204 RoBINSON: PTERIDOPHYTA OF THE HAWAIIAN ISLANDS 
PoLystTicHuM HILLEBRANDII Carruth. in Seem. Fl. Vit. 358. 
1873 ; 
Aspidium Hillebrandi Hilleb. Fl. Haw. Is. 568. 1888. 
TYPE LOCALITY: Hawaiian Islands. 
DISTRIBUTION: In forests at altitudes of 1,500-1,800 m., 
Hawaiian Islands. 
SPECIMENS EXAMINED: Maui, Bailey C; Baldwin B, C, V! 
Lydgate B; Hawaiian Islands, Baldwin 60 B, C. 
23. CYRTOMIUM Presl, Tent. Pterid. 86. 1836 
Rootstock short; leaves clustered, pinnate, somewhat coriace- 
ous; veins anastomosing; sori globose, dorsal upon free included 
‘ veinlets or upon connecting veins; indusium peltate. 
Type species: Cyrtomium caryotideum (Wall.) Presl. 
Leaves less than 15 cm. long, with a single row of areolae on either 
side of the midvein. C. Boydiae. 
Leaves more than 15 cm. long, with several areolae between midrib 3 
and margin. C. caryotideum. 
Cyrtomium Boydiae (D. C. Eaton) comb. nov. 
Aspidium Boydiae D. C. Eaton, Bull. Torrey Club 6: 361. 1879. — 
Aspidium cyatheoides var. depauperatum Hilleb. FI. Haw. Is. 572. — 
1888. 4 
Dryopteris cyatheoides C. Chr. Ind. Fil. 66. 1906. 7 
TYPE LOCALITY: Oahu. e, 
DISTRIBUTION: On rocky ledges, along streams, Hawaiian 3 
Islands. * 
ILLUSTRATION: PLATE Io. z 
SPECIMENS EXAMINED: Hawaii, Hillebrand B; Maui, Baldwin . 
C, V; Oahu, Forbes BM; Rock V. . 
; 
: 
CyRTOMIUM CARYOTIDEUM (Wall.) Presl, Tent. Pterid. 86. 1836 4 
Aspidium caryotideum Wall. Cat. no. 376. 1828. 
Dryopteris caryotidea Underw. in Heller, Minn. Bot. Stud. 1: 77% 
1897. 4 
TYPE LocaLity: Nepal. - 
DiIsTRIBUTION: In forests, India, pes Hawaiian Islands. 
ILLusTRATIONS: Hook. & Grey. Ic. Fil. pl. 69. 1826; Presl, 
Tent. Pterid. pl. 2. f. 12. 1836; Brack. Fil. U. S. Expl. Exp- # 
16. 1854; Hook. Garden Ferns pl. 13. 1862. 
