THYMEL^AGE^. 



109 



Lachncea {Cryptadenia) 

 grandiflora. 



Fig. 77. Perianth and 

 androecium. 



Dais cotinifolia. 



which alternate with the stamens are inserted lower down on the 



tube of the corolla (fig. 77) ; a character which has given a name 



[Cryptadenia) to one section of the genus. Lachncea Gon^i^i^ of cricoid 



ramose shrubs, with alternate or opposite 



leaves, and flowers terminal or solitary or 



collected in a variable number at the sum- 

 mit of the branches, in heads bare or sur- 

 rounded by an involucre. 



In the following types, while all 



the characters remain the same as 



the preceding, the scales of the 



throat of the perianth disappear. This 



is observed not only in Daphne^ but in 



the numerous genera which, with it, here constitute a second 



subseries {Eudaphnew), The most complete are those which, as 



Dais (fig. 78), have regular hermaphrodite pentamerous flowers, 



with two series of five stamens, of which 



five, longer and higher placed, are op- 



positipetalous, and a gynsecium sur- 

 rounded by a hypogynous disk. Dais^ 



shrubs of Madagascar and the Cape, has, 



besides, the foliage and inflorescence 



of Gnidia, to which it is often united, 



being distinguished only by the absence 



of scales from the throat. Lasiadenia^ a 



shrub from Guyana and Yenezuela, has 



nearly the same flowers ; but the terminal 



and few-flowered capitules are destitute 



of an involucre, and the flve glands which 



accompany the base of the ovary are 



short and covered with long hairs. It is 



scarcely possible to separate Hargasseria^ 



shrubs of Cuba, except that the stamens are exserted instead of being 

 enclosed, and the flowers are polygamous and collected in a capitule 

 (without involucre) the receptacle of which is covered with abun- 

 dant hairs (like that of Lasiosiphon). In Goodallia^ a shrub of 

 Guyana, which also has alternate leaves and flowers in terminal 

 and capituliform spikes, the flowers are dioecious, pentamerous ; and 

 the hairy glands of the disk, ten in number, are not hypogynous, 

 but inserted on the tube of the perianth, near the base ; the form 



Fig. 78. Inflorescence. 



