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Involucrum terminal, obscurely three-cornered. Fruit-stalk whitish, tender,

an inch long. Neck. Shoots one to three inches long, generally branched. · Weis. Leafits with two teeth at the end forming a half moon. Seholl. Leaves pale green, pellucid, alternate, fixed by a broad base to the rib, pointing upwards. Fruit-stalks leafy at the base. Capsules black brown. Dill. (Growing in more or less crowded patches of some inches in

diameter. E.) (This species is said to be aromatic. The fig. in E. Bot. omits to represent

the stipules, which Hooker observes to be always present, though scarcely

distinguishable to the naked eye. E.) (BIDENTATE JUNGERMANNIA. E.) Woods, moist beaths, and shady banks.

A. Oct.-Dec. J. QUINQUEDENTA'TA. Shoots branched : leafits with five teeth.

(Hook. Jung. 70-E. Bot. 2517. E.)-Dill. 71. 23. Involucrum with five teeth, a line or more in length. Neck. Shoot some

times simple, taking root as it creeps along. Capsules appear in autumn; it blossoms in the spring. Leaves four-sided, teeth or scollops from one to six. Shoots crowded, one inch to one inch and half long, in general branching into forks. Web. Creeping, crowded, sometimes branched. Leaves pellucid, numerous, broadest at the base, pleasant green, lower ones ending in three sharp teeth, upper ones in four or five. Fruit-stalk

terminating. Involucrum toothed, angular. Capsule black. Dill. (Five-TOOTHED JUNGERMANNIA. J. quinquedentata. Linn. Huds. J.bar

bata, Schreb. ; which latter name Hooker has adopted, believing the other inapplicable, and that, except by accident or injury, five segments are never seen to exist on the leaves of this plant. E.) In patches of various dimensions, in woods and wet shady places. About Tunbridge, and in the west of Yorkshire. In the ascent to Ffynnon frech, near Llanberris. Mr. Griffith. (On the rocks of Cromford Moor, near Matlock. Mr. Teesdale. E.)

P. April. J. MACRORHIZA. Shoots upright, branched : leafits alternate, slightly

notched, open. Dicks. u. 16.

(Hook. Jung. 27-E. Bot. 1022. E.)—Dicks. 5. 10. Leaves, the uppermost purplish. Root large, branched. Dicks. (Siem

erect, branched ; leaves loosely imbricated, patent, ohcordate, emarginate ; fruit terminal; cal. ovate, toothed, immersed in the leaves. Hook. Ehrhart compares the leaves to a heart cut out of paper: when growing in water

the plant loses its purplish hue, and becomes dark green. PURPLE-TIPPED JUNGERMANNIA. J. emarginata. Linn. Hook. Amidst

moist alpine rocks abundant. E.) Higher mountains of Scotland.

Crib y Ddescil. Mr. Griffith. J. SPHERO-CEPH'ALA. Leafits with two teeth : fruit-stalks terminal or lateral, supporting a barren globular flower.

Dill. 31. 6. Small, whitish, creeping, leaves pointing two ways. Lenfits notched at the

end, and the segments sharp-pointed. Scop. Roots extremely slender and numerous, from the mid-rib, and fixing the plant firmly to the ground. Fruit-stalks short, terminal and lateral. Capsules, or powdery heads, pale green. Leafits tender, pellucid, cloven at the end, opposite. I have seen no other capsules than these powdery heads. Dill.

(Pale GLOBULAR-FLOWERED JUNGERMANNIA. E.) Mnium fissum.

Linn. J. fissa. Scop. Lightf. In wet places about Highgate, and on Shooter's Hill near Eltham, and especially in a rivulet running through Oldfall Wood, between Highgate and Muswell Hill. Ray. In Scotland. Lightfoot.

Feb.-April. Dill.-P. March-Oct. Huds. B: (2) Leaves winged : fruit-stalks lateral, or at the base. J, SPHAG'NI. Shoots taking root: fruit-stalks lateral : leafits roundish,

very entire, tiled, pointing one way. Dicks. 6.

