60 
may not have been obtained from the variety sterilis Torr. and Gray, taken 
into cultivation from some other part of its range, which, according to the 
manuals, extends from southern New York to Florida and west to lowa 
and Missouri. 
Fig. 1 is a photograph of a large clump of H. arborescence var. sterilis 
Torr. and Gray, which was transplanted from the woods to a blue grass 
lawn in the open sunshine. When transplanted from the woods, fourteen 
years ago, it consisted of a small plant with two or three canes. It has had 
no cultivation save an occasional watering in dry weather. At the present 
time the clump is three feet in diameter at the ground, and this summer 
bore sixty-five large heads of snowy-white flowers. 
Fig. 2—Hydrangea arborescens var. sterilis. Two flower clusters fourteen 
inches in diameter, borne by a plant two years old from a cutting. 
Fig. 2 represents two flower clusters fourteen inches in diameter borne 
upon a plant two years old from a cutting. 
Torrey and Gray' (Flora of North America, vol. 1, page 591) recognized 
four varieties of Hydrangea arborescens L. described as follows : 
“a. Vulgaris: leaves ovate, obtuse at the base; flowers commonly all 
fertile—H. arborescens, L.! (pl. gronov!) H. vulgaris, Michx.! 
ete. 
“bh. Cordata: leaves broadly ovate, more or less cordate, large; a few 
of the marginal flowers radiate, sterile—H. cordata, Pursh.! 
Lyon" BGR dros 
“ae. Oblonga: leaves ovate—oblong, mostly acute at the base; a few 
of the marginal flowers radiate, sterile. 
“qd. Sterilis: flowers all sterile and radiate. The specimens upon 
which the description of this variety was based was collected at 
Wysox, Penna., by Mr. John Carey.” 
