148 CALIFORNIA ACADEMY OF SCIENCES [Proc. 4th Ser. 



IsL. : Basso Point, fruiting in February. Indefatigable Isl. : 

 southeast side, bushes on the beach. Widely distributed in 

 warm countries. 



COMPOSITAE 

 Acanthospermuni Schrank. 

 A. lecocarpoides Rob. & Greenm. (1), 141, 146; Rob. (1), 

 208. — Chatham Isl. : Sappho Cove, common bushes 3-4 ft. 

 high in woodland at 800 ft. Except for the presence of spines 

 on the achenes the specimens from this island are more like 

 Lecocarpus foliosus than an Acanthospermum, (no. 700). 

 Gardner Isl. (near Hood Isl.) : common bushes 2 ft. high. 

 Some of the specimens from this island have some of the leaves 

 deeply cut, as do the specimens from Chatham Isl., while others 

 have them shallowly pinnatifid, as described by Rob. & Greenm., 

 1. c, from specimens taken on the adjacent Hood Island, (no. 

 701). Hood Isl. : Baur; Snodgrass and Heller. Endemic. 



A. microcarpum Rob. ( 1 ) , 208. — Charles Isl. : Snodgrass 

 and Heller. Endemic. 



Ageratum L. 



A. conyzoides L. Sp. PI. 839 (1753). A. latifolium Hemsl. 

 Biolog. Cent.-Am. Bot. II. 82 (1881) ; Rob. (1), 209.— Albe- 

 marle Isl. : Villamil, common at 1800 ft. and on the south- 

 east rim of the crater at 3150 ft. (no. 702). Charles Isl.: 

 occasional, 1250-1550 ft, (nos. 703-705). Chatham Isl.: 

 Wreck Bay, fairly abundant in the open grassy country around 

 1700 ft. (no. 706). Further distr. Costa Rica. 



Ambrosia L. 

 A. artemisiaefolia L. Sp. PI. 988 (1753). — Charles Isl.: 

 abundant in a restricted area in the open bushy country at 1000 

 ft. (no. 708). Widely distributed. 



Aplopappus Cass. 



A. lanatus Hook. f. (3), 215; Rob. (1), 209.— Galapagos 

 Ids. : Du Petit-Thouars. Endemic. 



Baccharis L. 



B. pilularis DC. Prodr. V. 407 (1836); Rob. (1), 209.— 

 Charles Isl.: Edmonston. Further distr. Pacific Coast of 

 U. S. 



