ROSACEA!-: (r.osE family) 463 



from shallow to deep, have all the appearance of natural hybrids between these 

 two species. (C persimilis Sar<^. ; C pi'iinij'olia of European gardens, in part.) 

 — Occasional. 



3. C. pratensis Sarg. Leaves ovate-orhicular^ 2-6 cm. long, 2-5 cm. wide, 

 coarsely or doubly serrate ; flowers about 1 cm. wide ; calyx-Johes remotely 

 (llandidar-serrate^ glabrous; stamens about 10; anthers yellow or pink; stylts 

 2-3 ; fi'uit short-ovoid to compressed-globose, dull reddisli-gieen ; flesh somewhat 

 succulent, mealy, yellow ; nutlets 2-3, about 5 mm. long ' nest of nutlets about 

 5 mm. thick. (C. Palmeri Sarg.; C. grandis Ashe.) — Low rich soil, 111. and 

 Mo. Fl. May ; fr. Oct. 



4. C. Canbyi Sarg. Leaves oblong-obovate, 2.5-8 cm. long, 2-6 cm. wide, 

 doubly serrate; otten lobed toward the apex; corymbs glabrous; flowers about 

 1.5 cm. wide; styles 3-5; fruit short-ellipsoidal to globose. ]-L5 cm. long, 

 dark crimson; flesh bright red, succulent ; the :]-5 nutlets 7 S mm. long; nest 

 of nutlets 6-7 mm. thick. (C. Pennypackeri Sars.) — Occasional, e. Pa. and 

 Md. Fl. May ; fr. Oct. 



5. C. feciinda Sarg. Leaves oblong-obovate to oval, 3-9 cm. long, 2-7 cm. 

 wide, doubly serrate, the veins strongly marked ; coryml s slightly villous : 

 flowers about 2 cm. wide; calyx-lobes co?irse]y glandvlar-serrate ; stamens about 

 10 ; anthers purple ; styles 2-4 ; fruit short-ellipsoid to subglobose, 2-2.5 cm. 

 long, orange-red. slightly pubescent; calyx-lobes erect; flesh thick; nutlets 

 usually 2-3, 8-10 mm. long; nest of nutlets 8-10 umi. thick. — Rich bott* m 

 lands, s. w. Ind. to s. e. Mo. Fl. May; fr. Oct. 



6. C. berberifblia T. & G. Leaves oblong-cuneiform, spattdate, or obovate, 

 2-6 cm. long, 1—4 cm. ^vide, rounded or acute and serrate toward the apex, 

 rough-pidiescent above, white-pubescent or -tomentose beneath ; petioles 1 cm. 

 long, densely tomentose ; corymbs densely villous ; flowers about 1.5 cm. wide ; 

 calyx-lobes slightly villous; stamens about 20; anthers yelh'V: ; styles 2-3; 

 fruit subglobose, about 1 cm. thick, orange or red, slightly pubescent; flesh 

 yellow; nutlets '2-ij, about 6 mm. long ; nest of nutlets about 6 mm. thick. — 

 Gulf States. — A specimen from Mercersburg, Pa. (Porter) appears intermediate 

 between this and the following. 



Var. Engelmanni (Sarg.) Eggleston. Less pubescent; stamens about 10; 

 anthers pink. — Va. and Mo. Fl. May; fr. Oct. 



§ 3. PUNCTAtAE Loud. Leaves obovate to oblong, impressed-veined and 

 usually rather didl above, mostly pidtescent I eneath ptarticularly along the 

 veins, acute or acuminate at the apex, sharply ^uneate at the base, serrate, 

 doubly serrate, or slightly lobed, but nearly entire tov:ard the base, subcoria- 

 ceous ; petioles 1-2. cm. long, slightly winged above ; corymbs many-flowered ; 

 calyx-lobes lanceolate-acuminate, entire or sometimes glandidar-margined ; 

 stamens 10-20; styles '2-b ; fruit green, yelloic, or red ; flesh hard, thick; 

 calyx usually flattened ; nutlets 2-5, ridged on the back ; flat-topped trees, 

 3-10 m. high, with grayish-brown bark ; spines straight, 2-7 cm. long. 



Fruit ellipsoidal, glabrous ; nutlets usualh- 3-4. 



Leaves brig-ht yellow-grreen above ; nest of nutlets longer than thick . T. C. pausiaca. 



Leaves dull gray-green above ; nest of nutlets about as long as thick . 8. Cpuncicda. 

 Fruit globose, glabrous or pubescent : calyx somewhat prominent ; nutlets 4-5. 



Fruit glabrous, green to scarlet; Canadian 9. C. suhorhicvlata. 



Fruit villous, red ; southern 10. C. colUna. 



7. C. pausiaca Ashe. Leaves oblanceolate-obovate, 3-6 cm long, 1.5-4 cm. 

 wide, dark virid yellow-green and glabrous above; corymbs pubescent ; flowers 

 1.2-1.5 cm. wide; calyx glabrous, its lobes slightly pubescent inside; stamens 

 10-15; anthers dark pink; fruit ellipsoidal-pyriform, about 8 mm. thick, dull 

 brick-red; flesh greenish-yellow; nutlets usually 3, 7-10 mm, long; nest of 

 nutlets 6-10 mm. thick. — Abundant in Pa. — Intermediate between C. Crus- 

 galli and C. punctata, and to be expected wherever these two species are found. 

 Fl. May ; fr. Oct. 



8. C. punctata Jacq. Leaves 2-8 cm. long, 1-5 cm. broad, didl gray-green 

 aw fZ strongly impressed-veined above ; corymbs tomentose ; flowei-s about 2 cm 



