Convolvulaceae of Indiana 275 



2. IPOMOEA HEDERACEA. 



Figs. 3 & i. 



Ipovioea hederacea Jacq. Icon. Ear. pi. 36. 1781. 



Plants hairy, with the hairs on the stems, petioles and peduncles 

 pointing- downward; leaves three-lobed; sepals long, attenuate-caudate, 

 tips curving, densely hairy at the expanded base. 



Rather common in cultivated fields and waste places. 



Specimens examined:— Clark Co. (Deam S^o-J) ; Crawford Co. 

 (Deam in 1899); Franklin Co. (Deam in 1903); Greene Co. (Deam 

 37,711); Hancock Co. (Deam 37,841); Jefferson Co. (Coulter in 1875); 

 Marion Co. (Deam 7,350) ; Morgan Co. (Deam 2,692) ; Perry Co. (Deam 

 37,419) ; Posey Co. (Deam 37,(193) ; Putnam Co. (McDougall in 1888 

 and in 1889; Yuncker 1,355); Vigo Co. (Deam 32,900). 



3. Ipomoea purpurea. 



Figs 5 & a. 



Iponioe a purpurea (L.) Lam. Tabl. Encycl. 1:466. 1791. 



Plants hairy, with the hairs on the stems, petioles and peduncles 

 turned downward; leaves cordate, or, infrequently, angled; sepals ovate 

 or oblong, acute, densely hairy at the base. 



In cultivated fields, along roadsides and in waste places generally. 



Specimens examined: — Putnam Co. (Bates in 1911; Grimes 778; 

 Yuncker 1,354) ; Shelby Co. (Deam 19,082) ; Spencer Co. (Deam 37,492). 



Specimens collected in Kosciusko and Wells Counties by Deam 

 (Deam 1,498 and 5,296), have sepals similar to those of /. purpurea, 

 but the leaves are lobed and in all respects are similar to those of 

 /. hederacea, while a specimen collected in Putnam County showed the 

 contrary condition, i.e., it had the calyx lobes of /. hederacea and the 

 leaves of I. purpurea. These combinations of characters suggest a 

 cross between these two closely related species. So far as I have been 

 able to find, no mention has been made before of this combination of 

 characters. 



4. Ipomoea pandurata. 

 Figs. 7 & 8. 



Ipomoea pandurata (L.) G.F.W.Mey. Prim.Fl.Esseq. 100. 1818. 



Plant robust, smooth or, rarely, hairy; leaves ovate or, infrequently, 

 constricted at the middle forming basal lobes; peduncles mostly longer 

 than the petioles, 1-6 flowered. 



Common in dry soil in waste places. 



Specimens examined: — Allen Co. (Deam 1,358) ; Blackford Co. 

 (Deam 1,181); Clark Co. (Deam 7,039); Daviess Co. (Deam 25,643); 

 Dubois Co. (Deam 11,589); Hamilton Co. (Mrs. Deam 12,151); Har- 

 rison Co. (Deam 37,212) ; Jefferson Co. (Coulter in 1875) ; Jennings Co. 

 (Deam 37,021); Knox Co. (Deam 17,006; 37,721); Perry Co. (Deam 

 37,392A; 37,418); Posey Co. (Deam 37,711); Putnam Co. (Grimes 673; 



