Oedbr 47.— ROSBWORTS. 199 



16 R. damasoe'na. Damask B. Monthly B. Sepals reflexed in flower. Flowers 



very double, t 



17 R. alba. White B. Sepals pinnatifid, spreading. Fls. oorymbed, large, t 

 18 R. moscha'ta. Music B. Leallets lanceolate, pointed. Fls. panioled, large, white. + 



1 9 R. In'dioa. Chinese Monthly. Bengal R. Tea Base, cfec. Lfts. ovate, pointed, t 

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



21 R. eglante'ria. Yellow Base. Lfts. broad-oval. Petals obcordate, fugacious. + 



22 R. Gal'Iica. French B. Leaflets elliptical. Petals large, spreading, t 

 28 E. PimpinelMfo'lia. Burnet B. Lfts. small, roundish. Mowers small, t 



6. GE'UM. Avens. 



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

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

 sistent style. — y Leaves pinnate or lyrate. 



§ Style bent and jointed near the middle a 



§ Style straight and not j ointed, whoUy persistent. Eare 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, 8 



1 Gr. Ylrginia'num. Petals white, as long as the calyx. Eeceptacle hairy. 

 2 Gr. macrophyl'lum. Mountain A. Lvs. ending with a very large roundish leaflefe, 

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



4 G. vemum. Bead-stalk A. Petals yellow, small. Stalk as long a& head. W. 



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



6 G. trilio'rnm. Bractlets longer than the calyx or ^M;-y&A petals. Fls. 8. W. 



7 a. Peck'ii. Beckys A. Bractlets minute. Pet. yellow. Stem almost leafless. Mts. 



1. EU'BUS. Bramble. Blackberries and Raspberries. 



Calyx 5-parted, without bractlets. Petals 5, deciduous. Stamens oo . 

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

 . into a compound fruit. — Half-shrubby plants with H roots and ® stems, 

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

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

 does not. 



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



* Leaves compound, pf 8-7 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 



