=Chloranthy.=--The term phyllomorphy is applied to the individual parts of the flower which assume the form and appearance of leaves. By chloranthy it is to be understood that all, or the great majority of the organs of the flower assume these conditions.[280] In chloranthy, as here defined, there is no unusual number of buds, as there is in prolification, but the appearance of the flower-bud is so changed as to make it resemble more closely a leaf-bud than a flower-bud. There is not necessarily any increase in the number, or any alteration in the position of the buds, but the form and appearance of the latter differ from what is usual. Chloranthy, then, is a more complete form of frondescence. Owing to the vagueness with which the word has been applied by various authors, it becomes very difficult to ascertain whether the recorded instances of chloranthy were really illustrations of what is here meant by that term, or whether they were cases of mere virescence (green colour, without other perceptible change), or of prolification (formation of adventitious buds). It is, therefore, quite possible that some of the instances to be now mentioned were not strictly cases of chloranthy. [Illustration: FIG. 151.--_a._ Open leafy carpel of "green rose," with two deformed ovules. _b._ Ovule separate. _c._ Primine removed. _d._ Secondine and nucleus, with the bulbous end that projects through the micropyle.] Seringe[281] has described a malformation in _Diplotaxis tenuifolia_ in which all the floral organs were replaced by sixteen distinct leaflets which had preserved their proper relative position. The _Cruciferae_, of which family the last-named plant is a member, are particularly liable to this malformation, as also are the _Rosaceae_, as will be seen from the following illustrations. Roses indeed often exhibit alterations of this kind as the commencement of prolification. There is also in cultivation a rose[282] called the green rose, "Rose bengale a fleurs vertes," in which all the parts of the flower are represented by leaves. One of the most remarkable features in this plant is, that the carpels have often two ovules on their margins. Now, Payer, in his "Organogenie," has shown that at a certain period of the development of the ordinary rose flower the ovary contains two collateral ovules, of which one becomes in process of time suppressed.[283] _Geum coccineum_ has been found by Wigand with its flowers in this condition.[284] Lindley[285] figures a very interesting illustration in _Potentilla nepalensis_, in which some of the flowers have their component parts leafy, in others the receptacle lengthens, till in extreme cases the whole of the floral apparatus is represented by a branch bearing a rosette of leaves.