ASPLENIXTM. 
427 
2 roTTS. Sometimes (A. trlfidttm Eoth ?) tlie pinnules are much 
less connected, moderately cut, have a naiTow attachment, and 
lobes ■with more but conuiveut teeth. — There are innumerable 
subvarieties. — "Wet shady places. P. VI. VII. E. S. I. 
8. AsPLE'NiTia Linn. Spleenwort. 
• Ultimate subdivisions with a distinct midvein. 
AsPLENiUM Newm. 
1. A. fontdnuin (Presl) ; frond linear-lanceolate bipinnate, 
pinnse oblong-ovate, pinnules obovate-cimeate with few spinose- 
mucronate teeth. — E. B. 2024. — Fronds about 4 in. long. — 
Formerly on Amersham Church, Bucks. Above Wyboiim, 
Westmoreland. Hudson. Between Tan y Bwlch and Tremadoc, 
Merionethshire. Ashford, Hants. P. VI.— IX. E. 
2. A. lanceoldtum (Iliids.) ; frmuJs lanceolate bipinnate, pin- 
nules obovate deeply and shai'ply toothed or lobed, clusters shoH 
nearly marginal. — -E". B. 240. N. 249. — Fronds sometimes nearly 
linear and simply pinnate, always nai-rowed at the base. Clus- 
ters oblong, ultimately rather confluent into roundish masses. — 
Rocks and walls, rather rare. P. VI. — IX. , . E. I. 
3. A. Adiantum-nigrum (L.); fronds ovate-triangular or tri- 
angTilar-prolonged twice or thrice pinnate, pinnae and pinniiles 
triangular shaii)ly toothed, clusters long central. — U. B. 1950. 
N. 225. — Clusters 2 or 3 times as long as in the preceding, 
placed near the midiib and ultimately confluent in oblong masses 
often covering the whole under siu-face of the pinnule. — a. ; 
fronds about as long as the stipe ovate-triangular, pinnae and 
pinnules triangular, idtimate subdivisions bkmt. — /3. A. acutum 
(Bory) ; fronds much shorter than the stipe triaugailar-prolonged, 
pinnte and pinnules lanceolate-attenuate, ultimate subdi\asions 
very acute. — Rocks and walls, fi. South-west of Ii-eland. P. 
IX. Blacic Splcemvurt. E. S. I. 
4. A. Trichom 'ones (L.) ; frond linear pinnate, pinnse roundish- 
ovate crenate, veins forhed below the clusters. — E. B. 576. 
N. 285. — Rachis black, keeled beneath. Pinnae scarcely oblique ; 
both edges rounded and crenate except at the base, upper 
often bUmtly auricled below. — jS. A. anceps (Sol. ?) ; pinnse ob- 
long blunt wedgeshaped below upper edge and end crenate-den- 
tate lower entire. Pinnse oblique, lower edge nearly straight ; 
lower pinna much the smaller. — A curious variety is occasionally 
found -with its pinnae deeply but in-egadarly piunatitid with linear 
notched segments. — Rocks and walls. jS. liillaxney. P. V. — X. 
Cotnnwn Spleenwort. E. S. I. 
5. A. vir'ide (Huds.) ; fronds linear pinnate, pinnae roimdish- 
