Plate 29. 
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ASPLENIUM Trichomanes, L . 
Common or Maidenhair Splcemuort. 
Asplenium Trichomanes; small; caudex short, thick, densely fibrous; stipites 
one to four or five inches long, numerous, tufted, dark-castaneous or black- 
ebeneous, glossy, margined; fronds four to six or more inches long, linear- 
lanceolate, coriaceo-membranaceous, dark dull-green, paler beneath, pinnated; 
pinnse numerous, horizontal, scarcely petiolate, lower ones distant and 
smaller, oval or obovate or oval-oblong, obliquely cuneate at the base, supe¬ 
rior base rounded, sometimes truncated and even auriculated, sometimes 
excised at the inferior base, the margin entire or irregularly crenato- 
serrate or rarely incised (/3 incisum , Moore) ; costa subcentral; veins few, 
distant, oblique, generally forked above the middle; sori oblique, in two 
equal series; involucres pale brown, membranaceous, entire or jagged at 
the margin. 
Asplenium Trichomanes. Linn. Sp. PL p. 1540, m part. Huds. Angl.p. 452. 
Sm. Eng. Bot. t. 567. Sw. Syn. Fil. p. 80. Schk. Fil. p. 69. t. 74. Bolt. 
Fil. Brit. p. 22. t. 18. Mich. FI. Bor. Am. v. 2 . p. 264. Sm. Eng. Ft. 
p. 305. Hook. FI. Bond. v. 5. t. 166. Hook, and Am. Brit. FI. ed. 8. 
p. 589. Hook. Gen. et Sp. Fit. v. 3. p. 136. Hook. FI. Tasm. v. 2. p. 145. 
Asa Gray , Man. Bot. N. U. States , p. 594. Pappe and Raws. Syn. Fit. Afr. 
Austr.p. 19. Metten. Asplen. p. 138. Moore , Brit. Ferns , Nat. Print, 
't. 39. 
Asplenium trichomanoides. Cav. Bemonstr. p. 257. n. 635 {not Mich.). 
Asplenium melanocaulon. Willd. Sp. PL v. 5 . p. 332. Mart, et Gal. Fil. Mex. 
p. 59. 
Asplenium densum. Brack. Fil. U. S. Expl. Exp. p. 151. t. 20. 
Asplenium dichroura. Kze. in Herb. Nostr. Pr. Tent. Pterid. p. 108; and 
Aspl. heterochroum, Kze. in Linncea , v. 9. p. 67. 
(A large form of this species is found in Madeira, Teneriffe, and the 
Azores, which is the Aspl. anceps , Sol. MS. and Hook, and Grev. Ic. Til. t. 
195. In Mexico and New Granada is a still larger form, the Aspl. casta- 
neum, Schlecht.) 
Hab. A very frequent inhabitant of Great Britain, from the south of Devon and 
Cornwall to the extreme north in the Orkneys, usually growing from the 
crevices of walls and rocks. 
This well-known Spleenwort seems to have been confounded 
by Linnaeus and some of the older botanists with the far more 
local Asplenium viride. The two are, however, I believe, quite 
distinct, and the present is readily distinguished by its darker 
coloured fronds, far more rigid habit, and the ebeneous stipites 
