29S 



MALACEAE. 



Vol. II. 



3. Crataegus schizophylla llggl. ^Martha's \'ine- 

 }ar(l Thorn. Fig. 2337. 



Crataegus sclucopliylIa'Egg\.'Bu\\.ToTr.C\uh 38: .243. 191 1. 



A small tree, sometimes 12 high, with ascending 

 irregular branches. Spines numerous, I'-j' long; leaves 

 oblong-obovate to ovate, i'-2i' long, i'-li' wide, acute 

 or obtuse at the apex, cuneate at the base, coarsely ser- 

 rate with short acute lobes towards the apex, glabrous, 

 slightly impressed-veined; petioles i'-i' long; corymbs 

 glabrous ; flowers about 6" broad ; calyx-lobes lanceo- 

 late, acute; stamens about 10, anthers pale purple; 

 styles and nutlets usually 2; fruit pyriform-ellipsoid, 

 dark red, about 5" thick; calyx- persistent, its lobes 

 reflexed; flesh hard at maturity; nutlets ridged on the 

 back. 



Common on Martha's Vineyard, Massachusetts. June ; 

 fruit ripe October. 



Palmer's Thorn. 



4. Crataegus denaria Beadle. 

 Fig- -2338- 



Crataegus denaria Beadle, Bilt. Bot. Stud, i: 2. 131. 190-:. 

 Crataegus Palmeri Sarg. Trees & Shrubs i : 57. 1903. 



A small tree, sometimes 25 high, with spreading 

 branches and a round-topped crown. Spines 3'-2i' long; 

 leaves oval, ovate, to oblong-obovate, I's' long, J'-2' 

 wide, acute or obtuse at the apex, cuneate at the base, 

 serrate, crenate-serrate or doubly so, often slightly 

 lobed towards the apex, dark green and shining above, 

 slightly impressed-veined ; corymbs glabrous or slightly 

 pilose; flowers about 6" broad, stamens usually ten, 

 anthers yellow ; styles and nutlets 2-5 ; fruit globose or 

 subglobose, reddish-green or light red, about 4" thick. 



Low rich soil, western Kentucky and Missotiri. south to 

 central Mississippi. Intermediate between C. Crus-galli and 

 C. viiidis. April-May ; fruit ripe October. 



5. Crataegus Reverchoni Sargent. Reveichon's Thorn. Fig. 2339. 



Crataegus Reverchoni Sarg. Trees & Shrubs i 



1903. 

 C. lasfercnsis Sarg. Rep. Mo. Bot. Gard. 19 



July 1904. 

 C. rubrifolia Sarg. Rep. Mo. Bot. Gard. 19 : 66. 



1908. 

 C. rubrisepala Sarg. Mo. Bot. Gard. 19 : 70. 



igo8. 



55- 



61. 



July 



July 



with 



A shrub or tree, sometiines 20 high, 

 numerous zigzag branches and an irregular round- 

 topped crown. Spines l'-2' long; leaves ovate, 

 oval or obovate, li'-ii' long, i'-l' wide, acute or 

 obtuse at the apex, broadly cuneate or rounded at 

 the base, serrate or serrate-dentate, often with I 

 or 2 pairs of shallow lobes toward the apex, 

 coriaceous, dark green and shining above, gla- 

 brous ; corymbs glabrous ; flowers 6" or 7" broad ; 

 stamens 10-20; anthers yellow or pink; styles and 

 nutlets 3-5; calyx-lobes lanceolate, entire; fruit 

 subglobose to compressed, globose, Hght scarlet to 

 orange-red, 4" or 5" thick; calyx-lobes reflexed. 



Southern Missouri and 

 April : fruit ripe October. 



Dallas County. Texas. 



