A STUDY OF EUTHAMIA. Tz 
Doubtless all that Linnæus knew about the plant in question 
he learned from the figure and description that had been pub- 
lished in 1732 by Dillenius. He describes it, evidently from the ` 
plate of Dillenius, as an Hrigeron with panicled stem, solitary 
heads at the ends of the branchlets, and with leaves narrowly 
linear and entire. And it is so exactly a paniculate “ Erigeron” 
that he places it next to Æ. Canadensis. Consulting the Dil- 
lenian page whereon appears the earliest descriptive account of 
the plant, it is found to be credited with having a stem two feet 
high and more, this stem very stout—even of the thickness of a 
man’s little finger, where said stem emerges from the soil. 
Now such a plant, large in its dimensions, truly paniculate, 
though often broadly so—and much more broadly than in 
the cultivated specimen which Dillenius figured from—with 
heads either solitary or in threes (as Dillenius said) at the ends of 
the branchlets, and always pedicellate, is in the herbaria from our 
Southern seaboard, and must needs be accepted as the real 
Euthamia Caroliniana ; though by far the greater proportion of — 
our herbarium material so-named represents species very differ- 
ent, and for the most part undescribed hitherto. I would cite 
as a most satisfactory herbarium representative of F. Carolini- 
ana Professor Tracy’s number 4748 of my set of his plants. The 
specimen is fully 3 feet high, and, like other seaboard species, 
is divested of all its array of cauline leaves at time of flowering. 
Those present on the branches of the panicle are extremely 
harrow, rather thin in texture, dark-green, punctate, and exhibit 
a sparse somewhat hispidulous pubescence. The plant is also 
quite glutinous. 
E. TENUIFOLIA. Solidago tenuifolia, Pursh. Fi. ii. 540, in 
part only. About a foot high, the stem green, striate, glabrous, 
simple up to near the summit, then subcorymbose: leaves linear 
or narrowly lance-linear, 1} to 2 inches long, acute, obsoletely 
3-nerved, glabrous except as to the minutely serrulate-scabrous 
Margins, minutely and closely punctate, spreading or somewhat 
deflected, the whole herbage often blackening in drying: slender 
