ANGlOSPERMiE, DICOTYLEDONES. 



773 



didynamous stamens, but some of them, e.g. those of the genus Salvia (see tig. 271, 

 p. 262), have two stamens, as have also the species of the genus Veronica (see fig. 257, 

 p. 226) of the family Scrophulariacese, and the majority of the Jasminacese and 

 Oleaceee (see fig. 283 2). Most of the Tubiflorae possess five stamens. The curious 

 modification of the androecium of Asclepiadaceoe has been fully described on p. 257, 



Fig. 435.— ilani 

 . Helle^orus ni^er (reducea J). '^ My.surus .ninimu., complete plant with flowers and flower-buds (nat. size). « A single 

 flower of ilyosurus (magnified). 



et sea. In the Apocynacea! the two opposite carpels are separate at the base and 

 connate at the upper end only. The fruit of Labiate and Boraginace^ resolves 

 itself when it is ripe into four one-seeded nutlets. The seeds of Apocynace* and 

 Asclepiadaceoe are furnished with a plume of hairs. In most of the Tub.Bora, the 

 base of the pistil is partially or completely surrounded by swollen t.ssue wh.ch 