(Hook. Jung. 33. E.)–E. Bot. 2470Dicks. 1. 10. Shoots an inch or more in length; sometimes branched, sometimes not,

bending in various directions, and here and there putting forth fibrous roots. Leaves roundish, brownish yellow, convexo-concave, all pointing one way, though placed in two rows, alternately lying on each other. Capsule one or two, issuing from tho same side of the shoot near the top or the bottom. Fruit-stalk pellucid, white, a quarter of an inch high. Sheath whitish, oblong, brownish at the top. Capsule small, roundish, hrown, but rarely seen. Differs from J. polyanthos. Linn. in the leaves being of a brownish yellow, pointing one way, and also in the fibrous roots. Dicks. (Remarkable for its large radicular fibres. Grev. The leaves may always be known from those of other Jungermannia, by the firmness of their texture, by the peculiar smallness of the cellules, com

bined with their general orbicular shape. Hook. E.) (Bog-moss JUNGERMANNIA. E.) Marshy places, frequently adhering to

Sphagum palustre, near Croydon, Surry. (Belton, near Yarmouth. Mr. * Turner. New Forest, Hampshire, most abundant, in fructification. Mr. • Lyell, in Hook. Jung. E.)

May. J. VITICULO'SA. (Leaves flat, naked, entire, ovate, slightly decurrent,

bifariously arranged: stipulæ small, nearly circular, laciniate,

acuminate. E.) (Hook. Jung. 60-E. Bot. 2513. E.)-Mich. 5. 4-Vaill. a. b. between f. 7

and f. 2. Shoots three inches long ; branches one or two inches. Leafits egg-shaped,

yellowish brown, or only green when growing in the shade, the edges very entire. Peduncle an inch or an inch and a half long, white,

cylindrical, cellulose, tipped with the brown, oblongo-ovate capsule. FLAT-LEAVED JUNGERMANNIA. Grows in loosely matted patches of va

rious size, rendered conspicuous by their yellowish brown colour. Not uncommon in various subalpine parts of England, Scotland, and Ireland; sometimes upon Mosses. Hook. E.)

P. March-April. J. POLYAN'THOS. (Leaves horizontal, rotundo-quadrate, flat, entire,

and emarginate: stipulæ oblong, bifid; fruit upon very short branches, arising from the lower surface of the stem: calyx much shorter than the calyptra, bi-labiate, laciniate. Hook. E.)

(Hook. Jung. 62–E. Bot. 2479. E.)-Dill. 70. 9. Shoots about one inch long, winged. Leafits alternate, egg-shaped, with a

blunt point. Fruit-stalk half an inch high, from the mid-rib and the origin of the branches. Capsule brown red, egg-shaped, Weis. short, branched, stiffLeufits roundish, short, thin, pellucid, tiled. Involucrum white, short, four-cleft.

VOL. III.

як.

(MANY-FLOWERED JUNGERMANNIA. E.) Woods, moist shady bauks,

amongst moss, and on the sides of rivulets. Lead Hill, and between Dorking and Cold Harbour, Surry, in marshy places. (On stones in rapid rivulets : Bilston Burn. Mr. G.Don. Grev. Edin. E.)

P. March-April. J. BICUSPIDA'TA. (Stem procumbent, branched in a stellated manner :

leaves subquadrate, acutely bifid: the segments acute, straight, entire: fruit terminal: calyx oblong, plicate, the mouth

toothed. Hook. E.) (Hook. Jung. 11-E. Bot. 2239. E.)-Schmid. 63Dill. 70. 13-Mich. 6.

17--Schmid. Jung. (Stems very slender, half an inch to one inch in length. Leaves extremely

minute, distant, alternate, very pale green, cleft half way down into two acute segments: peduncle half an inch long, very slender : calyx large in proportion to the plant. Grev. E.) Shoots less branched than in J. bis

dentata, and more limber, from half to one inch long. Weis. (FORKED JUNGERMANNIA. Not E. Bot. 281, (as quoted in former Edi.

tions), which Prof. Hooker considers to be à distinct species, closely allied to J. bidentata. E.) Shady places and moist woods.

P. March-April J. MINUTA. Shoots upright, branched : leafits with appendages under

neath : leaves roundish. Dicks. ii. 13.

