THE FLOWER 



197 



greenish leaves, sepals; the inner, Ughter-colored ones, 

 petals. The sepals taken together form the calyx, and the 

 petals, the corolla. Where the petals and sepals are all 



-§stig 



266 



267 



265 



Figs. 265-267. — Flower of a monocotyl (star-of -Bethlehem), with superior 

 ovary dissected : 265, entire flower, showing the different sets of organs : pet, 

 petals ; sep, sepals ; sta, stamens ; pist, pistil ; pcd, peduncle ; 266, side view with 

 all the petals and sepals but two removed to show order of the parts : r, recepta- 

 cle ; o, ovary ; sty, style ; stig, stigma — parts composing the pistil ; /, filament ; 

 a, anther — parts composing the stamen ; 267, cross section of the ovary : c, c, car- 

 pels ; ov, ovules ; pi, placenta. 



separate and distinct, as in the tulip and the star-of-Bethle- 

 hem, the corolla is said to be polypeialous and the calyx 

 polysepalous, words meaning, respectively, many-petaled 

 and many-sepaled. Monopetalous and monosepalous, or 



268 



269 



Figs. 268-269. — Yucca blossom : 268, external view: 6r, bract ; p<f, peduncle ; 

 r, receptacle ; s, sepal ; pet, petal ; 269, vertical section : ped, peduncle ; br, bract ; 

 r, receptacle ; per, perianth ; sta, stamen ; o, ovary ; nty, style ; stg, stigma. The 

 last three parts named compose the pistil. 



sympetalous and synsepalous, are terms used to describe a 

 condition in which the petals or sepals are all united into 

 one, as in the morning-glory and lily of the valley. In many 



