ROSACEAE (ROSE FAMILY) 



471 



778. C. macrosperma. 



C. uber Ashe.) — Montreal to Wise, s. through w. N. E. to Pa., and in the mts. 

 (ascending to 1800 m.) to N. C. and Tenn. Fl. May ; fr. Sept. 



35. C. macrosperma Ashe. Leaves elliptical-ovate to broadly ovate, rounded 

 to truncate or rarely cordate at the base, 2.5-7 cm. long, 2-7 cm. wide, the lobes 

 acute; corymbs glabrous or slightly villous; flowers 1.5-2 cm. wide; stamens 



5-10(-20) ; styles 2-5 ; /rwjY ellipsoidal orpyri- 

 form, 1-1.8 cm. thick, scarlet to crimson, often 

 glaucous ; nutlets usually 3-4, 6-8 mm. long ; 

 nest of nutlets 6-8 mm. thick. — N. S. and n. 

 Me. to n. Mich, and s. e. Minn., s. to Pa., 

 n. HI., and in the mts. to N. C. and Tenn. Fl. 

 May ; fr. Sept. Fig. 778. Var. pentandra 

 (Sarg.) Eggleston. Leaves sharply cuneate at 

 the base. — Vt. to Va. Var. demissa (Sarg.) 

 Eggleston. Leaves and fruit smaller. — Occa- 

 sional, w. N. E. to n. 111. and w. Va. 



Var. pastbrum (Sarg.) Eggleston. Leaves 

 more nearly entire ; fruit dark crimson. — Low 

 grounds, w. N. E. and N. Y. Var. MAxtiRA 

 (Sarg.) Eggleston. Lobes of the leaves acumi- 

 nate, often recurved. — Range of the typical 

 form. Fr. Aug., Sept. Var. ACuxfLOBA (Sarg.) 

 Eggleston. Lobes of leaves acuminate, re- 

 curved ; leaves of vegetative shoots often cor- 

 date. — Coast of N. S. and N. E. 



36c C. Grayana Eggleston. Leaves flahel- 

 late, 2.5-8 cm. long, 2-7 cm. wide, acuminate, 

 broadly cuneate to truncate at the base, slightly 

 pubescent above, glabrate, the lobes 4-6 pairs, often acuminate, thei?- tips 

 recurved; corymbs slightly villous; flowers about 1.5 cm. wide; calyx-tube 

 vUlous below, the lobes glabrous outside, slightly villous within, somewhat 

 glandular-margined ; stamens about 20 ; styles 3-5 ; fruit subglobose to short- 

 ellipsoidal, angular, dark cherry-red, with reflexed calyx-lobes and thick yellow 

 mealy flesh ; nutlets usually 4-5, 6-7.5 mm. long ; nest of nutlets 6-7 mm. thick., 

 strongly ridged on the back. ((7. flabellata Sarg., not Mespilus flabellata Bosc.) 

 — Montmorency Falls to Montreal, Que., w. N. E. and n. e. N. Y. Fl. May ; 

 fr. Aug., Sept. 



37. C. alnbrum Sarg. Leaves ovate, 3-7 cm. long, 2.5-6.5 cm. wide, broadly 

 cuneate to truncate ; corymbs glabrous; flowers 1.5-2 cm. wide ; stamens about 

 20 ; fruit subglobose, 1.2-1.5 cm. thick, slightly angular, dark cherry-red ; flesh 

 yellow, acid ; the 3-5 nutlets 7-8 mm. long ; nest of nutlets 8-9 mm. thick. (C. 

 Edsoni Sarg.) — N. E. to s. Micl. and Pa. Fl. May ; fr. Sept. 



38. C. populnea Ashe. Leaves broadly ovate to elliptic-ovate, 2.5-6.5 cm. 

 long and wide, broadly cuneate to truncate at the base, those on vegetative shoots 

 usually cordate; corymbs glabrous; flowers 1.5-2 cm. wide; stamens 5-10; 

 styles 2-1; fruit globose to short-ellipsoidal, scarlet, 1-1.5 cm. thick, with ap- 

 pressed or spreading deciduous sepals and yellow flesh ; nutlets usually 3-4, 

 7-8 mm. long ; nest of nutlets 7-8 mm. thick. (C. stolonifera Sarg.) — Occa- 

 sional, s. Ont. to Pa. and Del. Fl. May ; fr. Sept. 



§12. PRUINOSAE Sarg. (Silvicolae Beadle.) Leaves ovate, acute or acumi- 

 nate at the apex, broadly cuneate to truncate (occasionally cordate) at the 

 base, doubly serrate or lobed, membranaceous to subcoriaceous, blue-green, 

 glabrous; petioles slightly glandular, 1-3 cm. long; young foliage usually 

 bronze-green; corymbs many-flowered, glabrous; calyx-lobes deltoid-acu^ 

 minate, often serrate at the base, glumaceous ; stamens 10-20; anthers 

 usually pink ; styles 3-5; fruit usually depressed-globose to short-ellipsoidal, 

 strongly angled, red, prainose, u'ith prominent spreading persistent calyx- 

 lobes and hard thick flesh ; nutlets usually 4-^, strongly ridged dor sally ; 

 nest of nutlets shorter than thick, with deep sinuses between the nutlets. 



