Xanthium strumarium var. strumarium

3\‘
HERBARIUM OF THE UNIVERSITY OF MICHIGAN
Photoperiodic Responses of Races of Xanthium strumarium
Xanthium strumarium L., complex
(pee annot--tion)
ro
-Fr
Grown in greenhouses of the University of Michigan Botanical Gardens,
Dixboro, Washtenaw County, Michigan.
Specimen prepared ]_S July, 1964-by W. E. Alexander and B. G. Kang
No.
Seed originally collected £> NOV. , 1962 at Que , Montreal
(Jean Talon St. , Can. , 1/4 mi. from intersection
hl M , .*	with Die IX Blvd. roadside)
Doris Love	'
and assigned seed lot no.
SEW Yo/>V
BOTANICAL \
62-1
This plant is from the first
generation derived from the above seed.
NEW YORK BOTANICAL GARDEN
03202072
Photoperiodic responses of this race are reported under strain no.	by
P. M. Ray and W. E. Alexander, Amer. Jour. Bot., Vol. 53,	$10,	1966.
03202072