158 UMBELLIFER.E. 



outer larger irregular. Fruit oblong, ridges short ; vittae conspicuous ; styles 

 spreading. DISTRIB. Europe (Arctic), Siberia, W. Asia to the Himalaya. 



SECTION 2. Petroseli'num, Hoffm. (gen.). Root fusiform. Leaves 

 pinnate or 2-3-pinnate. Calyx-teeth obsolete. Petals white or yellowish, 

 scarcely notched. (Intermediate between Apium and Carum.} 



2. C. see: etum, Bcnih. ; leaves pinnate, flowers white. Corn Parsley. 

 Hedgebanks and waste places, local, from Hull southwards ; fl. Aug. -Sept. 



Glabrous, annual. Stem 2-3 ft., erect, branched, terete, striate, solid. 

 Leaves 4-6 in , oblong ; leaflets J-l^ in., subsessile, lobed or pinnatifid, seg- 

 ments crenate. Umbels small, irregular, rays very unequal, outer i-1 in. ; 

 bracts and bracteoles 3-5, linear or subulate. Flowers minute. Fruit in., 

 ovoid ; styles very short, erect. DISTRIB. Mid. and S. Europe, from 

 Holland southwards ; W. Asia. 



0. PETROSELI'NITM, Bcnth.; leaves 3 -pinnate, flowers yellow. Pctroseli- 

 num sfttivum, Hoffm. Common Parsley. 



Castle walls and waste places ; a garden escape ; fl. June-Aug. Glabrous, 

 shining, biennial. Stem. 1-2 ft., erect, much-branched, terete, striate, solid. 

 Leaves deltoid ; leaflets many, i-1 in., close-set, broadly ovate, 3-cleft ; 

 segments cuneate, crenate, of upper leaves few, narrow. Umbel* regular, 

 flat-topped ; rays many, 1-2 in. ; bracts 2-3, often divided ; bracteoles many. 

 Flowers minute. Fruit , in. , ovoid, green ; styles slender, reflexed. 

 DISTUIB. Only known as a cultivated plant or an escape. 



SECTION 3. Bu'nium, L. (gen.). Root a solitary tuber. Leaves 2-3- 

 pinnate. Calyx-teeth minute. Petals white, deeply notched. 



3. C. Bulbocast anum, Koch; leaves broadly triangular 3-piiniatc, 

 primary segments petioled, leaflets cut into few slender lobes. 



Chalky fields, rare, Hertford, Bedford, and Cambridge ; fl. June-July. Root 

 globose, as large as a chestnut, black. Stem erect, striate, much branched, 

 and patioles flexuous at the base. Leaves 4-6 in., ultimate segments -4j in., 

 tips callous. Umbels rather irregular, many-rayed ; bracts and bracteoles 

 small, narrow ; p3duncles stout, grooved, angular. F/o/rers white, outer 

 rather larger. Fruit nearly J in. ; ridges stout ; vitiae compr js.sod ; styles 

 short, recurved. DISTRIB. Europe from Belgium southwards, N. Africa, 

 Siberia. Pigs are fed on the tubers in Hertfordshire. 



11. SI SON, L. 



Characters of Carum, but vitte very short, often obscure, ori-upying 

 only the upper half of the fruit. DISTRIB. One species, native of Europo, 

 from France southwards and eastwards. ETYM. unknown. 



1. S. Amo'mum, L. ; leaves pinnate or 2-pinnate below, upper smaller 

 3-lobed toothed or entire. 



Moist places, hedgebanks, &c.. from York and Chester southwards, rare in 

 the N. of England ; a native? HV/'.w,, ; H. Aug. -Sept. Annual or biennial, 

 glabrous, nauseous-smelling. Root fusiform. Stem 2-3 ft., erect, branched, 

 slender, leafy, solid. Leaves 6-12 in., deltoid-oblong; leaflets 1-3 in., 

 shortly petioled, linear-oblong or ovate, base cuneate. Umbeh terminal and 

 axillary, compound ; rays few, slender, unequal ; bracts and bracteoles 24, 

 short, subulate, rarely 0. Flo w ers minute, white. Petals broadly obcordate, 

 deeply notched, with a long inflexed point. Fruit ovoid or subglobose ; 



