414 99, FILICES. 
pinne oblong-ovate, pinnules obovate-cuneate with few deep 
sharp teeth.—E. B. 2024.—This plant does not associate well 
with the genus.—Formerly on Amersham church, Bucks. Found 
by Hudson “ above Wybourn in Westmoreland.” P.] E.? 
8. ASPLENIUM Jinn. 
* Ultimate subdivisions with a distinct midvein. 
ASPLENIUM Newm. 
1. A. lanceolatum (Huds.) ; fronds lanceolate doubly pinnate, 
pinuules ovate deeply and sharply toothed or lobed, sori short 
nearly marginal.— #. B. 240, N.249.—Fronds sometimes nearly 
linear and simply pinnate, always narrowed at the base. Sori 
short oblong, ultimately rather confluent into roundish masses. 
—Rocks and walls, rather rare. P. VI.—IX. E. 
2. A. Adiantum-nigrum (L.); fronds triangular attenuated 
twice or thrice pinnate, pinne and pinnules triangular sharply 
toothed, sori elongated central— E.. B. 1950. N.255.—Sori 2 or 
3 times as long as in the preceding, placed near the midrib and 
ultimately confluent in oblong masses often covering the whole 
under surface of the pinnule.—Rocks and walls. P. VIL—IX. 
Black Spleenwort. 
3. A. Trichomanes (L.); frond linear pinnate, pinne roundish- 
ovate erenate stalked, nerves forked below the sori.—E. B. 576. 
N. 285.—Rachis black. A curious variety is occasionally found 
with its pinne deeply but irregularly pmnatifid with linear notched 
segments.—Rocks and walls. P. V.—X. Common Spleenwort. 
4. A. viride (Huds.); frond linear pinnate, pinne roundish- 
ovate or rhomboidal crenate stalked, nerves simple or forked 
beyond the sori—E. B. 2257. N. 281. Rachis green. Sori at 
length confluent.—Rocks on mountains. P. VI.—X. 
5. A. marinum (L.); frond linear simply pinnate, pinne stalked 
ovate or oblong serrate unequal and wedgeshaped at the base.— 
E. B. 392. N.275.—Varying greatly in size. Sori not confluent. 
—Maritime rocks. P. VI.—X. 
** Ultimate subdivisions without a distinct midvein. 
Amesium Newm. 
6. A. Ruta-muraria (L.); fronds bipmnate, pinnules rhomboid- 
wedgeshaped notched or toothed at the end, indusium jagged.— 
E. B. 150. N. 261.—Fronds 3—4 in. long.—Rocks and old walls. 
P. V.—IX. Wall Rue. 
7. A. germanicum (Weiss); fronds simply and alternately pin- 
nate, pinnules narrow-wedgeshaped the lowermost ternate, in- 
