1056 
CRYPTOGAMIA. MUSCI. Bryum. 
(B. demis'sum. Stem very short, branched: leaves ovate, cuspidato- 
acuminate, reticulated; the nerve excurrent: seta arched: theca 
curved and pyriform, pendulous. 
Grev. Scot. Crypt. 92— Muse. Brit. Sup. vi. 
Stems one to five lines long, with a few simple branches arising from their 
base. Leaves imbricated, yellowish green, reddish at the base; apex 
almost piliferous. 
Pendulous Thread-moss. Discovered on Craig-calleach in Bredalbane, 
and the neighbouring mountains, by Dr. Hooker. Grev. E.) 
D. Capsules on fruit-stalks, drooping. 
(2) Stems upright. 
B. nigei'tum. Capsules egg-shaped, toothed: shoots in bundles: 
leaves spear-shaped, keeled, acute. Dicks. 
Hedw. Stirp. iii. 39— (E. Bot. 1825— Muse. Brit. xiv. E.) 
Plant black green. Fruit-stalk black red. Capsules shining, black, brittle. 
Lid convex, with a small point. 
(Du sky Thread-moss. E.) Weissia nigrita. Hedw. (Hook. Grimmia 
nigrita. Sm. E.) Boggy heaths, Scotland. Dickson. P. 
B. pulvina'tum. Capsules roundish : veils minute: shoot branched: 
leaves oblong, mid-ribbed, hair-pointed. 
{Hook. FI. Lond. — E. Bot. 1728— Muse. Brit. xiii. E.)— Dill. 50. 65— 
Happ. iii. Bryum. 1— Vaill. 29. 2— Pet. Gaz. 95. 15— ti. Ox. xv. 6, row 
the last , 21. p. 629. 
Fruit-stalks bending down so that the capsules are buried in the foliage : 
but in some stages of the growth they are upright. Neck. In circular 
convex dense patches, about half an inch high. Leaves , the lower ones 
brown and without hairs. Fruit-stalks terminal, very short, at first 
upright, but as the capsule ripens bending down. Mouth toothed. Veil 
deciduous. Lid short, pointed. Weis. 
(Grey-cushioned Thread-moss. Grimmia pulvinata. Sm. Hook. DU 
cranum pulvinatum. Sw. Turn. Fissidens pulvinatus. Hedw. E.) Walls, 
rocks, and roofs; one of the most common of all Mosses. March—April. 
Var. 2. Capsules shorter and rounder; plant white with hoary hairs. 
Specimen sent by Mr. Griffith. The uppermost leaves ending in very 
white hairs, as long or longer than themselves. 
B. cubita'le. Capsules club-shaped, oblong: shoots and fruit-stalks 
bent: leaves arrow-shaped, points bordered. Dicks, ii. Q. 
( E. Bot. 2554. E.)— Dicks. 5. 2. 
The largest of all the Brya. Shoots somewhat branched, rather recumbent 
at the base. Leaves expanding, taper-pointed, with a thick mid-rib and 
reddish edge. Fruit-stalk terminal, very long, a little above the base 
with an elbow-like bend, a gold coloured reddish brown, brightly glit¬ 
tering. Capsule depressed and pendent, club-shaped, very long. Fringe, 
teeth numerous, upright. Dick. Stems trailing near the root, often three 
