298 



MALACEAE. 



VOL. II. 



3. Crataegus schizophylla Eggl. Martha's Vine- 

 yard Thorn. Fig. 2337. 



Crataegus schisophylla Eggl. Bull. Torr. Club 38 : 243. 1911. 



A small tree, sometimes 12 high, with ascending 

 irregular branches. Spines numerous, i'-3' long; leaves 

 oblong-obovate to ovate, \'-2\' long, \'-\\' 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'-J' 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. 



4. Crataegus denaria Beadle. Palmer's Thorn. 

 Fig. 2338. 



Crataegus denaria Beadle, Bilt. Bot. Stud, i : 2. 131. 1902. 

 Crataegus Palmeri Sarg. Trees & Shrubs 1:57. 1903. 



A small tree, sometimes 25 high, with spreading 

 branches and a round-topped crown. Spines f '-2*' long ; 

 leaves oval, ovate, to oblong-obovate, i'-3' long, i'-a' 

 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 Missouri, south to 

 central Mississippi. Intermediate between C. Crus-galli and 

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



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



Crataegus Reverchoni Sarg. Trees & Shrubs i : 55. 



1903. 

 C. Jasperensis Sarg. Rep. Mo. Bot. Card. 19: 61. 



July 1904. 

 C. rubrifolia Sarg. Rep. Mo. Bot. Card. 19 : 66. July 



1908. 

 C. nibrisepala Sarg. Mo. Bot. Card. 19 : 70. July 



1908. 



A shrub or tree, sometimes 20 high, with 

 numerous zigzag branches and an irregular round- 

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

 oval or obovate, ii'-ij' long, i'-i' 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, light scarlet to 

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



Southern Missouri and Dallas County, Texas. 

 April ; fruit ripe October. 



