470 



KOSACEAE (ROSE FAMILY) 



777. C. Marshallii. 



31. C. Marshallii Eggleston. The only species 

 of the section. (Mcspilus apiifolia Marsh. ; C. apii- 

 folia Michx., not Medic.) Along streams and 

 about swamps in the lowlands, s. Va. to Fla., w. to 

 Mo. and Tex. FIG. 777. 



11. TENUIF6LIAE Sarg. Leaves ovate, serrate, 

 doubly serrate, or lobed, acute or acuminate, 

 slightly villous but glabrate, dark yellow-green 

 above, paler beneath ; petioles slender, 1.5-3 cm. 

 long; young foliage usually bronze-green; 

 corymbs many-flowered; calyx-lobes lanceolate- 



?^}ffil X "^i^ X acuminate, usually entire (often glandular- 



W^Vf 1 if margined}, slightly pubescent inside; stamens 



5-20 ; anthers usually pink ; styles 2-5 ; fruit 

 ellipsoidal, ovoid, or pyriform, red, glabrous, 

 with rather persistent erect or spreading calyx- 

 lobes and succulent edible flesh ; nutlets usually 

 3-4, strongly ridged on the back ; shrubs or small trees, 2-7 m. high, with 

 ascending branches and strong curved spines 2-7 cm. long. This section 

 is the most troublesome of any in our range, specific lines being here 

 particularly hard to draw. 



Fruit ellipsoidal, ovoid, or pyriform. 

 Calyx-lobes serrate. 



Leaves broadly ovate, flabellate, the lobes reflexed 32. C. crudelis. 



Leaves oblong-ovate, the lobes spreading or ascending . . . . 33. C. lucorum. 

 Calyx-lobes entire. 

 Fruit small, 6-9 mm. thick, with rather firm flesh ; leaves conspicuously 



lobed 34. C. roanensis. 



Fruit large, 1-1.8 cm. thick, with soft flesh ; leaves not conspicuously 



lobed 85. C. maerosperma. 



Fruit compressed-globose or subglobose. 



Lobes of the leaves reflexed ; leaves flabellate 36. C. Grayana. 



Lobes of the leaves spreading or ascending. 



Terminal leaves cuneate or rounded at the base 37. C. alnorum. 



Terminal leaves cordate 38. C. populnea. 



32. C. crudSlis Sarg. Leaves ovate to broadly ovate, 3-7 cm. long, 2.5-6 cm. 

 broad, sharply lobed (the tips of the lobes often recurved}, broadly cuneate or 

 truncate, rarely cordate at the base, slightly villous above, becoming scabrate 

 or glabrate; corymbs slightly villous at first; flowers 1.5-2 cm. wide; calyx- 

 tube and inside of the lobes slightly villous ; stamens about 10 ; styles 3-5 ; fruit 

 ellipsoidal, 8-12 mm. thick, scarlet or crimson ; the 3-5 nutlets 6-8 mm. long ; 

 nest of nutlets 6-8 mm. thick. (Mespilus flabellata Bosc, not C. flabellata 

 Heldreich ; C. blandita Sarg. ) Caughnawaga Reservation to Falls of Montmo- 

 rency, Que. Fl. May ; fr. Sept. 



33. C. lucbrum Sarg. Leaves oblong-ovate to broadly ovate, 3-6 cm. long, 

 2-5 cm. wide, acute or acuminate at the apex, broadly cuneate or rounded at 

 the base, finely and doubly serrate or lobed; corymbs slightly villous; flowers 

 about 2 cm. broad ; calyx glabrous except for a slight pubescence on the inner 

 surface of the lobes ; stamens about 20 ; anthers small, deep pink ; styles 4-5 ; 

 fruit pyriform-ellipsoidal, crimson, 1.5-2 cm. long. Occasional, n. 111. and 

 s. e. Wise. Fl. May ; fr. Sept. 



Var. insolens (Sarg.) Eggleston. Styles 3-5 ; fruit ellipsoidal, scarlet, gla- 

 brous, 1-1.2 cm. long ; flesh rather firm ; nutlets usually 3-4, 6-7 mm. long ; 

 nest of nutlets 6-7 mm. thick. Rare, n. e. Vt. 



34. C. roanSnsis Ashe. Leaves ovate or oblong-ovate, 2.5-7 cm. long, 2-6 

 cm. wide, with 3-6 pairs of acute usually straight lobes, the base broadly cuneate 

 to cordate; corymbs glabrous or slightly villous; flowers about 1.5 cm. wide; 

 calyx-lobes slightly villous inside ; stamens 5-20, usually 5-10 ; styles 2-5 ; fruit 

 7-9 mm. thick, 9-13 mm. long, crimson ; flesh rather firm ; nutlets 6-8 mm. 

 long; nest of nutlets 6-7 mm. thick. (C. fluviatilis Sarg. ; C. ascendens Sarg. : 



