892 



DlPSACACEAE 



Dipsacus 



and grazing, but still persisted in 1935 in a marly springy place in eastern 

 Cass County. 



Ont. to B. C, southw. to Ohio and Iowa, and in the Rocky Mts. to Ariz, 

 and N. Mex. 



274. DlPSACACEAE Lindl. Teasel Family 

 8540. DIPSACUS [Tourn.] L. 



1. Dipsacus sylvestris Huds. Common Teasel. Map 1961. An ob- 

 noxious weed along roadsides, on the banks of streams, and in waste places, 

 fields, and open woods. 



Nat. of Eu. and Asia ; Maine to Mich., southw. to N. C. and Ind. 



275. CUCURBITACEAE B. Juss. Gourd Family 



Corolla large, yellow, generally 6-15 cm long; stem trailing. . .8622. Cucurbita, p. 892. 

 Corolla small, less than 6 cm long, white or greenish; stem high-climbing by tendrils. 



Fruit glabrous; tendrils simple 8562. Melothria, p. 892. 



Fruit prickly or spiny; tendrils divided. 



Stem and leaves glabrous; fruit an inflated pod, dehiscent at the apex or bursting 



irregularly; usually 4-seeded 8629. Echinocystis, p. 893. 



Stem and leaves more or less pubescent; fruits 3-10 together, indehiscent, 1-seeded. 

 8637. Sicyos, p. 893. 



8562. MELOTHRIA L. 



1. Melothria pendula L. Map 1962. Wooded bluffs of the Ohio River. 

 Rare. It has been reported from Clark and Jefferson Counties. 

 Pa. to Mo., southw. to Fla. and La. 



8622. CUCURBITA [Tourn.] L. Gourds, Squashes, Pumpkins 



Leaves deeply 3-5-lobed. (See excluded species no. 602, p. 1094) C. Pepo var. ovifera. 



Leaves merely angulate or slightly 3-5-lobed. (See excluded species no. 601, p. 1094) 



C. foetidissima. 



