ROBINSON: PTERIDOPHYTA OF THE HAWAIIAN IsLANps 203 
late; blades pinnate to quadripinnate; veins free: sori roundish, 
dorsal upon the veins; indusium centrally peltate, orbicular. 
Type species: Polypodium Lonchitis L. 
Leaves tripinnate, ovate-lanceolate, smooth or s slightly tomentose. P. carvifolium. 
Leaves bipinnate; stipe and rachis densely covered with linear- , 
lanceolate scales. 
Pinnae 1.5-3 cm. apart, sharply aristate. P. haleakalense. 
Pinnae crowded, margins entire or nearly so. P. Hillebrandii. 
POLYSTICHUM CARVIFOLIUM (Kunze) C. Chr. Ind. Fil. 70. 1905 
Polystichum contifolium J. Sm. Jour. Bot. Hook. 3: 413. 1841. 
Not Pres ‘ 
Aspidium curvifolium Kunze, Bot. Zeit. 6: 283. 1848. 
Aspidium aristatum Sw. var. trots: Wall.; Hook. Sp. Fil. 4: 
27. 5868; 
Dryopteris coniifolia Underw. in Heller, Minn. Bot. Stud. 1: 778. 
1897. 
TYPE LOCALITY: Philippine Islands. 
DIsTRIBUTION: High plateaus, Soc Jape, Polynesia, Ha- 
waiian Islands, Australia. 
SPECIMENS EXAMINED: Heller 2817 C; Baldwin 62 C. 
The habit, coriaceous texture, and aristate pinnae of this plant 
place it in Polystichum rather than in Dryopteris. The indusia 
are sometimes reniform-orbicular, sometimes peltate, on the same 
leaf. It is very different from the Japanese Polystichum aristatum 
(Forster) Presl, in rootstock, texture, and the division of the leaf. 
POLYSTICHUM HALEAKALENSE Brack. Fil. U. S. Expl. Exp. 204. 
1854 
Aspidium haleakalense Mann, Proc. Am. Acad. 7: 216. 1867. 
Aspidium aculeatum var. Braunn Hilleb. Fl. Haw. Is. 568. 1888. 
Not Swartz. 
Tyrer LocaLity: Region of Sophora, Mauna Kea, Hawaii. 
DISTRIBUTION: In forests at altitudes of 1,800-2,700 m., 
Hawaiian Islands. 
ILLUSTRATION: Brack. Fil. U. 5. Expl. Exp. pl. 28. 1854. 
- SPECIMENS EXAMINED: Hawaii, Wilkes Expedition N; Maui, 
Lichtenthaler N; Finsch 45 B; Lydgate B; Lydgate & Baldwin B; 
Mann & Brigham 481 N; Mann B; ex Herb. Mt. Holyoke 
College C; Oahu, Macrae B; Hawaiian Islands, Baldwin 61 C, 
N; ex Herb. John Donnell Smith N. | 
