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Show 'I'he Hiflory of p L A N T S. 2. Potentilla Joliis dig itatis, caule repente, pedunculis uni-floris. . The Potentilla, with digitated leaves, creepmg .ftalks, and Jingle flowers. <ll:onunon <!tnquefotl. 1'he root is oblong, thick, and woody. The ftalks are round, flender, and procumbent; they take root at their joints, and fpread e~ery way to two or three feet in len th. The leaves fi and five, or more, on each pedtcle; they are of a du:lky &reen colour: oblong, and ferrated at the edges. The flowers ftand fingly, on long pedtcles, and are large and yellow. . . . It is common by way-fides. C. Bauh!ne c~lls it, ~nquefolmm rna J US repens; others ~inquefolium vulgare. It's root IS afinngent. Th~ other fpecies are 1. The !hrubby Potentilla. 2. The filver-leaved, erect Po-tentilln. J· The little, g;ld-yellow-flowered, Alpine Pot~1n1 tilla .. h4. 1 The terna~e-leavehd, ereet, hai ry Potentilla. 5· The white-flowered Potent! a, Wit eaves ~ut 111 at t e ends. 6. The (mailer-leaved, white Potentilla. '!· The. woolly Potentllla. 8. The low, Canada Potentilla. 9. 'The firawberry Cmquef01l. I?· The procumbent, n1ort-leaved Potentilla. 1 1. The ternate-leaved, ramofe Potentilla. T 0 R M E N T I L L A. T HE calyx is a plane perianthium, compofed of a fingle leaf, lightly divided into eight acute fegments, alternately. fmaller : .the corolla c~nfifis of ~our obverfely c01·dated, plane petals, inferted by their ungues mto the cal~x . the. ftamma are fix teen {ubulated filaments, of half the length of the corolla, and mferted mto t~e calyx: the antherre are fimple; the germ ina are eight; they are fmall, and form a kmd of head: the flyles are of the length of the fiamina; they are inferted into t~1e fides of the ~e~mina, and the fl:igmata are obtufe: the receptacle of the fe~ds IS very fmall; It IS covered with feeds, .and furrounded by the cup: the feeds are e1ght, oblong, and acu-minated obtufely. . Linnreus has, in his late writings, joined this genus with the Potenttlla. T he difference is prir)cipally in the number of the parts, but it is fufficient. There is only one fpecies of it. T 0 R M E N T I L L A. The root is tuberous, and furni!hed with a number of fibres. The fialks are ilender, hairy reddi fh round a foot long, and fcarce able to fupport themfelves erect. The leave~ are obl;ng, nar'row, and ferrated, and fiand [even together, at every joint of the fialk. The flowers are fmall, but of a beautiful yellow colour. It is common on heaths. C. Bauhine calls it, Tormentilla fylveftris ; others, Tormentilla vulgaris. It's root is a very good afiringent. C 0 MARUM. T HE calyx is a large; coloured, permanent perianthium, compofed of a fi?gle leaf, lightly divided into ten patent fegments, alternately fmaller, and infenor: the corolla confi!l:s of five oblong, acuminated petals, fcarce a third part fo larg~ as the calyx, into which they are inferted: the fiamina are twenty fubulated filaments, mferted into the cup, of the length of the corolla, and permanent : the antherre are lunular and deciduous: the germina are numerous, roundi!h, and very fmall; they are colle~ed into a head: the ftyles are fimple, {hart, and inferted into the fides of the germma :. the fl:igmata are fimple: there is no pericarpium: the common receptacle of the feeds is of the figure of a fcrotum, very large, fle!hy, and permanent : the (eeds are numerous, acuminated, and they cover the receptacle. Of this genus there is only one known fpecies. CoMA RUM~ ~ The Hijlory of P L A N T S~ C 0 MAR U M. The root is long, creeping, and blacki!h. The leaves are pinnated; there are ufually five or feven of the pinnre on the fame pedicle, arranged in pairs, with an odd one at the extremity; they are oblong, broad, ferrated, and of a pale bluifh-green colour. The ftalks are round, fmooth, in part procumbent, but often rifing a foot and a half, or more, erect; the leaves ftand alternately on them. At the tops of the branches ftand the flowers, which are purple, as is alfo the infide of the calyx. It is a native of the north of England, C. Bauhine calls itJ ~nquefolium palullre rubrum; others, Pentaphyllum flare rubro, G E U M. T HE calyx is a perianthium, compofed of a fingle leaf, divided into ten famewhat erect fegments, alternately very fm all and acute : the corolla confifis of five petals, of a roundi!h. figure, with narrow ungues, of the length of the calyx, and inferted into it : the fiamina are numerous, fubulated filaments, of the length of the cup~ and inferted into it: the antherre are !hort, broad, and obtufe : the germina are numerous, and are collected into a head: the fiyles are long, thready, and inferted into the fides of the germina : the fiigmata are fimple : there is no pericarpium : the common receptacle of the feeds is oblong, hairy, and placed on the cup, which is, at that time, reflex : the feeds are numerous, compreffed, hifpid, and each furnilhed with a long~ geniculated fiyle. This genus comprehends the Caryophyllata of Tournefort and others. I. Geum jloribus ereE!is, fruE!u globofo, fiminum cauda uncinata nuda. The ereE!-jlowered Geum, with a globofe fruit, and the tails of the fieds naked and uncinated. <trontmon ~ben g. The root is iliort, thick, tuberous, oblique, and furnilhed with fibres, of a reddilh colour within, and of an aromatic fmell. The leaves are pinnat~d and large; the pinnre roundi!h., and the odd leaf, at the end, much largefi:, and divided into three fegments: the fialk is erect, flender, a foot, or more, high : the leaves ftand alternately on it. The flowers fiand at the tops of the branches; they are erect, yellow, and moderately large. The fruit is a roundifh, erect, hairy body, of the bignefs of a fmall nut. It is common by way-fides. C. Bauhine calls it, Caryophyllata vulgaris; Gefner, Geum urbanum. 2. Geum jloribus 11utantibus, fruE!u oblongo, fiminum cauda molli plumofa. The nutant-jlowered Geum, with oblong fruit, and plumofe tails to the feeds. t0utplt nulttlJ ~b ttlS. T he root is oblong and creeping. The leaves are pinnated, of a dark green colour, and fomewhat hairy ; the pinnre are roundilh, the terminatory leaf broad, and divided into three lobes. The fialks are numerous, round, hairy, and often reddilh, a foot, or more, in height; the flowers fiand alternately on them; they are placed on 1bort, reddi!h, hairy, bending pedicles; they are of a purple colour on the outfide! and of a pale red within, fca rce appearing beyond the edge of the cup, and always hangmg down. The fruit is oblong, and the tails of the feeds are beautifully plumore. ·It is a native of the north of England. C. Bauhine calls it, Carophyllata aquatica nutante flare; Gefn er, Geum rivale. The other fpecies are, I. The ground ivy-leaved Geum. 2 . The white-flowered, large-leaved, Virginian Geum. 3· The little, nutant-flowered Geum. 4• The great, yellow- flowered, Alpine Geum. 5· The divided-leaved, Alpine Geum. 6. The digitated-leaved, Alpine Geum. 6 c DRYAS. |