572 FILICES, | Aspidium. 
8 var. exaltatum. — Frond pale, with a very broad and flat rhachis. 
Pinnae slightly crenate, narrowing at the base. Sori only in two rows 
rama = a as in Teipiv pete almost blac 
woods s plant Mr. eicnets writes that it grows to the 
height ven 12 et witbaeh eeiasteu, "aaecret, what proportion of the measure falls to 
caudex 
A: var. Aepanperatin — Whole frond with stipes only 3—15‘ high. 
ae %/4—2‘ long, entire or slightly crenate, truncate. Main veins in 
ial eae with 2—4 pairs of veinlets, only one or two branches anasto- 
mosing irregularly, almost in the manner of Cyrtomium, in larger fronds 
the venation distinctly goniopteroid. Sori scattering, chiefly near the midribs 
of the pinnae. — A. Boydiae, Eaton, in Bull. Torrey Club, N. Y. VI, § 361. 
by the ome ofas ore in Koolau, Oahu! A larger —— on of pi 
a short auricle to the fe forsg ase. The smaller the arity the 
greater he ist oy posted of anadromous ae. 
7, A. truncatum, Gand. ies A baa p. 333, tab. 10 (in tabula). — 
Caudex erect. Stip. stramineous, 8—12‘ long, slightly scaly at the base 
only. Frond thin chartaceous, bright green, glabrous or with a few minute 
pale scales along the rhachides, oblong-lanceolate, 1'/2—2'/2 ft. long, 
pinnate with 16—24 pinnae and a pinnatifid apex, the 2 or 3 lowest 
Pin 
S 
@ 
= 
ic} 
a 
g 
pinnae often shortened, sometimes dwarfed. Pinnae 5 sient, linear-lan- 
oot ait’ x S/a— 11a! , subsessile or shortly stipitate, with an even 
ed truncate base, cut into broad oblong rounded or truncate lobes 
ma narrow sinuses. Veins inconspicuous, pinnate with 7—10 pairs of 
veinlets, only the one or two lowest uniting with the corresponding ones 
of the next lobes. Sori on the middle of nearly every veinlet except 
the apical ones, 5—8 on a side, forming two rows which are equidistant 
from each other and from those of the next lobules. Invol. pale, thin, 
evanescent, cordate. — Metten. Aspid. p. 106. — LO truncatum, 
Ga 
ud. |. ec. in the text. — sony truncatum, Presl. Synops. Fil. 
p. 294. — N. Hudsonianum, Brack. |. ¢. p. 189, Bh 25. — pt Hud- 
sonianum, Mann, Enum. no 
In the lower and middle fo: ae y a islands, not uncommon. Nat. name: «Laukahi. 
The range of the species, as given in the Synopsis — Polynesia, ‘trai asia: Ceylon, 
N. India — is probably too large. mains forms from Upolu only differ in ha ving th 
oe nearer to the costule. N. ensoruwm, Thw » fr om pa is also much ake | ours 
8an g veinlets and a fed pi but chp abruptum. 
4 free 0 
omos 
Pr., pietonaee darker, pabilahes? frond and 5—7 uniting veinlets against 3 0. ones, 
would not appear to belong here. Forms of the present species are avid to in the 
Sp. Fil. under Nephrod. patens = N. extensum. — Only the lowest short pinnae are 
subopposite; 4—5 pinnae anadro: all others catadromous from the base to the 
apex. Tertiary veins neon all pasate except at the apex. 
- A. terminans, Wall. — Stip. dark stramineous. Frond thin charta 
» glabrous, bright . oblong, 1—2 ft., long, pinnate throughout, 
