250 



Composite A chillea. 



the ray-florets only. Pappus of five bristles. Involucral 

 bracts in one series, united at the base. Ray-florets toothed at 

 the tip. H. atropurpureum has yellow and brown flower- 

 heads, and H. grandiflorum has them large and yellow. 



Sphenogyne speciosa is a showy South American 

 annual of dwarf stature, bipinnatifid leaves with narrow seg- 

 ments, and flower-heads about 

 2 inches in diameter on long 

 slender peduncles. Bay-florets 

 numerous, yellow ; disk black. 

 There is a variety aurea with 

 orange rays. 



Madaria elegans is an 

 erect glandular annual about 

 2 feet high. Leaves linear, 

 acute, entire. Flower-heads 

 showy, in racemose bracteolate 

 panicles, the terminal ones 

 expanding first. Kay-florets 

 numerous, deeply lobed at the 

 extremity, yellow with a crim- 

 son-brown blotch at the base. 

 California. 



Anthemis tinctoria is a 

 congener of our indigenous 

 Chamomile, growing about 3 

 feet high. Leaves finely di- 

 vided. Flower-heads numerous, 

 bright yellow or occasionally 

 pale yellow, or even white. 

 Native of the South of Europe 

 and a very profuse bloomer. 



25. ACHILLEA. 



Perennials with alternate 

 simple or . compound leaves. 

 Flower -heads small, corym- 

 bose ; involucral bracts oblong, 

 often brown and scarious. Re- 

 Fig. 138. Achiiiea fiUpenftiiina. ceptacle paleaceous. Ray-flo- 

 (inat. size.) rets few, sometimes relatively 

 large and showy. Pappus none. The species are estimated at 



