ROSACEAE (ROSE FAMILY) 476 



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

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

 (C. 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 shallowlij 

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

 yellow-green; 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- 

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

 Vt. and n. e. N. Y. Var. LOBULiiA (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 beneath, membranaceous ; 

 corymbs glabrous or slightly villous ; flowers 1.5-2 cm, 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 usually 4-5, 

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

 n. 111., s. to Pa. and Del. Fl. May ; fr. Sept. Var. EllwansekiAna (Sarg.) 

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

 Similar range. 



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

 or broadly cuneate at the base, 3-9 cm. long and wide, membranaceous, 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 0-8 mm. thick. — Occasional, w. N. E. to s. Mich., s. to 

 Del. Fl. May ; fr. Sept. Var. TatnalliXna (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 Iobed, yellow-green, subcoriaceous or membranaceous ; petioles 

 2-4 cm. long, pubescent or tomentose ; young foliage yellow-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; nutlets 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 caneate at the base. 

 Lobes of the leaves shallow, broad, acuminate ; Mass. and Ot. . .64. C. Amoldiana 

 Lobes deep, narrow, acute. 

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

 aceous , 55. (7. canadeitHe 



Fruit elllpsoidal-pyrlform ; calyx obscure ; leaves membranaceous . 56. 0. submoUin, 

 Leaves on the vegetative shoots cordate. 

 Leaves 4-13 cm. long, 4-10 cm. wide, rugose, membranaceous; western 57. G.molMs. 

 Leaves 8-11 cm. long, 8-9 cm. wide, plane, subcoriaceous ; Ghamplaln 

 Valley .... 58. 



54. C. Arnoldiina Sarg. Leaves broadly ovate to oval, S-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 



