74 NOMENCLATURE OF THE FLOWER. 



d. Polyphyllons when more than three leaves, as in the ra- 

 nunculus. 



5. Margin .-From the divisions of its margin, a pe- 

 rianth is entire, serrated or ciliated. 



a. Entire being without any irregularity, as with most plants. 



b. Serrated sawed at the edges, as in some species of St. 

 John's wort. 



c. Ciliated fringed with hairs, as in some species of centaury. 



6. Figure: From the figure of a perianth, it is tu- 

 bular, spreading, reflexed, or inflated. 



a. Tubular running in the form of a tube, as in the thorn-apple. 



b. Spreading with spreading leaflets, as in the officinal borage. 



c. Reflexed bent back, as in the dandelion and swallow-wort. 



d. Inflated hollow or puffed up like a bladder, as in the ground 

 cherry. 



7. Disposition : From the disposition of the germen, 

 a perianth is said to be superior or inferior. 



a. Superior when the germen is under the lower part of the pe- 

 rianth ; hence the remains are visible on the fruit, as in roses, 

 pears, &c. 



b. Inferior when the germen is above the base of the perianth, 

 as in the poppy and water-lily. 



8. Number : From the number of perianths on each 

 flower, the perianth is said to be simple or double 



a. Simple when only one, as in the primrose and most flowers. 



b. Double when there are two or more, as in the mallow. 



9. Situation: From the situation of the perianth 

 with respect to the fructification, it is either termed the 

 perianth of the flower, the perianth of the fruit, or the 

 perianth of the fructification. 



