486 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, 3-5-lobed, or some of them 

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

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



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

 the upper joint plumose ; flowers large ; calyx erect or spreading ; petals erect, 



8. G. rivale L. (Water or Purple A.) Stems nearly simple, several-flow- 

 ered, 6 dm. high ; root-leaves lyrate and interruptedly pinnate, those of the stem 

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

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

 a claw, purplish- or ang e ; head of fruit stalked, its pedicel erect. — Bogs and wet 

 meadows, Nfd. 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, Rimouski 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.^ 



9. G. trifl5rum Pursh. Low, softly hairy ; root-leaves interruptedly pinnate ; 

 leaflets numerous and crowded, oblong-wedge-form, deeply cut-toothed ; flowers 

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

 as long as the oblong purplish erect petals; styles very long (6 cm.) strongly 

 plumose in fruit. (G. ciliatum Pursh ; Sieversia cih'ata G. Don.) — Calcareous 

 soil, Lab., Nfd., Watertown, N, Y. (Craice), 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 the long petiole ; stems 1.5-4 dm. high, 

 1-5-flowered ; bractlets minute ; petals yelloio, round-obovate and more or less 

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

 the base. (6r. radiatum, var. Gray ; Sieversia R. Br.) — Exposed slopes, Me., 

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



18. RtlBUS [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, 

 becomhig 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. IDAE6bATUS Focke. Prickly-stemmed shrubs; fruit falling off whoh 

 from a diyish receptacle when ripe; leaves pinnately S-7-foliolate. Rasp 



BERRY. 



1. R. ida§us L. Stems upright, and with the stalks, etc., beset with stiff 

 straight bristles (or a few becoming 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 vplvety, with or without a few scattered setiform prickles ; fruit light 

 "ed. — Thickets, e. Que., L. Superior region, and Rocky Mts. (Eurasia.) 



Var. aculeatfssimus [C. A. Mey.] Regel & Tiling. (Wild Red R.) Calyx 

 bristly-hispid with setiform prickles. (B. strigosjis Michx.) — Thickets and 

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



