Cosmos COMPOSITAE Tagetes 



Key to the Species 



Rays white, pink or red: fr. glabrous; beak shorter than the body 1. C. bipinnatus 



Rays yellow: fr. hispid; beak long and slender 2. C. sulphureus 



1. Cosmos bipinnatus Cav. i^'&.%M (Ta Po Ssu Chii; Large-Persian Chrysanthemum) 

 (B.M.999). Erect annual, to 3 m.; fls. white, pink, red, X. Introduced from 

 Mexico; locally in An., Ku. Cultivated, ornamental. 



2. Cosmos sulphureus Cav. Yellow Cosmos (B.M.999). Erect annual, to 2 m.; fls. 

 yellow, X. Introduced from Mexico; locally in An., Ku. Cultivated, ornamental. 



VI. Helenieae Helenium Tribe {ujIM^IM (Ho Nun Chii Tsu) 



Herbs (ours), rarely woody, with alternate or opposite pinnately divided or simple 

 Ivs. and mostly yellow fls.: heads radiate or discoid: bracts of the involucre scarcely 

 if at all overlapping, sometimes scarious: receptacle not chaffy; pappus of chaffy or 

 bristly- dissected scales: 50 genera, mostly American. 



27. Gaillardia Foug. JihMM (T'ien Jen Chii Shu) 



Erect herbs with alternate, entire or toothed punctate lvs. and large long-peduncled 

 radiate or discoid heads; bracts of the involucre distinct, in 2-3 series; receptacle 

 convex or globose, bristly or nearly naked: rays yellow or yellow and red: style brs. 

 with appendages: frs. 5-ribbed, densely hairy, at least at the base; pappus of 5-10 

 awned scales. 15 species, American; one cultivated in China. (Named for M. Gaillard 

 de Marentonneau, a patron of Botany in France.) 



1. Gaillardia aristata Pursh '31J\~$ (T'ien Jen Chii; Angel's Chrysanthemum) 

 (B.M.1014). Erect perennial herb, to Ira.; fls. yellow and red, IX-X. Introduced 

 from North America; locally in Ku. Cultivated, ornamental. Fig. 385. 



28. Tagetes Linn. TiWWiM (Wan Shou Chii Shu) 

 Erect brg. ill-smelling glabrous herbs with opposite pinnately divided gland-dotted 

 lvs. and long-peduncled solitary or clustered radiate yellow heads; involucre cylindric, 

 the bracts in a single series, united into a tube or cup: fr. compressed or angled; 

 pappus scales few, slender. 20 species, of tropical America; two or more cultivated 

 in China. (Said to be from " Tages ", an Etruscan god.) 



Key to the Species 



Rays numerous, more than 5: heads 3-10 cm. in diam. 



Fls. not marked with red: heads 5-10 cm. in diam 1 . T. erecta 



Fls. usually marked with red: heads 3-4 cm. in diam 2. T. patula 



Rays few, about 5: heads 2-3 cm. in diam 3. T. tenwifolia 



1. Tagetes erecta Linn. African Marigold TjWM (Wan Shou; Chii) Long-life 

 Chrysanthemum) (B.M. 1013). Erect annual, to 1 m.; fls. yellow, VIII-X. Introduced 

 from Mexico; locally in Ku. Cultivated, ornamental. Fig. 386. 



2. Tagetes patula Linn. French Marigold (B.M. 1013). Bushy annual, 2-5 dm. high; 

 fls. yellow and red. Introduced from Mexico; locally in Ku. Cultivated, ornamental. 



3. Tagetes tenuifolia Cav. (T. signata Bartl.) Wi^cM (Hsi Fan Chii) (B.M.1013). 

 Brg. annual, to 8 dm.; fls. yellow. Introduced from Mexico; locally in Ku. 

 Cultivated, ornamental. 



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