,1 :
k '
H ab.—On damp rocks or growing amongst mosses in wet
places in mountainous districts. Very rare.
7. Snowdon, Dillenius, 1740. Snowdon, below Clogwyn du
Arddu, ascent from Beddgelert, August 1840, Balfs. Cwm Idwal,
Carnarvonsliire, W. Wilson. 12. Honister Pass, Cumberland,
Dr. Carrington fl W. II. P., 1890. 15. Ben na Bord, George
Domi, 1812. Ben Avon, G. Donn, 1812; .lohn Noioell, 1847. Ben
Voirlioh, W. Gourlie, 1842. Ben Mac Dhui, G. Stabler, 1884.
16. On rock-ledges in several places on the hills from 1200 ft.-
1800 ft., frequently associated with Mastigophora, Moidart, West
Inverness, S. M. Macvicar, 1898 ; S. M. Macvicar fl W. H. P., 1899.
I. Brandon Mountain, Dr. Taglor, W. Wilson.
Found on the Continent (Norway), Sandwich Islands, East
Indies {vide Mitten).
Obs.—A very rare and distinct species, first collected by
Dillenius on Snowdon in 1740; its brown colour, shape and
position of the antical lobe of leaf readily distinguish it from any
of the ciliate Scapania, with the exception of S. nimbosa, which see.
I am averse to changing any well-established and appropriate
specific name, but as Dillenius described and figured so accurately
and Withering published the species so many years before Hooker,
who evidently was not aware the species was already published,
I feel compelled to adopt the earlier one.
D escription or P late LXXXVI.—Pig. 1. Plant natural
size. 2. Portion of stem, antical view x 16. 3-5. Antical leaf-
lobes X 24. 6, 7. Postical leaf-iobes x 24. 8. Portion of
leal X 290. 9. Cilia x 290 (Ben Voirlioh, Gourlie).
8. Scapania nimbosa, Taglor.
Scapania nimbosa, Tayl. in Lehm. Pugill. P lan t. 8 (1844). Trans. Bot. Soc. of
Edin. 11, p. 115 ; G.L.N. Syn. Hep. Suppl. p. 662 (1847).
Loosely cæspitose, somewhat large, reddish-brown colour to
rosy red near the apex. Stems firm, ligneous, blackish, suberect
or flexuose, simple or sparingly branched, innovant branches produced
from the postical side, rootlets near the base, few, long, very
delicate, hyaline. Leaves patent, inserted at an angle of from 40°
to 60°, imbrioate, amplexicaul, complicate, (divided almost to the
base into two subequal lobes, margin ciliate-dentate, cilia frequently
uncinate, antical lobe slightly concave or undulate, crossing
the stem, a little smaller than the postical, oblong-ovate, apex
somewhat rotundate or lanceolate ; postical lobe obliquely ovate,
convex, slightly recurved at tlie upper margin, suture short, thick,
ligneous ; epidermis smooth, cells small, roundish-quadrate, cell-
walls thick, trigones distinct, ¿ and Î unknown.
D imensions.—Stems 1 to 3 inches long, diam. 25 iiim., with
leaves 2'25 mm. wide; leaves, antical lobe 1'25 ram. x '95 mm.,
postical lobe 1'4 mm. x 1' mm. ; cells '02 mm., cell-walls
'0075 mm., cilia T mm. long.
H ab.— On moist rocky ledges in alpine situations. Discovered
hy Dr. Taylor near the summit of Brandon Mountain, Co. Kerry,
Ireland, in 1813, growing with Scapania ornithopodioides, Jung,
orcadensis, Ilypnum loreum and Bhacomifrium lanuginoswm. W.
Mitten, 18— ?
16. Moidart, West Inverness, S. M. Macvicar, 1898 ;
S. Al. Macvicar fl W. II. Pearson, 1899.
These are the only two known stations.
Obs.—The rarest, and one of the most beautiful and finest of
our British Hepaticæ, discovered on Brandon Mountain, South of
Ireland, by Dr. Taylor in 1813, and although repeated attempts
have been made by other botanists, no one, except Dr. Taylor and
Mr. Mitten, has been so fortunate as to meet with it in Ireland ;
and as only few specimens were known to exist in herbaria, most
botanists had to be content with the description, and say with
the late Dr. D. Moore in his Report on the Irish Hepaticæ : “ I
know nothing of this plant further than the quotations transcribed
testify.”
However, in 1898 Mr. Symers M. Macvicar found the plant
in Scotland, and in the following year I had the good fortune of
being taken to its habitat by him.
I add the following notes from his interesting Hepaticæ of
Moidart, “ Journ. of Bot.” Aug. 1899; “ Liable to he overlooked