96 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH Ser. 
(no, 1914). ALBEMARLE IsL.: Cowley Bay, common in wood- 
land above 2000 ft.; Iguana Cove, abundant on side of cliff 
above the cove; Tagus Cove, Snodgrass and Heller; Villamil, 
common in the moist region above 400 ft. and on the rim of 
the crater at 3150 ft. The specimens from the rim of the crater 
have smaller leaves than do the specimens collected lower 
down, (nos. 1915, 1917-1919). CuHartes IsL.: occasional 
around 1700 ft. CHatTuHam Isi.: Wreck Bay, fairly abundant 
in the grassy region above 900 ft. during the rainy season 
(nos. 1920-1921). Duncan IsL.: occasional in moist shady 
places among rocks at 1300 ft. (no. 1922). James IsL.: James 
Bay, Snodgrass and Heller. NaArsorouGH IsL.: north and 
south sides, Snodgrass and Heller. Further distr. S. U. S., 
Mex., W. Ind., northern S. Am. 
Ricinus L. 
R, communis. Sp. Pl 1007 (1753); Rob. (1),, 170:— 
CHARLES IsL.: Andersson. CHATHAM Iszt.: Wreck Bay, 
around habitations, probably introduced. Widely distributed. 
CALLITRICHACEAE 
Callitriche L. 
C. sp. Wolf, (1), 284; Rob. (1), 170.—Cuartes IsL.: ina 
brook near the hacienda, according to Wolf. Probably around 
1000 ft. elevation. 
CELASTRACEAE 
Maytenus Feuill. 
M. obovata Hook. f. (3), 230; Rob. (1), 170.—ALBEMARLE 
Ist.: Cowley Bay, occasional bushes near the beach; Elizabeth 
Bay, Snodgrass and Heller; Iguana Cove, Snodgrass and 
Heller; Tagus Cove, common bushes on the lower parts and 
on the sides of the mountain, occasional at 4000 ft.; Villamil, 
common bushes below 300 ft. (no. 1928). BArrineTon IsL.: 
low bushes in the vicinity of the shore (no. 1925). CHARLES 
IsL.: common bushes in the vicinity of the shore, occasional 
as high as 1000 ft. The specimens from around the upper limit 
of distribution have much larger leaves than do the specimens 
taken near the shore, (nos. 1925-1926). CHATHAM ISsL.: 
