CATALOGUE. 329 



ing ; pinnse very numerous, 2-6 lines long, oblong, obtuse, entire or crenu- 

 late, auricled on the upper side at the nearly or quite sessile base, the 

 middle ones longest, the lower ones gradually shorter, more distinct and 

 deflexed; texture rigid-chartaceous; sori short, abundant. — Fil. Mex. p. 60, 

 t. 15, f. 3. A. trichomanoides, Mettenius, fiber Asplenium, p. 137, not of 

 Michx., Fl. Bor. Am. ii, p. 265. A. resiliens, Kunze, Linnsea, 18, p. 331. 

 A. ebeneum, var. minus, Hook. Sp. Fil. iii, p. 139. A. ebeneum, D. C. Eaton 

 in Botany of Mex. Boundary, p. 235. 



Great Canon of the Rio Grande, Parry. Texas, E. Ball, n. 852. Limestone rocks in shady places, 

 Northern Alabama and Georgia, Hon. T. M. Peters, Dr. Chapman. Mexico to Chiapas. 



This is perhaps not sufficiently distinct from A. ebeneum, which it replaces in the dryer regions of 

 the Southwest and Mexico. It is a Bmaller and more rigid plant, with the pinna; more entire, and more 

 generally deflexed. Specimens from Chiapas have all the pinnse deflexed. Michaux's Tennessee speci- 

 mens of his A. trichomanoides I examined several years ago in Paris, and made a note that they clearly 

 belong to A. ebeneum. 



Aspleninm septentrionale, Hoffmann. 



Plant low, growing in dense tufts ; rootstocks matted together, hidden 

 by the blackened remains of old stalks ; fronds crowded, 2-4 inches high, 

 the slender naked stalk bearing an irregularly forking frond, consisting of 

 from two to five narrowly linear rather rigid acute segments or branches, 

 which are entire or more frequently cleft at the end into a few long narrow 

 teeth ; sori much elongated, placed near the margin, usually facing each 

 other in pairs, commonly only two or three to each segment. — " Deutschl. 

 Fl. ii, p. 12." Hooker, British Ferns, t. 26. D. C. Eaton in Botany of 

 Mexican Boundary, p. 235. 



On Ben Moore, New Mexico (Dr. Sigeloio), and at perhaps the same station, C. Wright. Middle 

 Mts., Colorado (Hall 4" Harbour, 689), and on the brink of the Great Cafion of the Arkansas, in com- 

 pany with Aspl. Triclwmaneg, Brandegee. In mountainous regions throughout Europe and in Northern 

 India. 



A very curious little Fern, originally described as an AcrosUchum by Linnasus, referred to Acro- 

 pteris by Link, and made the type of a genns (Anesium) by Newman. But it is no doubt better to regard 

 it as an Asplenium with very narrow segments, and exceedingly elongated sori. The involucres, being 

 very close to the margins of the segments, give the plant something of the look of a Pteris. Occasion- 

 ally the segments are a little broader, and produce as many as four or five sori, and then the Asplenioid 

 character is very evident. 



J 2. ATHYRIUM. 



Indusia more or less curved, and often crossing to the outer or lower side 

 of the fruiting veinlet. 



