COMPOSITE 135 



setaceous, shorter than the flattened disk-flower. Ray flower usually neuter, 

 white. Odour fetid. 



Fields and cultivated ground. May-September. 



A. arvensis L. (Corn Camomile), A. nicaeensis Willd., A. maritima 

 L., A. montana L., A. saxatilis DC., and A. Triumfetti All. ( = Cota 

 Trlumfetti Gay), A. mixta L., A. nobilisGoy (True Camomile), A. fuscata 

 Brot., also occur. A. fuscata is a glabrous annual with white ray flowers, and 

 brownish involucral bracts deflexed upon the peduncle when ripe. It is common 

 in cultivated fields in the Var and flowers from February-May. 



ACH1LLEAL. 



A. Millefolium L. (Millfoil) is very common and very variable as else- 

 where. The var. A. setacea W. et K. has more numerous, more delicate and 

 almost setaceous leaf-segments and smaller dirty-white flowers. It is found on 

 the borders of fields and in waste places. May- September. 



A. Ageratum L. Leaves oblong, very obtuse, shortly petioled, toothed, 

 shortly hispid, dotted, nearly glabrous ; lower leaves lobed and toothed. Flowers 

 yellow. Heads small, 2-4 mm., becoming subcylindric when ripe, forming a 

 compact corymb. 



Damp places, road-sides, etc. May-August. 



A. tomentosa L. Leaves bipinnatisect, broadly linear, woolly or almost 

 tomentose ; about 20 segments close together on each side. Plant whitish-green. 

 Flowers bright yellow, in a small compact terminal corymb. 



Dry hill-sides, etc. May-June. 



A. nobilis L., A. odorata L. (flowers dirty yellowish- white) and A. 

 ligustica All. (near Nice) also occur. A. nobilis has whitish-green, bi- 

 pinnatisect leaves and dirty white flowers. A. ligustica is like it, but with 

 broader rachis and fewer segments. 



MATR1CARIA L. 



M. Cliamomilla L. Common Matricaria or Wild Camomile. A glabrous, 

 aromatic annual, with hollow receptacle, conical and acute, and very small 

 yellowish achenes. Ray flowers white, deflexed. It closely resembles the 

 Fetid Camomile. 



In fields and crops, but not common in the south. April-July. 



M. inodora L. Scentless Matricaria. A glabrous annual differing from 

 the last by its solid receptacle, obtuse at the summit. 

 Cultivated fields, uncommon. May-September. 



PYRETHRUM Scop. 

 P. corymbiferum Schrank = Leucanthemum corymbosum G. G. 



An erect branched leafy plant, 2 ft. high, greyish-green. Leaves dull green 

 above, pubescent beneath, upper ones sessile, with 8-15 pairs of lanceolate 

 pinnatifid segments, deeply incised. Flower heads in corymbs ; ray florets white. 

 Upper involucral bracts obtuse and scarious at apex. Achenes with 5 ridges. 

 Wooded hills ascending into the mountains, local. May-July. 



P. Parthenium Smith is found, perhaps as an alien, in waste places, fields, 

 and road-sides. April-August. It is often cultivated. 



LEUCANTHEMUM Adam. 



L. pallens DC. = Chrysanthemum pallens Gay. Stem erect, angular, 

 1-2 ft. high. Lower leaves spathulate, toothed towards apex ; middle ones 

 lanceolate, with several sharp teeth ; upper ones entire at base. Involucre paler 

 than in L. vulgare (the common Ox-eye Daisy), achenes of the ray surmounted 

 by a divided crown, those of the disk without it. Ray flowers white, in large 

 heads. 



Fields, hill-sides, and cultivated places, chiefly on the littoral. May-July. 



