THE STAMENS, OR ANDRECIUM, 



101 



883 354 



Peculiar forms of stamens. 845, Pyrola rotundifolia ; p, dchisceBco by pores at top. 880 

 Vaceinium uliginosum; p, dehiscence. 847, Berberis aquifolinm, anthers opening (346) by 

 valves upward. 848, Anther of Violet, introrse, with an appendage 'at top. 849, Oleander, sagit- 

 tate, appendaged. 854, Gatalpo, lobes of anther separated. 851, Sage, lobes of anther widely 

 separated, on stipes ; &, barren lobe without pollen. 852, Malva, anther l-celled. 853, Ephedra 

 (after Peyer), 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 the stamens of different species. 

 In tiie Ericaceae there are horns, spurs, tails, queues, etc. In onions and garlic the 

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

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

 hairs, as in Tradescantia. /^ 



86T 859 



856 



861 



Essential organs. 355, Ehododendron, five stamens («), one pistil (P), obUque or slightly ir- 

 regular. 85T, Flower of >®sculas (Buckeye), regular, 5-toothed calyx (o), very irregulor 4-pe- 

 tsled corolla, seven stamens unequal, one style (s). 859, Flower of Hydrastis ; «, sepals decidu- 

 ous. 860, Same, showing the distinct pistils and one stamen remaining. 861, Anemone thaUc- 

 troidea, the gynaicium of distinct, ribbed achenia, 856, Trillium, six stamens (»), three pistils 

 (p). 858, Staphylea trifolia. 



