GENUS 6. 



APPLE FAMILY. 



3'5 



54. Crataegus pruinosa (Wendl.) K.Koch. Waxy-fruited Thorn. Fig. 2388. 



C. populifolla Ell. Bot. S. C. & Ga. i : 553. 



1821. Not Walt. 



Mespilus pruinosa Wendl. Flora 6: 700. 1823. 

 C, pruinosa K. Koch. Hort. Dend. 168 1853. 

 C. Porteri Britton, Bull. N. Y. Bot. Gar. i: 



5 : 448. 1900. 



A shrub or tree, sometimes 20 high, 

 with ascending branches, an irregular crown, 

 and numerous slender spines, i'-2-J' long. 

 Leaves elliptic-ovate to broadly ovate, i' 

 2\' long, i'-2i' wide, acute or acuminate at 

 the apex, abruptly cuneate, rounded or oc- 

 casionally cordate at the base, serrate or 

 doubly serrate with 3 or 4 pairs of broad 

 acute lobes towards the apex, membranous, 

 glabrous, blue-green; corymbs glabrous; 

 flowers about 10" broad ; stamens 10-20 ; 

 anthers pink or sometimes yellow ; styles 

 and nutlets usually 4 or 5 ; fruit depressed- 

 globose to short-ellipsoid, strongly angled, 

 pruinose, apple-green becoming scarlet or 

 purple, 6"-8" thick ; calyx-tube prominent, 

 the lobes spreading, entire, persistent. 



Rocky open woods, western New England to 

 Michigan, North Carolina and Misouri. May ; 

 fruit ripe October. 



v " 55. Crataegus Kelloggii Sargent. Kellogg's 



Thorn. Fig. 2389. 

 C. Kelloggii Sarg. Trees & Shrubs i : 117. 1903. 



A small tree, sometimes 25 high, with erect branches, 

 rough bark and occasional straight spines, i' long. 

 Leaves broadly ovate to suborbicular, rounded at the 

 apex, broadly cuneate or truncate at the base, ii'-2|' 

 long, i'-2i' wide, serrate or doubly serrate with broad 

 lobes above the middle, dark yellow-green, slightly pu- 

 bescent, becoming glabrate above, pubescent along the 

 veins beneath; petioles slender, villous when young; 

 corymbs pubescent ; flowers about 7" broad ; calyx 

 slightly villous, the lobes glabrous outside, nearly entire ; 

 stamens about 20; anthers red; styles and nutlets usu- 

 ally 5 ; fruit subglobose to short-ovoid, bright yellow, 

 io"-i2" thick; calyx-lobes spreading. 



Occasional in bottom-lands of the River Des Peres, 

 Carondelet, Mo. April ; fruit ripe September. 



56. Crataegus villipes Ashe. Thin-leaved Thorn. Fig. 2390. 



Crataegus Holmesiana Ashe, Journ. E. Mitch. Soc. 16 : 78. 



Feb. 1900. Not C. Holmesii Lesq. 

 Crataegus tenuifolia Britton, Bull. N. Y. Bot. Card. 1 : 448. 



March 1900. Not Guild. 

 Crataegus Holmesiana var. villipes Ashe, Journ. E. Mitch. 



Soc. iy 2 : ii. 1901. 

 C. villipes Ashe, Ann. Carn. Mus. I : 388. 1902. 



A tree, sometimes 30 high, with strongly ascending 

 branches, the thorns i4'-2i' long. Leaves elliptic-ovate, 

 acute or acuminate at the apex, cuneate at the base, 

 i '-3i' long, \'-2.\' wide, serrate or doubly serrate with 

 4-6 pairs of acute or acuminate lobes with tips usually 

 reflexed, pubescent, or at length scabrous above, pu- 

 bescent along the veins beneath ; corymbs glabrous or 

 slightly pubescent ; flowers about 8" broad ; stamens 

 5-10; styles and nutlets usually 3 or 4; fruit pyriform 

 or ellipsoid, crimson, about 6" thick, the calyx-lobes 

 enlarged, erect, persistent. 



Maine and Quebec to central Michigan, south in the 

 mountains to North Carolina. May ; fruit ripe August- 

 September. 



