GROSS ANATOMY OF FLOWERING PLANTS. xxxi 
style of the pistil, as in the Orchids: such are said to be gynan- 
drous. 
Structure of Stamens,—Each individual stamen is composed of 
Fie. XXVII. Fie. XXVIII. Fie. XXIX. 
Fie. XXVIL—Andrcecium of monadelphous stamens. 
Fie. XXVIIL—Androeecium of diadelphous stamens. 
Fie. XXIX.—Andrcecium of triadelphous stamens. 
an anther, containing one or more pollen-sacs, borne upon a stalk 
known as the filument. (Fig, XXX.) 
The principal terms which designate the structural relation be- 
tween the anther and the filament are: 
Adnate, applied to anthers which are adherent to 
the upper or lower surface (anterior or posterior) of 
the filament; when on the upper surface the anthers 
are introrse ; when on the lower, ertrorse. 
Innate, applied to anthers which are attached lat- 
erally to the upper end of the filament, one lobe 
being on one side, the other on the opposite one. 
The part of the filament between the two anther- 
lobes is designated the connective; it is subject to 
many modifications of form, and often becomes sep- Wye, Xxx— 
arable by a joint at the base of the anther from the ser ct, fil, 
rest of the filament. anlents b, an- 
Versatile is applied to anthers which are lightly ; 
attached to the top of the filament, so as to swing easily; these 
may also be introrse or extrorse. 
THE GYNGCIUM. 
Numerical Terms.—The gyncecium is made up of one or more 
carpels (curpids or carpophylla)—i.e., ovule-bearing phyllomes, 
and it is said to be mono-, di-, tri-, tetra-, penta-, etc., and poly- 
