472 



ROSACEAE (rose FAMILY) 



shrubs or trees, S-8 m. high, icith irregular ascending branches and numer 

 ous curved chestnut-brown spines 3-6 cm. long. — Rocky woods. 



Fruit conspicuously angled, strongly pruinose. 



Leaves usually cuneate 



Leaves cordate . . . . ■ • • 

 Fruit without conspicuous angles, slightly pruinose. 

 Leaves ovate, cuneate or cordate. 



Leaves usually cordate ..... 

 Leaves usually cuneate. 



Lohes of leaves shallow, acute 

 Lobes of leaves deep, acuminate . 

 Leaves elliptic-ovate, cuneate .... 



39. C. pruinosa. 



40. C. deltoides. 



41. C. silvicola. 



42. r. heaia. 



43. C. leiophylla. 



44. C. Jesupi. 



.39. C. pruinosa (Wendl.) C. Koch. Leaves elliptic-owa^e to broadly ovate, 

 2.5-6 cm. long and wide, membranaceous; flowers about 2 cm. wide; stamens 



about 20 ; anthers pink, rarely yellow ; fruit 

 apple-green, becoming scarlet or purple, 1.2- 

 1.5 cm. thick; flesh yellow, sweet; nutlets 

 6-8 mm. long ; nest of nutlets 8-9 mm. thick. 

 — Common, w. N. E, to s. Wise, Mo., Va., 

 and s. in the mts. Fl . May ; f r. Oct. , Nov. 

 Fig. 779. Forma dissona (Sarg.) Eggleston. 

 Stamens 10. — With the typical form. 



Var. latisepala (Ashe) Eggleston. Leaves 



more nearly entire ; fruit reddish-brown. 



779. C. pruinosa. 



(C. cognata Sarg.) — With the typical form. 

 Var. PHiLADELPHicA (Sarg.) Eggleston. 

 Leaves with more acuminate lobes, those on 

 vegetative shoots usually cordate. {C.fusca 

 Sarg.) — Range of typical form. 



Var. conjuncta (Sarg.) Eggleston. Fruit 

 less angular and not highly colored ; anthers 

 light yellow. — Range of typical form. 



Var. Porteri (Britton) Eggleston. Fruit 

 pyriform, reddish-brown. — Pocouo Mt, and 

 adjacent reirion, e. Pa. 



40. C. deltoides Ashe. Leaves broadly 

 ovate, 3-7 cm. long and broad, abruptly 

 acuminate at the apex, cordate or truncate 

 at the base, with 4-6 pairs of broad acumi- 

 nate lobes ; flowers about 2 cm. broad ; 

 stamens about 10 ; fruit depressed-globose, bright red, 1-1.5 cm. thick; flesh 

 yellow ; nutlets 6-7 mm. long ; nest of nutlets 8-10 mm. thick. — Dutchess Co., 

 N. Y., and e. Pa. Fl. May ; fr. Oct. ' 



41. C. silvicola Beadle. Leaves triangular-ovate, 2-7 cm. long, 2-6 cm. wide, 

 rounded, truncate, or on vegetative shoots cordate at the base, incisely lobed ; 

 flovjer.'i about 1.5 cm. wide ; stamens 10 ; fruit globo.se, 1-1.1 cm. thick, slightly 

 angular, red; the .3-5 nutlets 6-8 mm. long; nest of nutlets 7-8 mm. thick. — 

 N. Ala. and n. w. Ga. 



Var. Beckwithae (Sarg.) Eggleston. Leaves sharply lobed ; flowers about 2 

 cm. wide ; fruit subglobose to compressed-globose, cherry red, 1.2-1.5 cm. 

 thick ; nutlets 6-8 mm. long ; nest of nutlets 8-10 mm. thick. (C. Bobbinsiana 

 Sarg. ■; C. sequax Ashe.) — Frequent, w. N. E. to s. Mich., and s. to Pa. Fl. 

 May ; f r. < )ct. 



42. C. beata Sarg. Leaves 3-8 cm. long, IJy-l cm. wide, broadly cuneate 

 to truncate at the base, acutely lobed, membranaceous, dull ; flowers about 2 cm. 

 wide ; stamens about 20 ; fruit short-fllipsoidal, slightly angular, crimson, 

 slightly pruinose, 1-1.5 cm. thick ; the 4-5 nutlets 0-8 mm. lonir ; nest of nutlets 

 9-1] mm. thick. — Occasional, w. N. Y. and s. Ont. Fl. May ; fr. Oct. 



Var. c6mpta (Sarg.) Eggleston. Leaves on vejjetative shoots sometimes 



subcordate, subcoriaceous ; flowers about 1,5 



Fl. May ; fr. Oct. 



cm. wide ; stamens 7-10 ; nutlet* 



3-4. — Similar range 



