ANGIOSPERMjE, dicotyledones. 



r53 



2-membered whorls; in Daphne the perianths has two 2-membered whorls, and the 

 androecium two 4-membered whorls (see fig. 427 »); in Laurus the perianth consists of 

 two and the androecium of four 3-membered whorls; in the genus Gnidiuvi there are 

 two kinds of floral-leaves, the lower ones sepaloid the upper petaloid in colour, and 

 these are spoken of as calyx and corolla. The same arrangement is found in several 

 Lauracese. The anthers of Elseagnacese and Thymelacese dehisce by longitudinal 

 slits, those of Lauracese by valves (see fig. 427 ^). In the Elasagnaceffi the cup- 

 shaped receptacle persists as an envelope around the fruit, and becoming succulent 



Fig. 427.— Daphnales. 



I Camphora o^cinamm (Family Lauracese), flowering branch. 2 Longitudinal section througli the flower of Cinnamomum 

 Zeylanicum (Family Lauracese). s Flower of Daphne Mezereum, (Family Thymelacese) cut open and rolled back 

 1 reduced : 2 and s magnified. (Partly after Baillon.) 



outside a.nd strong within, the result is a false drupe. In some of the Lauracese 

 also, as, for instance, in Nectandra, the receptacle continues to grow with the fruit, 

 and forms a cup-shaped envelope resembling the so-called cupule in the fruit of the 

 Oak. In Thymelacese and Lauracese the ovule is pendulous (see fig. 427 ^), in 

 Elseagnacese it is erect. The Daphnales are scattered over all parts of the earth. 

 The Thymelacese are best represented in countries where the climate is temperate; 

 the Cape and Australia are particularly rich in species of that family. Daphne 

 striata attains its highest elevation in the Central Alps at 2500 metres. There is a 

 striking concentration of several species of the genus Daphne on a strictly limited 

 area in the mountainous parts of Southern Europe. One of these species is the 

 plant known in Carniola under the name of the Konigsblume (Daphne Blagayana). 



VOL. IL 



98 



