KOSE FAMILT. 125 



heart-shaped ; flowers racemod, rather large, with short bracts ; fruit oblong 

 or cyhudrical. 



B. Canadensis, Low B. or Dewberry. Rocky and sandy soil : long- 

 trailing, slightly prickly, smooth or smoothish, and with 3-7 smaller leaflets 

 than m the foregoing, the racemes of flowers with more leaf-like bracts, the fruit 

 of fewer grains and ripening earlier. 



R. cuneifbllus. Sand B. Sandy ground and barrens from N. Jersey S. : 

 erect, l°-3° high, with stout hooked prickles ; the branchlets and lower surface 

 of the 3-5 wedge-obovate thickish leaves whitish-woolly; peduncles 2-4- 

 flowered. 



R. trividlis, Southekn Low B. Sandy soil from Virginia S. ; trailing 

 or creeping, bristly and prickly ; the smooth partly evergreen leaves of 3 - 5 

 ovate-oblong or lance-oblong leaflets ; peduncles 1 - 3-flowered. 



* « Stems scarcely woody but lasting over winter, whoUy prostrate: fruit sour. 



R. hispidus. Running Swamp B. Low woods, &c. N. : with very long 

 and slender running stems, beset with small reflexed prickles, sending up short 

 leafy and flowering shoots ; leaves of mostly 3 obovate blunt smooth and shin- 

 ing leaflets, of firm and thickish texture, somewhat evergreen ; flowers small and 

 few on a leafless peduncle ; fruit of few grains, red or purple. 



§ 4. Flowering Bkamble : cultivated for the flowers only. 



R. rossefolins, from China, called Bkiek Rose. Cult, in greenhouses 

 and apartments, has pinnate leaves, and bears a succession of full-double white 

 flowers resembling small roses. 



11. AIiCSiEMIIiIiA. (Name said to come from the Arabic.) A minute 

 annual species, A. arvensis, called Pakslet Piekt in England, has got 

 introduced in Virginia, &c. 



A. vulgaris, Ladt's Mantle, from Europe, is cult, in some gardens ; 

 it is a low herb, not showy, with somewhat downy rounded slightly 7 - 9-lobed 

 leaves chiefly from the root, on long stalks, and loose corymbs or panicles of 

 small light green flowers, through the summer. ^ 



12. AGRIMbWIA, AGRIMONY. (Old name, of obscure meaning.) 

 Weedy herbs, in fields and border of woods, producing their small yellow 

 flowers through the summer ; the fruiting calyx, containing the 2 akenes, 

 detached at maturity as a small bur, lightly aiUieriug by the hooked bristles 

 to the coats of animals. 1^ 



A. Supatdria, Common A. Principal leaflets 5-7, oblong-obovate and 

 coarsely toothed, with many minute ones intermixed ; petals twice the length 

 of the calyx ; stamens 10-15. 



A. parvifldra, chiefly S., has smaller flowers, 11 - 19 lanceolate principal 

 leaflets, and 10- 15 stamens. 



A. inclsa, only S., has 7-9 oblong or obovate and smaller principal leaf- 

 lets, small flowers, and 5 stamens. 



13. POTEBIUM, BURNET. (Old Greek name, of rather obscure appli- 

 cation.) ^ 



P. Sanguis6rba, Garden or Salad B. Common in old gardens, from 

 Europe : nearly smooth, growing in tufts ; leaves of many small ovate and 

 deeply toothed leaflets ; stems about 1° high, bearing a few heads of light 

 green or purplish monoecious flowers, in summer, the lower flowers with nu- 

 merous drooping stamens, several of the uppermost with pistil, the style ending 

 in a purple tufted stigma. 



P. Canaddnse, or Sanguis6kea Canadensis, Canadian or Wild B. 

 Wet grounds N. : 3° - 6° high, nearly smooth, with numerous lance-oblong 

 coarsely-toothed leaflets often heart-shaped at base, and cylindrical spikes of 

 white perfect flowers, in late summer and autumn ; stamens only 4, their long 

 white filaments club-shaped. 



