Asplenium.] FILICES. 609 
those of the upper portion of the frond inciso-serrate and auriculate as 
in $ of the preceding species; those of the lower pinnae deeply cut, even 
to the rhachis, at angles of 5—40°, into 5—10 lobes or segments, the 
latter being oblong, with 2—5 serratures at the apex, to cuneate-obovate 
and inciso-serrate in the upper third. Veins close and straight, excurrent 
in the serratures, flabellate in all larger lobes, 6—11 in the upper basal 
one, the anterior branches at angles of less than 10° until the last bi- 
fureation. Sori 2—4” long; in the larger pinnules both primary ones 
subparallel to the costule, and secondary ones irradiating in the larger 
segments; the anterior sorus of the larger segment often apparently di- 
plazoid on account of the close approximation of the two first veinlets. 
— Carruthers, in Fl. Vit. p. 353. — A. lashes Hook. in Sp. 
Fil. III, 171. — In one of my specimens the frond is truly tripinnate at 
the base 
var. — Frond smaller, bipinnate, the pinnules almost entire, 1!/2‘ or 
more in lengt 
from the southern slope of pea peas meg Maui! the typical form from 
from 
the top of Mt. Kaala, Oahu! an li au 
alona, Maui! (Lydg.). — This fern, oa Gidemieed hitherto from Ka’ ’*s meagre 
description, is not elsewhere, but gment. ave been assigned by 
competent pteridologists to A. nitidum, 8 to A. laserpitiifolium, Lam. In the 
largest specimen from W i the pinnules near the apex are rhombeo-ovate, 6” long, 
and subentire like those of the Himalaya form of A. nitidum; lower do 
cle and lengthen to the dimension and shape of Mettenius’s figure of t es 
i , only that the segments are more deeply cut and dentate o : 
while in the largest pinnae the pinnules are exactly like t of A. laserpitiifolium as 
int 
Dp 203, or lik 
between A. caudatum and - spathulinum. Color and glos specimen 
“os 5 a vii it te or A, caudatum, and Is hould have added this species to the ey 
m if it were not for. its close affinity with A. acuminatum. The yar. 8. 
reg cis git: t almost with equal right be transferred to the present one. 
C. Diplazium. Nos. 31—36. 
a. Polystichoid. Nos. 31—32. 
. A. arboreum, Willd. — Hook. Sp. Fil. IIT, 246. — Rhizome very 
pats nega in few dark lanceolate scales on the inyolute fronds. 
ip. crowded, weak, lurid-green or stramineous, naked, 6—8‘ long. ey a 
ply athe almost flaccid, ovate-oblong, 6—12’ & 4—6 
on aie side, all alternate or only the on 
stipitate (3), oblong-lanceolate, subfaleate, acute, 2—3!/2' X 1/o—1', 
shortly and i cut at the lower base, the upper half truncate, 
parallel with or verging on the rhachis, the edge notched or cut in 
9—12 subequal, hisatuves or deltoid, obtuse or somewhat acute lobules, the 
first upper one more deeply separated and protruding; all lobules sharply 
dentate. a Neuropteridis. Veins excurrent, rather prominent, only 
and, Flora of the Hawaiian ds 39 
