A STUDY OF RHUS GLABRA 1 8 1 



cles. One of these I have seen only in the herbarium of the Field 

 Museum, sheets 13682 and 185 10. Both specimens were col- 

 lected and distributed by the late D. C. Eaton, somewhere near 

 New Haven; no date. Another is from South Hadley, Mass., 

 1887 ; the collector's name illegible. This is on sheet 275445 

 of U. S. National Herbarium. By evident marks of foliage 

 and detached flowering panicle this is certainly distinct from all 

 others known, and nearest R. ithacensis, unless the panicle be 

 pyramidal. 



7. RHUS CAROLINIANA Miller. 



RJius glabra, -panicula sfiarsa coccinea, Catesby, Carol. App. 



4, t. 4. 

 Rhus glabra Linn. Sp. PI. 2 ed. 380 (1762) in part onlv, and 



as to the shrub of Catesby. 

 Rhus Caroliniana Mill. Diet. ed. 1768. 

 Rhus elegans Ait. Hort. Kew. 1 : 365. 1789. 



Shrub 2-3 m. high: leaves large, but of only 13-17 leaflets, 

 these not closely approximate but large, commonly 8-1 1 cm. 

 long, 2-3 cm. wide, subsessile, acute rather than acuminate, 

 strongly serrate, the serratures about 9 on a side, upper face 

 deep green, lower glaucous : fruiting panicle large and not com- 

 pact, exactly pyramidal, 2 dm. long or more, 1.5 dm. wide at 

 base ; drupelets uncommonly small, bright scarlet rather than 

 dark-red in maturity. 



A South Carolinian species, collected, described and illustrated 

 by a large folio plate, in the middle of the eighteenth century, 

 by Catesby, who also was the medium of its introduction into 

 English parks and gardens at the same time; from which, also, 

 it is probably long since lost. That it is thoroughly distinct from 

 R. glabra Catesby's description and figure demonstrate, to all 

 who know Rhus glabra. Philip Miller also knew it to be distinct, 

 and in the year 1768 gave it the trivial name of R. caroliniana. 

 Again, as still grown in Kew Gardens twenty years later than 

 the date of Miller's work, Aiton, as if ignorant of Miller's 

 name R. caroliniana, published it again as distinct from R. 

 glabra under a new name, R. elegans. 



From a highly instructive paper on some small trees observed 