(Hook. Jung. 44-E. Bot. 2331. E.)- Dill. 69. 2. Very slender, branched. Leafits not distinguishable by the naked eye,

alternate, roundish, pellucid, in single rows. Roots very fine woolly filaments fixed to the back of the mid-rib. Dill. (Plant brownish green colour; has a peculiarly neat appearance, from the leaves being most regularly disposed, all placed in a nearly horizontal direction, and, as it

were, in a pinnated manner : lower leaves unequally two-lobed. Hook. E.) (MINUTE AURICLED JUNGERMANNIA. E.) Amongst moss in the High

Jands of Scotland. (Upon Cairn-gorum and Ben Nevis. Hooker. Sum

mit of Carnedd Llewelyn, N. Wales. Mr. Griffith. (April-June. E.) J. VENTRICO'sa. (Stem prostrate, somewhat branched : leaves patent,

subquadrate, obtusely and broadly emarginate, their sides incurved : fruit terminal: calyx oblong; the mouth contracted, plicated, toothed. Hook. E.)

(Hook. Jung. 28–E. Bot. 2568. E.)-Mich. 5. 15. Leaves more deeply cloven than represented by Micheli. Dicks. (May be

distinguished from J. excisa, by its larger size, more branched habit, the involute margins of the leaves, and the abundant, and very conspicuous gemmaceous globules, so compact as to resemble little balls; and princi

pally produced in early summer. Hook. E.) (GLOBE-SHEATHED JUNGERMANNIA. E.) Woods, and shady rocks. J. SPINULOʻsa. Shoots upright, branched : leafits inversely egg-shaped, sharply toothed. Dicks. ii. 14.

(Hook. Jung. 14. E.)-Dill. 70. 15. Shoots upright, or reclining, but not creeping ; branches numerous. Leares

alternate, not closely set, dull green, pellucid, the upper ones smaller,

with two or three teeth at the end ; lower ones with more teeth. Dill. (Barren fructification unknown: fertile, lateral upon the surculi, and frequently arising from the arillæ of the branches. Hook.

Teeth acute, mostly on one side the leafit. (An elegant var. has been observed scarcely exceeding an inch in length,

slender, and minute. E.) (SHARP-TOOTHED JUSGERMANNIA. E.) On Snowdon. Dillenius. On

the mountains of Scotland. Dickson. On Crib y Ddescil, and Cader

Idris. Griffith. J. PAUCIFLO'RA. Shoots creeping, very much branched, thread-shaped :

fruit-stalks lateral: leaves bowed in, deeply divided : sheaths conical, remote. Dicks. ii. 15.

(E. Bot. 2482 ? E.)-Dicks. 5. 9. Leaves alternate, remote, cloven down to the base. Segments equal, strap

awl-shaped, bluntish, concave, transparent, in the instertices opake. Fructifications solitary, remote. Sheaths conical. Fruit-stalks as long again as the involucrum. Nearly allied to J. multiflora, and at first sight greatly resembling it, but differs from it in the number of its fruit

stalks, &c. Dicks. (FEw-FLOWERED JUNGERMANNIA. E.) Near Croydon, growing on Sphage

num palustre. Dickson. Yorkshire. Mr. Teesdale. (Norfolk and Suf

folk. Mr. Turner. E.) C. (1) Leaves winged : leafits with appendages : fruit-stalks terminal. J. UNDULA'TA. (Stem erect, subdichotomous : leaves unequally two

lobed, waved, entire: lobes roundish, conduplicate, lower ones largest : fruit terminal: calyx oblong, incurved, compressed, the

mouth truncate, entire. Hook. E.)

(Hook. Jung. 22—E. Bot. 2251. E.)—Vaill. 19. 6Dill. 71. 17. (Stems one to five inches long, mostly naked below. Leaves distichous,

lower ones distant and small, upper ones larger and imbricated; colour varying from dull green to purplish : Peduncle about half an inch long: Calyr compressed and incurved towards the mouth which is entire and

truncate. Grev. E.) (WAVY-LEAVED JUNGERMANNIA.) Shady places, moist rocks, and in small streams. E.)

