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B I LI MORE BOTANICAL STUDIES 



and hypanthium pilose-pubescent : stamens 18-20, the anthers 

 purplish : fruit subglobose, 8~9 mm thick, ripening in October, 

 ruddy at maturity: nutlets mostly 2-3, about 6 mm long, the lateral 

 surfaces nearly plane : hypostyle about 4 mm long. 



Cratczgus tersa grows in upland woods near Opelousas, Louisiana (type 

 locality). 



The original specimens, representing flowers {H4142) and fruit (HJ124) from 

 the same tree, are preserved in the Biltmore Herbarium. 



Crataegus arta n. sp. 



A large shrub or small tree 3-4™ tall, the trunk or main stems 

 clothed with dark gray or brownish scaly bark : branches spread- 

 ing or ascending, freely armed with chestnut-brown or gray spines 

 2.5~5 cm long : leaves cuneate, obovate- or oblong-cuneiform, rarely 

 elliptic, the blades 2-4°™ long, i-2 cm wide, or larger on leading 

 shoots, rounded or pointed at the apex, wedge-shaped or more 

 abruptly contracted at the base, the borders serrate above the 

 middle ; they are glabrous or with a few hairs along the midrib, 

 especially on the upper surface, firm to subcoriaceous in texture, 

 bright green and lustrous above, pale beneath, fading with tones 

 of yellow, orange and brown : petioles 2-io mm long, sparingly 

 pubescent when young, mainly on the upper surface and margins : 

 flowers, which open about the first of May, about i5 mm wide, borne 

 in narrow, close, 4-8-flowered corymbs : pedicels 4-1 o mm long, 

 more or less pubescent : hypanthium glabrous or with a few hairs 

 near the base: stamens normally 10, the anthers purplish: fruit 

 subglobose or short-ovoid, about i cm thick, ripening early in 

 October, at maturity yellow-green or orange with red cheeks : 

 nutlets mostly 2-3, 7-8 mm long, the lateral surfcaes nearly plane : 

 hypostyle 4-5 mm long. 



Cratczgus arta grows on the limestone hills of middle Tennessee, and was 

 originally collected near Nashville. 



The type specimens, consisting of flowers (H2736) and fruit {H3244) from the 

 same individual, are preserved in the Biltmore Herbarium. 



Crataegus torva n. sp. 



A large shrub or small tree 3-4 111 tall with dark gray or brown- 

 ish scaly bark, the spreading or ascending branches freely armed 

 with chestnut-brown or gray spines sometimes 8 cm long : leaves 



