ROBINSON: PTERIDOPHYTA OCF THE HAWAIIAN IsLanps 593 
TYPE LOCALITY: Hawaii. 
DistTRIBUTION: High forests, Hawaiian Islands. 
SPECIMENS EXAMINED: Hawaii, Wilkes Expedition N ; Robinson 
208 V; 627 V; Maui, Bailey C; Lindley C; Robinson 374 V; 307 V; 
Oahu, Halerman 63 B; Kauai, Robinson 421 V. 
Wilkes’s specimen in the National Herbarium is labeled SDs 
nov.,’’ hence it is probably a cotype if not his type of Bracken- 
ridge’s Lastraea glabra. 
This is a much more graceful fern than Dryopteris nuda, which 
has been confused with it by some authors. 
DRYOPTERIS LATIFRONS (Brack.) Kuntze, Rev. Gen. Pl. 2: 813. 
1891 
Lastraea latifrons Brack. Fil. U.S. Expl. Exp. 196. 1854. 
Nephrodium latifrons Hooker, Sp. Fil. 4: 138. 1862. 
Aspidium latifrons Mann, Proc. Am. Acad. 7: 217. 1868. 
TYPE LOCALITY: Hawaiian Islands. 
DISTRIBUTION: Common at elevations of 600—1,200 m., Hawai- 
ian Islands. . 
SPECIMENS EXAMINED: Maui, Bailey C; Lanai, Hillebrand B: 
Molokai, Hillebrand B; Oahu, Forbes 1082 BM ; Heller 2899 C, N; 
Lichtenthaler N; Mann & Brigham 189, 195, 196 N; Macrae C: 
Robinson 93 V; 172 V; 182 V; Wilkes Expedition N; Hawaiian 
Islands, Baldwin 69 B, C, N: 129 B; Gaudichaud B; Van Ingen 
C; ex herb. Kew C; ex Herb. John Donnell Smith 623 N; 624 N. 
Dryopteris parvula sp. nov. 
Aspidium glabrum var. pusillum Hilleb. Fl. Haw. Is. 577. 1888. 
Not Dryopteris pusilla (Mett.) Kuntze. 
Caudex short, oblique, covered with linear-lanceolate, light 
brown scales 7-10 mm. long; leafstalk slender, 6-7 cm. long, 
grooved ventrally; blade chartaceous, ovate-oblong, 12-20 cm. 
long, bipinnate; lobes of pinnae spinulose, marginal cells trans- 
parent; both surfaces of blade and stipe covered with globular 
glands; veins free, simple or once forking; sori borne dorsally on 
the veins; indusium reniform; sporangia biconvex; spores reni- 
form, rugose. 
TYPE LOCALITY: Kauai, at 1,600—2,000 m. elevation. 
DIstrIBUTION: Hawaiian Islands. 
