22. Crataegus Phacnopynini (Linnfeus fils) Medicus. Wash- 

 iXGTOx Thorn. Scarlet Haw. (Crataegus cordaia Aiton). Plate 98. 

 Bark grayish-brown, scaly; sjiines numerous, slightly' curved, 2-5 cm. 

 (3^-2 inches) long; leaves ovate-triangular, 2-8 cm. (3^^ -3 inches) long 

 and wide, simply or doublv serrate, often 3-5 lobed, acute at the ape.x, 

 rounded to cortlate at the base, bright green above, glabrous; petioles 

 sk^nder, 1.5-5cm. (10-2 inches) long, glaln'ous; corymbs gialirous, many- 

 flowered; flowers appear in June, 8-12 mm. (I3-I2 inch) broad; stamens 

 al)Out 20; anthers ijink; styles and nutlets usually 5: calyx lobes del- 

 toid, entire, deciduous; fruit ripens in October or November, depressed- 

 globose, scarlet, 4-6 mm. (^(^-^4. inch) thick, nutlets with a bai'e 

 apex and smooth liack, flesh thin, firm. 



Di.siribiitiou. — Mrginia to Georgia, Indiana to Arkansas. Moist 

 lich soil. Naturalized in Pennsylvania and New .Jersey. Possibly it 

 may lie naturalized at the Indiana station. More knowledge of dis- 

 tribution in southern Indiana is needed to settle this question. 



A shrubby tree sometimes 9 m. (30 feet) high, with nearly erect 

 liranches and an oblong crown. 



Specimens have l)een seen from Wayne (Deam). It also occurs in the 

 Wabash Valley. 



Horticultviral U.ses. — This is one of the most desirable thorns for 

 ornamental planting and hedges. Its scarlet autumn foliage and 

 beautiful little scarlet fruit persist for a long time. It is also one of the 

 Ameiican thorns long in cultivation, both in Europe and the United 

 States. 



Crataegus albicans Limueus. This species was reported for 

 Indiana by Heimlich. ^ 



The material at hand is not sufficient to make a satisfactory deter- 

 mination, hence it is omitted in the te.xt. 



According to the ti-eatment of the genus Crataegus in Britton and 

 Puown's Illustrated Flora, 2nd Edition, the range of the following 

 species extend into Indiana. 

 Throughout the State — In the northern part of the State — 



V. Boyntoni. C Braincrdi. 



In the southern part of the State — C\ lucorum. 



C. roaneiisis. 



('. berberifolia . C. licata. 



C. doiiaria. <^"- villipcs. 



C. fecmida. <"'■ Tringlei. 

 (". ovata. 



'Proc. Iiul. Acad. Sr-i. 1917:4+.5:iyiS. 



