LKSSON 15.] SO-CALLKl> COMPOUND KLOWKR3. 



107 



axil it prow ; and also ono Itclonjrinp; to (he niarjiin, or rny, with 

 a strap-sliapt'd corolla ('•), b<jrn(; in the axil of a leaf or bract of 



the involucre {d). Here the ray-flower consists merely of a strap- 

 shaped corolla, raised on the small rudiment of an ovary ; it is 

 therefore a neutral flower, like those of the ray or margin of the 

 cluster in Hydrangea (229, Fig. IG7), only of a different shape, 

 lyiore commonly the flowers with a strap-shaped corolla are piS' 

 tillate, that is, have a pistil only, and produce seed like the others, 

 as in Whiteweed. But in the Dandelion, Succory (Fig. 221, 222), 



-3 



and all of that tribe, these flowers are perfect, that is, bear both 

 stamens and pistils. And moreover all the flowers of the head are 

 strap-sha])ed and alike. 



278. Puzzling a^ these strap-shaped corollas appear at first view, 

 an attentive inspection will generally reveal the plan upon which 

 they are constructed. AVe can make out pretty phiinly, that each 

 one consists of five j)etals (the tips of which commonly appear as five 

 teeth at the extremity), united l)y their contiguous etlges, except on 



FIO. 2-3(1. A slirp of Fir. 210, more piilarppil, with ono tiiliiilnr porfori llowor (a) loft 

 ■t.indiDR i>n Hie rocept.nrle, with its lirnrllrl <ir rhnir (A), one lisnlate, iieiitml ray-duwer (e). 

 and pari of another : i/, Hprlion of lirarlti or leaves of ilic Involiirre. 



Flu. 2Jt>. lload uf lloweru ufSuccury, cul (liruiiKli lun|{tliwiHa and enlarged. 



