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Since writing the above I have received a specimen from Mr. Griffith in

fruit, the fruit-stalk more than an inch long. He found it for the first time in this state, last summer, when the rills were dry or nearly so, and thence concludes that it only flowers in very dry seasons. Possibly the

very tender and delicate fruit-stalk may be destroyed in rainy seasons. (SAELL-LEAVED JUNGERMANNIA. J.cochleariformis. Weis.) J. purpurea.

Scop. Lightf. With. Ed. ii. Mnium Jungermannia. Linn. (J. nemorosa var. B. purpurascens. Hook. who considers this species as scarcely differing from J. nemorosa a, but in the deep purple colour of the whole plant. E.) Bogs, rivulets, and cascades in mountainous situations, and in ditches and turfy heaths. On Cader Idris, Snowdon, and Glyder. Dillenius. In moist peat earth on a mountain called Cowsand, and on the sides of hills in the forest of Dartmoor, Devon. Mr. Newberry. In all the rills near Snowdon. Mr. Griffith, (who says his plant is certainly the same that he has seen in all collections, without fructification, as Mnium Junger mannia. E.)

P. March-Aug. Var. 2. Leafits very entire. Smaller than the preceding, upright, green, not purple. Seems to be the

variety mentioned by Dillenius as growing in bogs. Specimens from J.

W. Griffith, Esq. C. (2) Leaves winged : leafils with appendages : fruit-stalks lateral or

at the base. J. ova'ta. Shoots creeping, branched : leafits egg-shaped, alternate,

with appendages underneath: sheathing the involucrum in versely egg-shaped. Dicks. ii. 11.

Dicks. 8. 6. Fruit-stalks terminal and lateral. Involucrum ragged at the top. Dicks. (OVATE-LEAVED JUNGERMANNIA. E.) On barren heaths. J. TRILOBA'TA. (Stem creeping, flexuose, branched: leaves imbricated

above, ovate, convex, obtusely three-toothed : stipulæ broadly subquadrate, crenate: fruit arising from the lower part of the stem : calyx oblong, subacuminate, the mouth cleft on one side. Hook. E.)

(Hook. Jung. 76—E. Bot. 2232-Mich. t. 6. f. 2. E.) About an inch long, trailing, branches distant. Leafits with three to five

shallow clefts at the end. Involucrum about two lines long, terminating.

Fruit-stalks very short. Weis. (THREE-Lobed JUNGERMANNIA. J. radicans. E. Bot. Unknown to Dil

lenius, whose synonym, according to most authors, Prof. Hooker announces to belong to J. quinquedentata. Grows in large patches, often a foot in diameter, in subalpine situations, but is seldom found in fructification. E.)

P. March-April. J. RETTANS. Shoots doubly compound: fruit-stalks lateral: leafits

four-cornered, snipped towards the end : stipulæ four-cleft. (Hook. Jung. 75-E. Bot. 608. E.)-Schmid. 68-Dill. 71. 24-Schmid.

Jung: f. 8. 13.

Fruit-stalk from the base. Capsules blackish, shining. Dill. Appendages

underneath the leafits. Neck Tender, creeping, irregularly branched, limber, about one inch long. Leafits very minute, ending in three or four little teeth. Involucrum three-sided, whitish, toothed. Fruit-stalk

white, shining. Capsules oblong-egg-shaped. Weis. Dill. (A beautiful species universally dispersed throughout Europe ; in habit

closely allied to J. trilobata, having, like that plant, its leaves imbricated on the upper surface, large dentate stipules, flagella beset with leaf-like scales, and a whitish membranaceous calyx, proceeding from the under

part of the stems. Hook. E.) (CREEPING JUNGERMANNIA. E.) Moist shady places, and woods.

P. Dec.-April. J, MULTIFLOʻRA. Shoots creeping, branched: leafits alternate, in pairs,

bristle-shaped, equal. Linn. Leaf simply winged, flowering at the base. Huds. 510.

