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2. ©. microcarpa Hook. & Arn. Erect; 
umbels involucrate.—Common. Spring. 
The chewing of this herb, called by the 
Spanish ‘‘Yerba de vibora,’’ or an infusion of 
it, is recommended by them as an antidote 
against the bite of the rattlesnake. 
2. Daucus Tourn. Carrot. 
Umbels regularly compound. Secondary 
ribs of the cremocarp more prominent than 
the primary. Intervals1-vittate. Face of the 
endosperm flat. 
1. D. pusmius Michx. Flowers white.—©. 
Common. Spring. 
3. Ferula Tourn. 
Umbels regularly compound. Cremocarp 
dorsally compressed. Marginal ribs winged. 
Wings coherent. Dorsal ribs filiform. Vit- 
te 0. Flowers yellow.—2¢. 
I. F. Carirornica Gray.—Sunnyside. Sum- 
mer. 
4. Heracleum L. Cow-ParsnIp. 
Umbels regularly compound. Cremocarp 
dorsally compressed. Marginal ribs winged. 
Wings coherent. Vitte shorter than the mer- 
icarp.—2¢. Flowers white. 
1. H. wanatum Michx.—Common. Sum- 
mer. Herb of suspicious qualities. 
