ROSACEAE (ROSE FAMILY) 475 



Var. dilatata (Sarg.) Eggleston. Corymbs 7-12-flowerecl ; flowers about 

 ^.5 cm, broad ; fruit with less prominent calyx, the calyx.-lobes more deciduous. 

 (O. speciosa Sarg.) — Montreal I. to R. I., and w. to Mo. Fl. May ; fr. Sept, 



51. C. Pringlei Sarg. Leaves concave, ovate to oval, 3-8 cm. long, 2.5-7 cm. 

 wide, obtuse at the apex, rounded or abruptly cuneate at the base, very shalloicly 

 lohed, pubescent but glabrate above, pubescent along the veins beneath, bright 

 yellow-yreen ; petioles 1-3 cm. long, pubescent; corymbs pubescent; flowers 

 about 2 cm, wide ; stamens about 10 ; styles 3-5 ; fruit short-ellipsoidal to pyri- 

 form, red, pubescent, about 1.5 cm. thick, with persistent spreading calyx-lobes 

 and yellow acid edible flesh; nutlets 7-9 mm, long; nest of nutlets 7-9 mm. 

 thick, — Common, w, N. E. to n. 111., s. to Pa. Fl. May ; fr. Sept. Var. ex- 

 cLijSA (Sarg.) Eggleston. Leaves less concave ; corymbs densely pubescent. — 

 Vt. and n. e. N. Y. Yar. lobtlata (Sarg.) Eggleston, Leaves more deeply 



-cut, (C cristata Ashe.) — With the typical form. 



52. C. pedicellata Sarg. Leaves broadly ovate, 3-10 cm. long, 3-9 cm. wide, 

 acute or acuminate at the apex, broadly cuneate to truncate at base, slightly 

 pubescent becoming scabrous above, nearly glabrous benrath, membranaceous ; 

 corymbs glabrous or slightly villous ; flowers 1.5-2 cui, wide ; calyx glabrous, 

 its lobes slightly villous on the upper side ; stamens 10-20 ; styles 3-5 ; fruit 

 pyriform to short-ellipsoidal, scarlet, glabrous, 1.5-2 cm. thick, with rather per- 

 sistent erect or spreading calyx-lobes and dry mealy flesh ; nutlets u.sually 4-5, 

 7-8 mm. long ; nest of nutlets 8-10 mm. thick. — Frequent, s. Ct. to s. Ont. and 

 n. Ill,, s. to Pa, and Del. Fl, May ; fr. Sept. Yar. Ellwangeriaxa (Sarg.) 

 Fggleston has densely villous corymbs, fruits slightly villous, and nutlets 3-5, — 

 Similar range, 



53. C. polita Sarg, Leaves broadly ovate to oblong-ovate, cordate, truncate, 

 or broadly cuneate at the base, 3-9 cm. long and wide, riiembranaceous, gla- 

 brous when mature, yellow-green; corymbs glabrous; flowers 1.5-2 cm. wide; 

 calyx glabrous, its lobes slightly pubescent above ; stamens 5-10 ; styles 3-4 ; 

 fruit subglobose to short-ellipsoidal-pyriform, glabrous, cherry-red, 1-1.5 cm. 

 thick, with deciduous calyx-lobes ; nutlets sharply ridged on the back, 6-8 mm. 

 long; nest of nutlets 6-8 mm, thick, — Occasional, w. N. E. to s, Mich., s, to 

 Del. Fl. May ; fr, Sept. Yar, Tatxalliaxa (Sarg.) Eggleston, Leaves 

 slightly pubescent; corymbs, calyx, and fruit villous ; nutlets 3-5, — With the 

 typical form. 



§ 14. m6lLES Sarg. Leaves large, ovate, pubescent or tomentose becoming 

 scabrate above, acute at the apex, broadly cuneate to cordate at base, doubly 

 serrate or lobed, yellow-green, subcoriaceous or membranaceous ; petioles 

 2-4 cm. long, pubescent or tomentose ; young foliage yelloic-green ; corymbs 

 many -flowered, densely tomentose ; calyx-lobes glandular-serrate, somewhat 

 tomentose; stamens 10-20; anthers yellow; styles 3-5; fruit large, red, 

 pubescent, globose, ellipsoidal, or pyriform, with swollen erect or spreading 

 calyx-lobes and thick soft edible flesh ; millets usually 4-5, slightly ridged 

 on the back; nest of nutlets with deep sinuses; round-topped trees, some- 

 times 13 m. high, with curved spines 3-5 cm. long. 



Leaves on vegetative shoots cuneate at the base. 

 Lobes of the leaves shallow, broad, acuminate ; Mass. and Ct, . . 54, C. Arnoldiana. 

 Lobes deep, narrow, acute. 

 Fruit globose or nearly so ; calyx rather prominent ; leaves subcori- 

 aceous . . * . 55. <7. canadensis. 



Fruit ellipsoidal-pyriform ; calyx obscure ; leaves membranaceous . 56. C. submollis. 

 Leaves on the vegetative shoots cordate. 



Leaves 4-1-3 cm. long, 4-10 cm. wide, rugose, membranaceous ; western 57. C. mollis. 

 Leaves 3-11 cm. long. 3-9 cm. wide, plane, subcoriaceous; Champlain 



Valley 58. t'. champlainensis. 



54. C. Arnoldiana Sarg. Leaves broadly ovate to oval, 3-10 cm. long, 2.5- 

 8.5 cm. wide, broadly cuneate to truncate at the base, with broad shallow acu- 

 minate lobes; flowers about 2 cm. wide ; stamens about 10; fruit globose or 

 subglobose, 1.5-2 cm. thick, bright crimson, with scarcely enlarged spreading 



