THE STAMENS, OB ANDRECIUM. 101 



345 34G S4T 848 349 350 351 852 353 354 



Peculiar forms of stamens. 345, Pyrola rotundifolia; p, dehiscence by pores at top. 850 

 Vaccinium uliginosmn ; p, dehiscence. 347, Berberis aquif<ilium, anthers opening (34G) by 

 valves upward. 34S, Anther of Violet, introrse, with an appendage at top. 349, Oleander, sagit- 

 tate, appeudaged. 354, Catalpa, lobes of anther separated. 351, Sage, lobes of anther widely 

 separated, on stipes ; b, barren lobe without pollen. 352, Malva, anther 1-celled. 353, Ephedra 

 (after Peyei), anther 4-celled. 



500. The cells of the anthers are at first commonly four, all 

 parallel, becoming two only at maturity. In some plants the four are 

 retained, as in the anthers of Ephedra. (353.) In others, as mallows, 

 all the cells coalesce into one. (352.) 



501. Appendages of many kinds distinguish tho stamens of different species. 

 In the Ericaceas there are horns, spur?, tails, queues, etc. In onions and garlic the 

 filament is 2 or 3-forked. bearing the anther ou one of the tips. Sometimes a pair 

 of appendages appear at base, as if stipulate. It is often conspicuously clothed with 

 hairs, as in Tradescantia. 



859 



356 853 860 SGI 



Essentitl organs. 355, Rhododendron, five stamens («), one pistil (p), oblique or slightly ir- 

 regular. 357, Flower of jfisculss (Buckeye), regular, 5- toothed calyx (c), very irregular 4-pe- 

 taled corolla, seven stamens unequal, one style («). 359, Flower of Hydrastis; «, sepals decidu- 

 ous. 360, Same, showing the distinct pistils and <me st imen remaining 861, Anemone thalic- 

 troides, the gynoecium or distinct, ribbed achenia. 356, Trillium, six stamens (fi\ three pistils 

 (p). 35S, Staphylea trifolia. 



