4«0 ROSACEAE (rose FAMILY) 



§2. STYLIPUS (Raf.) T. & G. Styles smooth; head of fruit conspicuously 

 stalked in the calyx; bractlets of the calyx none; otherwise nearly as § 1. 



7. G. Y^rnum (Raf.) T. & G. Somewhat pubescent ; stems ascending, few- 

 leaved, slender ; root-leaves roundish-heart-shaped, 8-5-lobed, or some of them 

 pinnate, with the lobes cut ; petals yellow, about tlie length of the calyx; recep- 

 tacle smooth. — Thickets, Ont. to Tenn., Tex., and Kan. 



§ 8. CARYOPHVF.lATA [Tourn.] Ser. Style jointed and bent in the middle, 

 the upper joint plumose ; flowers large ; calyx erect or spreading ; jietals erect. 



8. G. rivale L. (\Yatp:r or Purple A.) Stems nearly simple, several-flow- 

 ered, <) dm. high ; root-leaves lyrate and interruptedly pinnate, those of the stem 

 few, 8-foliolate or 3-lobed ; flowers nodding ; calyx purplish, campanulate, the 

 lobes in nnthesis 6-10 mm. long ; petals dilated-obovate, retuse, contracted into 

 a claw, purplish- orange; head of frait stalked, its pedicel erect. — Bogs and wet 

 meadows, Xfd. to Sask., s. to N. J., Pa., Mich., and Col. (Eu.) 



X G. pulchrum Fernald. Hirsute, 6-8 dm. high ; in habit and foliage similar 

 to the preceding ; flowers smaller ; lobes of the purple calyx 4-5 mm. long, 

 widely spreading ; petals clear golden yellow, obovate, less contracted at base ; 

 styles rich carmine. — Boggy meadows, Bic, Kimouski Co.. Que. ; also Mendon, 

 Vt. (Eggleston) ] Alberta. — Apparently a hybrid of G. macrophyllum and 

 G. rivale. 



§4. SIEVERSIA (Willd.) T. & G. Style not jointed, wholly persistent and 

 straight; head of fruit sessile; flowers large; calyx erect or spreading. 

 {Flowering stems simple, and bearing only bracts or small leaves.) 



P. G. triflbrum Pursh. Low, softly hairy ; root-leaves interruptedly pinnate ; 

 leaflets numerous and crowded, oblon.g- wedge- form, deeply cut-toothed ; flowers 

 3 or more on long peduncles ; bractlets linear, longer than the purple calyr, 

 as long as the oblong purplish erect petal x ; styles very long (o cm.) strongly 

 plumose in fruit. (G. ciliatum Pursh ; Sieversia ciliata G. Don.) — Calcareous 

 soil. Lab., Xfd., Watertown, N. Y. (Crawe). Ont., Wise, 111., and westw. 



10. G. P6ckii Pursh. Smoothish ; root-leaves rounded-kidney-shaped, radiate- 

 veined, 5-12 cm. broad, doubly or irregularly cut-toothed and obscurely 5-7- 

 lobed, with a set of minute leaflets down tiie long petiole ; stems 1.5-4 dm. high, 

 l_5_flowered ; bractlets minute; petals yellow, round-obovate and more or less 

 obcordate, exceeding the calyx (1 cm. long), spreading ; styles naked except at 

 the base. {G. radiatmn, var. Gray; Sieversia R. Br.) — Exposed slopes, Me., 

 and alpine summits of White Mts., N. H. 



18. RUBUS [Tourn.] L. Bramble 



Calyx 5(3-7)-parted», without bractlets. Petals 5, deciduous. Stamens nu- 

 merous. Achenes usually many, collected on a spongy or succulent receptacle, 

 becoming small drupes ; styles nearly terminal. — Perennial herbs, or somewhat 

 shrubby plants, with white (rarely reddish) flowers, and usually edible fruit. 

 (The Roman name, kindred with ruber, red.) 



§ 1. II)AE(')RATUS Focke. Prickly-stemmed shrubs; fruit falling off whole 

 from a dryish receptacle when ripe ; leaves pinnately S-1 -foliolate. Rasp- 



BKRRV. 



1. R. idaeus L, Stems upright, and with the stalks, etc., beset with stiff 

 straight bristles (or a few l)ecoming weak hooked prickles), glandular when 

 young, somewhat glaucous ; leaflets 3-5, oblong-ovate, pointed, cut-serrate, 

 whitish-downy underneath, the lateral ones sessile , petals as long as the sepals , 

 the latter velvety, with or without a few scattered setiform prickles; fruit liaht 

 red. — Thickets, e. Que., L. Superior reirion, and Rocky Mts. (Eurasia.) 



Var. aculeatlssimus [C. A. Mey.] Regel & Tiling. (Win) Rkd R.) Calyx 

 bristly-hispid with setiform prickles. (7?. strigosns Michx.) — Thickets and 

 hills, Lab. to B C, s. to N. J., Pa., Great L. region, and along the mts. to N. C, 



