COMPOUND FLOWERS. 327 



fruit flattened, silky; pappus hairy, rough. (Name 

 from the Greek chrysos, gold, and come, hair.) 



25. DIOTIS (Cotton- weed). Pappus ; corolla with 

 two ears at the base, which remain and crown the fruit. 

 (Name from the Greek dis, double, and ous, otos, an ear, 

 from the structure of the fruit.) 



26. TANACETUM (Tansy,). Involucre cup-shaped, im- 

 brfcated ; receptacle naked ; fruit crowned with a chaffy 

 border. (Name altered from the Greek athdnaton, ever- 

 lasting.) 



27. ARTEMISIA (Wormwood). Pappus ; involucre 

 roundish, imbricated, containing but few flowers. 

 (Named after Artemis, the Diana of the Greeks.) 



28. ANTENNA RI A (Everlasting). Stamens and pistils 

 on separate plants ; pappus hairy, that of the barren 

 flowers thickened or feathery upwards ; involucre 

 coloured, rigid. (Name from the antennae of an insect, 

 which the pappus of the barren flower resembles). 



29. GNAPHALIUM (Cudweed). Involucre roundish, 

 dry, imbricated, often coloured ; receptacle naked ; 

 pappus hairy. (Name from the Greek gnaphdlionj.sofi 

 down, with which the leaves are covered.) 



30. FILAGO. Involucre tapering upwards, imbricated, 

 of a few long pointed scales ; receptacle chaffy in the 

 circumference ; pappus hairy ; florets few, the outer 

 ones bearing pistils only. (Name from the Latin filum, 

 a thread, the whole plant being clothed with white 

 thread-like hairs, or down.) 



31. PETASITES (Butter-Bur). Involucre a single row 

 of narrow scales ; receptacle naked ; barren and fertile 

 flowers mostly on different plants. (Name from the 

 Greek petasos, a covering for the head, from the large 

 size of the leaves.) 



IY. EADIATJS. Daisy Group. 



32. TUSSILAG'O (Colt's-foot). Involucre a single row 

 of narrow scales ; receptacle naked ; florets of the ray 