(Hook. Jung. 8. E.)-Dill. 69. 4. Shoots thread-shaped, half to one inch long. Leafits short. Weber. Invo

lucrum central, numerous, crowded, white, four-cleft. Fruit-stalks slender, wbite, long. Capsules large, reddish brown. Dill. (Stems exceedingly slender, in tufts, or solitary among Sphagna, half an inch to two inches long, irregularly branched in a distant lax manner. Leaves very minute, setaceous, in pairs. Colour pale green. Peduncle a quarter

of an inch long, Grev. E.) (MANY-FLOWERED JUNGERMANNIA. J. setacea. Web. Hook. E.)

Shooter's Hill, near London. Dillenius. (Moist shady places. Auchendenny woods. Grev. Edin. E.)

P. March.

D. Shoots tiled with leafits, J. COMPLANATA. Shoots creeping: leafits doubly tiled, with little

scales underneath: branches of an equal breadth throughout. (Hook. Jung. 81–E. Bot. 2499. E.)-Fl. Dan. 1062—Curt.-Dill. 72. 26

-Mich. 5. 21. Leafits circular. Fruit-stalks terminal, very short. Neck. From one to

two inches long, flat, irregularly branched, adhering close to the bark of trees in broad patches ; soft to the touch and flaccid when wet. Fruitstalks hardly a line long, rising from the origin of the branches as well as from their extremities, out of a scaly involucrum, which is lopped at the end. Capsule small, black, of short duration. Weis. Dill. (Fructification abundant at all seasons. Grev. The circumstance of the roots most frequently proceeding from the surface or pagina, (not from the margins,)

of the leaves, in small tufts, is highly curious. Hook. E.) (FLAT JUNGERMANNIA. E.) Trunks of trees, in hedges and thickets, flourishing most in moist situations.

P. Jan.-April.

(The wonderful structure of these diminutive regetables can only be discorered under the wicroscope ; and the capsules of the present species, as Curtis observes, afford, wbea ready to burst, and aided by the point of a needle, much entertainment ; for the elastic hairs inside will instantly appear in motion, and throw off the globules attached to them in great numbers, and with considerable force. E.)

J. DILATATA. Shoots creeping: leafits doubly tiled, with little scales

underneath: branches broader towards the end. (Hook. Jung. 5-E. Bot. 1086. E.)-Schmid. 67Dill. 72. 27Vaill. 19. 10

-Mich. 6. 6-Neck. Meth. 1. 3, at p. 273. Leafits circular, in a double row, Neck.; convex, smaller, and shoots nar

rower than in J. complanata. Involucrum terminating the branches, three-cornered ; Neck.; colour dark green, or reddish. Fruit-stalk one line long. Weis. Shoots strap-shaped, lying on one another, forming dense roundish patches. Branches distant, winged. Involucrum mostly terminating, half a line long. Fruit-stalk very short. Capsule minute,

globular. Pol. (The barren fructification may be seen on the same individual as the fertile,

though it is far more abundant on separate plants. In this instance, (and some others,) the genus is to be considered both monoecious and dioecious.

Hook. E.) (Dilated JUNGERMANNIA. J. tamariscifolia. Schreb. Schmid. E. Bot.

E.) Trunks of trees, closely adhering to the bark. P. March-April. J. TAMARIS'CI. Shoots doubly compound: fruit-stalks terminal: leafits

roundish, with appendages underneath : stipulæ egg-shaped,

notched. (Hook. Jung. 6–E. Bot. 2481. E.)-Schmid. 67Dill. 72. 31–Mich. 6.6

-Vaill. 23. 10. Greatly resembles J. dilatata, Neck.; but the shoots are much longer,

crowded and lying one upon another, more slender, more branched; branches of a uniform breadth, blunt at the ends, not closely attached to the tree on which it grows, but rather hanging down. The mid-rib is more exposed to view, and on the under side appears jointed, and covered with small scales cloven at the end. Fruit-stalk terminating, very short. Capsule brown yellow. Weis. Dill. Lea fits circular, very entire. Capsule very minute. Pol. (By no means so common as the last. Patches conspicuous from their purplish colour, varying to green in shady

situations. Hook. E.) (TAMARISK JUNGERMANNIA. J. tamariscina. E. Bot. J. tamariscifolia.

