THK rJ.oWEIl. 



a: 



To sum up tlio irro;?ulai'iticw ot flowers !is tlioy actiially exist, lot altiiost 

 Miy one bt( coinpiired with ii tvpifiil flower, wliit^h is perfecti liiiviiifjf both 

 kiiuls of csHcntiiil orgiiiis ; complete, hiiviiij,' all liif soils of or.i^uiiH 

 >viiieh any flower jjossesscs, niiiiiily, calyx, corolla, staiiieiis, and pistilH ; 

 regular, all i)arls of each set being alike ; symmetrical, with the Hanio 

 inuiil)er of ])arts in each wet 



Tlie arrangement of the floral organs upon the I'eceptaclo next demands 

 attention. 



^ The calyx is commonly attached to the lower border of the receptacle ; 



.-C^kf^k 



Fio. (59. — Pi'ri.i.'vniinK stnmonH and petals 

 uf Ihi: poui^h. 



Flo. 70.— rcTiyyiioUh itaincns aiul pctnl«of Iho 



wild IMM'. 



the corolla next above, its petals alternate witli or oi)posito the sepals ; 

 above the corolla are the stamens, and above these the pistils. lu such an 

 orderly arrangenient as this the organs beneath the pistils arc said to be 

 hypogynous, and the pistil, in relation to them, is said to be superior 

 (Figs. G7 and 68). All tlio organs in this case arc inserted on the re- 

 ceptacle. 



In other cases the calyx and pistil only have direct relat'' a with the 

 receptacle, the corolla and stamens being inserted on the former ; they are 

 then said to be perigynous (Figs. GU and 70). Again, the calyx may be 



FiQ. 71.— Calyx— superior. Fig. 79.— Calyx— hnlf-Hiiperlor.- 



coherent with the pistil in -whole or in part ; in these cases the calyx is 

 said to be superior or half-superior (Figs. 71 and 72), while the corolla 

 and stamens are, as before, perigynous. In Cit.->e the tube of the calyx 

 ends at the summit, of the ovary, its lobes as well as the petals and sta- 

 mens appearing as if inserted on the ovary, they are termed epigynous. 



