BOTANY. 
21 
Commelyna erecta, Linn.; Ell. Sic. 1, p. 48. Los Playas; August. The specimens agree in 
almost every particular with Elliott’s description, (1. c.,) except that the larger petaloid sepals 
are reniform rather than cordate. The small inner sepal is lanceolate, and placed between the 
two connate exterior sepals. 
Phalaris arundinacea, Linn.; Torr. FI. New York, 2, p. 418. On the Gila ; June. 
Paspalum distichum, Linn. ? Ell. Sic. 1, p. 108. Banks of the San Pedro of the Gila ; July. 
Widely spread over the warmer parts of North America. P. vaginatum, Swartz, seems to be 
hardly distinct from this species. 
Panicum lachnanthum (n. sp.) : culm ascending, and with the leaves glabrous; panicle 
oblong,erect, the branches alternate and loosely racemose; all the spikelets ped icellate,oblong ; 
inferior glume very short, glabrous ; the superior and the inferior palea of the abortive flower 
much attenuate, and somewhat awned at the tip, densely covered with very long white silky 
hairs ; perfect flower ovate-lanceolate acuminate, and mucronate, glabrous, finely striate and 
dotted longitudinally. Paspalum sericeum, Scheele, in Linncea, 23, p. 341? On the Burro 
mountains; August. Plant about 18 inches long ; the panicle 3-6 inches. A very remarkable 
species. 
Setaria viridis, Beauv.; Kunth, Enum. 1, p. 151. Pennisetum viride, R. Br. Burro 
mountains; August. 
Gastridium australe, Beauv.; Steudel Gram. p. 185. Milium lendigerum, Linn. San Jose 
valley; November. This has not before been noticed as a North American plant. Steudel 
states that it has been found in Chili. It is a common grass in southern Europe. Very prob¬ 
ably it has been brought to America in grain. 
Sporobolus airoides. Agrostis airoides, Torr. in Ann. Lyc. N. York, 2, p. 151. A. (Sporo- 
bolus) airoides, Torr. in Marcy’s Rep. p. 30. Yalley of the Mimbres; August. 
Poa annua, Linn.; Kunth, Enum. 1 , p. 349. Banks of the Salinas river; November. This 
little grass has become quite extensively naturalized in California. 
Poa compressa, Linn.; Kunth , Enum. 1, p. 355. Los Angeles ; March. A slender form, 
with a loose, open panicle. 
Uniola spicata, Linn. Brizopyrum spicatum, Hook. & Am. FI. Bor.-Amer. 2, p. 254, 
excl. the synonyms of Uniola stricta, Torr., and U. multiflora, Nutt. San Felipe. It is found 
also in Oregon, and is in all essential characters like the plant of the Atlantic States. 
Avena fatua, Linn.; Kunth, Enum. 1, p. 302. Abundant in various parts of California, 
being the common wild oat of that country. 
Andropogon nutans, Linn.; Kunth, Enum. 1, p. 504. Sorghum nutans, Gray, Man. ed. 2. 
On the river Mimbres ; August. 
Polypodium intermedium, Hook. & Am. Bot. Beechey, p. 405 ; Hook. FI. Bor.-Amer. 2, p. 
258. Santa Inez, and plains of the Salinas. 
Adiantum Chilense, Kaulf. Fil. p. 207; Hook, and Grev. Ic. Fil. t. 183. • Shore of Santa 
Inez and Santa Barbara. Some of our botanists have named this A. tenerum. It is common in 
California and New Mexico. 
Aspidium argutum, Kaulf. Enum. Fil. p. 242. Temecula Hill, and valley of the Salinas, 
California. 
Pteris lanuginosa, Kaulf. Enum. Fil. p. 189 ; Hook, and Am. Bot. Beechey, p. 405. Yalley 
of the Salinas. 
