CHAP. VI.] SCHEDULES. 63 



be used at present in describing the flower in the columns 

 of the schedule, and if any have been forgotten, to turn 

 back to them, by referring to the Index. 



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 the Mustard- 

 flower there are four free sepals ; and in Rose Periwinkle 

 and Sweet Basil five coherent sepals. This number must, 

 therefore, be entered opposite to sepals, under the No. 

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

 organ, necessarily indicate Suppression, when such occurs. 

 Thus in Basil, 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 rudiment 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 the Orange-flower 

 being described, gamosepalous would be entered in this 

 column, opposite to calyx ; the calyx being gamosepalous 

 owing to cohesion of the sepals. Poppy and Mustard, on 

 the other hand, would be described in the same place as 

 polysepalous, the calyx being polysepalous from the absence 

 of cohesion of the sepals. 



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

 in like manner, express or involve adhesion of parts, or the 

 absence of adhesion. Thus, in the case of the three plants 

 just referred to, ififerior would be entered in this column 

 opposite to calyx, the calyx being inferior because there is 

 no adhesion between it and the ovary. Were Melastoma 



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