P. March-April. J. NEMORO'SA. Shoots doubly winged above: leafits fringed. (Hook Jung. 21–E. Bot. 607Hedw. Theor. 15Dill. 71. 18-Mich. 5.8 -Dill

. 71. 19E. Bot. 2437—J. resupinata : fid. Hook. J. nemorosa rar. E.) Leafits broad at the base, and enveloping the mid-rib, so that there appears

no interstice between the leafits and the appendages or coloured scales placed above them. Weis. Plant mostly about one and a half inch long, branched or unbranched. Leafits oblong, numerous, green, pellucid. Involucrum terminating, broad; at first leaning. Dill. (The strongly dentato-ciliated margins of the leaves in J. nemorosa will readily distinguish it from J. undulata ; and J. umbrosa; Hooker ; who suspects our author to have mistaken a purple var. B purpurascens, f. 16. for the real J. purpurea of Weis, (Mnium Jungermannia. Linn. E.)

(Wood JUNGERMANNIA. E.) Woods and moist shady places in Westmoreland. (Pentland Hills. Greville. E.)

P. March-April. J. RESUPINA'TA. Shoots doubly winged above: leafits finely scalloped, tiles, circular.

(Hook. Jung. 23. E.) (Plant pale green. Stems not an inch long, procumbent, except the

fructified extremities. Leaves spreading, the lobes nearly equal, except in the lower ones, where the upper lobes are smallest, margin entire Peduncle nearly half an inch long. Calyx compressed at the mouth, incurved, and minutely denticulate. Grev. Much smaller than J. undulatu.

Hook. E.) (ReclininG JUNGERMANNIA. E.) In clefts of rocks, and on turfy heaths.

P. April. J. AL'BICANS. (Stem erect, subdivided : leaves unequally two-lobed,

lobes conduplicate, with a pellucid line in the middle, serrated at the extremity; lower ones larger, sub-cymitar-shaped; upper ones oblong-ovate, acute: fruit terminal : calyx obovate, cylin

drical; the mouth contracted, toothed. Hook. E.)

(Hook. Jung. 25-E. Bot. 2240. E.)-Dill. 71. 20-Vaill. 19.5. Shoots one to two inches long, not creeping, but reclining. Weis. Form

ing dense patches, one shoot lying on another. Leafits two-rowed, balf a line long, and a quarter broad, very entire ; ending in a blunt point. Besides these larger leaves, there is another set only half the size on the upper side of the mid-rib, one at the base of each larger leaf. Involucrum cylindrical, white, terminal. Barren stems reddish at the ends, and containing minute greenish globules filled with a powder. Poll. Whitish

when dry. Dill. (WHITENING JUNGERMANNIA. Under this species Hooker includes J. varia. E.) Woods and wet shady places.

P. March-April. J. COCHLEARIFOR'MIS. Somewhat cylindrical, rather upright: leafits

concave, roundish. Hook. Jung. 21, f. 16-E. Bot. 2500. E.)--Dill. 69. 1-Mich. 5. 16, but

more evidently fringed than in our plants. Leafits pointing from two opposite lines, nearly egg-shaped, transparent,

smooth, embracing the stem, pointed, each furnished with a very small earlike appendage. I have never seen any other than barren plants. Linn. Stems hollow, reddish. Scop. Shoots creeping, strap-shaped, the ends rising upwards. Leafits about a line in diameter, flat. Poll. Varies greatly in appearance. The young plants in wet places crowded, upright. Leaves very small, roundish, nearly flat, pellucid, alternate, without appendages. When older, the leaves are large, more closely set, convexo-concare, with scaly appendages at the base, resembling the leares in shape. In some plants, when fully grown, the leaves are roundish; in others spoon-shaped; and in another variety, gathered on the banks of mountain lakes, I have found the leaves green, pellucid, not crowded, almost embracing the stem. Shoots sometimes branched, from one inch to a foot long when growing in running water. Have not found it in flower, Dill. Have frequently found it with fertile heads. Huds. I have found the capsule filled with ripe seeds, but closely enveloped by the leaves at the extremity of the plant, and probably nerer rising above them.

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