206 THE FLORA. 



le E. damasce'na. Damask K. Monthly E. Sepals reflexcd in flower. Flowers 

 very double, f 



17 R. alba. White R. Sepals pinnatifid, spreading. Fls. corymbed, large. + 

 18 R. moscha'ta. Mask R. Leatlets lanceolate, pointed. FLs. panicled. large, white, t 



19 R. In'dica. C/dnese Monthly. Bengal R. T«aRnse^<kc. Lfts. ovate, pointed, f 

 20 R Alpi'na. Boursaiilt R. Lfts. 5-11, obovate, sharp-serrate. Stipules narrow, t 



21 R. eglante'ria. Yellow Rose. Lfts. broad-oval. Petals obcordate, fugacious, "f 



22 R. Gariica. French R. Leaflets elliptical. Petals large, spreading. + 



23 R. Pimpinellifo'lia. Burnet R. Lfts. small, roundish. Flowers small, t 



6. GE'UM. Avens. 



Calyx 5-cleft, usually with 5 alternate bractlets outside. Petals 5. 

 Stamens many, collected on a dry receptacle, and bearing the long, per- 

 sistent style. — IX Leaves pinnate or lyrate. 



§ Style bent and jointed near the middle a 



§ Style straight and not jointed, wholly persistent. Bare plants 6, 7 



a Head of fruits quite sessile, with the styles finally hooked. . . .b, 1 

 a Head of fruits stalked in the calyx more or less 4, 5 



b Petals yellow, longer than the calyx 2, 3 



1 G-. Virginia''num. Petals white, as long as the calyx. Receptacle hairy. 



2 G. macrophyl'lum. Mountain A. Lvs. ending with a very large roundish leaflet. 



3 G-. stric'tum. Yellow A. The end leaflet but little larger than the rest. Height 3-5f 



4 Gr. vemum. Head-stalk A. Petals yellow, small. Stalk as long as head. W. 



5 G. riva'le. Water A. Whole flower dark purple, large, nodding. 



6 G-. triflo'rum. Bractlets longer than the calyx or ^?(!/p^wA petals. Fls. 3. W. 



7 Gr. Peck'ii. Peck^s A. Bractlets minute. Pet. yellow. Stem almost leafless. Mts. 



7. RU'BUS. Bramble. Blackberries and Raspberries. 



Calyx 5-parted, without bractlets. Petals 5, deciduous. Stamens cx> . 

 Ovaries many, becoming many pulpy, drupe-like achenia (grains) united 

 into a compound fruit. — Half-shrubby plants with % roots and (a) stems, 

 armed with prickles. Flowers mostly white. In the Blaclcberries the 

 pulpy receptacle constitutes a part of the fruit, but in the Easpberries it 

 does not. 



* Leaves simple, 3-5-lobed. Flowers large 1-3 



* Leaves compound, of 3-7 leaflets a 



a Stems stout, upright, often recurved at top b 



a Stems weak, trailing or prostrate 7 



b The side leaflets stalked. Prickles strong, recurved. . ..8 

 b The side leaflets sessile. Prickles weak, nearly straight. . . .4 



