472 



EOSACEAB (rose FAMILY_) 



shrubs or trees, 3-8 m. high, with irregular ascending branches and numer 

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



Fruit conspicuously angled, slroiigly pruinose. 

 Leaves usually cuneate .... 



Leaves cordate 



Fruit without conspicuous angles, slightly pruinose. 

 Leaves ovate, cuneate or cordate. 



Leaves usually cordate 



Leaves usually cuneate. 

 Lobes of leaves shallow, acute 

 Lobes of leaves deep, acuminate . . 

 Leaves elliptic-ovate, cuneate .... 



39. C. prv/inoaa. 



40. C. dettaidea. 



41. O. sil^icola. 



42. O. bmla. 



43. C. leiopUylla. 



44. o.r 



39. C. pruinbsa (Wendl.) C. Koch. Leaves elliptic-o^afe to broadly ovate, 

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



abont 20 ; anthers pinli, rarely yellow ; fruit 

 apple-green, becoming scarlet or purple, 1 .2- 

 1.6 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. !F1. May ; fr. Oct., Nov. 

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

 Stamens 10. — With the typical form. 



Var. latisSpala (Ashe) Eggleston. Leaves 

 more nearly entire ; fruit reddish-brown. 

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

 Var. PHiLADELPHicA (Sarg.) Eggleston. 

 Leaves with more acuminate lobes, those on 

 vegetative shoots usually cordate. {O.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. PortSri (Britton) Eggleston. Fruit 

 pyriform, reddish-brown. — Pocono Mt. and 

 adjacent region, 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, i-l cm. long, 2-6 cm. viiie, 

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

 flowers about 1.5 cm. wide; stamens 10 ; fruit globose, 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 Eobbinsiana 

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

 May ; fr. Oct. 



42. C. beHta Sarg. Leaves 3-8 cm. long, 2.5-7 cm. wide, broadly cuneate 

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

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

 slightly pruinose, 1-1.5 cm. thick ; the 4-5 ^nutlets 6-8 mm. long ; nest of nutlets 

 9-11 mm. thick. —Occasional, w. N. Y. and s. Ont. Fl. May ; fr. Oct. 



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

 suboordate, subcoriaceous ; flowers about 1 . 5 cm. wide ; stamens 7-10 ; nutlets 

 ?-4. — Similar range. Fl. May ; fr. Oot. 



779. C. pruinosa. 