With. Ed. 3. &c. Hooker alledges sufficient reasons for adopting the alteration now made : considering the name tamarisci, as used by Linnæus in Syst. Nat. and Sp. Pl. (though not Fl. Suec.) as most applicable. E.) Trunks of trees and rocks. (A rare plant in Lancashire, but found in a fir wood near Childwall. Mr. Shepherd. Covering the Juniper bushes on the Pentland Hills. Greville. E.)

P. Feb.-March. J. EX'CISA. Shoots creeping, branched: fruit-stalks terminal: leaves

tiled, concave, notched at the end : sheathing inyolucrum inversely egg-shaped. Dicks. ü. 11.

(Hook. Jung. 9—E. Bot. 2497. E.)-Dicks. 8. 7. Shoots cylindrical, closely tiled with leaves. Involucrum toothed at the top.

Dick. (NOTCHED JUNGERMANNIA. E.) Moist shady woods in England.

(Highland mountains, and marshes, common. Hooker. E.)

J. PLATYPHYL'LA. (Fronds procumbent, much branched, spreading,

triply auricled beneath: leaves heart-shaped, obtuse: sheaths

toothed. (Hook. Jung. 40-E. Bot. 798. E.)- Vaill. 19. .-Dill. 72. 32–Mich. 6. 3

and 4-H. Ox. xv. 6, row 2. 44-Happ. iii. Jungermannia. About a finger's length, growing in close patches ; doubly winged. Leafits

egg-spear-shaped, tiled in a double row, with appendages underneath. Weis. Fruit-stalk short, lateral and terminal. Involucrum blunt, compressed, about one line in height. Capsules minute, upright, smooth, shining, yellowish. Pol. Grows in large tufts on walls and trunks of trees, one layer upon another, fixed only by the ends, irregularly branched. Leaves crowded, tiled, pellucid, thin, dark green, the edges and the ends

turned down. Dill. (Rarely found in fruit. E.) (RECURVED JUNGERMANNIA. E.) On trunks of trees, and on walls. Old walls, Bungay. Mr. Stone.

P. March-April. Var. 2. Leaves shorter and rounder. Hall. n. 1872. Lightf. 785.

Dill. 72. 33—Mich. 6. 1. Leaves heart-shaped, rounder than in the preceding. Mid-rib entirely

covered underneath by scales. Branches at right angles to the shoot.

Have not seen it in flower. Dill. Trunks of trees. Dillenius. (J. TOMENTEL'LA. Stem nearly erect, bi-pinnate: leaves nearly flat,

unequally two-lobed, cut into numerous capillary segments; superior lobes bipartite, inferior, minute: stipulæ subquadrate, laciniate : fruit axillary: calyx oblong, cylindrical, hairy, open at the mouth. Hook. E.)

(Hook. Jung. 36–E. Bot. 2242. E.)-Dill. 73. 35. Primary branches alternate, secondary ones alternate likewise, but so

closely set as to appear nearly opposite ; larger and more numerous in the barren than in the fertile plants. Leaves pale green, woolly, extremely crowded, and very minute. Involucrum in the angles of the branches, long, woolly, straw-coloured. Fruit-stalk white, pellucid. Capsule oblong, black. Dill. (It bears considerable affinity to J.ciliaris of Linn. but besides the great difference in colour, (J. ciliaris being always of a rich yellow brown,) our present plant is much less convex in the upper surface of its leaves, which are divided into four narrower segments, and the laciniæ are considerably longer, and more numerous,

as well as greatly more branched. Hook. E.) (Downy-LEAVED JUNGERMANNIA. J. tomentella. Ehrh. Dicks. Hook.

