68 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4TH SER. 
Bay, around habitations at 900 ft. Probably introduced. 
Widely distributed. 
Coronopus Ludw. 
C. didymus (L.) Sm. Fl. Brit. II. 691 (1800). Lepidium 
didymum L. Mant. 92 (1767). Senebiera pinnatifida DC. 
Mem: Soc. Elist: Nat:. Par. VII. 144,t. 9 (1799); Rob. (i; 
146.—ALBEMARLE Iszt.: Villamil, abundant in open grassy 
country around 1300 ft. (no. 1540). James Isx.: Darwin. 
Widely distributed. 
Lepidium L. 
L. virginicum L. Sp. Pl. 645 (1753).—Cuatuam Ist.: 
Wreck Bay, around habitations, probably introduced, (no. 
1538). Widely distributed. 
Raphanus L. 
R. sativus L. Sp. Pl. ed. 2, 935 (1763); Rob. (1), 146.— 
Cuar.es Ist.: Andersson. CHATHAM IsL.: Wreck Bay, in 
cultivated ground. A species concerning whose introduction 
there can be but little doubt, (no. 1539). Widely distributed 
through cultivation. 
CRASSULACEAE 
Crassuvia Comm. 
C. floripendia Comm. ex. Lam. Encycl. II. 141 (1786). 
Bryophyllum calycinum Salisb. Parad. Lond. t. 3 (1806).— 
CuatHam Ist.: Wreck Bay, around habitations. Probably 
introduced. Further distr. U. S., Mex., W. Ind., S. Am. 
LEGUMINOSAE 
Acacia Willd. 
A. farnesiana (L.) Willd. Sp. TV. 1083 (1806). Mimosa 
farnesiana L. Sp. Pl. 521 (1753). A. farnesiana Willd. 1. c. ; 
Rob. (1), 147.—A.LsBeMar_e Ist.: Darwin; Macrae. INDE- 
FATIGABLE Isu.: north side, small trees at 250 ft. (no. 1541). 
Further distr. Mex., S. Am: 
A. macracantha H. & B. in Willd. Sp. IV. 1080 (1806) ; 
Rob. (1), 147.—A LsBEmar_eE IsL.: Tagus Cove, small trees 
and bushes in tufaceous soil, lower parts, (no. 1544); Villa- 
