UMBELLIFERJE. 



363 



English Names. 

 Cowbane. 



. False Water Dropwort. 



Meadow Parsnip. 



Latin Names. 

 Archemora, D C, . 

 A. rigida, D C., 1 . 

 Tiedmannia, DC, 

 ? T. teretifolia, D C, 2 

 Cymopterus, Raf. 

 *C. glomeratus, 

 Cynosciadium, D C. 

 *C. digitaturn, D C, 

 *C. pinnatum, D C, 

 Thaspium, Natt., . 

 T. barbinode, Xutt., 

 Zizia, D C. 

 Z. integerrima, D C, 

 Helosciadiinn, Koch. 

 *H. leptophyllum, D C, 

 Leptocaulis, Xutt. 

 *L. inermis, Xutt., . 

 *L diffusus, Xutt., 

 *L. patens, Natt., . 

 *L. echinatus, Xutt. 

 Cicuta, L., 

 ? C. maculata, L., 3 . 

 Sium, L., 



S. angustifolium, L., 

 Chcerophyllum , L., 



C procumbens, Lam., 



*C. Tainturieri, Hook & Am., 

 Coniuin, L , . . . Poison Hemlock. 

 ? C. maculatum, L., 4 ..... 

 EulophiiSj Xutt. 



*E. Americanus, Xutt., 



Atrema, D C. 



*A. Americana, DC, 



Eriyenia, Xutt, . . Harbinger of Spring. 

 ? E. bulbosa, Xutt., 



Geolog l Station. Natural Habitat. 



. Swamps. Wet meadows. 



. Plains. 



. Wet prairies and ponds. 



Limestone, 



Alluvial, 



. Water hemlock. 



. Spotted Cowbane. Beaver-poison. 



. Water Parsnip. 



Limestone water, 



Chervil. 



Alluv 



Rocky banks. 

 Rich woods. 

 Banks. 

 Prairies. 



Swamps. 



Mammoth Spring. 



Moist, shady, rich soil. 

 Prairies. 



Roadsides. Introduced. 



Prairies. 



Prairies. 



Rich shady bottoms. 



1 One of the numerous plants to which milk sickness is attributed. Poisonous to the cattle. Stem 

 smooth. Leaves cut in three lanceolate, scarcely toothed leaflets. Common in swamps and marshy 

 bottoms. 



2 I saw it in Illinois, near the Mississippi River, not far from the limits of Arkansas. 



3 Plant very poisonous. Stem four to six feet high, striate, spotted green and purple. Leaves divided 

 three times, pinnate, divisions small, lanceolate, serrate. Fruit round, laterally contracted, ribbed, 

 with the taste of anise. Habit the marshes. Probably in Arkansas. 



* A large herb, with smooth spotted stems. Leaves sheathing, large, decompound with small lanceolate 

 leaflets. Fruit ovate, compressed, ribbed. Flowers small, with an involucre of five leaves. A violent 

 poison, narcotic and acrid. I did not see it in Arkansas, but in Illinois. Introduced. Some other 

 species of this family are introduced in gardens : the Parsley, Celery, Dill, Fennel, Caraway, Coriander, 

 &c. Mostly used as condiment and for their aromatic seeds. 



