346 



THE UMBELLATE FAMILY. 



and almost all on very short peduncles, 

 either opposite to the leaves or in the 

 forks of the branches. Kays seldom 

 above 12. No general involucre, and 

 but very small, narrow bracts to the 

 partial ones. Fruits rather different 

 from those of the other species, being 

 shortly pedicellate, cylindrical, with 

 scarcely prominent, broad ribs, and the 

 calycine teeth very minute. 



In wet ditches, ponds, and along rivers 

 and streams, throughout the temperate 

 parts of Europe and Russian Asia. Not 

 uncommon in England and Ireland, but 

 very rare in Scotland. Fl. summer. A 

 variety growing usually in deeper or 

 running water, with the lower part of 

 the stem much elongated and slender, 

 has been distinguished as a species, 

 under the name of OE. flwviatilis (Eng. Bot. Suppl. t. 2944). 



Fig. 419. 



XVII. i&THUSA. JETHUSA. 



Leaves dissected. Umbels compound, with partial involucres. 

 Petals white, notched, with an inflected point. Fruit ovoid, not la- 

 terally compressed, without visible calycine teeth. Carpels with 5 

 thick, prominent ribs, and narrow furrows, with a vitta under each. 



A single species, differing from Seseli more in habit than in cha- 

 racter. 



1. Common JEthusa. JEthusa Cynapium, Linn. (Eig. 420.) 



(Eng. Bot. t. 1192. Fool's Parsley.) 



An erect, glabrous, leafy annual, 1 to 2 feet high, with forked 

 branches, emitting a nauseous smell when rubbed. Leaves of a bright 

 green, twice or thrice pinnate, the segments ovate-lanceolate, more or 

 less deeply cut into narrow lobes. Umbels on long peduncles, either 

 terminal or opposite to the leaves, of 8 to 12 rays, usually without 

 general involucres. Partial involucres of 2 or 3 long, linear bracts, 

 turned downwards towards the outside of the umbels, a character 



