16 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 
Sw. Berl. Mag. 79, t. 3, f. 1 (1810).—CuHatHaAm Is_.: 
Wreck Bay, common in open country and on exposed rocks 
1700-2000 ft. (nos. 780-781). Further distr. Mex., W. Ind., 
northern S. Am. 
B. occidentale L. Sp. Pl. 1077 (1753); Rob. (1), 108.— 
ABINGDON IsL.: south side, common above 1000 ft. ALBE- 
MARLE Ist.: Tagus Cove, common in lava caverns at 2200 
ft. where the rocks are kept constantly moist from a seepage 
of water (no. 863); Villamil, in lava caverns, on the sides of 
moist cliffs, and in open woodland at 1350 ft. (no. 862). 
CHARLEs IsL.: in protected places around 1600 ft. (nos. 864- 
866). CHATHAM Ist.: Baur. DuNcAN IsL.: in protected 
places at 1250 ft. (no. 867). JAmes Ist.: James Bay, com- 
mon on moist shady rocks at 2150 ft. (nos. 868-869). Fur- 
ther distr. Mex., W. Ind., S. Am. 
Wars caudatum Itook. Sp, Fil il. 51 (1860); Rob: 1); 
108.—Gavapacos Ips.: Capt. Wood. Further distr. Mex., 
S. Am., Philippines. 
Ceropteris Link 
C. tartarea (Cav.) Link, Fil. Sp. 142 (1841). Acrosi- 
chum tartaraeum Cav. Desc. 242 (1802). Gymnogramme 
tartarea Desv. Berl. Mag. V. 305 (1811); Rob. (1), 109.— 
ALBEMARLE Ist.: Iguana Cove, Snodgrass and Heller; Tagus 
Cove, Snodgrass and Heller; Villamil, occasional on the floor 
of the crater at 2750 ft., form with very coriaceous fronds, 
(no. 893). BINDLOE IsL.: near steam jets in the interior of 
the island (no. 888). CHARLES ISsL.: occasional above 1400 
ft. CHaTHAM Ist.: Wreck Bay, fairly abundant in open 
grassy country above 1700 ft. (no. 889). Duncan IsL.: in 
moist shady places in vegetable mold at 1300 ft. (No. 890). 
James Ist.: James Bay, occasional in lava caverns at 900 ft. 
and in moist places at 2150 ft. (nos. 891-892). Further distr. 
Mex., W. Ind., S. Am., tropics of the Old World. 
Cheilanthes Sw. 
C. microphylla Sw. Syn. Fil. 127 (1806) ; Rob. (1), 108.— 
ABINGDON IsL.: occasional on rocks at 450 ft., common at 
