OF ARTS AND SCIENCES. 81 



rainy season. (188.) — S. Virginicus, Kuntb. On islands in Guay- 

 mas harbor. (338.) — S. Domingensis, Kuuth, and vars. Common 

 about Guaymas. (160, 165, 696.) 



Agrostis verticillata, Vill. At Muleje. (41.) 

 Chloris elegans, Kunth. Near Los Angeles Bay. (506.) 

 BouTELOUA ARiSTiDOiDES, Thurb. About Guaymas (162, 194), 

 and at Los Angeles Bay (507). — B. Rothrockii, Vasey. Gardens 

 and fields at Guaymas. (166.) — B. arenosa, Vasey, n. sp. Plains 

 and ridges about Guaymas. (189.) — B. bromoides, Lag. Moun- 

 tains and ledges about Guaymas. (201.) — B. polystachta, Torr. 

 Sandy bottoms near the sea at Los Angeles Bay. (346 ?, 508.) Also 

 var. major. Common about Guaymas. (204, 205.) 



Eleusine Indica, Gaertn. Common at Muleje. (35.) — E. 

 ^a^GYPTiACA, Pers. About Guaymas. (275, 328.) 



Leptochloa mucronata, Kunth, and var. Common about 

 Guaymas. (50, 192, 694.) 



Pappophorum apertum, Munro. On the old fort at Guaymas 

 and on rocky mountain-sides. (274, 350.) — P. Wrightii, Watson. 

 Rocky ridges near Bay of Los Angeles. (511.) 



CoTTEA PAPPOPHOROiDES, Kunth. Rocky island in Guaymas 

 harbor. (339.) 



Triodia pulchella, HBK. On a high rocky point above Los 

 Angeles Bay. (500.) 



DiPLACHNE niBRiCATA, Vasey. Common at Muleje (47), and at 

 Guaymas. — D. dubia, Benth. High in the mountains above Guay- 

 mas. (270, 273.) — D. Tracti, Vasey. Same locality. (691.) — 

 D. viscida, Scribner. Same locality. (692.) 



Phragmites communis, Trin. At Muleje. (38.) 

 Eragrostis major. Host; forms. At Muleje (40, 40^), and about 

 Guaymas. — E. Purshii, Schrad. At Muleje. (42, 49.) Also var. 

 DIFFUSA. Common about Guaymas. (167.) 



DiSTiCHLis MARITIMA, Raf. At Muleje, common. (43.) 

 LoLiUM PERENNE, Liun. In a garden at Guaymas. (52.) 

 NoTHOL^NA* Lemmoni, Eaton. In high mountains near Guay- 

 mas. (266.) — N. CRETACEA, Liebm. {K Californica, Eaton.) 

 Rocky mountain-sides above Los Angeles Bay. (552.) 



Cheilanthes Pringlet, Davenport. Rocky mountain ledges 

 near Guaymas. (265.) — C. myriophylla, Desv. Mountains at 

 Los Angeles Bay. (553.) 



* The Ferns were determined by Prof. D. C. Eaton. 



TOL. XXIV. (N. S. XVI.) 6 



