CARDUACEAE. 407 



Coreopsis lanceolata L., Lance-leaved Tickseed, North American, per- 

 ennial, glabrous, 2° high or less, with slender-petioled, narrowly oblong, entire 

 lower leaves, the upper sessile, linear, sometimes with 1 or 2 lobes, the few- 

 large heads of bright yellow flowers on long slender peduncles, the 3-7-lobed 

 rays about 1' long, the pappus of 2 short teeth, is also grown in flower-gardens. 



Gaillardia pulchella Foug., Shoavy Gaillardia, North American, occa- 

 sional in flower-gardens, is a roughish-pubescent annual, li°-S° high, with 

 oblong to spatulate leaves, the basal ones sometimes pinnatifid ; the few large 

 heads are on long terminal peduncles, with cuneate reddish or orange rays 1' 

 long or more, brown-veined and often purplish at base; the receptacle is bristly- 

 fimbrillate. 



Dahlia rosea Cav., Garden Dahlia, Mexican, is grown in flower-gardens in 

 a variety of forms, mostly double-flowered. [D. variabilis Desf.] Its leaves 

 are pinnate, with 3 or 5 ovate pointed serrate leaflets. 



Centaurea americana Nutt., American Star Thistle, Basket Flower, 

 North American, a tall annual, up to 6° high, roughish, the stem simple, or 

 with few branches, swollen under the large solitary heads, the numerous stem- 

 leaves oblong-lanceolate, sessile, acuminate, 3'-6' long, mostly entire, the nearly 

 hemispheric involucre 2'-3' broad, with many pectinate-appendaged shining 

 bracts, the flowers pink or purple, the marginal ones with radiant corolla-limbs, 

 is occasionally grown in flower-gardens. 



Centaurea Cyanus L., Corn-flower, Blue-bottle, European, frequent in 

 flow^er-gardens is a white-floccose, branched slender annual l°-2i° high, its 

 numerous mucronate stem-leaves linear or linear -lanceolate, 2'-6' long; its 

 flower-heads are on terminal peduncles, the bell-shaped involucre with appressed 

 bracts, their appendages scarious and lacerate, the flowers white, blue or purple, 

 the marginal ones with radiant corolla-limbs V long or longer. 



Centaurea moschata L., Sweet Sultan, Oriental, occasional in flower- 

 gardens is a glabrous, stifl" annual l°-2° high, with linear-oblong, sharply 

 dentate or pinnatifid stem-leaves, terminal peduncled heads of white, yellow or 

 purple, fragrant flowers, the hemispheric or short-ovoid involucre of broad ap- 

 pressed entire bracts, the upper ones scarious-margined. 



Centaurea gymnocarpa Moris. & Not., Velvety Centaury, of Caprea, 

 mentioned by Lefroy as a weed and also recorded by Jones, has not been found 

 wild by recent collectors, but is planted in garden borders. It is a white- 

 velvety perennial, with deeply pinnatifid basal and lower leaves 6'-8' long, the 

 narrow blunt segments entire or few-toothed, the erect stem l°-2° high bearing 

 panicled heads less than 1' broad, of violet or rose-purple flowers. 



Tanacetum vulgare L., Tansy, European, commonly grown in gardens, is 

 mentioned by H. B. Small as sometimes escaped; we liave not seen it wild. 

 Tansy is a perennial herb about 2° high, with finely cut leaves and small heads 

 of yellow flowers in nearly flat-topped clusters. 



Arctotis stoechadifolia Berg., Blue Arctotis, South African, a whitish- 

 velvety herb l°-2° high, with pinnatifid or variously lobed stem-leaves 3'-6' long, 

 and solitary or few, long-peduncled heads, the involucre subglobose, the nar- 

 row pale biue rays 1' long or less, is grown in flower-gardens. 



Melampodlum perfoliatum (Willd.) H.B.K., Mexican, a tall annual with 

 opposite broad thin angulate-lobed leaves and slender-peduncled heads of 

 small yellow flowers, the involucre of 5 large ovate bracts, recorded by Reade 

 as rare in plantations prior to 1883,. has not been observed by recent collectors. 

 [Wedelia perfoliata Willd.] 



Crassina elegans (.Jacq.) Kuntze, Garden Zinnia, Mexican, commonly 

 grown in flower-gardens, is a pubescent annual l°-3° high, with ovate to ovate- 

 lanceolate, entire acute sessile and clasping leaves l'-3' long and peduncled 

 heads of purple red yellow or white flowers, the involucre with elliptic 



