GENUS 6. 



APPLE FAMILY. 



299 



6. Crataegus Canbyi Sargent. Canby's Thorn. Fig. 2340. 



?Crataegus elliptica Ait. Hort. Kew. 2: 168. 1789. 

 Mespilus elliptica Hayne, Dendr. Fl. 78. 1822. (Guimpel, 



Otto and Hayne Abbild. Deutsch. Holz. pi. 144. 1819- 



1830.) 



Crataegus Canbyi Sarg. Bot. Gaz. 31 : 3. 1901. 

 C. Pennypackeri Sarg. Bot. Gaz. 35: 100. 1903. 



A small tree, 20 high, with somewhat ascending 

 branches. Spines straight, i'-2' long ; leaves oblong-ovate, 

 i '-3' long, f '-2^' wide, acute at the apex, cuneate at the 

 base, doubly serrate, often lobed toward the apex, 

 glabrous, dark green and shining above; petioles i'-f 

 long; corymbs glabrous; flowers about 8" broad, sepals 

 lanceolate acuminate, entire ; stamens 10-20 ; anthers 

 pink; styles and nutlets 3-5; fruit short-ellipsoid to 

 globose, s"-8" thick, dark crimson. 



Occasional, eastern Pennsylvania and Maryland. May ; 

 fruit ripe October. 



7. Crataegus fecunda Sargent. Fruitful 

 Thorn. Fig. 2341. 



Crataegus fecunda Sarg. Bot. Gaz. 33: in. 1902. 



A small tree, sometimes 25 high, with spreading 

 branches. Thorns numerous, ii'-2i' long; leaves 

 oblong-obovate to oval, ii'-3$' long, t'-2j' broad, 

 doubly serrate, acute at the apex, cuneate at the 

 base, dark green and shining with veins strongly 

 marked above, paler and glabrous beneath; corymbs 

 slightly villous ; flowers about 10" wide ; calyx-lobes 

 coarsely glandular-serrate ; stamens about 10 ; anthers 

 purple; styles and nutlets 2-4; fruit short-ellipsiod 

 to subglobose, io"-i2" long, orange-red, slightly 

 pubescent; calyx-lobes erect, flesh thick. 



Rich bottom lands, Illinois and Missouri in the vicinity 

 of St. Louis. May ; fruit ripe October. 



8. Crataegus cuneiformis (Marsh.) Eggleston. 

 Marshall's Thorn. Fig. 2342. 



Mespilus cuneiformis Marsh. Arb. Am. 88. 1785. 



C. disperma Ashe, Journ. E. Mitch. Soc. 17*: 14. 1900. 



C. peoriensis Sarg. Bot. Gaz. 31 : 5. 1901. 



C. grandis Ashe, Journ. E. Mitch. Soc. IJ 2 : 9. 1901. 



C. pausiaca Ashe, Ann. Cam. Mus. i : 390. 1902. 



C. porrecta Ashe, Ann. Cam. Mus. i : 391. 1902. 



A small tree, sometimes 25 high, with widely spreading 

 branches, the bark dark brown, scaly. Spines numerous, 

 often branched, f'-7'; leaves oblanceolate-obovate, acute 

 at the apex, cuneate at the base, serrate or doubly serrate, 

 i '-2$' long, i'-ii' wide, dark vivid yellow-green, glabrous 

 and impressed-veined above when mature ; corymbs usually 

 slightly pubescent; flowers 6"-8" wide; stamens 10-15, 

 anthers dark pink; styles and nutlets 2-4; fruit ellipsoid- 

 pyriform, scarlet or dark red, about 5" thick. 



Western New York and Pennsylvania to southwest Vir- 

 ginia, west to central Illinois. Intermediate between C. Crus- 

 galli and C. punctata. May ; fruit ripe October. 



