RUB us Linn. 



Sec. I. EuBi Frutescentes. 



Caiiles suffruticosi. Folia subquinata. Stipulae 

 lineares ad basin petiolorum affixge. Fiores subpanicu- 

 lati. Acini in baccam polyspermam compositam con- 

 gesti. Receptaculum conicum. 



Subsection I. Kubi Id^ei. 



Caules steriles suberecti, biennes. Receptaculum a 

 fructu discretum. Folia ssepissime pinnata. 



The fruit being so constructed that the receptacle is not 

 deciduous with the acini separates the Idcei from the Fruti- 

 cosi in a marked manner. These may be considered as the only 

 truly erect brambles included in our flora ; for their stems 

 have never been even suspected of arching so as to reach the 

 ground at the end, and rooting there. But although these 

 completely erect stems of B. Idceus and its allies are very 

 characteristic of the plants contained in this group, never- 

 theless, there are some other species which have suberect 

 stems ; especially those of the group denominated Suberecti. 

 But the peculiar characteristic of the Idcei consists in their 

 fruits separating from the receptacle, whereas in all the 

 Fruticosi the receptacle falls with the acini adhering to it. 



4—3 



