THE FLOWER DEFINED.~THE EMBRYO. 



the Embryonic Vesicle (Fig. 3, A, ve), which becomes the 

 embryo. All the other parts of the ovule, as well as of 

 the plant, consist of many united cells ; but this vesicle, 

 before fertilization, is a simple cell, like the spore in Cryp- 

 togamia. At first it has a neck called Suspensor, as in the 

 figures in C ; but this suspensor soon disappears, except in 

 Gymnosperms, in which it persists. 



19. The Male Flower in Phanerogamia is called an An- 

 ther. It is USU- ,^;^-v~.— , 



ally raised on ^•SlJM/) o /N'' 



a stalk called a 

 Filament, as in 

 the Vine (Fig. 

 4 1,) and Cherry 

 (Fig. 5, 5); and 

 the two together 

 — anther and 

 filament — form 

 the Stamen 

 (from Gr. istemi, 

 I stand). When 

 the filament is 

 wanting the an - 

 ther is sessile. 

 The anther 

 has two lobes, 

 which are at 

 once united and 

 separated by a 

 ridge or line 

 called the 

 Connective (Fig. 4, 1). Usually the connective is a mere 

 prolongation of the filament ; but sometimes it is a well- 

 defined body, as in the Almond. The anther contains a 

 fine dust called Pollen (L. flour-dust). This consists of 

 minute separate cells called pollen-grains. Each grain has 

 two coats (Fig. 4, 2 to e) : the Irdine, or inner, the Extine, 

 or outer. The extine is often beautifully figured or orna- 

 mented. Each type of plant has its peculiar pollen-grains, 

 characterized by special forms and markings. The pollen- 



FiG. 5.— 1, vertical section of fl. of Primrose {Primvla elatior)^ 

 sbowing many ovules on a free central placenta, stamens on a 

 monopet, corol. 2, vert. sec. of fl. of Comfrey {Symphytum) ; 

 corolla and two ovaries removed. 3, pistil of Barberry {Ber- 

 berin); style short, thick; stigma shield-like. 4, transverse 

 section of ovary of Lily {Lilium), three-celled. 5, vert. sec. of 

 fl. of Cherry (Oernnis w«/^aWs), petals removed; two pistils, 

 many stamens. 6, pistil of Fea {Pisurti) opened ; a, ovule ; b, 

 placenta ; /, funiculus. 



