1924 REHDER, NEW SPECIES, VARIETIES AND COMBINATIONS 51 



PJ. Formos. n. 115, t. 12 [1912] ) from Formosa, but the leaves of the For- 

 mosan variety are quite glabrous according to the description. Dr. 

 Nakai has proposed for V. japonicum Miq. and V. erythrocarpum Michx. 

 the new genus Oxycoccoides (in Tokyo Bot. Mag. xxxi. 246 [1917] ), 

 but in doing so he overlooked the fact that Small in 1903 (in his Fl. 

 S. E. U. S. 896, 1336) based the new genus Hugeria on V. erythrocarpum 

 and as the two species are undoubtedly congeneric differing only in minor 

 characters, the oldest name for this genus, if separated from Vaccinium or 

 from Oxy coccus, will be Hugeria Small. The name Oxycoccoides pro- 

 posed by Bentham & Hooker (Gen. PL II. 574 [1876] ) as a section of Vac- 

 cinium though older than Hugeria, cannot invalidate a properly published 

 generic name. 



Viburnum molle f. leiophyllum, forma nova. 



A typo recedit foliis subtus glabris axillis venarum barbatis exceptis 



vel interdum ad venas sparse pilosis. 



Missouri: Stone County, Galena, high limestone bluffs, James River, 

 E. J. Palmer, no. 5671, May 20, 1914 (type), no. 4671, October 15, 1913 and no. 

 17226, April 17, 1920, no. 22816, May 23, 1923, no. 23872a, September 24, 1923. 

 Taney County, Swan, cliffs of the Swan River, C. S. Sargent, October 8, 

 1899, B. F. Bush, no. 798, October 9, 1899 (Gray Herb.), no. 3449, September 

 26, 1905. MacDonaldCounty, Noel, B. F. Bush, nos. 5531, 5763, April 

 25, and May 27, 1909. BentonCounty, Cole Camp Creek, Wm. T release, 



no. 4, May 19, 1904. 



Cultivated: Arnold Arboretum under no. 4643: August 29, 1913, June 9, 

 1910, February 15, June 27 and September 20, 1917, December 23, 1918, June 7, 

 1921. 



This form differs only in the glabrous or nearly glabrous under side of the 



leaves from typical V. molle Michx. which has the leaves densely soft 

 pubescent beneath. 



An intermediate form represents a specimen of the co-type of V. Deme- 

 trionis Deane & Robins., a synonym of V. molle, from the Cole Camp 

 Creek, Benton County, in the Herbarium of the Arnold Arboretum, the 

 leaves of which are very sparingly pubescent w r ith mostly forked hairs 

 beneath, except the veins which are more densely pilose with mostly simple 

 hairs; other specimens from the same locality have the leaves densely 

 pubescent beneath as in the typical form, while Trelease's No. 4 cited 

 above has nearly glabrous leaves. Of the type there are specimens from 

 the following localities in the Arnold Arboretum Herbarium: Danville, 

 Kentucky (type locality), Benton County (type locality of V. Demetrionis 

 Deane & Robins.), Christian, Stone and Boone Counties, Missouri, and 

 Carroll and Ripley Counties, Indiana. This shows that from two localities, 

 Cole Camp Creek, Benton County and Galena, Stone County, Missouri, 

 both forms are represented and that the glabrescent form seems to occur 

 only in the western part of the range of the species. 



The variety bears some resemblance to V. affine Bush, but that species 

 may be distinguished by the light brown or grayish brown, not light gray 

 or light grayish yellow, color of the branchlets, the close bark of older 



