234 ROBINSON: PTERIDOPHYTA OF THE HAWAIIAN ISLANDS 
nean, usually achlorophyllous and nourished by an endophytic 
fungus. 
OPHIOGLOSSACEAE 
Characters of the order. 
ms blade and sporophy! both ternately compound; veins free. 1. Botrychium. 
eaf blade simple, sporophyl a Gieenone on veins reticulate. 
Plants terrestrial; leaf blades petiolat 2. Ophioglossum. 
Plants epiphytic; leaf blades ae 3. Ophioderma. 
1. BOTRYCHIUM Sw. Jour. Bot. Schrad. 18007: 110. 1801 
Terrestrial plants; rootstock short, fleshy, erect; roots clus- 
tered, fleshy; sterile leaves 1-3-pinnately compound or decom- 
pound; veins free; sporophyls ternately compound; sporangia 
separate, spherical, sessile, pinnately arranged. 
Type species: Osmunda Lunaria L. 
BotRYCHIUM SUBBIFOLIATUM Brack. Fil. U. S. Expl. Exp. 3!7- 
1854 
TYPE LocALity: Hawaii, District of Puna. 
DISTRIBUTION: On the ground in wet forests, Hawaiian Islands. 
ItLustrations: Brack. Fil. U. S. Expl. Exp. pl. 44- 1854- 
PLATE 18. 
SPECIMENS EXAMINED: Hawaii, District of Puna, Wilkes 
Expedition (type) N; Oahu, Lydgate B; Kauai, Forbes 262 BM; 
Wawra 2061 C; Remy 62 B; Hawaiian Islands, Baldwin 114 8, 
tN 
The sterile leaf is always asymmetrical, one of the basal pinnae 
arising above the other. 
2. OPHIOGLOSSUM L. Sp. Pl. 1062. 1753 
Terrestrial plants; rootstock erect, less than I cm. in height: 
roots fleshy; leaves glabrous; leafstalk fleshy, not articulate; vel" 
anastomosing, with occasional free included veinlets; sporophy? 
pedunculate spike, arising from the base of the expanded blade’ 
sporangia in two rows, coalescent. 
Type species: Ophioglossum vulgatum L. 
OPHIOGLOssUM CoNCINNUM Brack. Fil. U.S. Expl. Exp. 315: 1854 
jan 
TYPE LOCALITY: Sand hills, near Wailuku, Maui, Hawail 
Islands. 
