481) KOSACEAE (ROSE FAMILY) 



2. STYLIPUS (Kaf.) T. & (I. >V///r.s- *,,innih ; /<rW nf fruit conspicuously 

 stalked in the calyx," bracelets of the calyx none; otherwise nearly as 1. 



7. G. vSrnum (Kaf.) T. & G. Somewhat pubescent ; steins 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, Ont. to Tenn., Tex., and Kan. 



3. 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, campanulate, the 

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

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

 meadows, Nfd. to Sask., s. to N. J., Pa., Mich., and Col. (En.) 



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 r > 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. triflbrum 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 caly.r, 

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

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

 soil, Lab., Nfd., 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 the long petiole ; stems 1.5-4 din. high, 

 1-6-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. radiatum, var. Gray; Sieversia R. Br.) Exposed slopes, Me., 

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



18. RtTBUS [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. IDAEOBATUS Focke. Prickly-stemmed shrubs; fruit falling off irhnle 

 from a dryish receptacle when ripe ; leaves pinnately 3-7-foliolate. KA-I-- 

 BEKHY. 



1. R. idaSus L. -S'/r///x upright, and with the stalks, etc., beset with stiff 

 straight bristles (or a few becoming weak hooked prickles), glandular win n 

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

 whitish-downy underneath, the lateral ones sessile ; petals as long as tin- .sv/*///.s- ; 

 tft< latter velvety, with or without a few scattered setiform />/vV/r/f.s- ; fruit light 

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



Var. aculeatissimus [C. A. Mey.] Regel & Tiling. (WILD RED H.) Calyx 

 brisfly-liiit/n'd with setiform prickles, (ft. strigosus Michx.) Thickets and 

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



