Stamens. 



85 



describing in another way those of a similar flower: the 

 stamens of triteleia (Fig. 58) are in two sets; those opposite 

 the outer segments (sepals) adherent for two-thirds the 

 length of the perianth tube, and the others adherent up to 

 the summit; the free portions about equalling the versatile, 

 introrse anthers. 



Stamens vary even more than carpels from the typical 

 leaf. The hypothesis that the filament corresponds to the 

 petiole, and that the anther is a modified blade, the lobes 

 homologous with the right and left sides, seems reasonable, 

 but good authorities consider the anther to have more the 

 nature of an appendage or gland-like outgrowth of the leaf. 



Remove one stamen from each kind of flower, noting 

 which side is next to the pistil. Place them in a row, with 

 the inner sides on the left. If 

 there are any with anthers not 

 two-lobed, put them at one end 

 of the line. Next separate those 

 which have the filaments attach- 

 ed to some point between the 

 ends of the anther, as shown in 



Fig. 58- 



Such anthers are versatile. 

 The others are probably all 

 adnate ; that is, the anther grows fast to either the inner or 

 outer side of the filament, which seems to form the back, or 

 nearly flat side, of the anther. If the filament seems to lie 

 between the anther lobes (cells), so that the sides are nearly 



Fig. 64. Flower of hookera and perianth 

 split to show stamens and staminodia; 

 the latter without filaments continued 

 to the base. d. A bud. /. The pistil. 



