DOUBLE FLOWERS. 



4 5 



duces leaves ; this rarely happens ; but instances of it have been 

 found in Rosa, Anemone, and others. The other kinds of pro- 

 lification are frequent enough. 



4. Mutilate flowers are the reverse of luxuriant. Linnceus 

 confines the term to those flowers only that want the corollae, 

 though they ought to be furnished with it ; which often happens 

 in Ipomuea, Campanula, Ruellia, Viola, Tussilago, and Cucu- 

 balus. The cause of this defect he ascribes chiefly to the want 

 of sufficient heat. 



The luxuriancy of the calyx, mentioned in the beginning of 

 this chapter, is very unfrequent, but not without instances ; in 

 Dianthus Caryophyllus there is a variety, in which the squama:, 

 scales, of the calyx, are so multiplied as to constitute a perfect 

 spike, in a manner most singular. The Gramina, grasses, of the 

 Alps, become full by their glumce, husks, shooting out into 

 leaves, as in a species of the Festuca ; and in Salix rosea, 

 and Plantage rosea, the squamae of the amentum of the former, 

 and the bracteae* of the spike in the latter, will shoot into leaves 

 also. 



Lmnctus has enumerated some tribes of plants, which are not. 

 found subject to luxuriancy ; but as the heads, under which he 

 has ranged them, are taken from the systems of preceding 

 writers, and not from the sexual, it would perplex the reader* to 

 explain them ; and we shall therefore omit them. The curious 

 may have recourse to them in the Philosophia Botanica, p. 8h 



called folia), but only to those of trees. Linn&us has availed himself of this old 

 distinction to make it a botanical term ; which he applies to express the circum- 

 stances of palms and Jilices, ferns; in the former of which the branches, and in the 

 latter even the stem itself is an actual leaf : and here again he applies it to the leafy 

 prolification in question, calling it froridose, rather than foliaceous f for the like 

 reason. Author. 

 * Floral leaves. 



