84 





MISSOURI BOTANICAL GARDEN 



ferent from both, but must be placed with Ephiphyllum 

 and HJiipsalis among the Inarmatae of K. Schumann. I 

 propose for it the name 



Epipliyllaiithus obtnsangnlns (G. A. Lindbg.) A. Berg. —Brazil. 



Imperfect as this paper may be, I shall be glad if it 

 draws the attention of other botanists to these plants. 

 They are full of interest in many a point and there re- 

 mains much to be done. The facts as here stated all need 

 careful verification. I wish them to be considered as an 

 attempt only, for the material from which these state- 

 ments have been derived has not been at all sufficient. 

 Botanists who have the opportunity will find ample field 

 for observation. The cacti of the United States and 

 Mexico are pretty well known, but those of Central and 

 South America and of the islands quite insufficiently. 

 Furthermore, in the study of these plants, there are obser- 

 vations still to be made upon their pollination, on the 

 opening of the fruits and dissemination, on the develop- 

 ment from the seed to the full-grown plant, and on the 

 geographical distribution and economic value of the 

 different species, etc. 



Cacti, as well as other succulent plants, can never be 

 understood unless they can be studied from a large col- 

 lection in a subtropical garden, where they are grown in 



quantities in the 



d where every possibility is 



offered for their natural development. But at present 

 there exists no such opportunity. 

 My grateful acknowledgments and thanks are extended 



iry, who has always taken great 



to 



Hanb 



interest in my studies of succulents and has given me every 

 possible help. I further have to thank Herrn Geheimrat 

 Engler for valuable herbarium specimens lent me from the 

 Eoyal Botanical Museum in Berlin ; the Herbier Boissier ; 

 and, last but not least, Dr. William Trelease for so kindly 

 providing for the publication of this paper. 







