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MISSOURI BOTANICAL GARDEN 



I 



( (7. acidus K. Sch. and C. castaneus K. Sch.) which have 

 not such setulose hairs. But if we take as principal char- 

 acters the short flower with small sepals and petals and the 

 deeply divided style, the genus of Philippi can be kept up 

 for a certain number of Andean species. 



But I am quite aware that in this form the subgenus 

 Eulychnia is more artificial than natural* 

 C. macrostibas A. Berg, differs greatly from the rest, 



For instance, 



especially by its enlarged and prolonged flowering areoles, 



f 



11 Kurztriebe." But the material 



at hand is so scanty that I must refrain from any further 



statement. 



I shall be very grateful if some botanist of 



South America will supply me with further information 

 concerning any of these plants. 



Cerens macrostibas A. Berg, was originally described by 

 Schumann as a Pilocereus, and as such it is another 



heterogeneous form of this conglomerate genus. 



The 



form 



C. CeU 



sianns A. Berg., but they differ in every possible way. 

 Cereus aureus K. Sch. was originally described by 



Pfeiffer as an Ecliinocactus. Indeed the short and cam- 

 panulate flowers of Eulychnia are almost those of Echi no- 

 cactus, and there remain only very faint distinctions 

 between this subgenus of Cereus and Ecliinocactus. Gen- 



nia the petals are reddish or white, but in 



Euhjch 



probable 



this may be better replaced in Ecliinocactus. 



Cerus bi'eviJlorusK. Sch. has recently been collected by 

 Dr. Otto Kuntze. His splendidly prepared specimens are 

 now in the Royal Herbarium at Berlin, whence they were 



kindly lent me. 



from 





I am indebted to Mr. Stolp, of Santiago, Chile, for a photo- 

 graph of the same plant. 



The following species may be considered as belonging to 

 Euh/chnia: — 





