347 



but they are of less importance. It may, as Callicarpa, be 

 derived from Geunsia. The occurence of terminal inflorescences 

 is, for the rest, very common in the order, even within a 

 genus (e.g. Vitex, Clerodendron). The difference between 

 axillary and terminal inflorescences is a mere gradual one, 

 since the axillary cymes may be united towards the tops of the 

 branches and lose their leaves. 



In this genus too, there is the differentiation of whorled leaves 

 (T^ctona Hamiltoniana). Features which raise it, moreover, 

 above Callicarpa and Geunsia are its bifid stigma, which in C. 

 and G. is 2 — 5-lobed, and the one 4-cellcd pyrene. 



More zygomorphous are the TEYSMANNiODtNDREyE, the 

 Viticeez and the Clerodendreee of which the last-mentioned have 

 the least zygomorphous flowers and the first, which are nearly 

 related to the Vificex, differs by their capsular fruit. Of the 

 ViTiCEiE, Vitex and Gmelina axe the most primitive genera in 

 the features of the 5-merous flowers, less primitive, however, in 

 the often digitately composed leaves and the pronounced 

 zygomorphy. 



A remarkable analogon in the groups of the Viticeae and 

 the Clerodendreae is to be considered the behaviour of Vitex 

 and Gmelina on the one hand, that of Clerodendron and 

 Faradaya on the other. For we may readily assort that 

 Gmelina is to Vitex, what Faradaya is to Clerodendron, viz.: 

 a form with funnel-shaped and wide, instead of narrow and 

 small corolla- tubes. 



The subdivision of Premna in more than 2 groups seems 

 not possible, but the subdivision according to the shape of the 

 calyx seems a good one. As in Callicarpa ( C. cana) there is 

 a very polymorphous species, P. integrifolia. Of its different 

 forms of leaves and calyces we gave several drawings on plate II. 

 The only possible way in which we could separate the several 

 races seems to be that of experimental Genetics, a science which, 

 in our opinion, is to be combined with that of the systematical 

 Botany as a method of examination. ') 



The subdivision of Vitex in species with axillary and those 



M e. g. also in the matter of Callicarpa cana and C. laciniata. 



