VOL. II.] 



APPLE FAMILY. 



245 



15. Crataegus Vailiae Britton. Vail' s Haw. (Fig. 2005.) 



Crataegus Vailiae Britton, Bull. Torr. 

 Club, 24: 53. 1896. 



A shrub, 3-6 high, the branches 

 stout, light gray; thorns slender. 

 Leaves oval, \ f -$' long, short-peti- 

 oled, pubescent on both sides, but 

 becoming glabrate and slightly shin- 

 ing above, acute at both ends, or 

 some of them obtuse at the apex, 

 sharply serrate nearly all around, 

 sometimes slightly 3-lobed, the peti- 

 oles sparingly glandular, or gland- 

 less; stipules narrow, very glandu- 

 lar; corymbs 2-6- flowered; pedicels 

 and calyx densely pubescent; calyx- 

 lobes lanceolate, 4 // -6 // long, deeply 

 incised, glandular, nearly as long as 

 the petals, reflexed in fruit; pome 

 globose, yellowish green, 4 // -5 // in 

 diameter. 



In thickets, Virginia and North Car- 

 olina. Leaves of young shoots nearly 

 orbicular. May-June. 



7. COTONE ASTER Medic. Phil. Bot. i: 155. 1789. 



Shrubs, with alternate stipulate coriaceous often evergreen leaves, and small white cy- 

 mose or rarely solitary flowers. Calyx-tube adnate to the ovary, the limb 5-lobed, persistent. 

 Petals 5, scarcely clawed. Stamens numerous; filaments mostly subulate. 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. Pyra- 



canth. (Fig. 2006.) 



Mespilus Pyracanlha L. Sp. PI. 478. 1753. 

 Crataegus Pyracantha Medic. Gesch. 84. 1798. 



Cotoneaster Pyracantha Spach, Hist. Veg. 2: 73. 

 1834. 



A shrub, 3-8 high. Spines slender, l / 2 '- 

 \ f long; leaves evergreen, glabrous on both 

 sides, oval or slightly oblanceolate, crenulate, 

 obtuse at the apex, usually narrowed at the 

 base, somewhat shining above, i / -2 / long, 

 short-petioled; cymes terminal, compound, 

 many-flowered; pedicels and calyx pubes- 

 cent; calyx-lobes ovate; flowers about 3" 

 broad; styles 5; fruit scarlet, depressed- 

 globose, about i r/ high, bitter. 



In thickets, escaped from cultivation about 

 Philadelphia and Washington. Native of south- 

 ern Europe and western Asia. May. 



