ROSACEiE. I. Dryas. II. Gelm. 



525 



ate3 by a style, which at length becomes a feathery tail (f. 69. 

 e.). Seed ascending. — Humble sufFruticose herbs, with simple 

 permanent leaves, which are clothed with white tomentura be- 

 neath. Flowers white, or yellow. 



1 D. octope'tala (Lin. spec. 

 717.) leaves ovate or subcordate, 

 crenately serrated. Jj . H. Na- 

 tive of Europe on the Alps, and 

 of Siberia. In Scotland, as in 

 Breadalbane, Isle of Sky, Perth- 

 shire, Rosshire, Sutherland, and 

 Argyleshire ; in Ireland, between 

 Gort and Gallaway, and near 

 Sligo ; in England, on Amdif- 

 clowder, in Littendale, and near 

 Settle in Yorkshire, Smith, eng. 

 hot. 451. Oed. fl. dan. t. 31. 

 This delicate evergreen plant, with 

 its white flowers and germander- 

 like leaves, is a great ornament to 

 alpine heights. 



Eight-petalled Dryas. Fl. Ju. 

 Aug. Britain. Shrub prostrate. 



FIG. Qd. 



•->?'>iXi 



1 G- Caxade'nse (Murr. comm. goet. 5. p. 33. t. 4. but 

 not of Jacq.) stem erect, rough, dichotomous; radical leaves in- 

 terruptedly pinnate, the terminal leaflet large, nearly orbicular, 

 3"5-lobed, and crenated ; cauline leaves quinately and ternately 

 pinnate, with the leaflets lobulate and toothed ; stipulas ovate, 

 3-5-lobed ; peduncles elongated ; petals orbicular, retuse, length 

 of the calyx ; head of carpels obovate; ovaries pilose, very nu- 

 merous ; styles glabrous, but vvith the appendages pilose. % . H. 

 Native of North America. G. strictum. Ait. hort. kew. ed. 1. 

 vol. 2. p. 217. Petals yellow, 



Canadian Avens. Fl. May, June. Clt. 1778. PL \^ foot. 



2 G. STiii'cTUM (Pursh, fl. amen sept. 1. p. 35 L) hairy; 

 leaves all interruptedly pinnate, the terminal leaflet the largest ; 

 leaflets ovate, toothed ; stipulas cut ; the 5 outer calycine seg- 

 ments linear and short ; petals nearly orbicular, longer than the 

 calyx ; awns of carpel naked and hooked. 1/ . H. Native of 

 North America, from Canada to New York, in dry wet meadows 

 and bogs. G. Allepicum, Jacq. icon. rar. 1. t. 93. Flowers 

 large, yellow and striped. 



Straight Avens. Fl. May, July. Clt. 1778. PL 2 feet. 



3 G. macrophy'llum (Willd. enum. 557.) stem erect, rough, 



f)ilose, dichotomous ; radical leaves interruptedly pinnate ; leaf- 

 ets nearly orbicular, terminal one cordate, large, andbiserrated; 



2 D. Drummondi (Richards, mss. Hook, in hot. mag. t. cauline leaves bluntly 3-lobed and serrated ; stipulas ovate, 3-5- 

 2972.) leaves elliptic, rather attenuated at the base, deeply ere- toothed or nearly entire ; peduncles when bearing the flowers 

 nated, clothed with white tomentum beneath, and on the scapes ; very short, but when bearing the fruit they are much elongated ; 

 calycine segments ovate. ^ . H. Native of North America, petals obcordate, longer than the calyx ; heads of carpels ovate- 

 orbicular; ovaries very pilose; styles smoothish, but with the 



Native of Kamtschatka. 



Canada, and the Rocky Mountains as far as Slave Lake. D. 

 octopetala, Pursh, fl. amer. sept. 1. p. 350. D. chamsedrifolia, 

 Richards in FrankL journ. append, p. 740. Flowers yellow. 

 An elegant plant when in flower. 

 Drummond's Dryas. FL June, July. Clt. 1800. Sh. pros. 



3 D. iNTEGRiFoLiA (VahL act. soc. hafn. 4. p. 2. p. 151.) 

 leaves quite entire, acute, cordate at the base. ^ . H. Native 

 of Greenland. Oed. fl. dan. 1216. Flowers white, very like 

 those of the first species. 



Entire-leaved Bryas. Fl. June, Aug. Clt. 1810. Sh. pros. 



