i bt PLE ah ee Geel 2 |} ‘why =\ 207 ~~ > Vat © <b apa iws ket 2. a= * 
an f 5 BEE so T} => tt ie ae . Fes hn *: a oe Tahal, ae Se Ae) | SSS Rate 
: we f ‘ aia of ie rites Nis ‘ 
ye ae oat N ei - 
ee v . a > 
sf ‘ ~y ae 
: 14 os tructural se Ph psiological Botany, Y a tar kes 
alternate with Phere: The diagrams Pigs, 205, 2061 bring 
out analogous. points of structure. Seis 
All the different parts of the flower frequently stand free sat 
on the base or receptacle of the flower, as in the various 
species of Ranunculus, but are often coherent or adherent to. ¢ 
one another. Thus in the dead-nettle, borage, &c., the 
stamens are adherent to the corolla, and in Daphne (Fig. 
207) to the perianth ; in the Malvaceze (Fig. 275, p. 139) the oe 
Fic. 207. — Longitudinal section Fic. 208. Tonsipiiet section through 
through the flower of Daphne the flower of Rhamnus Frangula, show- 
Laureola, showing the stamens ing the lower part of the calyx, corolla, 
adherent to the perianth. and stamens adherent to one another. 
filaments of the stamens are coherent in their lower part into 
a tube; in Orchidez the single stamen is adherent to the 
pistil, &c. When the calyx, corolla, and stamens adhere to 
one another at their base, the flower is said to be calycifloral 
(Fig. 208) ; thalamifloral when the various parts stand free 
on the receptacle (Fig. 209). | 
Special importance is attached to the relative positions ee 
of the perianth-whorls and stamens in relation to the pistil, 
or to their zzsertion ; the ovary [the lower part of the pistil] ; 
being znferior or superior in relation to the superior or 
inferior calyx, corolla, and stamens. ‘Thus the ovary. 1s ay 
1 Tn all the diagrams, the ler is shaded a lighter colour than the 36 
corolla. | 
