of the Galapagos Archipelago. 175 



47. A. REPENs, Rup. 8f Trin. I. c. p. 1 28. 



Hab. Galapagos, Douglas. No doubt James Island ; the only one I believe upon which 

 Mr. Douglas landed. 



There is no specimen of this plant in the Hookerian Herbarium. 



48. PoA {Eragrostis) pilosa, L. Kunth, Agrost. p. 329. 

 Hab. James Island, Charles Darunn, Esq. 



These specimens do not differ from others of North Africa, which are not 

 hairy at the lower base of the panicles. Except with very slight variations in 

 the size and acuteness of the florets, the same plant is found in Peru, the East 

 Indies (sub nom. P. punctata, Roxb., paleae sometimes scariose), North Ame- 

 rica (P. tenuis. Ell. S. capillaris), Buenos Ayres, Brazil {P. polytricha, Nees), 

 and Mexico and Brazil {P. Mexicana, Link), specimens of which last, in the 

 Hookerian Herbarium, from Hort. Reg. BeroL, entirely coincide with the 

 Galapagos Island plant. 



49. PoA {Eragrostis) ciltaris, L. Kunth, Agrost. p. 337. 



Hab. Var. panicula elongata, vaginis hirsutis, culmis erectis. — Albemarle Island, Mr. Macrae. 

 Var. panicula coarctata, vaginis pilosis, culmis suberectis. — Chatham Island, Charles 



Darwin, Esq. 

 Var. panicula elliptica vel elongato-ovata, vaginis glabriusculis, culmis tenuibus pro- 



cumbentibus. — Charles Island, Charles Darwin, Esq. 



minima (rarius 0) Integra v. bifida, foliis glaberrimis v. parcfe pilosis. Atheropogon apludoides, 

 Heterostegon curtipendulus et Eutriana curtipendula, Schweinitz in Herb. Hook. 

 Hab. North America, Schweinitz. St. Louis Missouri, and Texas, Drummond. 



Very nearly allied to E. curtipendula, but differs in the much smaller spikelets, which bear more 

 numerous (generally 6) flowers. The upper flower too has cdmost invariably 2 paleae, and is more 

 perfect than in that species. 



3. E. gracilis. Hook. fil. ; glaberrima, panicula stricta erecta spicuUs secundis sessilibus trifloris, glumis 

 insequahbus superiore flosculum solitarium aequante subacuta integra, paleis subaequilongis infe- 

 riore apice breviter bicuspidata ; superiore latiuscula convoluta apice bifida dorso basi setula sub- 

 aequilonga acuta, cuhno erecto graciU folioso, foliis long^ lineari-lanceolatis culmo brevioribus in 

 acumen elongatum gradatim productis. 



Hab. Tucuman, Tweedie. 



A most distinct species, well-marked by its single-flowered locustae, the subcaudate apices of the 

 leaves and slender habit. 



