Rhus typhina L.

FLORA OF NORTH AMERICA.
COLLECTED FOR THE' ARMY MEDICAL MUSEUM,
NEW YORK BOTANICAL GARDEN
Herb. Edgar A. Mearns, Ass’’
Army,
^KHüWtyphina, L. Amoen. Acad. iv. 311 (1760).
Datisca hirta, L. Sp. PlBpny (Î753).
The type of Datisca hirta preserved in the Linnæan Herba-
rium is a specimen of the Stag-horn Sumach in the condition of
?BÉIf; the- inflorescence reverting to leaves, a phenomenon which fre-
ii"quehtly occurs in this and related species. Linnaeus had the
; plant from Kalm, and it was collected at Philadelphia. Although
hirta is thus the oldest specific name associated with the plant,
we are, I' think, debarred from using it by the publication of
Rhus hirta, Harv., as a synonym by Engler in DC. Monog.
Phan. iv. 425 (1883), where this is referred to R. tridentata,
Sond.
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