328 EXPEDITION TO JAPAN. 



gynium, which, with the broader fertile spikes and leaves, principally distinguish it from the 

 C. alopecuroides of Don. 



Carex macrocephala, Willd,; Spreng. Syst. 3, p. 808 ; Boott, in Hook. Fl. Bor.-Am. 2, p. 215, 

 t. 216; Trev. in Fl. Boss. 4, p. 271. Yokohama. By some oversight this was not commu- 

 nicated to Dr. Boott, who has kindly, and with his accustomed thoroughness, examined the 

 other Carices of this collection, and furnished the above account of them. There is no room to 

 doubt, however, that the specimens, though young, are identical with the species of the north- 

 west coast of America, which Pallas also obtained in Siberia, probably in the extreme east ; and 

 being a sea-coast species, we should naturally have expected it from Japan. 



Alopecurus geniculates, Linn ; Thunb. Fl. Jap. p. 49. Hakodadi, Yokohama, and Simoda. 

 In rice fields, &c. 



Alopecurus malacostachyus (n. sp) : caule pedali ; foliis caulinis omnibus (nisi infimo) 

 vaginis subtumidis suprema inflata brevioribus ; spica laxa cylindrica (bipollicari) ; glumis 

 basi tantum connatis obtusis carina villoso-ciliatis ad nervos laterales basi hirsutulis casterum 

 glabris palea obtusa leviter 5-nervi paullo brevioribus; arista paleas fere basilari glumas plus 

 duplo superante ; stylis a basi distinctis. — Simoda and Yokohama. Somewhat glaucous. Boot 

 probably annual. Lowest leaves \\ to 2 inches, the upper an inch in length, smooth and soft. 

 Spike rather lax, soft, greenish. Spikelets 3 lines long, nearly as large as those of A. agrestis, 

 but much more compressed ; the villous fringe of the keels softer than in A. pratensis, but 

 nearly as long. Awn scabrous, somewhat contorted. Inner palea wanting. Ligule membra- 

 naceous, ovate, obtuse. This cannot be A. Japonicus of Steudel, if that species is at all correctly 

 described as having only one glume ciliate, and two paleas, &c. 



Polypogon Monspeliensis, Desf. Simoda. 



Polypogon littoralis, Smith, Engl. Bot. t. 1251 ? Simoda. 



Agrostis scabra, Willd.; Gray, Man, Bot. A laxiflora, B. Br.; Griseb. in Fl. Boss. 4, p. 

 441. Simoda. A. tenuiflora, Sleud. A form not rare in the United States. 



Poa annua, Linn. Gathered at all the stations. The collection contains one or two other 

 species of Poa not yet determined. Among them is undoubtedly, 



Poa acroleuca, Steud. Syn. Glum. 1, p. 256. Yokohama. 



Glyceria fluitans, B. Br. Simoda. In rice fields. 



Festuca pauciflora, Thunb. Fl. Jap., p. 52. Simoda and Yokohama. Probably, also, F. 

 remotiflora, Steud. ; but the leaves and sheaths are glabrous or nearly so. The awns areas 

 long as the paleas. 



Bromus conforms, Steud. Syn. Glum. I, p. 323. Dry rice fields, Simoda. Spikelets, includ- 

 ing the awns, 2 inches long. 



Arundinaria Japonica, Sieb. & Zucc, ex Steud. I. c, p. 334. Simoda. Inflorescence and 

 flowers only. There are imperfect specimens of one or two other Bambusineous grasses; among 

 them, probably, Phyllostachys bambusoides of Siebeld and Zuccarini. 



Triticum caninum, Schreb.; a very long-awned variety. Simoda. 



Triticum vulgare, Linn. Simoda ; cultivated. A long-awned variety of Wheat. 



Hordeum vulgare, Linn.; Thunb. Fl. Jap., p. 65. Cultivated. 



Hordeum uexastichum, Linn. Simoda. Cultivated ; various forms of Six-rowed Barley. 



Avena sativa, Linn. Simoda. The Common Oat. No doubt cultivated. 



Trisetum cernuum, Trin. in Mem. Acad. St. Bet., 1830, p. 61. Bromus bifidus, Thunb. Fl. 

 Jap., p. 53. Simoda and Yokohama. I do not doubt that the Japanese plant is the same 



