m 



GENUS XLVIII. PYRETHRUM. 

 Syn. Pol. Siiperflua. Sex: Ssat.- 



Deriv. From Pyr, fire, alluding to the hot taste of the roots. 



Gen. Char. Capitula heterogamous : ray ligulate, 1-series^ 

 female ; disk hermaphrodite, 4r-5-toothed : acheenia wingless, fur-, 

 nished with a crown-like pappus, equal to its diameter. — Annuals 

 or perennials, with alternate, dentate or lobed leaves : involucre- 

 campanulate, scales scariose on the margin ; receptacle flat, naked 

 or sometimes bracteolate : disk yellow : ray white or yellow. 



(1) P. Indicum. (Cass.') 



Ident, Dec. prod. VI. p. 62.— Cass. Diet. XL. IV, p. 149.— « 

 (not Roxb.) 



Syn. Chrysanthemum Indicum, Linn. — C. Japonicum, Thumbs. 

 "— C. tripartitum. Sweet. 



Engrav. Sweet. Brit. fl. Gard. t. 193. — Rheede Mai. X. t. 44.. 

 — Rumph. Amb. V. t. 91. f. 1. — Bot. Reg. XV. t. 1287. 



Spec. Char. Stem fruticose, branched : branches pubescent at 

 the apex : leaves petioled, ovate, cut or pinnatifid, frequently tooth- 

 ed, flaccid, uppermost ones quite entire : involucral scales very 

 obtuse, broadly scariose at the margin : ligulse a little longer than 

 the involucre : flowers smallish, yellow. 



Dindigul mountains, flowering nearly all the year. Decandolle- 

 Buggests that it may probably have been introduced by cultivation. 



GENUS XLIX. ARTEMISIA. 



Syn. Pol. Superfliia. Ses: Syat-. 



Deriv. Artemi, the Greek appellation for Diana ; so named 

 from the plant having been used for bringing on precocious puberty.. 



Gen. Char. Capitula discoid, homogamous or heterogamous. i 

 florets of the circumference 1-series, usually female, 3-toothed, with 

 a long exserted bifid style, of the centre 5-toothed, hermaphrodite 

 or male by abortion : achaenia bald, obovate, with a small epigynous 

 disk. — Herbaceous or suffruticose plants : leaves alternate, various- 

 ly lobed : capitula spicate or racemose : involucre imbricated : scales 

 dry on the margin : receptacle naked or hairy : flowers yellow or 

 purple, 



(1) A. glabrata. (Wall.) 



Ident. Wall. Cat. No. 413.— Dec. prod. VI.. p. 100. 

 Engrav. Wight's Icon, t, 1111, 



