206 PROCEEDINGS OF THE AMERICAN ACADEMY. 



B. perpdsilla, Hook. f. (3), 218; Anderss. (1), 192, & (2), 77.— 

 James Isl. : Darwin. Endemic. 



B. rotundifolia, Anderss. (2), 77. — Indefatigable Isl.: in 

 grassy places, Andersson. Endemic. 



B. suberecta, Hook. f. (3), 217; Anderss. (1), 191, & (2), 76. B. 

 linearifolia, Rob. & Greenm. (1), 146 (at least in part), not Hook. f. — 

 Albemarle Isl.: Macrae; Iguana Cove, Snodgrass & Heller, no. 129 

 (hb. Gr.) ; southern part, Baur, nos. 135 (lib. Gr.), 140 (hb. Gr.) ; Ta- 

 gus Cove, near beach, Snodgrass & Heller, no. 204 (hb. Gr.), probably 

 the forma (3 of Hook. f. ; 1. c. Barrington Isl. : Baur (identity doubt- 

 ful). Endemic. 



B. sp. Slender simple stems 5 to 7 cm. high from an apparently 

 annual root: leaves oblong-lanceolate, hispidulous on and near the 

 strongly revolute margin. — Chatham Isl. : Snodgrass & Heller, no. 536 

 (hb. Gr.). Perhaps a distinct species, but more probably a starved state 

 of one of the above. 



Chiococca, P. Br. 



C. racemosa, L. Syst. ed. 10, 917 (1760); Jacq. Stirp. Am. 68; 

 Hook. f. (3), 220 ; Anderss. (1), 195, & (2), 78. O. trisperma, Hook. f. 

 (3), 219 ; Anderss. (1), 194, & (2), 78, t. 9, f. 2. C. ? Hook. f. (3), 220. 

 — Galapagos Ids. : Habel. Abingdon Isl. : Snodgrass & Heller, 

 no. 823 (hb. Gr.). Albemarle Isl.: Macrae; Andersson; Elizabeth 

 Bay, Snodgrass & Heller, no. 267 (hb. Gr.) ; Iguana Cove, Snodgrass 

 & Heller, nos. 60 (hb. Gr.), 874 (hb. Gr.) ; Tagus Cove, 150 to more 

 than 650 m., Snodgrass & Heller, nos. 144 (hb. Gr.), 172 (hb. Gr.), 

 899 (hb. Gr.) ; mountain enst of Tagus Cove, alt. 620 m., Snodgrass & 

 Heller, no. 235 (hb. Gr.), alt. 930 m., Snodgrass & Heller, no. 234 

 (hb. Gr.). Bindloe Isl. : Snodgrass & Heller, no. 789 (hb. Gr.). 

 Charles Isl.: Andersson (hb. Gr.). Chatham Isl.: Dai-win; An- 

 dersson. James Isl. : Scouler. Narborough Isl. : southern part, 300 

 to 600 m. alt., scattered but common. 3 to 5 m. in height, Snodgrass & 

 Heller, no. 350 (hb. Gr.). Widely distrib. in trop. Am. The size of the 

 leaves varies greatly, and changes somewhat with the age of the plant ; 

 the fruit is often 2-carpelled and 3-carpelled on the same individual. 



DlODIA, L. 



D. Radula, Cham. & Schlecht. Linnaea, iii. 342 (1828); Schumann 

 in Mart. Fl. Bras. vi. pt. 6, 25. Borreria (Spermacoce asperifolia, Mart. 



