ROBINSON: PTERIDOPHYTA OF THE HawattANn IsLANDs 197 
PoLypopIuM HAALILIOLANUM Brack. Fil. U. S. Expl. Exp, 5. 
1854 
TYPE LocaLity: Hawaiian Islands. 
DISTRIBUTION: On tree trunks above 600 m. elevation, Hawai- 
ian Islands; rare. 
ILLustTRATION: Brack. Fil. U.S. Expl. Exp. pl. 7. f.4. 1854. 
SPECIMENS EXAMINED: Hawaii, Robinson 601 V; Oahu, Hille- 
brand B; Mann & Brigham 178 N; Wilkes Expedition N; Kauai, 
Lichtenthaler N; Hawaiian Islands, Baldwin 86 B; C; Hillebrand C. 
Hieronymus (Hedwigia 442: 86. 1905) reduces Polypodium 
Haaliliolanum to Polypodium subpinnatifidum Blume, but the 
type of the latter at Berlin has subpinnatifid lobes and acute 
sinuses, while the leaves of the Hawaiian plant are sinuato-crenate 
throughout. The sporangia of Polypodium Haaliliolanum are 
smooth, while those of Polypodium subpinnatifidum are setose. 
PoLypopium Sarrorpir Maxon, Am. Fern Jour. 2: 19. 1912 
Polypodium minimum Brack. Fil. U. S. Expl. Exp. 5. pl. 1. f. 3. 
1854. Not Aublet. 
Polypodium serrulatum var. lata Luerssen, in Wawra, Flora 58: 
422. 1875. 
Polypodium serrulatum Hilleb. Fl. Haw. Is. 553. 1888. Not Mett. 
TYPE LOCALITY: Oahu. 
DIsTRIBUTION: Common on trees above 600 m. elevation, 
Hawaiian Islands. 
ILLustRations: Brack. Fil. U. S. Expl. Exp. pl. 1. f. 3. 1854; 
Maxon, Am. Fern Jour. 2: 19. 1912. 
SPECIMENS EXAMINED: Hawaii, Lichtenthaler N; Robinson 600 
V; Oahu, Heller 2905 (type) N, (cotype) C; Mann & Brigham 
550 N; Robinson 521 V; Wilkes Expedition N; Kauai, Hillebrand 
123 B; Hawaiian Islands, Baldwin 85 B, C; Bishop 81 B; Johnson 
B; ex Herb. Mt. Holyoke College B; Wilkes Expedition C. 
PoLYPopIUM SARMENTOSUM Brack. Fil. U.S. Expl. Exp. 8. 1854 
Tyrer LocaLity: Hawaiian Islands. 
DISTRIBUTION: Common on rocks and decasred wood, Hawai- 
ian Islands. 
