550 FILICES. [Gymnogramme. 
situations the conti particularly ¢ the upper face, are smaller, almost reduced to the 
ciliae which appear stellate, and quite sparse, except at the rib and margin gon oe 
from high dn wtiecs veahiblt plank: raion on the stipes like the plants from. Madeira 
5. A. gorgoneum, Kaulf. Enum. Fil. p.63. — Rhizome short creeping, 
woody, !/4—t/2‘ thick, densely clothed at the end with long (1/2—1‘) and 
stiff linear-lanceolate entire dark-brown scales. Stip. closely set near the 
end of the rhizome, stiff, 1—2’ long, eases ee below the 
joint. Barren fronds obovate -lanceolate, 9— 26’ >< 2—3‘, shortly acuminate, 
gradually narrowing below into the winged stipes, chartaceous, with attenuate 
margin, glabrous. Veins rather distinct, nearly vertical, parallel, simple 
or once or twice forking, the branchlets rarely anastomosing lower down, 
but all united at the apex by a straight intramarginal nerve. Fertile 
fronds smaller and narrower, 6—12‘ >< #/4—1"/2‘, on much longer margined 
stalks of 6—14'. Five fib. vas. Fest — Hook. Sp. Fil. V, 254. — Synops. 
Fil. p. 416. — Brack. 1. c. p. 74. — Olfersia gorgonea, Presl. — Aconiopteris 
obtusa, Fée. — In the young ae the more distant veins anastomose by 
broad intramarginal arches. 
On the roots of trees and rotten trunks; all islands. Is also a native of Tahiti. 
var. — Frond smaller, 4—10’ long, coriaceous, obtuse. Most veins 
ending free with tumid apices; only few distinctly anastomosing. 
Kauai! Halemanu (Kn.). 
6. A, reticulatum, Kaulf. 1. c. p. 64. — Caudex prostrate, 4—6’ long 
and !/s—1/2‘ thick, densely eipaie’s with ferruginous lanceolate fimbriate 
or laciniate scales of about 1‘ in length. Stip. confined to the apex, dark 
brown, paleaceous at the Saecbic base. Barren fronds pale, coriaceous, 
glabrous, gi gt ti 8—16‘ X 1—2’, obtuse, cuneate at the base, on 
k . Veins (nervy. Doodyae) obscure, anastomosing irregularly 
in 3 or 4 ce of narrow elongate areolae without appendages, their ends 
mostly free and tumid. Fertile fronds smaller, 6—10 > %/4—1!/«‘, on 
longer stalks of 5—10‘. Three or five fib. vas. fase. — Hook. Sp. Fil. V, 267. 
— Synops. Fil. p. 421. — Brack. |. ¢. p. 81. — Elaphoglossum reticulatum, 
Gaud. Bot. Bon. tab. 79. — Hymenodium reticulatum, Presl, Epimel. p. 176. 
— A, crassifolium, Gaud, Bot. Freye. p, 303. — Hymenodium crassifol. Fée, 
Acrost. p. 94, tab, 53. 
cd 
All islands; rather common, on trunks and rocks. Is not known from elsewhere. 
6. GYMNOGRAMME, Desy. 
Sporangia occupying the veins over the under surface of the frond in 
linear or linear-oblong, simple or forked sori, eceptacle or involucre. 
— Ferns of varied forms and habits, with eek ‘faked or anastomosing 
veins ; chiefly tropical. 
1. G. Javanica, Bl. Fil. Javan. p. 95, tab. 41. — Rhizome creeping. 
Stip. 1—3 ft. long, naked, glossy, stramineous, Frond phegopteroid, 1—3 ft. 
