CHECK LIST OF FOREST TEEES 115 



Celtis laevigata apposita Ashe. 



Range. — Kentucky (known now only from rocky slopes at Camp Knox). 



NAME IN USE 



Sugarberry 



Celtis lindheimerii Koch. 24 Palo Blanco. 



Range. — Southern Texas (near New Braunfels and San Antonio; also in 

 Wilson, Goliad, Travis, Hays, and Kimble Counties). 



Note on nomenclature. — Formerly treated as a form only of Celtis laevigata 

 K. Koch, in 1S97 it was described as Celtis Helleri Small, this designation being 

 generally maintained until Professor Sargent (1. c.) called attention to Koch's 

 much older name for this tree. 



NAME IN USE 



Palo Blanco (Tex.) 



Celtis reticulata Torrey. Palo Blanco. 



Range. — From western Texas (Uvalde County) to Oklahoma and through 

 southern New Mexico and Arizona. 



Note on nomenclature. — Formerly designated as Celtis occidentalis reticulata 

 (Torrey) Sargent, as Celtis mississippiensis reticulata (Torrey) Sargent, and as 

 Celtis reticulata Torrey. 



NAMES IN USE 



Hackberry (Tex.). Thick-leaved Hackberry (lit.). 



Palo Blanco (Tex.). 



Celtis reticulata vestita Sargent. 25 Palo Blanco. 



Range. — West-central Oklahoma (Blaine County, along the North Fork of 

 the Canadian River near Canton. — Sargent). 



name in use 

 Palo Blanco 



Celtis douglasii Planchon. Hackberry. 



Range. — Not yet definitely determined. In general, it may be looked for in 

 British Columbia, Washington to eastern Oregon, Idaho, Utah, and Colorado 

 (eastern foothills), and Arizona (south slope of the Grand Canyon); also said to 

 occur in southern California (Kern and San Diego Counties) . 



Note on nomenclature. — Closely related to Celtis reticulata Torrey. Possibly 

 includes Celtis rugulosa Rydberg as regards its range in Colorado. 



name in use 

 Hackberry 



Celtis pumila georgiana (Small) Sargent. Hackberry. 



Range. — From North Carolina to western Florida; also in central Alabama, 

 southern Missouri, southeastern Oklahoma, southwestern Arkansas, and southern 

 Illinois. 



Note on nomenclature. — First described in 1897 as Celtis georgiana Small. 

 Celtis pumila Pursh, common in eastern United States, is a low shrub. 



J « C. S. Sargent (Bot. Gaz., LXVII, 220, 1919) states that the first specimen of this tree was collected 

 (probably near Austin) in 1834, specimens of it being taken subsequently in 1850 and in 1881, all of which 

 are preserved. It was originally described in 1872 as Celtis Lindheimerii Koch, from a tree in the Botanic 

 Garden in Berlin, Germany, this tree having been raised from seed collected by Lindbeimer and sent to 

 Berlin by Dr. George Engelmann under the name Celtis Lindheimerii, which Koch appears to have ac- 

 cepted when he described the plant. 



a This variety differs from the species in its more pubescent serrate leaves and more pubescent leaf-stems. 



