102 
EUPHORBIACE2E. 
EUPHORBIA, L. Spurge. 
882. E. polyg’onifolia, L. Shore Spurge. Knotgrass Spurge. 
Sandy soil of the lake shore, both north and south; frequent. July — 
September. 
Near Lake Calumet; rare. 
888. E. maculata, L. Spotted Spurge. 
Roadsides, old gardens, etc. ; common, often abundant. September. 
+ 
884. E. preslil, Guss. 
E. hypericifolia, in Manual, 5th Ed, 
Open woods and fields, chiefly in sandy soil, near the lake shore 
from Glencoe south to Pine Station, Ind. Riverside and Calumet ; 
probably rare. From Evanston to Palatine; frequent. July — 
October. 
885. E. corollata, L. Flowering Spurge. White Spurge. 
In dry soil; everywhere common, often abundant. June— Septem- 
ber, occasionally as late as November. r 5 u 
A form that is densely and softly pubescent, at least below, occurs 
on sand hills near Pine Station, Ind., Hill. 
886. E. cyparissias, L. Garden Spurge. Cypress Spurge. 
Roadsides and near gardens ; frequent. June — July. (B.) 
887. E. eommutata, Engelm. 
Local. May — July. 
^ Maywood. Calumet. Riverside, Babcock/ 
ACALYPEA, L. 
888. A. virginica, L. Three-seeded Mercury. 
Fields and open woods; frequent. July — October. (B.) 
TJRTICACE-ZE. 
ULMUS, L. 
,-4 889. U. fulva, Michx. Slippery or Red Elm. 
In rich woods; frequent locally. April 15th — May 10th. (B.) 
North Evanston. Niles. Riverside and Maywood, on the banks 
of the Desplaines river. 
890. U. americana, L. White Elm. American Elm. Water Elm. 
Moist woods, along streams, throughout our district; infrequent and 
scattered. April— May 10th. 
Cultivated for ornament. 
Note. — Ulmus alata, Michx., Whahoo or Winged Elm. 
Two or three specimens have been introduced, and are under cultivation at 
Evanston. 
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