Euphorbia dictyosperma Fisch. & C.A.Mey.

PLANTS OF IOWA
Herbarium of Iowa State College
Euphorbia dictyosperma Fisch, & Mey.
Tithymalus missouriensis (Norton) Staall
T, arkansanus (Engelm.& Gray) Kl. & Garke
flalarrhoeus missouriensis (Norton) Rydb.
G, arkansanus (Engelm. & Gray) Small
lyon Co., Sioux Twp., Sec, -
In Gitche Manito State Park, in the north-
westernmost corner of the state. On dry
soil and outcrops of Sioux quartzite rock
June 21, 1937
Collected by Ada Hayden
No* 6048
04002465