118 PROCEEDINGS OP THE AMERICAN ACADEMY. 



(lib. Gi\). Jervis Tsl. : Baur, no. 351 (hb. Gr.) : Seymour Isl. : north, 

 Snodgrass & Heller, no. 567 (hb. Gr.) ; south, Snodgrass & Heller, 

 no. 611 (hb. Gr.). Endemic. 



Cenchrus, L. 



C. distichophyllus, Griseb. Cat. PI. Cub. 234 (1866); Rob. & 

 Greenm. (1), 148. — Albemarle Isl. : southern portion, Baur, wo. 335 

 (hb. Gr.), wrongly recorded as from Hood Isl. by Rob. & Greenm. 1. c. 

 Sterile and hence doubtful. Further distrib. Cuba. 



C. granularis, Anderss. (1), 140, & (2), 47; Rob. & Greenm. (1), 

 148. — Albemarle Isl.: Tagus Cove, from beach to 180 m. altitude, 

 not abundant, Snodgrass & Heller, no. 211 (hb. Gr.). Charles Isl. : 

 Baur, no. 324 (hb. Gr.) : Snodgrass & Heller, no. 456 (hb. Gr.). 

 Chatham Isl. : Andersson (hb. Gr.) ; A. Agassiz (hb. U. S. Nat. 

 Mus.). Seymour Isl.: south, Snodgrass & Heller, nos. 593, 594 

 (both in hb. Gr.). Endemic. 



C. platyacanthus, Anderss. (1), 139, & (2), 47 ; Rob. & Greenm. 

 (1), 148. — Abingdon Isl.: Snodgrass & Heller, no. 808 (hb. Gr.). 

 Albemarle Isl. : Iguana Cove, S7iodgrass & Heller, nos. 37 (hb. Gr.), 

 112 (hb. Gr.). Barrington Isl.: Snodgrass & Heller, no. 484 

 (hb. Gr.). Bindloe Isl.: Snodgrass & Heller, no. 781 (hb. Gr.). 

 Charles Isl.: abundant, Andersson; Snodgrass & Heller, no. 456a 

 (hb. Gr.). Chatham Isl. : Andersson ; Snodgrass & Heller, no. 550 

 (hb. Gr.). Gardner Isl.: Snodgrass & Heller, no. 636 (hb. Gr.). 

 Hood Isl.: Baur, no. 323 (hb. Gr.) ; Snodgrass & Heller, no/ 716 

 (hb. Gr.). Indefatigable Isl. : northern part, Snodgj'ass & Heller, 

 no. 678 (hb. Gr.). Jamks Isl. : James Ba} T , common along the coast 

 in sand and lava soil, Snodgrass & Heller, no. 395 (hb. Gr.). Nar- 

 borough Isl. : southern part, Snodgrass & Heller, no. 317 (hb. Gr.). 

 Endemic so far as known but apparently spreading rapidly in the 

 manner of an introduced weed. 



C. sp. — Chatham Isl. : Snodgrass & Heller, no. 520 (hb. Gr.). A 

 large soft-pubescent species nearly related to, if not identical with, some 

 of the very diverse forms in the Hawaiian and other Pacific Islands now 

 collected under C. calyculatus, Cav. and its supposed synonyms. 



Chloris, Sw. 



C. anisopoda, nov. sp., annua, radice fibrosa, culmis pluribus caespi- 

 tosis suberectis tenuibus teretibus glaberrimis 5-7-nodosis ; vaginis striatis 



