434 



necessary before the genus can be satisfactorily divided into its species 

 and varieties. 



In the first place, the group has been favored with three genus 

 names, viz., Juglans (L. 1753.) ; Hicoria (Raf.— 1808.— Scoria Raf. 1808, 

 Hicorius Raf. 1817, Hicoria Raf. 1836.); and Carya (Nutt. 1818.). 



The walnuts and butternuts and our present hickories were all 

 included under the term Juglans. The group was split up on the 

 strength of whether the husk was dehiscent or not, and of course the 

 so-called hickories emerged as a separate genus. Without going further 

 into the historical side of the matter, both Hicoria and Carya as a 

 genus name are commonly applied. I favor the term Hicoria, derived 

 from the aboriginal or American Indian name with its apparent priority 

 in print. Be this, however, as it may, the names and descriptions given 

 to species are infinitely more troublesome. 



The last 7th Edition, of Gray's Manual, describes eight species with 

 all of these, possibly excepting Hicoria aquatica, within the borders of 

 Indiana. Britton and Brown, new (2nd Ed.) Flora, contains 12 species, 

 including but the same species as given in Gray for Indiana. Doubt 

 shrouds several of these species as admitted in the texts. 



Beam's 1911 Report lists seven species as occurring in Indiana. 

 Except in name, this checks exactly foi those given in Coulter's Cata- 

 logue. Very brief notes on the Indiana species are noted below, old 

 and new records are given in a list following these notes. 



1. Hicoria Pecan (Marsh) Brit. Pecan, Illinois Nut, Soft-shell Hickory. 



(See p. 436.) 

 This tree does not occur in White County. Its range as given in 

 the 1911 Report is the lower Wabash and lower stretches of its tribu- 

 taries. (See p. — . ) Without doubt this species occurs in some as yet 

 unreported counties. In a letter from Mr. Deam, Jan. 31, 1916, he 

 says that H. Pecan extends up the Ohio Valley at least as far as Clark 

 County. This species and the next are not difficult of determination. 



2. Hicoria cordiformis (Wave/) Brit. Bitter-nut, Swamp Hickory, Pig- 



nut, etc. (See p. 436.) 

 This species is said to occur throughout Indiana, being, however, 

 nowhere abundant (Deam 1911 Report). In White County 't is per- 

 haps the most abundant in the central townships. 



