CRYPTOGAMIA. MUSCI. Bryum. 
1049 
the smallness of its capsules. Dicks. Stem undivided, upright, half an 
inch high. Leaves in two rows, alternate. Barren and fertile Jlowers 
together, terminal. Fruit-stalks half an inch to one inch long. Veil open¬ 
ing at the side. Capsules cylindrical. Lid short, conical. Mouth , fringe 
single, teeth in pairs. Hedw. Stalks compressed, jointed. Grif. 
(Fine-leaved Thread-moss. E.) Swartzia capillacea. Hedw. B.cesti - 
vum. Huds. 485, but not Dill. 47.35. ( Tricliostomum capillaceum. Sm. 
B. capillaceum. Dicks. Didymodon capillaceum. Schrad. Brid. Hook. 
On rocks and moist mountainous situations : (more rarely on old walls« 
E.) 
Var. 2. Leaves more crowded, shorter, roughish: capsules much smaller. 
Not above half the height of the preceding. It assumes this habit when 
growing on rocks, or in dry situations, but still it preserves the jointed 
stalk, which is an unerring criterion of this species. Griff.; but which 
seems to have escaped the notice of Hedwig. Maceration in water 
renders these joints visible in a dried plant. 
On the rocks above Own Ffynnon felen, near Llanberris abundantly. Mr. 
Griffith. P. April—-June. 
C. Capsules on fruit-stalks, leaning. 
(1) Stems none, or very short and unbranched . 
B. subula'tum. Capsules cylindrical : lid conical, acute : shoot very 
short, unbranched: leaves egg-shaped, bluntish. 
Curt. 2U—(E.Bot. 1101— Muse. Brit. xii. E.)— FI. Dan. 1000. 2— Vaill. 
25. 8— Dill. 45. 10— Buxb. i. 63. 2; ii. 2. 3 awd 4. 
Grows crowded together; but little branched, terminating in roses. Capsules 
cylindrical, slender, three or four lines long, becoming crooked when dry, 
ripe in summer. Leaves pellucid, pale green, with or without hairs. 
Weis, and Dill. Plant from three to five lines high. Fruit-stalks some¬ 
times in pairs. Veil permanent. Scop, nearly as long as the capsule. 
( Fruit-stalks terminal, from half to one inch long. Capsule lid very long ; 
the teeth twisted together when old into an oblong shape with a brush¬ 
like point. Leaves with a strong mid-rib, ending in a longish grey hair 
which falls off when the leaf is old. Leaves larger than those of any 
other British species, succulent, pellucid in their lower half. 
Awl-shaped Thread-moss. Tortula subulata. Hedw. Turn. Sm. Hook. 
E.) Moist banks, woods, roofs, and walls. P. Jan.—May. 
B. elonga'tum. Capsule long and tapering at the base: shoot up¬ 
right : leaves strap-spear-shaped. 
Hedw. Stirp. i. 36. 
Hardly half an inch high, upright. Barren and. fertile Jlowers terminal, but 
on different plants. Fruit-stalk straight, upright, but a little bent at the 
top by the weight of the capsule. Capsule oblong, leaning, its lower part 
a cellular substance, not containing seeds. Lid convex, beak short. 
Mouth with a double fringe, sixteen teeth in each. 
(Elongated Thread-moss. B. elongatum. Dicks. With. Sm. Pohlia 
elongata. Hedw. Sw. On alpine rocks. Woods near Loch Ness, Scot¬ 
land. On Ben Lawers withi?, Zierii. Mr. Brown. May-^Aug, E.) 
