ANTHER, AND ITS POSITION. 45 
stamens (f. 10.); in this example the term polyadel- 
phous, or many brotherhoods is used. 
The stamens in the Pea (f. 11.), are ten in number, 
and it will be found that nine are united into one 
packet, and one remains separate; this has the term 
diadelphous, or two brotherhoods applied to it. 
(8. The Anther (f. 8. a.) consists of two small 
hollow cases, placed side by side on the end of the 
filament, which appears to pass between them (f. 12. ¢ ) 
and is termed the connective ; and the anther is said to 
be adnate, united to the filament. Sometimes the 
filament supports the anther on its point, as in the 
Cherry (f. 12. d.), when it is called innate. In Grasses 
the anther is supported by its middle (e) from the end 
of the filament and is free enough to swing in the air; 
the anther is then said to be versatile, or oscillating. 
64. Insome flowers, as in the Hollyhock and Mallow, 
the anther is composed of but one case. In the Dan- 
delion, Sunflower, Violet and Heartsease, the anthers 
are united together by their sides. 
65. The cells or cavities of the anther open at some 
period, either by a slit, which is the usual way, or by 
means of a small hole or pore at the upper end, as in 
the flower of the Potato (f. 18.), and Heaths; or by 
means of a valve, or small portion of the side of the 
anther curling upwards like a lid (f. 14.) ; and by these 
means the pollen is discharged from its cases. The 
pollen is serviceable in fertilizing the ovules or germs 
of seeds contained in the ovary, and consequently a 
part falls upon the stigma for this end. 
66. The pollen, viewed under a powerful glass, 