J. ciliaris. Weis. Huds. With. Lam. not of Linn. Growing in patches often several feet in diameter, and conspicuous from its extremely pale green colour. E.) Moist woods and heaths, and wet mossy places near rivulets in Yorkshire, Cumberland, and Westmoreland ; in a small current of water which runs through Oldfall Wood between Highgate and Muswell Hill, about Chichester, Sussex, and Dorking, Surry. Ray, and Dillenius. In the Highland Mountains near Aberfeldy. Dickson. On a dry sandy bank on Brome Heath, near Bungay. Mr. Stone. (Very abundant at Allau's Ford, near Durham. Mr. Thornhill, in Hooker. E.)

P. March-April.

J. VARIA. Shoots nearly upright, tiled, pointing two ways: leafits deeply divided.

Dill. 73. 35-Mich. 5. 9. Shoots short, stiff, brittle; frequently with green or yellowish globules at

the end. Fruit-stalks white, shining, five lines long, terminal. Involucrum egg-shaped, with four teeth. Capsules globular, black and shining. Pol. At first creeping, undivided, winged with leaves; when older, rising up somewhat branched, the leaves surrounding the

branches. Dill. (Variable JUNGERMANNIA. Considered by Prof. Hooker as synonymous with J. albicans. E.) Woods and heaths in moist shady places.

P. March-April. (J. CILIA'RIS. Stems prostrate, winged: leaves alternate, two-ranked,

convex above, irregularly palmate, fringed : sheaths cylindrical, smooth, obtuse. E. Bot. E.)

(Hook. Jung. 65E. Bol. 2241. E.)—Dill. 69. 3. (Grows in densely-matted, large, purplish-brown patches. Hook. Stems

one to fire inches long, irregularly branched in a somewhat pinnate, or bi-pinnate manner: leares beautifully ciliate as well as the stipules, close and imbricated; reticulation large. Peduncle scarcely twice as long as the calyr, which is obtusely obovate, much contracted at the mouth.

Grev. E.) (Ciliated JUNGERMANXIA. E.) J. ciliaris. Linn. Hook. Sm. J. pul

cherrima. Web. Sw. With. E.) On heaths in England and Scotland. Dickson. (Sides of Lochain ý Gair. Mr. Brown. (Pentland Hills. Greville. E.)

P. March. J. ADUN'CA. Shoots thread-shaped, bent at the ends: leaves expanding,

pointing one way: fruit-stalks terminal, short. Dicks. ii. 12.

(Hook. Jung. 4-E. Bot. 2418. E.)—Dicks. 8. 8. Leaves nerveless, cloven, points acute; three together, or rather pointing in

three directions. Griff." (Stems scarcely so thick as a pack-thread, of a bright reddish-brown colour, several inches in length, flexuose. Hook. E.) Shoots trailing, branched. Leaves tiled, but standing opeu; spearstrap-shaped, channelled, the point a little turned back. Fruit-stalk

short, crooked. Sheathing involucrum short, roundish. (REFLEXED JUNGERMANNIA. J. juniperina. Sw. Hook. E.) On

shaded banks in the Highlands of Scotland. Dickson. (Prof. Hooker describes remarkably fine specimens, (almost a foot long,) by a cascade in

a glen near the head of Loch Lomond. E.) J. JULA CEA. Shoots cylindrical, upright: leafits tiled on every side:

flowers on fruit-stalks: (calyx large in proportion to the size of the plant. Hook. E.)

(Hook. Jung. 2_E. Bot. 1024. E.)-Dill. 73. 38. Brittle. Fruit-stalk terminal. Neck. Shoots slender, cylindrical, silky,

from half to one inch high ; sometimes forked. Leaves so closely compressed as hardly to be observable, which distinguishes it from every other species. Web. Grows in very dense tufts; shoots and branches cylindrical, and silky when fresh. Dull greyish green, and brittle when

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