Spiraea latifolia (Aiton) Borkh.

k latifolia (Ait.) Borkh. var.
eptentrionalis Fernald
ame location as Baldwin 5464. Several
patches found.
July 21,-1946
Chromosomes: 2n - 54.
J'. T. Baldwin, Jr. (Margaret Young and
G. R. Noggle) 5601.
Spiraea latifolia var. septentrionalis in Virginia.—On
September 9, 1945, in company with Bernice M. Speese and
Earlene Atchison, the writer collected Spiraea latifolia (Ait.)
Borkh., var. septentrionalis Fernald on the very top of HawksbiU
Mountain (elevation of 4049 feet), Page County, Virginia.
There a small but dense patch grew in soil among the rocks.
Some of the plants were in flower; others were in fruit.
Specimens are in the Gray Herbarium (Baldwin 6464). They
were identified by Prof. M. L. Fernald, who wrote in a letter of
October 16,1945: “This variety occurs on the Labrador Peninsula
and in Newfoundland and south to the Magdalen Islands and
subalpine and alpine regions of Mt. Katahdin, Maine, and the
White Mountains, New Hampshire, also on Keweenaw Penin-
sula, Michigan. It is distinguished from true S. latifolia by the
dense cylindric to ovoid panicles, without elongate lower
branches, and the relatively large flowers. It is a nice addition
to the mountain-flora of northern Virginia.”—-J. T. Baldwin, Jr.,
The Blandy Experimental Farm, Boyce, Virginia.
02910326