722 



Umbelliferae 



Cicuta 



' 50 



Map 1533 

 Zizia aptera (Gray) Fern. 



50 



Map 1534 



Cicuta bulblfera L. 



Map 1535, 



Cicuta maculata L. 



species were reported under the last name by authors before our present 

 manuals were in use so that it is impossible to know which species the 

 author had in hand. 



E. Que. to Alberta, southw. to Fla., Ark., and Tex. 



2. Zizia aptera (Gray) Fern. (Rhodora 41: 441-444. 1939.) (Zizia 

 cordata (Walt.) DC.) Heartleaf Alexanders. Map 1533. Our only 

 specimens are from an open, wooded slope in Harrison County about 3 miles 

 east of Elizabeth. It was reported from Steuben County by Bradner, but 

 no doubt this report should be referred to Thaspium trifoliatum var. flavum 

 which is found there and which he did not report. Zizia aptera is often con- 

 fused with Thaspium trifoliatum var. flavum which also has thickened, 

 white, and glabrous margins of the leaflets, but from which it can easily be 

 distinguished because Zizia aptera has a sessile central flower in each 

 umbellule. 



Conn, to Alberta, southw. to Ga., Mo., Colo., and Oreg. 



6011. CICUTA L. 



Leaflets narrowly linear; fruit orbicular, 1.5-2 mm long; axils of upper leaves bulblet- 

 bearing 1. C. bulbifera. 



Leaflets lanceolate, rarely some narrowly ovate; fruit oblong, 2.8-3.9 mm long; axils of 

 leaves not bulblet-bearing 2. C. maculata. 



1. Cicuta bulbifera L. Map 1534. Restricted to the lake area of the 

 northern part of the state. Miry, mucky, or sandy borders of lakes, ponds, 

 and swamps. Infrequent. Grows in wetter situations than does the next 

 species. 



Newf. to B. C. southw. to Md., Ind., Nebr., and Oreg. 



2. Cicuta maculata L. Water Hemlock. Map 1535. This plant is 

 poisonous and each year in this state there are reports of the death of 

 stock due to eating it. A man in Wells County, mistaking the tuberous 

 roots for sweet anise, ate them and died. Frequent throughout the state in 

 low ground about lakes and ponds, in low woods, and in and along ditches. 



Que. to Man., southw. to Fla. and Tex. 



