40 ENGLISH BOTANY. 
those of the disk turbinate-cylindrical, equally ribbed, with or 
without a crown. 
SPECIES I— CHRYSANTHEMUM SEGETUM. Linn. 
Plate DCCXIII. 
Reich. Ic. FL Germ, et Helv. Vol. XVI. Tab. CMLXXXVI. Fig. I. 
Billot, FL Gall, et Germ. Exsicc. No. 395. 
Zanthoph thai muni segetum, C. II. Schullz, iiber die Tanacet. p. 17. 
Leaves glabrous and glaucous, oblong or oblong-wedgeshaped, 
inciso-serrate or pinnatifid, the lower ones attenuated at the base 
into a winged petiole, the upper amplexicaul. Anthodes solitary, 
pericline nattisk. Phyllaries broadly ovate, with very broad 
light-brown scarious margins and tips. Florets of the ray yellow. 
Achenes of the ray - florets sub - trigonous with narrow lateral 
wings, those of the disk -florets sub-cylindrical, all without a 
crown. 
A weed in cultivated fields. Generally distributed, but becom- 
ing scarce in the more highly cultivated districts through im- 
proved farming. 
England, Scotland, Ireland. Annual. Summer 
and Autumn. 
Stem erect, 12 to 18 inches high, branched, the branches rather 
elongate and spreading-ascending. Leaves slightly fleshy, more or 
less deeply divided ; the uppermost ones sometimes nearly entire. 
Peduncles hollow, enlarged upwards. Anthodes (including the ray) 
1J to 1\ inches across. Pericline slightly umbilicate, with the phyl- 
laries glaucous-green, broadly edged with a dry semi-transparent 
light-brown border. Plorets of the disk very broad, irregularly 
toothed at the apex. Achenes brownish-white, with a compressed 
triangular cross-section from the development of a corky wing 
on each side nearer the outer than the inner face ; achenes of the 
disk without wings. Plant glabrous and glaucous. 
Corn Marigold. 
French, Chryaanlheme ties Bles. German, Saat Wucherhhtme. 
This plant may still be found in onr cornfields, although careful farming has 
greatly diminished its places of habitation, and shortly it may find the garden its only 
place of refuge. It is a very troublesome weed to the farmer, particularly in the turnip 
fields of Norfolk, on a sandy soil. In Denmark there is a law to oblige farmers to 
root it up out of their fields ; and Threlkeld states, in 1727, that in Britain " Mannour 
courts do amerce careless tennants who do not weed it out before it comes to seed ;" a 
laudable practice worthy of being retained. It is generally called the Corn Marigold ; 
