GENERAL CHARACTERS OF THE ORDER 471 



form shown at 2, Fig. 147. Each floret or small flower is 

 regular and epigynous ; the corolla gamopetalous and five-lobed ; 

 no calyx exists, or is only present in the form of a minute ring 

 round the upper part of the ovary. The androecium consists of 

 five stamens with filaments attached to the inside of the corolla 

 (epipetalous) ; the anthers of the stamens are united together, 

 and form a tube through which the style passes. (Stamens with 

 united anthers and free filaments are described as syngenesious.) 

 The ovary is inferior and syncarpous, consisting of two 

 united carpels ; within it is a single erect anatropous ovule. 

 The straight style has a divided tip. 



Fig. 147 — I, Capitulum of Ox-eye Daisy CCA?:J'ja«^>5ff- 

 inujn Leucanthemutn\j.'). r The 'ray'; rf the 'disk.' 

 2. ' Disk ' floret (magnified), o The ovary ; c tubular 

 corolla ; a anthers ; s stigma. 3. ' Ray ' floret (magni- 

 fied), o Ovary ; s stigma ; c ligulate corolla , /"fruit. 



The fruit (/, Fig. 147) is one-seeded and indehiscent with a 

 series of longitudinal ribs on its outer surface r it is a kind of 

 nut or achene to which the special name cypsela is given. 

 The seed is without endosperm. 



Besides the disk florets and surrounding them, there is a 

 single ring of white flowers (f) resembling narrow strap-like 

 petals. They form the ' ray ' of the capitulum, and are termed 

 ray florets. Each of the latter is a small unisexual (female) 

 flower, and possesses a white corolla, the lower part of which is 

 tubular, while the upper part is drawn out into a long narrow 