4 D. tene'lla (Pursh, fl. amer. sept. 1. p. 350.) leaves small, 

 ovate, acute, quite entire, cordate at the base, flat, clothed with 

 ^nite tomentum beneath. ^ . H. Native of North America, in 



Clt. 1804. PL lift, 



appendages pilose at the base. 1^. H. 

 Flowers yellow. 



Large-leaved Avens. Fl. June, July. 



4 G. heterophv'llum (Desf. hort. par. D. C. prod. 2. p. 

 550.) stem erect, flexuous, beset with spreading pili, dichoto- 

 mous ; radical leaves bluntly 3-lobed ; cauline ones somewhat 

 pinnate ; the leaflets cuneiform, lobulate, and toothed ; stipulas 

 oval, profoundly toothed ; peduncles short and stiff; petals ob- 

 ovate, about equal in length to the calyx ; heads of carpels 

 spherical, quite glabrous ; styles with short appendages. 1/ , H. 

 Native country unknown. Flowers white ? 



Far. /3, elongatum (Ser. in D. C. prod. 2. p. 550.) peduncles 



Wew Hampshire, Rocky Mountains, &c. D. integrifolia, Hook.- elongated ; appendages of styles longer and rather pilose ; lobes 



£xot. fl. t. 220. but not of VahL D. integrif61ia var. /3, tenella, of leaves more acute. 



D. C, prod. 2. p. 550. Flowers white, one-half smaller than Variable-leaved Avens. Fl. May, July. Clt. 1816. PL 



1 -^ foot. 



5 G. interme'dium (Besser, cat. hort. crem. ex D, C. prod. 

 2. p. 550. but not of Willd.) stem erect, beset with spreading 



^ ^ , _ pili; radical leaves interruptedly pinnate ; leaflets ovate-oblong, 



"^cy are grown in pots in the same kind of soil, and placed coarsely biserrated, terminal one large and 3-5-lobed; cauline 



"lose of the last species. An elegant plant when in flower. 



Slender Dryas. FL June, Aug. Clt. 1820. Sh. proc. 



Cult. Dryas is a genus of elegant little evergreen, prostrate 

 plants ; they thrive best in a border of peat soil, and sometimes 



among other alpine plants. They are usually increased by di- 

 viding the plants at the root, and sometimes by seed. 



H- GE'UM (from yevw, gewo, to give a relish ; roots of G. 

 ^rbanum). Lin. gen. 864. Lam. ilL 443. Nestl. pot. p. 16. 



Lin. syst. Icosdndria, Polygynla. Calyx with a concave 

 ^^he, and a lO-cleft limb, the 5 outer segments accessory. 

 Stamens numerous. Carpels dry, disposed in a head, ending 

 ^ch in a style, which at length becomes kneed. Seed as- 

 cending. — Herbs, with variously dissected leaves, the terminal 

 *obe or leaflet always larce. Flowers usually yellow or copper- 

 <^oWed, red or white. 



leaves somewhat interruptedly pinnate or ternate ; leaflets of the 

 upper leaves rhomboid-lanceolate, and4;oarsely toothed ; stipulas 

 ovate, deeply toothed ; peduncles when bearing the fruit much 

 elongated ; petals orbicular, length of the calyx ; heads of car- 

 pels obovate-globose ; ovaries very pilose ; styles glabrous, but 

 with the appendages pilose. %. H. Native of Volhjnia and 



Altaia, in shady places. Flowers yellow. 



Intermediate Avens. FL June, July. Clt. 1820. 



PL H ft- 



6 G. VirginiaVum (Lin. spec. 716.) stem branched, pilose; 

 radical leaves quinately pinnate, cauline ones ternate ; leaflets 

 lanceolate-cuneiform, toothed, the uppermost leaves 1-Iobed, 

 and very acute; stipulas ovate, toothed; peduncles when in fruit 

 much elongated, filiform, and divaricate ; petals obovate, shorter 



Sect, \. Caryophylla'strum (Caryophyllus, the name of the than the calyx ; heads of carpels spherical ; carpels few, pilose; 

 ^ovepink; the roots of C wr^nwrn have a taste like cloves), 

 ^er. in mem. soc. gen. 2. p. 138. D. C. prod. 2. p. 550. Flowers 

 J*<^ending. Calyx reflexed. Styles deflexed, kneed. Appen- 



8^* for the most part shorter than the styles. 



styles elongated, and are, as well as the appendages, pilose. 

 %. H. Native of Virginia and Carolina. This species comes 

 very near G. urbanum, and differs from it principally in the small 

 white flowers, and in the leaflets and stipules being narrower. 



