ROBINSON: PTERIDOPHYTA OF THE HAWAIIAN IsLANDS 227 
“Sadleria cyatheoides Kaulf. The plants confused under this name’ 
by Brackenridge, Hillebrand, and most later writers form a distinct 
species, here named for Hillebrand, since he has most fully de- 
scribed it. 
This species is one of the first to gain a foothold upon the lava 
in the floors of the old craters and is very resistant to dry winds 
on exposed bluffs. 
SADLERIA POLYSTICHOIDES (Brack.) Heller, Minn. Bot. 
Stud. 1: 788. 1897 
Blechnum squarrosum Gaud. Voy. Bonite Bot. pl. 2. f.1,6. 1846- 
49. Without description. 
Blechnum polystichoides Brack. Fil. U. S. Expl. Exp. 134. 1854. 
Sadleria squarrosa Hilleb. Fl. Haw. Is. 582. 1888. 
TYPE LocaALity: Hawaiian Islands. 
DIsTRIBUTION: In forests on lower slopes of mountains, 
Hawaiian Islands. 
ILLUSTRATIONS: Gaud. Voy. Bonite Bot. pl. 2. f. 1,6. 1846- 
9. 
SPECIMENS EXAMINED: Hawaii, Lichtenthaler N; Wilkes Expe- 
dition N; Oahu, Forbes BM; Hillebrand B; Lydgate B; Heller 2392 
C, N; Molokai, Hillebrand B; Kauai, Forbes 216 BM; Hawatian 
Islands, Gaudichaud B; Baldwin 25 B, C, N. 
Sadleria unisora (Baker) comb. nov. 
Polypodium unisorum Baker; Hook. & Bak. Syn. Fil. 307. 1867. 
Gymnogramme sadlerioides Underw. in igre Minn. Bot. Stud. 1: 
781. 18097. 
Sadleria squarrosa var. depourivait Hilleb. Fl. Haw. Is. 583. 
Type LocaLity: Hawaiian Islands. 
DISTRIBUTION: On Sain & walls of high plateaus, Hawaiian 
Islands. 
ILLUSTRATIONS: Underw. in Heller, Minn. Bot. Stud. 1: pl. 43. 
1897. PLATE 12. 
SPECIMENS EXAMINED: Kauai, Hillebrand B; Forbes 445 BM; 
Heller 2863 C; N. . ; 
This is undoubtedly a valid species, rather than an ecological 
“variety” of S. polystichoides, as it has been termed by Hillebrand 
(Hilleb. Fl. Haw. Is. 583. 1888), for true S. polystichoides grows in 
1888. 
