— VW 
BOTANY. ‚ 289 
EQUISETACEJE.* 
EQUISETUM ARVENSE, Linn. ; Pursh, Fl. 2, р. 651; Braun & Engelm. in Sill. Jour. 46, p. 83; 
Torr. Fl. N. York, 2, p. 480. Near the Mimbres, New Mexico; Thurber. Small sterile 
specimens. 
EqursETUM L&VIGATUM, Braun Ё Engelm. l. с. Banks of the Rio Grande, near El Paso, and 
near the Coper Mines. 
Equisetum RoBUSTUM, Braun & Engelm. 1. c. Banks of the Rio Grande. 
| FILICES. 
WoopwARDIA RADICANS, Willd. Sp. 5, р. 418; Hook. & Arn. Bot. Beech. р. 162 & 405. W. 
Chamissoi, Brack. Ferns of the U. S. Expl. Exped. p. 138. Between San Diego and the 
Colorado; Schott. 
ADIANTUM CAPILLUS-VENERIS, Linn. ; Hook. Sp. Fil. 2, p. 36. From San Antonio to the Rio 
Grande, and northward to New Махан: common along running streams. 
ADIANTUM CHILENSE, Ком/. Enum. p. 201 ; Hook. l. c. p. 43. California, Texas; Wright, 
(No. 2123.) 
Var. HIRSUTUM, Hook. І. с. р. 43, t. 15, В. A. pilosum, Fée, Gen. Fil. p. 118. Rocks near 
the mouth of the Pecos; Bigelow. 
PTERIS AQUILINA, Linn. Var. 8. LANvarNOsA, Hook. Fl. Bor.—Am. 2, p. 263; Brack. 1. c. p. 
119. P. lanuginosa, Hook. & Arn. Bot. Beech. p. 405 ; Agardh, Gen. Pterid. 51.? Between 
San Diego and the Colorado ; Schott. 
PELLÆA FLEXUOSA, Link. Fil Sp. p. 60; Fée, Gen. Fil. p. 129. Жасақ Kunze ; Schk. 
Fil. Supp. 1, р. 46, t. 93. Pteris, Hook. Ic. Pl. 2, t. 119. Оп running streams near the Rio 
Grande, and along the San Pedro and the Gila. (No. 825, Wright.) 
PELLEA ANDROMEDAFOLIA, Fée, 1. c. АПовогав andromedeefolius, Kunze, Anal. Pterid. р. 18, 
¿ ll. Pteris, Kaulf. Enum. Fil. p. 188. Between San Diego and the Colorado ; Schott. 
PELLÆA PULCHELLA, Fée, l. c. Allosorus pulchellus, Mart. & Gal. Fil. Mex. p. 47, t. 10, fig. 
l. A. formosus, Liebmann, Mex. Breg. p. 68. From Howard's Springs and the Pecos to the 
San Pedro and the Waterholes; Bigelow, Schott. (No. 824, Wright.) 
PELLXA MUCRONATA. Allosorus mucronatus, D. C. Eaton in Sill. Jour. (ser. 2,) 64, p. 138; Torr. 
Bot. Whippl. Hep. p. 160. Pellea Wrightiana, longimucronata, & Ornithopus, Hook. Sp. 
Fil. 2, p. —, t. 115 & 116, (ined.) On rocks from the Rio Grande, westward, to the Colorado 
and California. (No. 2130 and 2131, Wright.) This fern varies in height from two inches to 
over a foot. Іп its simplest state the upper pinn: are trifoliate, and the lower quinquefoliate ; 
from this it varies to a state in which the secondary rachis bear numerous and minute trifoliate 
pinnules. Some of the forms resemble P. ternifolia, Link. l. c., (Pteris ternifolia, Hook. d 
Grev. Ic. Fil. 2, t. 126,) but have not the narrow linear outline of that species, nor its obovate- 
cuneate sterile pinnules. 
PELLEA ATROPURPUREA, Link. l. с. Pteris atropurpurea, Willd. Sp. Pl. 5, p. 375; Pursh, І. c. 
2, p. 668. Platyloma atropurpurea, J. Smith; Torr. ЕІ. New York, 2, p. 488. Allosorus 
atropurpureus, Presl. Tent. Pterid. p. 153. ; Gray, Manual, 2d ed. p. 591 Along the Mimbres, 
New Mexico ; Bigelow. 
* This and thé ollaring ondere cf Acrogens were elaborated by Daniel C. Eaton, esq., of the Scientific School of Yale College. 
The firasses will be the subject of a separate report, to be published in the Smithsonian contributions. 
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