210 PROCEEDINGS OF THE AMERICAN ACADEMY. 



BiDENS, L. 



B. cniLENSis, DC. Prodr. v. 603 (183C). — Albemarle Isl. : Tagus 

 Cove, 1230 m. alt, Snoclgrass & Heller, no. 887 (lib. Gr.). Further 

 distrib. Chili. 



B. riLOSA, L. Sp. 832 (1753). B. leucantha, Willd. Sp. iii. 1719 

 (1804) ; Auderss. (1), 187, & (2), 74 ; Caruel (1), 623 ; Rob. & Greeum. 

 (1), 147. — Albemarle Isl. : Andersson. Charles Isl. : Andersson. 

 Chatham Isl.: Andersson; Qhierchia ; southwest end, middle region, 

 Bcmr (hb. Gr.) ; Snodgrass & Heller, no. 534 (hb. Gr.). Widely 

 distrib. in trop. reg. 



B. KEFRACTA, Brandegee, Zoe, i. 310 (1890). — Albemarle Isl.: 

 Iguana Cove, Snodgrass & Heller, no. 92 (hb. Gr.) ; Tagus Cove, not 

 common inland at 150 to 300 m. alt., Snodgrass & Heller, no. 178 

 (hb. Gr.). Charles Isl.: Snodgrass & Heller, no 420 (hb. Gr.). 

 Hood Isl. : Snodgi'ass & Heller, no. 732 (hb. Gr.). James Isl. : 

 James Bay, most abundant herb, growing everywhere in shade of bushes 

 on lava soil, Snodgrass & Heller, no. 380 (hb. Gr. ). Narborough 

 Isl. : southern part, abundant at 600 m. alt., Snodgrass & Heller, 

 nos. 31 G (hb. Gr.), 338 (hb. Gr.). Probably a recent introduction from 

 Mexico or Lower California. Palmer's no. 923 (coll. of 1890) from 

 Manzanillo, Mexico, appears to be identical. Plate 2, fig. 4 (drawn 

 from a Galapageian specimen). 



Blainvillea, Cass. 



B. rhomboidea, Cass. Diet. xxix. 493 (1823); Anderss. (1), 178, & 

 (2), 69 ; Rob. & Greenm. (1), 146. Yerhesina dichotoma, Murr. Comm. 

 Goett. ii. 15, t. 4 (1779). — Albemarle Isl.: Lee (hb. U. S. Nat. 

 Mus.); Iguana Cove, Snodgrass & Heller, no. 99 (hb. Gr.) ; Tagus Cove, 

 growing everywhere in tufa soil up to 300 m. alt., Snodgrass & Heller, 

 no. 184 (hb. Gr.). Barrington Isl.: Snodgrass & Heller, no. 482 

 (hb. Gr.). Charles Isl.: Baiir, no. 118 (hb. Gr.); Snodgrass & 

 Heller, no. 442 (hb. Gr.). Chatham Isl. : Andersson (hb. Gr.) ; 

 Snodgrass & Heller, no. 535 (hb. Gr.). Duncan Isl.: Barir, no. 119 

 (hb. Gr.) ; Snodgrass & Heller, no. 698 (hb. Gr.). Hood Isl. : Baiir, 

 no. 117 (hb. Gr.) ; Snodgrass & Heller, no. 720 (hb. Gr.). Indefat- 

 igable Isl. : Andersson ; northern part, Snodgrass & Heller, no. 681 

 (hb. Gr.). James Isl.: James Bay, common in lava soil, Snodgrass 

 & Heller, no. 389 (hb. Gr.). Narborough Isl. : southern part, 

 tolerably common at 615 m. alt., Snodgrass & Heller, no. 314a (hb. 



