ROBINSON: PTERIDOPHYTA OF THE HAWAIIAN IsLANps 601 
situation upon the rocks, a theory which seems the more tenable 
from his statement that a corresponding form of Dryopteris 
cyatheoides is associated with this variety of D. stegnogrammoides 
in such localities. 
DRYOPTERIS TRUNCATA (Poir.) Kuntze, Rev. Gen. Pl. 2: 814. 
1891 
Polystichum truncatum Gaud. Voy. Freyc. Bot. 332. pl. ro. 1828. 
Nephrodium truncatum Presl, Tent. Pterid. 81. 1836. 
Nephrodium Hudsonianum Brack. U. S. Expl. Exp. 189. pl. 25. 
1854. 
Aspidium Hudsonianum Mann, Proc. Am. Acad. 72 317. 18G7. 
TYPE LocaLity: Brazil. 
DistTRIBUTION: Malaysia, Polynesia, Ceylon, Northern India, 
Brazil. 
ILLUSTRATIONS: Gaud. Voy. Freyc. Bot. pl. 10. 1828; Brack. 
Fil. U.S. Expl. Exp. pl. 25. 1854 
SPECIMENS EXAMINED: Hawaii, Wilkes Expedition N; Oahu, 
Heller 2334 C, N; Mann & Brigham N; Robinson 152 V; 192 V; 
522 V; 523 V; Safford 869 N; 870 N; Maui, Bailey C; Kauai, 
Heller 2843 C, N; Hillebrand B; Hawaiian Islands, Baldwin 64 B; 
C; 65 B; (Baldwin) V; Gaudichaud B. 
Poiret gives the habitat of Dryopteris truncata as Brazil. 
Baker (Syn. Fil. 295. 1874) gives a range of distribution through 
the subtropics, which Christensen follows. The representation of 
this genus in the herbarium of the New York Botanical Garden 
does not indicate that this is so cosmopolitan a species. 
