THE STAMENB, OH ANDBECinM. 



101 



8S8 SM 



Peculiar forms of stamens, 845, Pyrola rotnBdifolIa ; p, deblscence by pores at top. 300 

 Vacclnium uliginosum; jp, dehiscence. 847, Berberis aquifolium, anthers opening (3i6) by 

 valves upward. 848, Anther of Violet, introrse, with an appendage at top. 849, Oleander, sa^t- 

 tate, appendagod. 854, Gatalpa, lobes of anther separated. 851, Sage, lobes of anther widely 

 separated, on stipes ; 5, barren lobe without pollen. 853, Malva, anther 1-celled. 868, Ephedra 

 (after Feyer), anther 4-c6lled. 



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 the Ericaceae there are horns, spurs, tails, queues, etc. In ouion.'S and garlic the 

 filament is 2 or 3-forked, bearing the anther on 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. 



856 858 860 861 



Essentiil organs. 356, Rhododendron, five stamens («), one pistil (p), oblique or slightly ir- 

 regular. 3»7, Flower of .fcculus (Buckeye), regular, 6-toothed calyx (c), very irregular 4-pe- 

 taled corolla, sevin stamens unequ-al, one style («). 859, Flower of Hydrastis; «, sepals decidn- 

 ous. 360, Same, showing the distinct pistils and one stamen remaining. 861, Anemone thalic- 

 troides, the gynoeckim of distinct, ribbed achenia. 856, Trillium, six stamens («), three pistU* 

 (p). eS^ Btaphylea trlfolia. 



