for the size of plant, frontally compressed, 20 cells x 15, inner
cells distinct, hyaline, two outer rows of cells brown; short,
simple, or with 2-3 innovant branches produced from the axil of
old bracts, suberect or creeping; radiculose, rootlets copious, of a
dirty-white colour. Leaves transversely inserted or a little
ascending, few, accrescent, bifarious, alternate, lower ones minute,
scale-like, middle contiguous, upper closely imbricate, vaglnate,
unequally bilobed from about a fourth to a third, margin entire,
sometimes erose, antical lobe about a third smaller, oblong, oval
to snbquadrate, apiculate, acute or obtuse, undulate, recurved or
incurved, postical lobe oval, obtuse or rotundate; texture somewhat
lax, epidermis smooth, cells near middle at the base
elongate-quadrate, medium size, near the apex rather minute,
subquadrate, oell-walls somewhat thin, angles a little thickened,
no trigones. Bracts large, similar to upper leaves, lobes more
equal. Perianth projecting about a third to half beyond the
bracts, terminal, obovate, compressed, mouth truncate, wide,
entire, a little uneven. Male stems with perigonial bracts
terminal or at the middle, ventricose, antioal lobe more erect,
antheridia oval. Gemmiparous, gemm® whitish-green to brown,
biseptate, terminal, sometimes forming brownish-black spherical
masses.
Pruits April, May.
Dimensions.—Stems about J in. long, '3 mm. to '4 mm. diam.,
with leaves 2'5 mm. to 275 mm. wide ; leaves, antioal lobe 1'2 mm.
X '65 mm., postical 1'5 mm. x 75 mm., antical IT mm. x '5 mm.,
postical 1-5 mm. x 75 mm., antical 1'3 mm. x 75 mm., postical
1'5 mm. X 75 mm.; upper leaves, antical lobe 175 mm.
X 1-25 mm., postieal 2‘ mm. x 1 'mm. ; cells, b a s a l'06 mm.
X '025 mm., 04 mm. x '02 mm., '04 inm. x '025 mm., near apex
of leaf -025 mm. x 015 mm., '02 mm. x '015 mm., '015 mm.
X '015 mm. ; bracts, antical lobe 175 mm. x P mm., postical
2- mm. X 1' mm.; perianth 2'25 mm.x 1T5 mm. at moutli,
gemin» ’02 mm. x '01 imn.
H ad.— Growing on damp, shady rocks by streams ; very rare.
10. Near the “ Strid,” Bolton Woods, Yorkshire, Dr.
Carrington. 11. Egleston, Tees-side, .1. G. Baker. Teesdale,
W. Mudd.
Eare on the Continent.
O bs.— Distinguished from small forms of S. aquiloba by its
smooth epidermis, from A. curfa by its more equal lobes and
distinctly aceresoent habit.
D escription or P late LXXXL—Fig. 1. Stems natural size.
2. Fertile stem x 16 (Bolton Woods, Dr. Carrington). 3. Portion
of sterile stem X 16 (ditto). 4. Cross-section of stem x 24
(ditto). 5-7. Leaves flattened out x 16 (ditto), 8. Upper leaf
X 16 (ditto). 9. Ditto flattened out (ditto). 10. Portion of
leaf, middle basilar cells x 290 (ditto). 11. Ditto, near marginal
apex (ditto). 12. Bract, flattened out x 16 (ditto). 13. Perianth
X 16 (ditto). 14. Portion of the mouth of perianth x 85
(ditto). 15, 16. Perigonial bracts x 24 (Switzerland, Jack).
17, 18. Gemm® x 290 (Bolton Woods, Dr. Carrington).
3. Scapania subalpina {Nees), Dim.
. a, Nee.s in Syn. Hep. Eu r. p. 55 (1829).
Scapania subalpina, Dum. Recueil, p. 14 (1835).
Dioicous, cæspitose, small, pale green to brown in colour
Stems reddish, simple or slightly branched, innovant branohes
(2, 3 or 4) produced from the postieal base of old perianth, erect,
rootlets tew, hyaline. Leaves patent (50°), imbrioate, divided
almost to the middle into two subequal lobes, appressed, closely
incumbent, rotundate or slightly apiculate, antical lobe a little
smaller than the postieal, subrotund to subquadrate, entire or very
slightly denticulate, postieal lobe subrotund or broadly rotund,
denticulate or rarely entire; texture delicate, la.v, epidermi^
smooth, cells smallish, 4-, 5- and 6-sided, walls thin, trigones none
Bracts similar to leaves. Perianth oblong, truncate, mouth entire
Perigonial stems with the J in the middle or terminal, bracts
little different from the leaves.
Fruits May, June.
H a b .— On sandy .soil or amongst mosses in subalpine or alpine
districts. Eare.