THE FLOWER 



137 



stalk, or they may be attached by a distinct stalk, the Funicle or 

 Funiculus (Fig. '2'27). 



22T --'^ 2-2S) B3U 



227-230. Ovules: 227, a cluster iit ovules, pendulous on their f unioles ; 228, 

 section of the ovary c^i a Buttercup, lengthwise, showing its ascending 

 ovule ; 229, section of the ovary of Buckwheat, showing the erect ovule ; 

 2o0, section of tlie ovary of Anemone, showing its suspended ovule. 



279. In structiire an ovale is a pulpy mass of tissue, usually with 

 one or two coats or covering.?. Tlie following parts are to be noted ; 

 viz. : — 



Kernel or Nucellu-S, the body of the 

 ovule. In tlie Mistletoe and some related 

 plants, there is only this nucellus, the coats 

 being wanting. 



Teguments, or coats, sometimes only one, 

 more commonly two, an outer and an inner 

 one. 



Orifice, or Foramen, an opening- 

 through the coats at the organic apex of the 

 ovale. In the seed it is micropijle. 



CiiALAZA, the place where the coats and 

 the kernel of the ovule blend. 



HiLUM, the place of junction of the funiculus with the body of the 

 ovule. 



280. The Kinds of Ovules. — The ovules in their growth develop in 

 three or four different ways, and thereby are distinguished into 



231. Longitudinal sectionof 

 an ovule enlarged, 

 showing the parts: 

 (/, outer coat; h^ 

 inner coat ; c, nu- 

 cellus ; d, raphe. 



s. 



^:o 





232-235. Ovules: 232, orthotropons ovule of Buckwheat: c, hiluni and cha- 

 laza ; /, orifice; 233, carapylotropons ovule of a Chickweed : c, hilum 

 and chalaza ; ,/', orifice; 2.':i-t, amphitropous ovule of Mallow : f, orifice ; 

 h, hilum ; r, raphe ; c, chalaza ; 235, anatropous ovule of a Violet ; the 

 parts lettered as in the last. 



Ortholro/inus, or slraif/Iil, those whicli develop without curving or 

 turning, as in Fig. 232. The chalaza is at the insertion or base; the 



