468 



KOSACBAB (ROSE FAMILY) 



villous ; corymbs slightly villous ; flovfers about 1 . 6 cm. broad ; calyx glabrous, 

 its lobes triangular-acuminate., slightly villous inside, often red-tipped ; stamena 

 about 10 ; styles 2-5 ; fruit scarlet, short-pyriform, 8-12 mm. long ; calyx- 

 lobes persistent; flesh glutinous; nutlets usually 3-4, 6-8 mm. long; nest, 

 of nutlets 6-7 mm. thick. ■ — Columbia R. and tributaries, e. of Cascade Mts. 

 !F1. May; fr. Aug., Sept. Var. PipiKi (Britton) Eggleston. Leaves more pubes- 

 cent ; corymbs varying from slightly to densely pubescent ; fruit pubescent. — 

 With the typical form westvrard, but extending e. to s. Minn, and L. Superior. 



Var. BrunetiUna (Sarg.) Eggleston. Leaves often ovate, 2-9 cm. long, 2-i 

 cm. wide ; corymbs slightly pubescent ; calyx-lobes lanceolate-acuminate. — 

 Nfd. to L. Superior., s. to N. S. and centr. Me. Fl. June ; fr. Sept. 



X ? C. laurentiana Sarg. Similar to var. Piperi, but usually with 4-5 nutlets " 

 with occasional shallow pits ou their ventral faces. — A possible hybrid, occurring 

 near Montreal. 



24. C. MacaulSyae Sarg. Leaves ovate or oval, 4-6 cm. long, 3.5-5 cm. 

 wide, acute, abruptly cuneate or rounded at the base, membranaceous, glabrous, 

 dull dark green ; corymbs glabrous; flowers 1.6-1.8 cm. broad ; calyx glabrous, 

 its lobes pubescent inside ; stamens about 20 ; anthers small, yellow ; styles 4-5 ; 

 fruit subglobose to short-ellipsoidal, dark crimson, 1-1.2 cm. thick ; calyx promi- 

 nent ; ilesh thin, yellow, dry ; the 4-5 nutlets 7-8 mm. long ; nest of nutlets 7-8 

 mm. thick. — Occasional, w. N. Y. Fl. May ; fr. Oct. 



25. C. Oakesiana Eggleston. Leaves ovate to broadly ovate, acute or acumi- 

 nate, gradually or abruptly cuneate, slightly pubescent above, becoming glabrate, 

 3-7 cm. long, 3-6 cm. wide, doubly serrate toward the apex; corymbs slightly 

 villous ; flowers about 2 cm. wide ; calyx villous, its lobes glabrous outside, 

 slightly villous inside ; stamens about 20 ; anthers yellow ; styles 3-5; fruit 

 pyriform-ellipsoidal, slightly angular, yellowish-red, about 1 cm. thick ; sepals 

 deciduous ; flesh soft, mealy, light yellow ; the 3-6 nutlets 6-7 mm. long ; 

 nest of nutlets 7-8 mm. thick. — Valley of the Connecticut, n. e. Vt. Fl. 

 May ; fr. Aug., Sept. 



26. C. J4ckii Sarg. Leaves ovate-orbicular to obovate, 3-6 cm. long, 2.5-5 

 cm. wide, acute, cuneate to rounded at base, dull dark green above, slightly 



pubescent, glabrate ; corymbs slightly villous ; flow- 

 ers 2-2.5 cm. wide ; calyx glabrous, its lobes sharply 

 glandular-serrate, slightly pubescent inside ; stamens 

 5-10 ; anthers yellow ; styles 2-3 ; fruit ovoid-ellip- 

 soidal, 1-1.5 cm. thick, dull dark red, prominently 

 angled; flesh thick, reddish ; the 2-3 nutlets 7-9 mm, 

 long ; nest of nutlets 9-10 mm. thick. (C rotun- 

 data Sarg. ) — Isle of Montreal to s. Out. Fl. May ; 

 fr. Sept._ 



27. C. irrasa Sarg. Leaves ovate to elliptical, 

 acute, broadly cuneate, or truncate at base, with 

 4-6 pairs of acute lobes, 3-6 cm. long, 3-6 cm. wide, 

 membranaceous, slightly pubescent, becoming gla- 

 brous above, pubescent beneath, particularly along 

 the veins ; corymbs slightly villous ; flowers about 

 1.5 cm. wide ; calyx villous, its lobes slightly villous 

 inside ; stamens about, 20 ; styles 3-5 ; fruit sub' 

 globose to short-ellipsoidal, slightly angled, sparingly 

 pubescent, dull red, about 1 cm. thick, with persistent 

 calyx-lobes and reddish flesh ; the .3-5 nutlets 6-8 

 mm. long ; nest of nutlets 8-10 mm. thick. — Isle of 

 Montreal and Montmorency Falls, Que. Fl. May; 

 fr. Sept. 

 Corymbs more villous ; fruit scai'let ; nutlets usually 



775. C. rotundlfolia. 



Var. divfirgens Peck. 



3.— Near Albany, N. Y. 



Var. Blanchirdi (Sarg.) Eggleston. Corymbs and calyx more villous than in 

 the typical form ; anthers pink ; fruit dark cherry -red. — Deerfield Valley, Vt. 



28. C. rotundifblia Moench. Leaves ovate-orbicular or obovate, 3-5 cm. 



