FLOUA OF THE GALAPAGOS ISLANDS. 119 



margiue ciliata excepta glaberrimis teretibus spicas inferiores fere in toto 

 incliuleutibas, foliae parte libera brevi lineari attenuata subpungente 

 praeter basis longe ciliatae glaberrima, spicis inferioribus brevibus vaginis 

 arete involutis, supremis subteruis erectis teuuibus flexuosis cum pedun- 

 culo gracile tereti bene exsertis, spiculis teimibus teretibus adpressis 

 bifloris, glutnis sterilibus binis inaequalibus tenuibus lanceolati-linearibus 

 attenuatis acutissimis uninervis trausluceniibus basi breviter fasciculatim 

 barbatis, palea inferiori oblonga ciliata pauUo infra apice subretusa 

 cum arista recta tenui tenuissime barbata suae longitudiui superante 

 munita, palea superiori anguste lanceolata acutissima sed exaristata, 

 flosculi sterilis pedicellati abortivi palea inferiori longe aristata. — C sp. 

 Rob. & Greenm. (1), 149. — Charles Isl. : Baur, no. 333 (hb. Gr.) ; 

 Snodgrass & Heller, no. 459 (hb. Gr.). Endemic. Culms 2.5 to 4 

 dm. high ; leaf blades 2 to 6 cm. long. Spikelets including the awns 

 G mm. long, very slender. A species distinguished from most of its 

 congeners by having inflorescences springing from nearly all the nodes, 

 the lower inflorescences being almost or quite enveloped by the sheaths 

 of the leaves. 



C. ELEGANS, HBK. Nov. Gen. & Sp. i. 166, t. 49 (1815).— 

 Charles Isl.: Snodgrass & Heller, no. 461 (hb. Gr.). Seymour 

 Isl. : north, Sncdgrass & Heller, no. 579 (hb. Gr.). Further distrib. 

 southwestern U. S., Mex. 



C. RADiATA, Sw. Prodr. 26 (1788); Rob. & Greenm. (1), 149.— 

 Charles Isl. : Baur, no. 344 (hb. Gr.). Further distrib. W. Ind., 

 S. Am. 



Chusquea, Kunth. 



C. sp. — Albemarle Isl.: on mountain east of Elizabeth Cove, alt. 

 923 m., Snodgrass & Heller, no. 230 (hb. Gr.), old, dead, and leafless 

 culms only, but the genus recognizable from the peculiar mode of branch- 

 ing. Belonging to a group of tropical S. American grasses of the 

 bamboo tribe, not heretofore noted upon the islands. 



Eleusine, Gaertn. 



E. aegyptica, Desf. Fl. Atl. i. 85 (1798), as aegyptia. E. aegypt- 

 laca, Rob. & Greenm. (1), 149. Dactyloctenium aegyptiacum, Willd. 

 Enum. Hort. Berol. 1029 (1809) ; Caruel (1), 621 ; Rose (1), 138. — 

 Chatham Isl.: Chierchia; A. Agassiz ; Snodgrass & Heller, no. 551 

 (hb. Gr.). Hood Isl. : Baur, no. 326 (hb. Gr.). Of wide distribution. 



