C4 



JlUW I'LA.NT.S AliK rUurAtiATKI). 



1^1 



'■! 



IVtil. 



loa 



St,iin<Mi. I'istil. rum. Slaiiii'ii. 



192. Tliis is a coniplpto and rc'fjtilar yot simple flowor ; nnd will serve as a 

 pattern, willi which a great variet" " Uowers may be compared. 



193. When we wish to desi^iate the 

 leaves of tiie hlossom by one word, we call 

 them the I*i'ri((nth. This name is formed 

 of two ({reek words nu'anin<]f "around the 

 flower." It is convenient to use in eases 

 where (as in the Jjilies, illustrated on the 

 first pn^'e) we are not sure at first view 

 wjietlier the leaves of the flower are calyx 

 i'.t;ii or corolla, or l)oth, 



19.4, A J'ctal is sometimes to he distin- 

 ^'uislied into two parts; its Itlddr, like the 

 hladc of a leaf, and its (Vair, whicii is a 

 kind of taperin<j base oi- foot of llie l>l;ide. 

 ]\Iore connnoidy there is only a blade; but 

 the petids of Jlo.ses have a very sliort, nar- 

 row base or claw; those of ]\Iustard, a 

 lon;j^er oiu> ; those of Pinks and the like, a 

 narroM- claw, which is jjfenerally longer than 

 the blade (Fig. 308). 



195. A Sfa))iP!i, as we have already learned (15, 17), generally consists of two 

 parts; its Fildnii'iit and its Aiit//rr. But the filament is only a kind of footstalk, 

 no more necessary to a stamen than a petiole is to a leaf. It is therefore some- 

 times very short or wanting; when the anther is si'K^i/e. 'J'he anther is the 

 essential ])art. Its use, as we know. i,s to [troduce pollen. 



196. 'I'he Pn/frit is the mailer, looking like dust, which is shed 

 from the anthers when they open ( l^'ig. 159). }\rve is a grain of 

 pollen, a single i)article of the line ])owder shed by tiie anther of a 

 ]Mallow, as seen highly magnified. In tiiis plant llie grains are beset 

 with bristly points; in many plants they are smooth; and they differ ^'^''^^''-i^'"'"- 

 greatly in appearance, size, and shape in different species, but ai(^ all just alike 

 in the same species; so that the family a plant l)elongs to can often be told by 

 seeing only a grain of its pollen. The use of the pollen is to lodge on the stigma 

 of the pistil, where it grows in a peculiar way, its inner coat projecting a slender 



.S.lHll. 



Si'iial. 



l.V. 



