Vor. I] STEWART—BOTANY OF THE GALAPAGOS ISLANDS 15 
PAGOS Ips.: acc. to Hook. & Bak. Syn. Fil. 220. Further 
distr. Mex., W. Ind., S. Am. 
A. Serra Langsd. & Fisch. Fil. 16, t. 16 (1810-1818) ; Rob. 
(1), 108—ALBEMARLE Ist.: Villamil, common on moist 
rocks in protected places at 1500 ft. and in similar situations 
at 3150 ft. (nos. 856-857). CHatTHaAm IsL.: ,Wreck Bay, 
abundant in a dense growth of Lycopodium clavatum and other 
ferns at 2050 ft. (no. 858). Duncan IsL.: common in a 
restricted area among rocks at 1300 ft. (no. 859). JAMEs 
Ist.: James Bay, occasional above 2000 ft. (no. 860). Fur- 
ther distr. Mex., W. Ind., S. Am., Africa. 
A. serratum L. Sp. Pl. 1079 (1753); Rob. (1), 108.— 
Gatapacos Ips.: Capts Wood. CHATHAM ISL.: acc. to 
Moore. Further distr. Mex., W. Ind., S. Am., Polynesia. 
A. sulcatum Lam. Ency. II. 308 (1786). <A. auritum Sw. 
Fl. Ind. Occ. 1616 (1806) ; Rob. (1),-106.—AxBinepon ISsL.: 
common on the south side of the mountain at 1950 ft. and to 
some extent lower down (no. 806). ALBEMARLE IsL.: Villa- 
mil, common on the trunks and branches of trees, 500-1300 ft., 
(no. 804). CHARLES IsL.: common on moist shady rocks at 
1000 ft. and on the branches of trees in protected places around 
1700 ft. (nos. 808-811). CHATHAM IsL.: Wreck Bay, fairly 
common on the branches of trees at 700 ft. (no. 805). INDE- 
FATIGABLE Is~t.: Academy Bay, common on the branches of 
trees above 600 ft., especially abundant on trees of Pisoma 
floribunda, (nos. 815-816). JAmeEs IsL.: James Bay, abund- 
ant in lava caverns at 1000 ft. and on the branches of trees 
above 2000 ft. (nos. 812-814). Further distr. Mex., W. Ind., 
S. Am. The Galapagos form of this species is considered a 
variety by some authors. 
Var. macilentum Moore, Ind. Fil. 115 (1859); Rob. (1), 
107.—Gavapacos Ips.: acc. to Moore. Further distr. Mex., 
W. Ind., S. Am., Old World. 
Blechnum L. 
B. blechnoides (Lag.) C. Chr. Ind. 151 (1905). Asplen- 
tum blechnoides Lag. Sw. Syn. 76 (1806). B. unilaterale 
