476 



ROSACEAE (ROSE FAMILY) 



781. C. Arnoldiana. 



calyx-lobes ; flesh yellow, acid ; nutlets 8-9 

 cm. long ; nest of nutlets 9-10 mm. thick. 

 Rare, e. Mass, and w. Ct. Fl. May ; fr. 

 Aug. FIG. 781. 



55. C. canadSnsis Sarg. Leaves ovate, 

 broadly cuneate to truncate at the base, 

 acutely lobed toward the apex, 3-8 cm. long, 

 2.5-7.5 cm. wide, subcoriaceous ; flowers 

 about 2 cm. wide ; stamens about 20 ; fruit 

 short-ellipsoidal to subglobose, crimson, 

 1-1.5 cm. thick, with rather prominent calyx, 

 spreading persistent calyx-lobes and yellow 

 mealy flesh ; nutlets usually 5, about 7 mm. 

 long ; nest of nutlets 9-10 mm. thick. 

 Region of Montreal. Fl. May ; f r. Sept. , Oct. 



56. C. subm6llis Sarg. Leaves ovate, 

 broadly cuneate, acutely lobed, 4-11 cm. 

 long, 3-9 cm. wide, mfmbranaceous, yellow- 

 green ; flowers about 2.5 cm. wide ; stamens 

 about 10 ; fruit short-ellipsoidal to pyri- 

 form, orange-red, 1.5-2 cm. thick, with 

 persistent calyx and yellow subacid flesh ; 

 nutlets strongly ridged on the back. 6-8 

 mm. long ; nest of nutlets 7-9 mm. thick. 

 Falls of Montmorency, Que., to s. Ont., 



B. to Me., Mass., and Albany, N. Y. Fl. May ; fr. Sept. 



57. C. m611is (T. & G.) Scheele. Leaves broadly ovate, 4-13 cm. long, 

 4-10 cm. wide, cordate to truncate at the base, slightly rugose, meinbranaceous, 

 densely tomentose below, with narrow acute lobes ; flowers about 2.5 cm. wide ; 

 stamens about 20 ; fruit short-ellipsoidal to subglobose, scarlet, 1.5-2.5 cm. thick, 

 with deciduous calyx-lobes and yellow flesh ; nutlets usually 5, 7-8 mm. long ; 

 nest of nutlets 9-10 mm. thick. (C. coccinea, var. T. & G.) Common, s. Ont. 

 to e. S. Dak., e. Kan., and s. to Ky. Fl. May; fr. Aug., Sept. 



Var. sfcra (Sarg.) Eggleston. Leaves oblong-ovate ; fruit pyriform-ellipsoidal, 

 dull dark red. Occasional, s. Ont., s. Mich., and u. 111. Fl. May ; fr. Oct. 



58. C. champ lainnsis Sarg. Leaves 3-11 cm. long, 3-9 cm. wide, subcori- 

 aceous' stamens about 10; fruit short-ellipsoidal to pyriform, bright scarlet ; 

 calyx rather prominent, its lobes spreading, persistent ; nutlets strongly ridged 

 on the back, 7-8 mm. long ; nest of nutlets 8-10 mm. thick. Montreal I., s. 

 through the Champlain Valley. Fl. May ; fr. Sept., Oct. 



15. CORDATAE Beadle. Leaves ovate- 

 triangular, simply or doubly serrate 

 (often conspicuously 3-5-7o6ed), acu- 

 minate at the apex, rounded to cordate 

 at the base, 2-8 cm. long and wide, 

 bright green above, paler beneath, gla- 

 brous ; petioles 1.5-5 cm. long, slender ; 

 corymbs many-flmcered, glabrous ; 

 flowers about 1 cm. wide,' calyx-lobes 

 deltoid, entire, pubescent on the mar- 

 gin; stamens abmit2Q; anthers pink ; 

 styles 4-5 ; fruit depressed-globose, 

 4-6 mm. thick, scarlet, with deciduous 

 calyx-lobes and thin firm flesh ; nut- 

 lets 5, 3-4 mm. long, 2-2.5"mm. thick, 

 smooth on the back ; apex bare ; si- 

 nuses between the nutlets shallow; shrubs or small trees, 5-9 m. tall, with 

 nearly erect branches and grayish-brown scaly bark ; twigs chestnut-brown; 

 thorns 2-5 cm. long. 



C. phsenopyrum. 



