vi.] THE SCHEDULE. 53 



2. The column headed No. (number) is to be filled 

 with the real number of parts, whether free or coherent, 

 in each of the four series of organs (calyx, corolla, 

 stamens, and pistil) which compose the flower. Thus, in 

 Buttercup, there are five free sepals, and in Deadnettle 

 and Primrose five coherent sepals. This number must 

 therefore be entered opposite to sepals, under the No. 

 column, and so on. These numbers, or a o opposite to 

 an organ, necessarily indicate Suppression, when such 

 occurs. Thus, in Deadnettle, with five sepals and five 

 petals, there are but four stamens, one being suppressed, 

 as we infer from the general constancy with which the 

 parts, in each series of the flower in plants generally, 

 correspond in number, or are multiples. 'We often find, 

 however, more direct evidence in the presence of a rudi- 

 ment of the suppressed organ. 



3. The column headed Cohesion is to be filled up with 

 those terms which express or involve cohesion of parts, 

 or the absence of cohesion. Thus, were Buttercup being 

 described, polysepalous would be entered in this column, 

 opposite to calyx, the calyx being polysepalous from the 

 absence of cohesion between the sepals. Deadnettle and 

 Primrose, on the other hand, would be described in the 

 same place as gamosepalous, the gamosepalous condition 

 arising from cohesion of the sepals. 



4. The last column, headed Adhesion, is for terms 

 which, in like manner, express or involve adhesion, or 

 apparent adhesion, of parts, or the absence of adhesion. 

 Thus, in the case of the three plants just referred to, 

 inferior would be entered in this column opposite to 

 calyx, the calyx being inferior because there is no adhe- 

 sion between it and the ovary. Were Parsnip being 

 described, the term superior would be entered in the 

 same place, as in this plant the limb of the calyx becomes 

 superior from the assumed adhesion of its tube to the 

 ovary. 



5. The terms employed in filling up schedules are : 



Of the CALYX (cohesion or its absence), polysepalous, 

 gamosepalous; (adhesion or its absence) inferior, 

 superior. 



