614 FILICES. [Asplenium. 
phegopteroid, membranous, dull-green, pinnate, oblong-lanceolate, 1!/2—3'/2 
ft. long, narrowing below into a set of much reduced pinnae, the lowest 
auriculaeform, 'jz—1‘ long and 1—2‘ distant from the one next above; 
the rhachis pte a proliferous with one or several gemmae in its upper 
portion. Pinnae mostly opposite in 20—40 pairs, horizontally patent, 
linear-lanceolate, acute, none contracting toward ase, the middle 
ones 5—6‘ >< 1/2—11/2‘, all subsessile with a truncate even-sided base 
and cut to '/2 or 8/4 or more into oblong obtuse subfalcate denticulate 
nearly equal lobes, which are 2—3” broad, mg narrow sinuses between 
hy Nervatio Pecopteridis. Veins excurrent, ee and straight, 
ith 5 p 
each veinlet, short, less than 1”, all alee to the siti half of the 
veinlet and touching the margin; the first anterior generally diplazoid, 
_— thin, fugacious. Spores even or echinate. 
olokai! Kalae and guich of Halawa; Hawaii! Kohala range (lower pinnae less 
ety, Maui! Hamakua (very narrow sae deeply divided pinnae, only 4—5” broad). — 
In many specimens the pinnae, segments and nerves are so regularly opposite in pairs 
vetart 
that the phegopteroid habitus of the frond can hardly be madi neipal 
characters which to distinguish this — a much stouter plant — the preceding 
species must rest o e caudex the scales; as to a se igi Shenae they are 
subject to much variation that it would be difficult mens to one 
or the other species on their strength alone. The typica ne was nstieoua on geet kai, 
var, depauperata. — Rhizome short. Stip. crowded, about 2‘ long, 
lurid- brown, paleaceous at the base with few thin reddish almost trans- 
parent capillary dentate or laciniate scales about 2” in length. Frond 
phegopteroid, membranous, dark green, oblong-lanceolate, scarcely nar- 
rowing below, 5—-7’  2—2!/2‘, pinnate with 9—11 pairs of pinnae 
besides the pinnatifid apex, the lower ones on stalks of less than 1 and 
generally opposite, linear-lanceolate, with even-sided truncate base, only 
2—3”" broad, cut into obtuse or obtusely faleate segments. Sori short, 
eonfined to ine first anterior veinlets and nearly all diplazoid. Spores 
papillate. A gemma near the apex of one frond. — A. grammitoides, 
Hook. in Sp. pe III, 228, as to the Hawaiian oy 
Hawaii! in rocky beds of streams near Hilo (Baldw.) and Laupahoehoe (Lydg.). A 
arved form of «, parallel to starved forms of Aspidium a 5 ideum and Phegopteris 
a 
rpa. 
D. Athyrium. Nos. 37—39. 
a. Cyatheoid, prbiitecdat: Spores tuberculate. No. 37. 
STA, —o Brack. Fil. U.S. E. E. p. 172. 
Formae pinnat 
Rhizome ity Caste Stip. loosely crowded, 1 ft. long, sparsely 
paleaceous at the base with linear-lanceolate denticulate brown opaque 
seales of 4—6", their cells all rectangular, prosenchymatous with thick 
dark walls and narrow cavities (paleae clathratae), but soon naked, grooved, 
