590 Leguminosae Gymnocladus 



months. It has been found only in Gibson and Knox Counties. It is rare 

 and usually only a single tree is found except in one place in Little Cypress 

 Swamp in Knox County where it is common over an area of half an 

 acre or more. 



Atlantic coast from N. C. to Fla., along the Gulf to Tex., and up the 

 Mississippi Valley to Indiana. 



2. Gleditsia triacanthos L. HONEYLOCUST. Map 1202. Infrequent 

 throughout the state on the low banks of streams and adjacent lowlands, 

 rare in low woodland, and frequent in swampy lowlands of the south- 

 western counties. The pods of this species are variable in the amount of 

 pubescence. They are mostly more or less pubescent, rarely entirely 

 glabrous or densely pubescent all over at maturity. 



Pa., s. Mich, to Iowa, southw. to the Gulf States and Tex. 



2a. Gleditsia triacanthos f. inermis (Pursh) Fassett. (Rhodora 38: 

 97. 1936.) (Gleditsia triacanthos var. inermis Pursh.) Thornless 

 HONEYLOCUST. The few mature fruited specimens I have examined show 

 that this form has straighter, shorter, and narrower pods than the 

 species and the pods are dry within, not pulpy. The seed are elliptic- 

 oblong, slightly compressed while the seed of the species are much larger 

 and flatter. I have learned from nurserymen who supply western planters 

 with the thornless form for planting that the seed of the thornless form 

 produce about 60 per cent of seedlings without thorns. This form has 

 been reported from Greene, Jefferson, and Lawrence Counties but I have 

 never seen or heard of a thornless tree in northern Indiana. I saw a 

 large tall tree near the top of a ridge in a woods in Fayette County and 

 the remainder of the trees I have seen were in the bottoms along the 

 Wabash River in the southwestern part of the state. 



I have no data on its general distribution. Sargent writes that it is the 

 prevailing form in Taney County, Missouri. 



3. Gleditsia texana Sarg. Texas Honeylocust. Map 1203. This 

 species was first found in Gibson and Knox Counties and was considered 

 a hybrid of the preceding species. Later Sargent described it as a species 

 from a colony found in Texas. In 1921 I found a fine specimen in a corn- 

 field under which there were hundreds of 1-year seedlings which proves 

 that if this form is a hybrid it is a fertile one. I have made no effort 

 to determine the abundance of this species. It is, no doubt, restricted 

 to the southwestern counties and may be very rare since I have seen only 

 a few trees. 



Ind., Ark., Miss., La., and Tex. 



3545. GYMNOCLADUS Lam 



1. Gymnocladus dioica (L.) Koch. Kentucky Coffeetree. Map 

 1204. Infrequent to very rare throughout the state. It is usually found 

 in well drained, alluvial soil along streams and their adjacent terraces. 

 Since the tree has the habit of sending up root suckers at a great distance 

 from the parent tree it is often found in small colonies. 



N. Y., Ont. to Minn., southw. to Tenn., Ark., and Okla. 



