15 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th See. 



Sw. Bed. Mag. 79, t. 3, f. 1 (1810).— Chatham Isl. : 

 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. PI. 1077 (1753); Rob. (1), 108.— 

 Abingdon Isl. : south side, common above 1000 ft. Albe- 

 marle Isl. : 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 Isl.: Baur. Duncan Isl.: in protected 

 places at 1250 ft. (no. 867). James Isl.: James Bay, com- 

 mon on moist shady rocks at 2150 ft. (nos. 868-869). Fur- 

 ther distr. Mex., W. Ind., S. Am. 



Var. caudatum Hook. Sp. Fil. III. 51 (1860); Rob. (1), 

 108. — Galapagos Ids. : Capt. Wood. Further distr. Mex., 

 S. Am., Philippines. 



Ceropteris Link 



C. tartarea (Cav.) Link, Fil. Sp. 142 (1841). Acrosti- 

 chum tartaraeum Cav. Desc. 242 (1802). Gymnogramme 

 tartarea Desv. Berl. Mag. V. 305 (1811); Rob. (1), 109.— 



^Albemarle Isl. : 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 Isl.: occasional above 1400 

 ft. Chatham Isl. : 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 Isl. : 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 



