126 PROCEEDINGS OP THE AMERICAN ACADEMY. 



& Heller, no. 540 (lib. Gr.). Further distrib. U. S., Mex., W. Ind., S. 

 Am. Audersson notes two vegetative forms : obesa and data. 



Stenotaphrum, Trin. 



S. glabeum, Tiin. Fund. Agrost. 176 ("1820"). S. americanum, 

 Schrank, PI. Rar. Hort. Monac. t. 98 (" 1819 ") ; Rob. & Greenm. (1), 

 149. — Albemarle Isl. : Iguana Cove, Snodgrass & Heller, nos. 

 57 (lib. Gr.), 873 (lib. Gr.). Chatham Isl.: southwest end, middle 

 region, Baur, no. 325 (hb. Gr.). Further distrib. tropical shores of 

 both continents. 



Stipa, L. 



S. rostrata, Anderss. (1), 142, & (2), 48. — Chatham Isl.: Au- 

 dersson (hb. Gr.). Habit of Aristida subspicata, but differing rather 

 conspicuously in its untwisted awns. Endemic. 



CYPERACEAE. 



Ctperus, L. 



C. aristatus, Rottb. Descr. Nov. PI. 23, t. 6, f. 1 (1786) ; C. B. 

 Clarke, Jour. Linn. Soc. xxi. 91. C. inflexus, Muhl. Descr. Gram. 16 

 (1817); Hook. f. (3), 177; Anderss. (1), 153, & (2), 54. — Albe- 

 marle Isl. : Macrae (var. y elongatus, Hook, f., 1. c. 178); Tagus Cove, 

 Snodgrass & Heller, no. 173 (hb. Gr.). Charles Isl.: Darwin (var. 

 /3 acaulis, Hook, f., 1. a). Chatham Isl. : A. Agassiz (hb. U. S. Nat. 

 Mus.). James Isl. : Scouler. Narborough Isl. : south, 615 m. alti- 

 tude, Snodgrass & Heller, no. 345 (hb. Gr.). Further distrib. N. Am., 

 Mex., W. Ind., S. Am., Old World. 



C. brachystachys, Anderss. (2), 53, t. 13, f. 2 ; Rob. & Greenm. 

 (1), 148, where by typographical error ascribed to Charles Island. 

 Mariscus brachystachys, Hook. f. (3), 179; Anderss. (1), 152. — 

 Abingdon Isl. : Snodgrass & Heller, no. 832 (lib. Gr.). Albemarle 

 Isl. : Iguana Cove, Snodgrass & Heller, no. 39 (hb. Gr.) ; southern 

 portion, Baur, no. 313 (hb. Gr.). Charles Isl.: Darwin; Anders- 

 son. Chatham Isl.: southwest end, middle region, Baur, no. 312 

 (hb. Gr.). James Isl. : Scouler. Tower Isl. : Snodgrass & Heller, 

 no. 791 (hb. Gr.). Endemic. This species is known to me only from 

 the descriptions of Hooker and Andersson, which do not altogether agree, 

 and from Andersson's figure, which is not very satisfactory. The speci- 

 mens of recent collections mentioned above are referred here with doubt. 



