60 



OEGA.NOGEAPHY AND GLOSSOLOGY. 



appendages are of various shapes and sizes, and niay be produced before or behind 

 the anther. In Borage (fig. 322), the anther is horned; in Self-heal (fig. 323), it is 

 forked, &c. In the Mountain Alyssum, the filaments of the long stamens bear a 



323. Self-healj 

 Stamen (mag.). 



324. Alyssutti. 

 Long stamens. 



325. Alyssum. 

 Short stamen. 



S2(). Butomus. 

 Stamen (mag.). 



321 PoIygMtt. 

 Androecium (mag.). 



329. Mallow. 

 Stamen (mag.). 



toothed wing on their inner face (fig. 324), and those of the short stamens have 

 an oblong appendage at the base in front (fig. 325). 



Anther. — The anther is two-celled {a. lilocularis) , when the two cells are Sepa- 

 rated by a connective {Wallflower, fig. 11) ; each cell being originally divided in two 

 by a partition or plate springing from the connective, of which no trace remains at 

 maturity; — -four-celled {a. quadrilocularis) , when this partition remains {Butomus, 

 fig. 326) '^^-one-celled {a. unilocularis) , when it presents only one cavity {Polygala^ fig. 

 327 ; Alchemillai, fig. 328) ; this often happens, either by suppression of one cell 

 {Malloiv, fig. 329), when the filament is lateral; or by fission of the stamen {Sorn- 

 beam, fig. 330). Sometimes the anther is seated on a flat-lobed connective, when it 

 contains as many cells as there are lobes of the connective {Yew, fig. 331). 



The anther is adnate {a. adnata), when its cells are confiuent with the con- 

 nective throughout their length {Hepatiaa, fig. 332). The connective is sometimes 

 very short, connecting the anthers by a mere point. The anther is didyyttous 

 {a. didyma), when the point of union of the Cells is above their middle {TSuphorhia, 

 fig. 333) ; — two-horned {a. 

 bicornis), when, the point of 

 the union being at the base 

 of the cells, the latter sure 



\ 



, Hornbeam. 

 Stamen (mag.)- 



331. Yew. 

 Flower (mag.). 



332. Hepatica. 

 Stamen (mag.). 



333. Eiipborbia. 

 (7 Flower (mag.). 



\ 



tiU. Heath. 

 Stamen (mag.). 



336. Wheat. 

 Spikelet (mag.). 



erect and slightly diverge {Heath, fig. 334) ;— cruciate, when the point of union 

 of the cells is precisely in the middle, and their extremities are free {Wheat, fig. 335) ;— 



