rMBElLITEK^. 251 



ci-eeping, or floating, according to the situation it grows in, the flowering 

 branches erect or ascending. Stem-leaves twice or thrice pinnate, with 

 small oblong and entire, or cuneate and lobed segments ; or, when under 

 water, all the lobes are narrow and long, sometimes capillary. Umbels 

 much smaller than in the Hemlock (E., and almost all on very short 

 peduncles, either opposite to the leaves or in the forks of the branches. 

 Rays seldom above 12. No general involucre, and but very small, narrow 

 bracts to the partial ones. Fruits rather dilTerent 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, 

 but very rare in Scotland. Fl. sumtner. 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 CE.flu- 

 viatilis (Eng. Bot. Suppl. t. 2944). 



XVII. .STHUSA. ^THUSA. 



Leaves dissected. Umbels compound, with partial involucres. Petals 

 ■white, notched, with an inflected point. Fruit ovoid, not laterally com- 

 pressed, 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 character. 



1. Common i^thusa. ^Bthusa Cynapium, Linn. 

 (Eng. Bot. t. 1192. FooVs Parsley.) 



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

 emitting a nauseous smeU when rubbed. Leaves of a bright green, tvrice 

 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 out- 

 side of the umbels, a character peculiar to tliis species among British Urn- 

 hellaies. Fruit about 1^ Lines long, with very small reflected styles. 



A common weed in fields and gardens, thi-oughout Europe and Russian 

 Asia, except the extreme north. Abundant in England, but does not appear 

 to extend far north into Scotland. Fl. summer and autumn. 



XVIIL FENNEIi. FCENICULUM. 



Leaves finely dissected. Umbels compound, without involucres. Petals 

 yellow, entii-e, inflected at the top, but not pointed. 'Fruit oval, slightly 

 compressed laterally, without visible calycine teeth. Carpels with 5 pro- 

 minent ribs, and single vittas under the furrows. 



A single, or perhaps two species, with the yellow flowers and habit of 

 Anethum (or Bill-seed), from which it has been separated, as having the 

 fruit somewhat laterally compressed, not flattened from front to back, 



1. Common Fennel. Foeniculum vulgare, Gsertn. 

 (Anethmn Fceiiiculum, Eng. Bot. t. 1208.) 

 Stock perennial, but usually of short duration. Stems erect, branched, 



