SECTION 



9.] 



STAMENS. 



99 



282. Insertion, or place of attachment. The stamens usually go with 

 the petals. Not rarely they are at base 



Epipetalous, that is, inserted 

 on (or adnate to) the corolla, as 

 in Fig. 283. When free from 

 the corolla, they may be 



Hi/pogynous, inserted on the 

 receptacle under the pistil or 

 gynoeoium. 



Ferigynous, inserted on the 

 calyx, that is, with the lower 

 part of filament adnate to the 

 calyx-tube. 283 



Epiggnous, borne apparently on the top of the ovary ; all which is ex- 

 plained in Pig. 270-274. 

 Oynandroua is another term relating to insertion of rarer occurrence, 

 that is, where the stamens are 

 inserted on (in other words, 

 adnate to) the style, as in 

 Lady's Slipper (Pig. 284), and , 

 in the Orchis family generally. 

 283. In Relation to each 

 ' Other, stamens are more com- 

 monly 



DistiMt, that isTwithout any 

 union with each other. But 

 when united, the following 

 technical terms of long use 285 

 indicate their modes of mutual connection : — 



Monadelphom (from two Greek words, meaning "in one brotherhood"), 

 when united by their filaments into one set, usually into a ring or cup 

 below, or into a tube, as in the Mallow Pamily (Pig. 286), the Passion- 

 flower (Pig. 260), the Lupine (Pig. 287), and in LobeUa (Pig. 285). 



Diadelphom (meaning in two brotherhoods), when united by the fila- 

 ments into two sets, as in tlie Pea and most of its near relatives (Pig. 288), 

 usually nine in one set, and one in the other. 



Triadelphous (three brotherhoods), when the filaments are united in three 

 sets or clusters, as in most species of Hypericum. 



Fio. 283. Corolla of Momiog Glory laid open, to show the five stamens inserted 

 on it, near the base. 



Fio. 284. Style of a Lady's Slipper (Cypripedium), and stamens united with it ; 

 a, a, the anthers of the two good stamens ; st, an abortive stamen, what should 

 be its anther changed into a petal-like body ; atig, the stigma. 



Pio. 285. Flower of Lobelia cardlnalis, Cardinal flower ; corolla making approach 

 to the ligulate form ; filaments (st) mouadelphous, and anthers (a) syngeuesious. 



