464 



ROSACEAE (rose FAMILY) 



hroarl ; cohjx-tnhp piihpsrcnt, its lobes less so ; stainens nan ally ahniit 20; an- 

 iliers white to pink ; fruit yellow (var. aurea Ait.) or red (var. uubra Ait.), 

 1.2-2.5 cm. thick ; nutlets usually 3-4, 8-9 mm, long; nest of nutlets &-10 mm. 

 thick. — Falls of Montmorency, Que., to s. e. Minn., s. (through w. N. P2.) to Pa., 



n. 111., and la., and along the mts. to n. Ga. ; 



ascending in X. C. to about 18U0 m, Fl. 



May, June ; fr. Oct. Fig. 770. Var. 



caxescexs Britton is a more canescent 



form occasionally seen. 



9. C. suborbiculata Sarg. Leaves ovate- 

 orbicular, 2-7 cm. long, 2-6 cm. wide, 

 memhranaceons, dull dark green above, gla- 

 brous ; petioles winged above, glandular ; 

 corj^mbs glabrous ; flowers about 2 cm. 

 broad ; calyx-lobes slightly glandular-mar- 

 gined ; stamens about 20 ; anthers rose- 

 colored ; styles 4-5 ; fruit globose or com- 

 pressed-globose, 1-1.5 cm. thick, dull green 

 to scarlet ; calyx somewhat prominent ; 

 flesh yellow, containing commonly 5 nutlets 

 (6-7.5 mm. long) ; nest of nutlets 8-10 mm. 

 thick. — Limestone ridges in the region of 

 Montreal. Fl. May, June ; fr. Oct. 



10. C. collina Chapm. Leaves obovate 

 to oval, 2-6 cm. long, 1.5-5 cm. wide, yellow- 

 green, somew^hat pubescent when young; 

 petioles slightly pubescent, winged ; corymbs 

 and calyx pubescent; flowers 1.5-2 cm. 

 wide ; calyx-lobes glabrous or slightly pu- 

 bescent inside, glandular-ciliate ; stamens 



about 20 ; anthers yellow ; styles 3-5 ; fruit globose or compressed-globose, dull 

 red, 9-12 mm. thick; calyx somewhat prominent; calyx-lobes persistent; flesh 

 yellow, dry; nutlets usually 5, 6-7 mm. long; nest of nutlets 8-10 mm. thick. 

 — Common, s. w. Va. to centr. Ga. and n. Miss. Fl. May; fr. Oct. 



Var. s6rdida (Sarg.) Eggleston. Corymbs rather few-flowered ; flowers 

 2.5-3.5 cm. broad; anthers pink ; nutlets 3-4. — Occasional, s. e. Mo. Fl. May; 

 fr. Oct. 



Var. Lettermani (Sarg.) Eggleston. Stamens about 10; fruit subglobose or 

 pyriforin, orange-red. — Occasional, s. e. Mo. Fl. May ; fr. Oct. 



§ 4. VtRIDES Beadle. Leaves oblong-ovate to oval, obtuse, acute, or acumi- 

 nate (often ?>-lobed) at the apex, cuneate at the base, serrate or doubly ser- 

 rate or lobed, dark green, shining, and glabrous above, paler and somewhat 

 pjibescent along the veins beneath, iistially membranaceous ; petioles 1-3 cm. 

 long, slightly winged above; corymbs few-many-flowered, glabrous; calyx- 

 lobes entire or slightly glandular-margined, triangular to lanceolate- acumi- 

 nate ; stamens 10-20; anthers yellov) ; , styles 2-5; fruit glabrous, red, 

 subglobose to ellipsoidal; flesh hard; mttlets 3-5 (2 in no. 11), ridged on 

 the back; trees or large shrubs, 6-11 m. high, with ascending or nearly 

 erect branches, dark brown bark, and straight spines 2-5 cm. long. 



770. C. punctata. 



Nutlets 2 ; fruit large, 8-15 mm. thick ; lobes of the leaves crenate 

 Nutlets 3-0 ; fruit small, 5-9 mm. thick ; lobes dentate. 



Fruit brisrht red, glaucous, 4-6 mm. thick .... 



Fruit dull dark red, 6-9 mm. thick 



11. C. Margaretta. 



12. C. viridis. 



13. C. nitida. 



11. C. Margaretta Ashe. Leaves 2-6 cm. long, 2-4 cm. wide, obtuse or acute 

 at the apex, crenate-lobed, slightly pubescent when young; glabrate ; corymbs 

 5-12-flowered, slightly pubescent at first; flowers 1.5-2 cm. wide ; calyx-lobes 

 sliglitly pubescent inside ; styles l-l^ ; fruit dull rusty green to red, 8-15 mm. 

 thick ; flesh yellow, dry and mealy ; nutlets usually 2, about 6 mm. long, about 



