse, serrate-crenate, 

 acroscopic half of lower pinnae auricled at base; sori mostly not confluent, 

 straight and confined to the one side of the vein, or curved and even 

 horseshoe-shaped. 



Baguio, Topping 284, Elmer 5787. 



A. toppingianum var. mistum Copeland. Differs from the type in being 

 larger, with the teeth of the pinnae more rounded, and especially in the 

 lowest pair of pinnae, which are of more than twice the dimensions of 

 those above, and deeply incised. 



Baguio, with the type, Topping 194. 



(9) A. subnormale Copeland. Fronds solitary or few on a short, 

 creeping, terrestrial rhizome; stipe about two-fifths of the total height, 

 smooth except at the base, slender, seldom straight, dark and polished, 

 but shading into a green rachis with green lateral lines representing 

 wings; frond 4 to 9 cm. high, lanceolate-ovate, acute, apex not rooting, 

 pinnate; distinct pinnae about 6 pairs, 2 or 3 more pairs indicated by 

 clefts, the lowest smaller than or equalling the next above, crenate, mostly 

 trapezoid, irregular in shape, but the lower half of the pinnae always cut 

 away to the midrib at the base, the base of the acroscopic half parallel 

 to the rachis : sori 6 or less to the pinna, not confluent ; indusia narrow. 



Lamao River, Bataan Province, Copeland 236, 1395. 



(10) A. normale Don. Stipe 2 to 6 cm. long, tufted, wiry, blackish, 

 polished; frond 10 to 25 cm. long, 10 to 17 mm. broad, with very numerous 

 close-placed pinnae, the lower ones reduced and deflexed, the point obtuse, 

 the edge inciso-crenate, the upper side auricled and narrowed suddenly 

 at the base, the lower truncate in a straight line; texture herbaceous; 

 rachis glossy, nearly black; veins mostly once forked; sori in two unequal 

 parallel rows. 



Benguet, Loher, Elmer 6537. 



Madagascar to Japan. 



Christ inclines to regard this as a form of A. Trichomanes, to which 

 the Benguet plants are very close. This description is adapted to our 

 plant. 



