Genus 6. 



APPLE FAMILY. 



315 



Fig. 2388. 



54- Crataegus pniinosa (Wendl.) K.Koch. Waxy-fruited Thorn. 



C, populifolia Ell. Bot. S. C. & Ga. 1 : i;=;i. 



1S21. Not Walt. 

 Mespilus pruinosa Wendl. Flora 6: 700. 1823. 

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

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



5 : 448. I goo. 



_A shrub or tree, sometimes 20° high, 

 with ascending branches, an irregular crown, 

 and numerous slender spines, I'-zY long. 

 Leaves elliptic-ovate to broadly ovate, i'- 

 2i' 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 sometiriies 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. 



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'-2f' 

 long, i'-2l' 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. Gard. 1 : 448. 



March 1900. Not Guild. 

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



Soc. 17^: II. 1 90 1. 

 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'-Zi' long, l'-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 

 S-io; 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. 



