Genus 6. 



APPLE FAMILY. 



301 



12. Crataegus suborbiculata Sargent. Caughua- 

 waga Thorn. Fig. 2346. 



Crataegus suborbiculata Sarg. Rhodora 3; 72. 1901. 

 C, nitidula Sarg. Geol. Surv. Mich. 5J1. 1907. 

 C, Saundersiana Sarg. Ont. Nat. Sci. Bull. 4: 66. 1908. 

 C. DeKiiigii Sarg. Rep. N. Y. State Bot. 1907: 34. 1908. 



A small tree, sometimes 20 high, with spreading 

 branches and a broad crown. Spines ii'-2' long; leaves 

 ovate-orbicular, impressed-veined and dull dark green 

 above, glabrous, serrate or twice serrate, acute at the 

 apex, broadly cuneate at the base, i'-2l' long, i'-2l' 

 wide; corymbs glabrous; llowers about 10" broad; 

 stamens about 20, the anthers rose ; styles and nutlets 

 4 or s; sepals slightly glandular-margined; fruit glo- 

 bose or compressed-globose, 5"-8" thick ; dull green to 

 scarlet; calyx-tube somewdiat prominent. 



Limestone areas, valley of the St. Lawrence and Great 

 Lakes from Montreal to southeastern Michigan. May-June ; 

 fruit ripe October. 



Crataegus collina Chapman. Chapman's Hill Thorn. Fig. 2347. 



Crataegus collina Chapm. Fl. So. U. S. Ed. 2, suppl. 2. 



684. 1892. 

 C. Lcttermani Sarg. Bot. Gaz. 31 : 220. April 1901. 

 C. sordida Sarg. Bot. Gaz. 33: 114. Feb. 1902. 



A tree, sometimes 25 high, with spreading branches 

 and a flat-topped crown. Spines numerous, l'-2i' 

 long ; leaves obovate or oblanceolate to oval, acute or 

 obtuse at the apex, strongly cuneate, serrate or doubly 

 serrate with obtuse lobes toward the apex, nearly 

 entire below, i'-2i' long, -2 wide, subcoriaceous, yel- 

 low-green, somewhat pubescent when young ; corymbs 

 and calyx pubescent; flowers y"-\2" broad; stamens 

 10-20 (commonly 20), the anthers usually yellow; 

 styles and nutlets 4 or 5 ; calyx-lobes glandular-ciliate 

 or glandular-serrate; fruit globose or compressed- 

 globose, 5"-"" thick, red or orange-red ; calyx-tube 

 somewhat prominent, the lobes reflexed. 



Virginia to Georgia. Missouri and Mississippi. April- 

 May ; fruit ripe October. 



14. Crataegus succulenta Schrader. Long-spined Thorn. Fig. 2348. 



C. succulenta Schrad. ; Link, Handb. 3:' 78. 1831. 

 Crataegus glandulosa var. macracantha Lindl. Bot. Reg. 



22 : pi. 1913. 1836. 

 Crataegus macracantha var. minor Lodd. ; Loud. Arb. 



Brit. 2: 819. 1838. 

 Crataegus occidentalis Britton, Bull. N. Y. Bot. Gard. i : 



5 : 448. 1900. 

 Crataegus coloradensis A. Nelson, Proc. Biol. See. 



Wash. 17: 175. 1904. 



A small tree, sometimes 25 high, with ascending 

 branches .and a broad irregular crown. Spines 

 numerous, i^'-4' long; leaves rhombic-ovate to obo- 

 vate, iJ'-3i' long, i'-2i' wide, acute at the apex, 

 broadly cuneate at the base, serrate or doubly serrate 

 with fine teeth, often lobed towards the apex, cori- 

 aceous, dark shining green above, pubescent along the 

 veins beneath ; corymbs slightly villous ; flowers about 

 10" broad ; calyx-lobes lanceolate, acuminate, glandu- 

 lar-laciniate. villous ; stamens 10-20, usually 10. the 

 anthers large, pink or occasionally yellow; styles 

 and nutlets usually 2 or 3; fruit subglobose. 3"-8" 

 thick, dark red. shining, villous ; calyx-lobes reflexed ; 

 flesh thin, glutinous. 



Nova Scotia to Minnesota. North Carolina and Nebraska, and in the Rocky Mountain 

 southern Colorado. May ; fruit ripe September. 



