44 A USTRALIAN BOTANY. 



gynous, fig. 9 ; or epigynous, fig. 8 : or they are gynandrous, 



adhering with the pistil into a column, as in the Orchis. 



Cohesion, adhesion, and suppression of the whorls are 

 conditions of the flower which should be well studied. 



Cohesion and adhesion mean growing together — that is, 

 cohesion, a union of like parts, as stamens with stamens, or 

 petals with petals ; adhesion, union of stamens to corolla, 

 of ovary to calyx, corolla to stamens, etc. The term 

 suppression implies that an organ has been arrested in its 

 growth, or has never been fully developed. In some 

 flowers, as stated p. 42, the corolla is absent, in others the 

 stamens as well as the corolla, or the corolla and pistil. A 

 single series of organs therefore very often constitutes the 

 flower, as the pistil by itself, or the stamens, minus all 

 other parts. For illustrations in the above, see Limicean 

 System, p. 62. 



^Estivation of a flower, means the arrangement of its 

 petals, or parts of them, in the bud. 



The pistil 1 (Plates IV. and V., p) or pistils — for some 

 flowers have more than one — is generally a tube fixed on 

 the top of the ovary, and communicating with it inside the 

 stamens. Sometimes it is seated on a disk {between the 

 stamens and ovary).- The pistil usually consists of three 

 parts — the thread-like style* (Plates IV. and V., a i), the 

 stigma 1 (Plates IV. and V., a 2), and the germen or ovary 

 (Plates IV. and V., a 0). The style is not absolutely 

 necessary for the perfection of the pistil. 



1 Pistil, a seed-bearer. 



2 In the first edition of this work, p. 34, a clerical error occurs 

 regarding the parts of the pistil. The stigma and ovary are necessarily 

 the essmtial parts of the pistil. 



3 Style, a rod. 4 Stigma, a point or apex. 



