ROBINSON: PTERIDOPHYTA OF THE HAWAIIAN IsLANDS 217 
Asplenium rhipidoneuron nom. nov. 
Asplenium furcatum Hilleb. Fl. Haw. Is. 604. 1888. Not 
Thunb. 
TYPE LOCALITY: Haleakala, Maui. 
DIsTRIBUTION: Hawaiian Islands. 
ILLUSTRATION: Hook. & Grev. Ic. Fil. pl. 189. 1831. 
SPECIMENS EXAMINED: Hawaii, Baldwin 50 B, C, N; Wilkes 
Expedition N; Maui, Bailey C; Baldwin 44 (type) B, C, N; Robin- 
son 353 V; 302 V; 7960 V; Wilkes Expedition N; Oahu, Mann & 
Brigham 261 N; Wilkes Expedition N ; Kauai, Forbes 58 BM; Heller 
2872 C, N; Van Ingen C; Hawaiian Islands, Baldwin 49 C; Wilkes 
Expedition C. 
A. rhipidoneuron may be separated into two forms. 
Pinnae under 4 cm. long, rhombic. 
Pinnae 6-15 cm. long, acuminate. 
This will scarcely separate them as two species, but it is 
interesting as it suggests the possible crossing of A. lobulatum 
and A. cuneatum. 
ASPLENIUM INsITICcCIUM Brack. Fil. U. S. Expl. Exp. 161. 1854 
Asplenium cristatum Brack. Fil. U. S. Expl. Exp. 163. 1854. 
Not Lam. 
TYPE LocaLity: Hawaiian Is., in forests. 
DistTRIBUTION: Hawaiian Is., Philippine Is., New Caledonia. 
ILLUSTRATION: Brack. Fil. U. S. Expl. Exp. pl. 22. f.2. 1854. 
SPECIMENS EXAMINED: Hawaii, Wilkes Expedition N; Mann 
& Brigham N; Maui, Bailey C; Hillebrand B; Lichienthaler N; 
Waiopua, Lichtenthaler N; Oahu, Baldwin B; Forbes BM; Heller 
2310 C, N: Hillebrand B; Nuuanu, Robinson 142 V; Hillebrand B; 
Hawaiian Is., Baldwin 41 C; 43 C, N; Wilkes Expedition N; ex 
Herb. John Donnell Smith N. 
A. insiticium Brack. is a more delicate fern than A. lobulatum. 
The following specimens are diplazioid: Asplenium insiticium 
grandipinnatum Hillebrand B; Asplenium insiticium pseudoniti- 
dum Hillebrand B. 
