RUBTACE^. 



Gcertnera vaginata. 



Uragoga, particularly with Fsychotria and Chasalia, are Gcertnem and 

 Pagamea, usually placed in another family (Loganiacece). They in 

 reality differ only in the 

 form of the receptacle 

 and the little adherence 

 to it of the ovary which 

 is not quite free, as is 

 often said, but adherent 

 only in its lower portion, 

 corresponding to a part 

 of the ovarian cells. The 

 latter are two in number 

 and enclose a single ovule 

 of Uragoga. Gcertnera (fig/ 

 267, 268) consists of 

 shrubs of Africa and 

 tropical Asia, abundant 

 especially in the eastern 

 African islands. The fruit 

 free and drupaceous, 



Fig. 267. Floriferous branch. 



Gcertnera vaginata. 



IS 



and the albumen, very 

 hard, is abundant and 

 homogeneous. Pagamea {^g. 269-274), scarcely distinct generically 

 from Gcertnera, inhabits eastern tropical America. The inflorescence is 

 axillary; the ovary is bilocular, 

 more rarely 3-5-celled, and the al- 

 bumen is deeply ruminate, like that 

 of the section Grumilea of Uragoga. 

 Two genera, somewhat abnormal, 

 have been ranged in this group 

 near Uragoga and Lasianthus. One 

 is Hymenocnemis, a shrub of Mada- 

 gascar, with small leaves whose 

 stipules are connate in a sort of 

 spathe which surrounds the summit 



of the branch and allows it to perforate its extremity so as to form a 

 tubular sheath. Its flowers are nearly those of a Uragoga, rather 

 large, axillary and solitary. The other is Fergusonia, an Indian 

 herb whose foHage is that of a Spermacoce and its axillary flowers 



VOL. VII. u 



Fig. 268. Diagram. 



