240 RoBINSON: PTERIDOPHYTA OF THE HAWAIIAN ISLANDS 
Gleichenia longissima Blume, Enum. Pl. 250. 1828. 
Mertensia pinnata Kunze, Anal. Pterid. 6. 1837. 
Mertensia excelsa J. Sm. Lond. Jour. Bot. 2: 381. 1843. 
Gleichenia glauca Hook. Sp. Fil. 1:4. 1844. 
Hicriopteris speciosa Presl, Epim. 27. 1849. 
TYPE LOCALITY: Java. 
DisTRIBuTION: China, Japan, Malaysia, Tropical Australia, 
and Polynesia. 
ILLUSTRATION: Hook. Sp. Fil. pl. 3B. 1844. 
SPECIMENS EXAMINED: Maui, Bailey C; Molokai, Hillebrand 
B; Oahu, Hillebrand B; Macrae B; Robinson sor V; 504 V; Kauai, 
Hiullebrand B, C. 
D. glauca is found in fruit somewhat rarely. Both the bipin- 
nate species are less common than D. linearis and grow at higher 
elevations. 
DICRANOPTERIS GLABRA (Brack.) Underw. Bull. Torrey Club 
34: 249. 1907 
Mertensia glabra Brack. Fil. U.S. Expl. Exp. 292. 1854- 
TYPE LOCALITY: Hawaiian Islands. 
DISTRIBUTION: Above 600 m. on wet mountain ote 
Hawaiian Islands. 
SPECIMENS EXAMINED: Oahu, Hillebrand B; Robinson 55 V; 
Kauai, Forbes 107 BM; Heller 2613 C; Hawaiian Islands, & 
Herb. Eaton C 
Dicranopteris emarginata (Brack.) comb. nov. 
Mertensia emarginata Brack. Fil. U. S. Expl. Exp. 297- 1854- 
TYPE LOCALITY: Hawaii. 
DISTRIBUTION: Open mountain ridges, Hawaiian Islands. 
ILLUsTRATIONS: Brack. Fil. U. S. Expl. Exp. pl. 42-f 
1854. 
SPECIMENS EXAMINED: Oahu, Robinson 40 
Islands, Hillebrand K; Wilkes Expedition C.; ex Herb. Ea 
Lindley C 
1b. 
V; Hawaiiat 
ton Ci 
DICRANOPTERIS LINEARIS (Burm.) Underw. Bull. Tortey Club 
34: 250. 1907 
Polypodium lineare Burm. Fl. Ind. 235. 1768. 
Polypodium dichotomum Thunb. FI. Jap. 338. 1784: 
