522 FLORA. 



surfaces, especially along the veins, calyx and pedicels pubescent. Leaves broadly 

 ovate, or nearly orbicular, narrowed, or some of them somewhat truncate at the base, 

 sharply and unequally serrate, subacute, 6-10 cm. long ; petioles 2-3 cm. long, 

 mostly a little shorter than the pedicels; young fruit very pubescent; mature fruit 

 subglobose, green to yellow, I cm. or rather more in diameter, green. Pa. to 

 N. Car.. Ala. and Mo. May. 



25. Crataegus carapestris Britton. Mature leaves firm, densely and finely 

 pubescent and prominently straight- veined beneath, dull and with short scattered 

 hairs above, 6-9 cm. long and nearly as wide, sharply and somewhat irregularly 

 serrate. Thorns stout, 4-6 cm. long; pedicels slender, pubescent ; fruit globose, 

 I 1.5 cm. in diameter, pubescent when young. Mo. and Kans. 



26. Crataegus tomentosa L. PEAR-THORN. PEAR HAW. (I. F. f. 2002.) 

 A shrub or small tree. Spines stout, 2-6 cm. long; leaves petioled, broadly oval 

 or ovate-oval, acute or acutish at the apex, narrowed or cuneate at the base, 

 sharply dentate or somewhat lobed, not glandular, slightly scabrous above, pubes- 

 cent, especially along the veins beneath, 5~*3 cm - l n g: twigs, petioles and calyx 

 tomentose-pubescent ; flowers about 12 mm. broad ; calyx-lobes lanceolate, usually 

 incised; styles 3-5; fruit dull red, oval to oval-pyriform, over I cm. long. In 

 thickets, Ont. to N. J., Ga., Mich, and Mo. May-June. 



27. Crataegus Chapmani (Beadle) Ashe. CHAPMAN'S THORN. A small 

 tree, similar to C. tomentosa, but the leaves smaller and thicker in texture; flowers 

 about 1.5 cm. wide; fruit smaller, short-oval, I cm. high or less, bright red. Va. 

 to Ga. and Mo. May-June. 



28. Crataegus pyriformis Britton. PEAR-FRUITED THORN. Twigs light 

 gray. Leaves broadly oval or obovate-oval, dull, 6-8 cm. long, when mature 

 glabrous above, pubescent, especially on the veins beneath, rather finely serrate 

 nearly all around, not lobed, the blade decurrent into the petiole; pedicels slender; 

 fruit pyriform, about I cm. long. Monteer. Mo., B. F. Bush, 1899. 



29. Crataegus flava Ait. SUMMER OR YELLOW HAW. (I. F. f. 2003.) A tree, 

 with maximum height of about 7 m., usually very thorny. Leaves obovate, petioled, 

 irregularly glandular-dentate at the apex, narrowed or cuneate and often entire at 

 the base, 1-4 cm. long, pubescent on both sides or at length glabrate; pedicels and 

 calyx pubescent; flowers 1-2 cm. broad; styles commonly 5; fruit globose or some- 

 what pyriform, 1-1.5 cm - * n diameter. In sandy thickets, Va. to Fla., Mo. and 

 Tex. April-May. 



30. Crataegus uniflora Muench. DWARF THORN. (I. F. f. 2004.) A shrub, 

 or sometimes a small tree. Spines numerous, slender, 2-5 cm. long; leaves obo- 

 vate, coriaceous, nearly sessile, obtuse and crenate at the apex, cuneate and entire 

 at the base, 1-4 cm. long, more or less pubescent, or glabrate and at length shining 

 above; twigs, pedicels and calyx pubescent; flowers 8-10 mm. broad; calyx-lobes 

 lanceolate, deeply incised, glandular; styles commonly 5; fruit globose or pyriform. 

 1-1.6 cm. in diameter, yellow. In sandy soil, S. N. Y. to Fla., W. Va., Mo. and 

 La. April-May. 



31. Crataegus Vailiae Britton. VAIL'S HAW. (I. F. f. 2005.) A shrub, 

 the branches stout, light gray; thorns slender. Leaves oval, 2-8 cm. long, short - 

 petioled, pubescent on both sides, but becoming glabrate and slightly shining above, 

 sharply serrate, sometimes slightly 3-lol>ed; stipules narrow, glandular; corymbs 

 2-6-flowered; pedicels and calyx densely pubescent; calyx-lobes lanceolate, 8- 

 12 mm. long, deeply incised, glandular, reflexed in fruit; pome globose, yellowish 

 green, 8-10 mm. in diameter. In thickets, Va. and N. Car. to Mo. May-June. 



7. COTONEASTER Medic. 



Shrubs, with stipulate coriaceous leaves, and small white cymose or rarely soli- 

 tary flowers. Calyx-tube adnate to the ovary, the limb 5 -lobed, persistent. Petals 

 5, scarcely clawed. Stamens numerous. Ovary 2-5 -celled or of 2-5 carpels, 

 separate at the summit; styles 2-5; ovules 2 in each cavity or carpel, alike, erect. 

 Pome ovoid, globose or top-shaped, the carpels bony when mature. [Name neo- 

 Latin, Quince-star or Star-quince.] About 20 species, natives of the Old World. 



i. Cotoneaster Pyracantha (L.) Spach. EVERGREEN OR FIRE THORN. 

 PYRACANTH. (I. F. f. 2006.) A shrub. Spines slender, 1-2.5 cm - lon g; leaves 

 evergreen, glabrous, oval or slightly oblanoeolate, crenulate, obtuse at the apex, 



