204 Rhodora [Sbftbibbs 



cipal nerves of the under surface. Just such a plant as that described 

 by Linnaeus occurs from New York southward to Georgia and west- 

 ward to Illinois, Missouri, and Oklahoma. 



Another Hydrangea has flowers, fruit, and the pubescence of the 

 leaves identical with (hose of //. arborescens L., but differs from il in 

 having lance-ovate or lance-elliptic loaves that are oblique at base. 

 This is exactly the plant separated as t oblonga by Torrey and Gray. 1 

 its range is somewhat more extensive than that of //. arbor escens, 

 reaching from New York southward to Georgia and Alabama and 

 westward to Illinois, Missouri, Oklahoma, and Louisiana. In most 

 eases this plant is strikingly different from //. arborescent, but there 

 are frequent intermediate specimens. These show in some cases 

 the lance-elliptic leaves oblique at base on the lower part of the 

 plant, while the upper one or two pairs of leaves may be cordate- 

 ovate exactly as in //. arborescens. In other eases the leaves of the 

 entire plant are intermediate in shape between the two just described. 

 In other cases the leaves show a pubescence on the lower surface on 

 the secondary as well as the primary nerves. Because of the ex- 

 istence' of these intermediate specimens it is felt that Torrey and 

 (nay were quite right in maintaining the plant with narrow lance- 

 elliptic leaves as a variety of the species. It should he known as //. 

 arborescent L., var. oblonga T. & G. 



Another variant of the species, though strikingly different from the 

 others, has never received a name. It has often been collected, but 

 it has always been identified either as //. arborescent L. or as //. cincrea 

 Small. 2 Identical Mowers and fruits clearly show that its true re- 



' PL N. Am. i. 591 (1838-1840). 



' By studying the original material the author has determined that II. cinerea 

 Small is a mixture. I)r. Small cites live specimens in the original publication but 

 does not indicate at this place that any particular one was designated as the type, 

 (Mm- of these was of his own collection and on that sheet in the Columbia College 

 Herbarium is written, "Type". This is a vigorous specimen with large cordate, 

 acuminate leaves well coated on the lower surface with a dense gray short pubcru- 

 lence. This specimen represents exactly what is described here as Hpdrangta arbores- 

 cent L., var. Drama St. John. The P. L. Scribner specimen from White Cliff Springs. 

 Tennessee-, lias the same short crisp puberulence on the under surface of the leaves, 

 but they differ in shape and size, being smaller and oblong-lanceolate. This is one 

 of the specimens considered to be intermediate between var. oblonga T. & G. and var. 

 Deamii st John of Hvdranva arboreteens L. in the original description of //. citur$a 

 Small, the leaves are said to be "gray tomentose * < * beneath." Two of the 

 cited specimens, both from the same region, Chilhowee Mountains and Chilliowco 

 (iap, Tennessee, A. H. Ourtiss, no. 833, and Kearney, June 24, 1893, have this gray 

 tomentose pubescence. It is exactly like the heavy coat of fine white tomentose 



