BOTANY. [159] 103 
cylindricum, Michx. 1. c., is a Rottbollia, (R. cylindrica,) and seems to be the same as R. cam- 
pestris, Nutt. 1. c. p. 151. 
ANDROPOGON NuTANS, Linn. A. avenaceus, Miche. Fl, 1, p. 60. Sorghum nutans, Gray, 
Man. ed. 2, p.584. With the last. 
ANDROPOGON scoparius, Micha. l. c. ; Torr. Fl. New York, 2, p. 478. With the preceding, 
and on the Llano Estacado ; August--September. 
AnpRopoGon FuRcATUs, Linn. Pecan creek and Llano Estacado ; August—September. Ped- 
icels of the sterile spikelets clothed with longer and yhiter hairs than in the eastern plant. 
Anpropogon Jamestt, Torr. in Marcy's Rep. p. . A. glaucus, Zorr, in Ann. Lyc. New 
York, 1, p. 152. A. Torreyanus, Steud. Syn. Pl. Glum. p. 392, Comanche Plains, Indian 
Territory ; August, 
LYCOPODIACEA. 
SELAGINELLA STRUTHIOLOIDES. Lycopodium struthioloides, Presl, Rel. Haenk. 1, p. 82, (ex. 
Hook. & Arn.) L. rupestre, 8. Hook. & Arn. Bot. Beech., p. 267. Wet rocks, mountains of 
California and New Mexico; March. 
SELAGINELLA RUPESTRIS, Spring; Brackenridge, Fil. U. 8. Expl. Exped. p. 331. Mountains of 
New Mexico. 
EQUISETACEA. 
EqQuisetum EBuRNEUM, Schreb.; Braun & Engelm. in Sill. Jour. 46, p. 84. KE. fluviatile, J. 2. 
Smith, Eng. Bot. t. 2022; Hook. Fl. Bor.—Amer. 2, p. 269. E. Telmateia, Fhrh. Redwoods 
and mountains near Oakland, California; April. Plant sometimes 3—4 feet high. It is very 
doubtful whether this species grows on the borders of Lakes Erie and Superior. The station 
given for it long ago by Dr. Beck, in his Botany of the Northern States, was on my authority, 
and I was led into the error by the incorrect label attached to a specimen which I received from 
a correspondent. 
EquiseruMm arvense, Linn.; Pursh, Fl. 2, p. 651; Eng. Bot, t. 2020; Braun & Engelm. 1. c. 
Torr. Fl. N. York, 2, p. 480. In overflowed places, Duffield’s Ranch, Sierra Nevada; May 11. 
EQuiseTuM HYEMALE, Linn.; Pursh, 1. c. Eng. Bot. t. 914; Braun & Engelm, l. c.; Torr. Fl. 
N. York, 1. c. Santa Rosa Creek, California; May 1. We can hardly distinguish several of 
species allied to E. hyemale, described by Braun & Engelmann, 1. ¢., for they seem to pass into 
each other by imperceptible gradations. . 
FILICES, 
Potypopium VULGARE 8. occipeNnTatL, Hook. Fl. Bor.—Am. 2, p. 258. P. vulgare, Virginianum, 
Bong. Veg. Sitcha, p. 57. Redwoods, California; April 12. This is nearer P. vulgare of 
Europe than is the plant of the Atlantic States, which we are now inclined to regard as a 
distinct species. 
Potyropium Catirornicum, Kaulf. Enum. Fil. p. 102; Hook. & Arn. Bot. Beech. p. 161 & 405; 
Hook, Fl. Bor.-Amer, 2, p. 258. Mountains near San Gabriel ; April 5. Differs from the 
preceding in the membranaceous fronds, shorter and rather obtuse pinne. The figure in the 
Icones Filicum of Hooker and Greville (t. 56, P. Scouleri of that work) represents a dwarf state 
of this species. 
Po.ypopium INTeRMEDIUM, Hook. & Arn. l. c. p. 405; Hook. 1. c. Rocky ravines, Cajon Pass ; 
March. This plant greatly resembles P. Californicum, and is chiefly distinguished from it by 
the oval sori. 
ALLOSORUS ANDROMEDHZFOLIUS, Kaulf. Enum. Fil. p. 188. Pteris andromedefolia, Hook. & Arn. 
Bot. Beech., p. 406. Hill-sides, Cajon Pass, California. This seems to be the plant described 
