108 KXGLISII EOTANY. 



unequal, with broad scarious margins, glabrous. Florets of the 

 disk pale-yellow, perfect ; those of the ray erect, linear, ligulate, 

 female, white or flesh-colour, scarcely exceeding the pericline or 

 pappus. Achenes pubescent, shorter than the pappus. Pappus 

 yellowish-white. Plant sub-glabrous or sparingly hairy. 



In waste places and newly - turned and cultivated ground. 

 Local. Plentiful near London, and sparing and rather uncertain 

 in its occurrence in other parts of England. Introduced from 

 North America. 



[England.] Annual. Late Summer and Autumn. 



Stem stiff, erect, 6 inches to 3 feet high, copiously branched 

 with short erect-ascending lateral branches. Leaves very narrow ; 

 the lower ones usually shallowly serrated, the upper ones mostly 

 entii'e. Anthodes very numerous, small, longer than broad. Peri- 

 cline ^ inch long ; phyllaries reflexed after the fall of the achenes. 

 Ray inconspicuous. Achenes whitish. Plant green, sub-glabrous, 

 with tlie edges of the leaves ciliated with short incurved hairs seated 

 on small tubercles. 



Canadian Fleahane. 



French, Vergerelte du Canada. German, Canadiscfie Diirrwurz. 



Tlie English name of this species is due to its reputed power, when biirneil, of 

 destroying fleas. According to M. Losanne, iu a ])aper read to the Agricultural 

 Society of Turin, the hark of ihe plant, after having' undergone the process of soaking, 

 may be made into excellent paper. 



SPECIES II.— ERIGE RON ACRIS. Linn. 



Plate DCCLXXIV. 



Reich. Ic. Fl. Germ, et Helv. Vol. XVI. Tab. CMXVII. Fig. 3. 

 Lillot, Fl. Gall, et Germ. Exsicc. No. 304. 



Annual or biennial. Stem paniculately branched. Eadical 

 leaves oblanceolate, stalked, entire, apiculate ; stem - leaves nu- 

 merous, sessile and semi - amplexicaul, oblong - strapshaped. 

 Anthodes racemose along the stem and branches, or corymbose 

 in small examples. Peduncles simple or nearly so, hairy, not 

 glandular. Pericline obloug-eyliudrical ; phyllaries adpressed, not 

 glandular, linear-subulate, glabrous. Plorets of the disk yellow, 

 central ones perfect, outer ones female ; those of the ray erect, 

 narrowly-linear, ligulate, female, purple, longer than the pericline, 

 and sometimes exceeding the pappus. Pappus reddish-white or 

 white. Plant hairy. 



