KOKTH BRAZILIAN EUPHOHBIACE^E. 363 



from some seeds which Milne had accidentally scattered there while 

 serving them out to the settlers three months before. 



On January 1st we reached Sydney, where we have been ever since. 

 I have not, nor has any one present, the slightest idea when we sail, 

 or where we at go. 



[Among the more remarkable and interesting of the plants that have 

 been already received from the islands thus visited, are a new genus of 

 shrub, apparently of the Order Billeniacece (Isle of Pines, n. S49, Mr. 

 Macgillivroy, — n. 141, Mr. Milne) ; and, from Aneiteum, the curious 

 Geissou racemosa of Labillardiere, Sertum Austro-Caledonicum, p. 50. 

 t. 50 ; of which the G. ternata of A. Gray, in the Botany of the United 



States Exploring Expedition, from the Fejee Islands, is probably only a 



variety.] 



w 



On the North Brazilian EuPHORBiACEk in the coUectiom of 



Mr. Spruce ; 6y George Bentham, Esa, 



{Continued from p, 333.) 



Mabea. 



Our herbaria now contain nine or perhaps ten species of this genus, 

 of which three only are published. All yield a copious milky juice, 

 which, however, we do not hear of being applied to any specific purpose. 

 The bark of one of them is, according to Martins, considered in the 

 Diamond district as a febrifuge ; and the young shoots of several species, 

 under the name of Tacuari, are used for tobacco-pipes in Guiana and 

 Brazil. Partly on this account, partly from the general resemblance in 

 habit of the species to each other, there is some confusion in the ap- 

 plication of the names of the older ones. Aublet's may indeed now be 

 identified from his descriptions, but Martlus' M.Jisluliftra is only known 

 by so short a diagnosis, that I cannot even now feel any certainty as 

 to the correctness of my determination, although I am convinced I was 

 wrong as to the species I gave that name to in my first distribution 



of Spruce's plants. 



The several species may from their inflorescence be divided into 



groups as follows : 



Ser. I. Eacemos^. — i?acm/ solitarii,terrainales,thyrsoidei. Brae- 



tece marium glandulis 2 magnis siccitate nigris nitidis stipatee. 



