FLOWERS. 



95 



PLATE XL. 



FIG. 50. Powdered Chamomile Flowers (x 240). 



ebl, Epidermis of tube of ligulate floret. 



e'b'l, The same with gland in profile. 



ei, Epidermis of involucral bract (margin). 



e'l, The same (median portion). 



eib, The same (near base). 



eil, Lower epidermis of ligula. 



esl, Upper epidermis of ligula (near the apex). 



e's'l, The same (middle). 



e"s"l, The a (near the base). 



go, Oil gland (surface view). 



g'o', Oil gland (in profile). 



p, Pluricellular hair. 



pa, Parenchyma from corolla. 



pe, Epidermis of peduncle. 



po, Pollen grains. 



se, Sclerenchymatous cells from receptacle. 



sti, Debris of stigma with papillae. 



sty, Debris of style. 



v, Vessels, etc., from peduncle. 



