468 



KOSACEAE (ROSE FAMILY) 



villous ; corymbs slightly villous ; flowers about 1.5 cm. broad ; calyx glabrous, 

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

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

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

 of nutlets 6-7 mm. thick. Columbia R. and tributaiies, e. of Cascade Mts. 

 Fl. May; fr. Aug., Sept. Var. PIP^KI (Britton) Eggleston. Leaves more pubes- 

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

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



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

 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 on 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 ; flesh 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 3-5 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. Jackii 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 ;floio- 

 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. Ont. 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 scarlet ; nutlets usually 



775. C. rotundifolia. 



Var. divrgens Peck. 

 3. Near Albany, N. Y. 



Var. Blanchardi (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. 



