Xanthium strumarium var. canadense (Mill.) Torr. & A.Gray

HERBARIUM OF THE UNIVERSITY OF MICHIGAN
pfcatepaieaiic Responses of Races of Xantkium strumarium
Xanthium strumarium L., complex (g66 annotation t)V DOPlS
Love)
Grown in greenhouses of the University $§ Michigan Botanical Gardens,
Dixboro, Washtenaw County, Michigan.
Specimen prepared J OC t. , 19& J by W* E‘ Alexander and B- G- Kan^
No. bo
Seed originally collected	at	MOOPeVllie , Mlctl,
Yopk Twp. , Moon Road
byWalter Kieinsoh;:.iot
and assigned seed lot no. 6 j, —1^
NEW YORK BOTANICAL GARDEN
This plant is from the F i P S t
generation derived from the above seed.
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Photoperiodic responses of this race are reported under strain no. 29	by
P. M. Ray and W. E. Alexander, Amer. Jour. Bot., Vol. 53, p/. Si 0 ,	1966.
03199978