308 Notes on Indian Botany. 



auricle-like pappus equal to its diameter. Annuals or peren- 

 nials, leaves alternate, dentate, or lobed : involucrum campa- 

 nulate, scales scariose on the margin : receptacle flat, naked 

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

 [To this genus Chrysanthemum Indicum of the gardens, be- 

 longs.] 



54. Chrysanthemum, (D. C. 6-63). This genus differs 

 from the two preceding in having the achaenia of the ray 3- 

 winged, two lateral and the 3rd on the interior side, those of 

 the disk roundish, with a short wing on the interior side. 

 Herbs or shrubs : ligula white or yellow, or white with a 

 yellow tube : disk yellow or rarely purple. 



55. Artemisia, (Lin. D. C. 6-93). Capitula discoid, homo- 

 gamous or heterogamous : flowers of the circumference 1- 

 series, usually female 3- toothed, with a long exserted bifid 

 style ; of the centre 5-toothed, hermaphrodite or male by abor- 

 tion : achaenia obovate bald with a minute epigynous disk. 

 Herbaceous or suffruticose : leaves alternate, variously lobed ; 

 capitula spicate or racemose : involucrum imbricated : scales 

 dry on the margin : receptacle epaleaceous, naked or hairy : 

 flowers yellow or purple. Plants more or less bitter and aro- 

 matic. 



56. Tanacetum, (Less. D. C. 6-127). Capitula homo or 

 heterogamous, one row of 3-4-toothed female flowers in the 

 circumference, those of the disk 4-5-toothed : achaenia angled 

 glabrous, with a large epigynous disk : pappus none or mem- 

 branaceous crown-like. Herbs or shrubs, leaves variously 

 divided : capitula solitary or corymbose, globose : involucrum 

 campanulate, imbricated : receptacle naked, convex : flowers 

 yellow. 



57. Myriogyne, (Less. D. C. 6-139). Capitula heteroga- 

 mous, marginal flowers many series female tubular scarcely 



