STATE GEOLOGIST. 123 



PODOSTEMACEiE. Rivee-weed Family. 



PODOSTEMON, Michx. Eiver-weed. 



P. ceratophyllus, Michx. River-weed. 

 Lake Pepin, Miss Manniiig. Rare. 



EUPHORBIACE^. Spuege Family. 



EUPHORBIA, L. Spurge. 



E. polygonifolia, L. Shore Spurge. 



Lapliam. Shore of lake Superior ; lake Pepin, Miss Manning. 



E. Geyeri, Engelm. Geyer's Spurge. 



Lapliam, T. J. Hale. Common at Minneapolis, Upham, Simmons. 



E. serpylli folia, Pers. Thyme-leaved Spurge. 



Minneapolis, JTerrick; Blue Eartli county, Leiberg; Martin county, Oedge; New 

 Ulm, Juni; Murray county, Upham; Stearns county, Mrs. Blaisdell; Pembina, Havard. 



E. glyptosperma, Engelm. Spurge. 



Minneapolis, Herridt; Saint Cloud, Campbell; Bed river valley, Scott. 



E. maculata, L. Spotted Spurge. 



Common througH the south half of the state and perhaps northward. 



E. hiimistrata, Engelm. Spurge. 



Minneapolis, Roberts; Winona county, Holzinger; Martin county, Gedge. South . 



E. liypericifolia, L Spurge. 



Waste, dry places. St. Croix river. Parry; Minneapolis, Roberts; lake Pepin, Miss 

 Manning; Winona county, Holzinger; Blue Earth county, ieiberr/. Soutlii 



E, niarginata, Pursh. "White- margined Spurge. " Mouutain Snow." 



Frequent, often common, southwestvvard ; extending northeast to Redwood Falls 

 (found to be poisonous to the touch, even in mounting dried specimens), Miss Butler; in 

 Lyon county becoming a common weed in cultivated fields, Upham. 



E. coi'ollata, L. Flowering Spurge. 



Frequent, often common, through the south half of the state. 



E. lieterophylla, L. Spurge. 



Spirit lake, Minnesota river, etc., Gexjer; Blue Earth county, Leiberg, Gedge ; Min- 

 neapolis, Twining, A. W. Jones; Goodhue county, Sandberg; lake Pepin, Miss Man- 

 ning. Soutli. 



E. dictyosperma, Fischer & Meyer. Spurge. 

 Rock county, Leiberg. Southwest. 



E. Cyparissias, L. Garden Spurge. 



Adventive : Mankato, Leiberg; Goodhue county, Sandberg; lake Pepin, Miss 

 Manning. 



[E. commutata, Engelm., should be looked for in this state."] 



ACALYPHA, L. Three-seeded Mercury. 



A. Virginica, L. Three-seeded Mercury. 



Minneapolis. Roberts; Blue Earth county, Leiberg ; lake Pepin, Afiss Manning. 



