ROSACES. II. GEUM. III. SIEVERSIA. 



327 



Pyrenean Avens. Fl. June, July. Clt. 1804. PL l foot. 



19 G. BRACHYPE'TALUM (Ser. in mem. soc. phys. gen. 2. 

 p. 139.) plant rather pilose ; stems erect, simple, 1-3-flowered; 

 lower leaves interruptedly pinnate, ultimate ones approximate, 

 1-lobed, lanceolate, all biserrated ; lower stipulas large, and 

 nearly orbicular, coarsely serrated ; flowers axillary, drooping ; 

 petals obovate, loose, much shorter than the calyx ; heads of 

 carpels roundish. "%. H. Native country unknown, but cul- 

 tivated in the garden at Geneva. Flowers pale yellow, marked 

 with rose-coloured lines. 



Short-petalled Avens. Fl. June, Aug. Clt. 1818. PL 1| ft. 



20 G. THOMASIA'NUM (Ser. in mem. soc. phys. gen. 2. p. 

 140.) plant pilose; stems erect, 1-3-flowered; radical leaves 

 somewhat interruptedly pinnate ; leaflets nearly equal, obovate, 

 somewhat doubly serrated ; cauline leaves ternate ; the terminal 

 leaflets 3-lobed or lanceolate ; stipulas ovate, doubly serrated ; 

 flowers ascending ; calycine lobes ovate, short ; petals obovate, 

 hardly longer than the calyx ; heads of carpels nearly spherical ; 

 styles appendiculate. I/ . H. Native of the eastern Pyrenees, 

 about Mount Louis. Flowers small, yellow. 



Thomas's Avens. Fl. May, Aug. PL 1 foot. 



21 G. PARVIFLORUM (Commers, ex Smith in Rees's cycl. vol. 

 16. no. 12.) stem few-flowered, tomentose ; radical leaves pin- 

 nate, crenated, longer than the stem ; stipulas dissected ; flowers 

 almost sessile, nodding; calycine segments longer than the 

 corolla; carpels villous. If.. H. Native of the Straits of Magel- 

 lan. Flowers small, white. Allied to G. rivals, according to Smith. 



Small-flowered Avens. PL -j- foot. 



22 G. CALTHIFOLIUM (Menzies, ex Smith, in Rees's cycl. vol. 

 16.) stem erect, few-flowered; radical leaves pinnate ; leaflets 

 acutely-toothed, pilose, terminal one large, roundish-reniform ; 

 cauline leaves round, profoundly-toothed ; calyx erect ; petals 

 ovate-roundish, about equal in length to the calyx ; carpels 

 pilose; styles straight? 7. H. Native of north-west America. 

 Flowers yellow. Perhaps the same as Sieversia radiala. 



Caltha-leaved Avens. PL ^ foot. 



23 G. MAOELLA'NICUM (Comm. ex Pers. ench. 2. p. 57.) 

 scape elongated ; leaves interruptedly pinnate ; terminal leaflet 

 large and lobed, lower ones small. If.. H. Native of the Straits 

 of Magellan. Probably a species of Sieoersia. 



Magellan Avens. PL ^ foot. 



24 G. INVOLUCRA'TUM (Juss. herb, ex Pers. ench. 2. p. 57.) 

 stem 5-flowered ; leaves pinnate ; terminal leaflet roundish and 

 crenated ; flower involucrated by the leaves ; petals white, 

 smaller than the calyx. 1{.. H. Native of the Straits of Ma- 

 gellan. Perhaps the same as G. parvtflorum. 



Involucrated-fiowered Avens. PI. 1 foot. 



25 G. III'SPIDUH (Fries, fl. hall. p. 90. ex Tratt. ros. 3. p. 

 140.) plant hairy ; flowers erect; petals longer than the calyx ; 

 awns of carpels kneed above the middle, hispid, glabrous above ; 

 stigma clavate; radical leaves almost equally pinnate ; cauline 

 leaves pinnatifid. Tf.. H. Native of Sweden. Reichb. icon. 

 rar. cent. 5. t. 3. ex Tratt. Flowers yellow, 2 terminal on 

 long peduncles. 



Hispid Avens. Fl. June, July. PL 1 foot. 



26 G. CAPE'NSE (Thunb. prod. fl. cap. p. 91.) stem erect; 

 radical leaves pinnate ; terminal leaflet large ; cauline leaves 

 tripartite or pinnatifid ; petals roundish, obovate, longer than the 

 calyx ; awns of carpels naked, twisted and kneed in the middle. 

 If.. G. Native of the Cape of Good Hope. Wicks, in acad. 

 handl. 1822. 



Cape Avens. PL 1 foot. 



27 G. JAPONICUM (Thunb. fl. jap. 220.) stem flexuous, 

 hairy; leaves 3-5-lobed, hairy; stipulas ovate, cut; flowers 

 erect ; petals length of calyx ; fruit hairy, ending in naked re- 

 curved awns, y.. H. Native of Japan. Flowers yellow. 



