574 FILICES. [Aspidium. 
the middle ones linear-lanceolate, 3—8‘ & 1!/2—3/s‘, subsessile with a 
broadly truncate even-sided base, cut down almost to the rhachis into patent 
closely set oblong obtuse faintly crenate segments or lobes of 1!/2—2” 
in breadth, one or both basal segments larger, auriculate and generally 
deflected over the main rhachis. Veins pinnate with 5—11 pairs of simple 
veinlets, all free. Sori marginal, one to nearly every veinlet. Sporangia 
dark brown, glistening. Invol. thin and small, reniform, setose with mostly 
glandular hairlets. — The stipes holds a single central broad arcuate 
fibro-vasal band. — Lastrea hap Brack 1. ¢. p. 194. — Nephrodium 
pacers Hook. Sp. Fil. IV, 96. — Synops. Fil. p. 269. 
Ha i! Kohala range and Mauna Kea; Maui! Kaanapali; Kauai! Halemanu (Ku.); 
at eva ions of 4000--5000 ft. Nat. name: «Palapalai o Kaumaapua». — la 
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the basal secondary and tertiary veins ite generally opposite, as are the majority of 
= pinnae; but even the second or third inferior nerves or veins stand nearer the cost 
costule than their mates of the upper half, 
E. Lastrea, Bory. — Involucre cordate or reniform. Veinlets always 
free, the ak ones forking or pinnate. Two larger, round or oblong fib. 
vas. fase. along the sulcus and 1—5 smaller round ones along the convex 
part of the stipes. — Thelypteris and Arthrobotrys, Presl. 
11. A. filix-mas, Sw. var. parallelogrammum, Kze. — Caudex erect, 1'/2 ft. 
high and several inches thick. Stip. 8—18‘ long, pale brown, densely 
clothed below, as are the young shoots throughout, with thin dark brown 
narrow-lanceolate long-acuminate entire scales of 1—1!/2‘, which change 
higher up and on the rhachis to remotely dentate concolorous fibrils, the 
teeth longer and two- to several-pronged near the base. Frond polysti- 
choid, stiff, coriaceous to chartaceous, dark green, oblong-lanceolate, nat 
rowing below, 1'/2—3 ft. long, broadest at the middle, 8—12‘, pinnate, 
with aes apex » the rhac chis densely fibrillose or eek. _— 
its cells wavy, Sporangia with 13—15 ring joints. A saris ovoid, verrucose. 
Fib. vas. bands 7. — Nephrodium filix-mas, var. 3, Hook. in Sp. Fil. atts 
116. — Lastrea filix-mas, var. paleacea, Moore and Metten. — L. t 
Brack. 1. c. p. 195, pl. 27. 
