Lindsaya.] FILICES. 621 
8 var. — Sori intra- marginal. 
Oahu! Makalena; W. Maui! Kaanapali. 
3. L. erecta, Hook. I. c. — Caudex as before. Stip. sparingly palea- 
ceous at the base with a few thin and pale scales, otherwise naked, 5—8‘ 
long, purplish - brown, glossy. Frond membranous, lanceolate, 12—14‘ long, 
pinnate, the lowest pinnae as long as the middle ones or a little shorter. 
Pinnae 15—25, rather distant, lanceolate as in no.2, sharply auriculate, some- 
what obtuse. Veins prominent in two sets of areoles along a flexuose costa, 
Sori 10—20 to a pinna, distinctly intra-marginal, transverse or oblique, 
1'/2—2" long, but near the base often confluent and 4—5“ long. Invol. 
straightish, oblong, its free margin falling considerably short of the edge 
of the frond. — Diellia erecta, Brack. 1. ¢. pl. 31, fig. 2. 
E. and Maui! 3000—4000 ft. 
The distinctive characters of the three preceding species mark extreme forms which 
ually approach each other. 
4. L. centifolia, sp. n. — Frond lanceolate, narrowing below, 8—12* 
long, 3—4’ broad at the middle, herbaceous, with a dark-purple glossy 
rhachis, simply pinnate. Pinnae very numerous, 70—90 on a side, closely 
imbricate with their bases and concealing the rhachis in front, linear, 
horizontal, 11/2 across at the base, 1/2" at the middle, subentire at the 
apex, shallowly notched with deltoid or obliquely truncate crenatures, 
sessile, the middle ones with a cordate nearly equilateral base, the upper 
ones with an auriculate superior and narrow inferior base. Veins at very 
acute angles, simple, expanding at the apex into one or two transverse 
horns for a receptacle, those of the upper auricle and next crenature only 
forking, and two fertile fork - branches sometimes anastomosing with their 
horns. Sori submarginal, 1/2", in the auricle often confluent. Invol. even 
with the margin of the crenature. — Lower stipes wanting. 
Kauai! Halemanu (Kn.). 
5. L. laciniata, sp. n. — Frond lanceolate, narrowing below, 2—2'/2 ft. 
long, 4—9‘ broad, light green, membranous, sprinkled underneath with 
short scattering blackish hairlets, pinnate, the lowest pinnae deflected. 
i i Pinnae 30—40, the middle ones deltoid- 
with a subcordate, in both halves truncate base, 
and arcuately auricled, subparallel to the rhachi 
and receding (cut in the upper pinnae), both sides irregularly cut from 
1/3 2/3 of their depth at angles of 60—80° into deltoid to lanceolate, rather 
obtuse, wavy laciniae — those of the middle portion and lower half longest 
— which are separated by broad sinuses. Veins distinct, starting from the 
the segments with a sweeping curve 
(nervatio Neuropteridis), anastomosing on the disk, the leading vein of the 
s, the lower rounded 0 