Japan Avens. PL 1 foot. 



t A species not well known. 



28 G. oBLiauuM (Steud. nom. phan. 366.) stem oblique, sim- 

 ple, hairy ; radical leaves pinnate ; outer leaflet very large, ovate, 

 5-parted, crenated ; cauline leaves 3-lobed ; stipulas oblong, 

 toothed ; carpels avvnless. I/ . H. Native country unknown. 

 Caryophyllata obliqua, Mcench, suppl. 280. Waldsteinia Mce'n- 

 chii, Tratt. ros. 3. p. 106. Perhaps a true species of Wald- 

 steinia on account of the want of awns to the carpels. 



Oblique Avens. PL -j to 1 foot. 



Cult. The plants will grow in any common soil, and are easily 

 increased by dividing the plants at the root or by seeds. 



III. SIEVE'RSIA (in honour of M. Sievers, a Russian bo- 

 tanist and traveller). Willd. berl. mag. 1811. p. 397. R. Brown, 

 in Parry, voy. append, p. 276. Adamia, Fisch. in litt. Geum 

 sect. 3. Ore6geum, Ser. in mem. soc. phys. gen. p. 139. 



LIN. SYST. Icosandria, Polygynia. Calyx 10-cleft (f. 70.6.), 

 the outer alternate segments accessory. Petals 5 (f. 70. c.). 

 Stamens numerous. Ovaries indefinite ; ovula ascending. 

 Styles terminal, continuous. Carpels or akenia awned by the 

 whole style (f. 70. d.). Awns feathery (f. 70. d.\ articulated. 

 Embryo erect. Habit nearly of Geum, but differs in the styles 

 being jointed, the superior joint dissimilar to the lower joint, and 

 usually deciduous. Flowers and calyxes erect, never reflexecL 



1 S. ATLA'NTICA ; plant pilose ; stems erect, simple ; leaves 

 interruptedly pinnate ; lower leaflets ovate, toothed, terminal one 

 large, somewhat cordate, biserrated, cauline leaves simple, deeply 

 toothed ; stipulas lanceolate, a little toothed ; flowers ascending ; 

 petals obcordate, longer than the calyx ; heads of carpels sphe- 

 rical, depressed ; styles deflexed, stiff) length of ovaries, which 

 are pilose; tails villous. If,. H. Native of the south of 

 Europe and north of Africa, in woods. Geum Atlanticum, 

 Desf. fl. atl. 1. p. 401. G. sylvaticum, Pourr. act. toul. ex 

 D. C. fl. fr. 5. p. 544. G. biflorum, Brot. fl. lus. 2. p. 533. 

 Flowers large, yellow. 



Atlantic Sieversia. FL June, Aug. Clt. 1810. PL 1 foot. 



2 S. HE'PTANS (Spreng. syst. 2. p. 553.) sterile stems creep- 

 ing, but the floriferous ones are erect, and undivided ; radical 

 leaves interruptedly pinnatifid, larger lobes obovate, profoundly 

 toothed at the apex, smaller ones ovate, entire or tridentate at 

 the apex ; cauline leaves 3-lobed ; flower large, solitary on the 

 top of the stem ; calycine segments elongated, usually trifid at 

 the apex ; petals obcordate, longer than the calyx ; styles spread- 

 ing, very pilose. I/. H. Native on the higher Alps of France, 

 Switzerland, and Germany. Geum reptans, Lin. spec. 717. 

 Jacq. austr. 5. append, t. 22. Adamia reptans, Fisch. Mor. hist. 

 2. p. 431. sect. 4. t. 26. f. 5. Barrel, icon. t. 400. Bocc. 

 mus. t. 128. Flowers large, yellow. 



Var. ft, macrophylla (Ser. in D. C. prod. 2. p. 553.) leaves 

 and stolons large ; leaflets coarsely and doubly serrated. Tf. . H. 

 Native of Vallais, at Gallenstock. 



Creeping Sieversia. Fl. May, Sept. Clt. 1597. PL | foot. 



3 S. ANEMONOIDES (Willd. berl. mag. 5. p. 398.) stems 1- 

 flowered ; stolons creeping ; leaves pinnate, glabrous ; leaflets 

 cuneiform, toothed at the apex ; stipulas filiform ; petals longer 

 than the calyx ; styles bearded. I/ . H. Native of Siberia and 

 Kamtschatka. Dryas pentapetala, Liu. amcen. 2. p. 353. Caryo- 

 phyllata, Kamtschatica, Lam. diet. 1. p. 400. Geum anemo- 

 noides, Willd. spec. 2. p. 1117. Pall. itin. 3. p. 733. t. E. c. f. 

 4. Flowers large, white. 



Anemone-like Sieversia. Fl. June, Aug. Clt. 1775. PL-* ft. 



4 S. ADNA'TA ; stem 1 -flowered, downy ; radicle leaves long, 

 interruptedly pinnate ; leaflets crenately lobed, villous above, and 

 glabrous beneath, ciliated ; cauline leaves small, lower ones rather 



