Berlin May 19.187^ 



Most Honored Sir Professor ! 



When I found many years a^o in Texas the small 1 Cereua tu - 

 berosum , I believed having ma.de a renark,that the 1 relatively large 

 flowers, which were all terminal, stood connected in direct elonga - 

 tion of the axis of the branches. - Dr. Engelnann, to whom I comnu- 

 nicated this stränge circumstance later, had the opinion, that this 

 was impossible due to physiological reasons, and had to be probably 

 a^ error. He expressed hinseif similarly in the description of this 

 interesting plant (Caotaoeae of the Boundary, page 39). 



As this small Cereus is somewhat weak with us in Europe, and 

 rarely flowers, I could not up to now get to a decision, how the case 

 is in actuality (verbatim: in thruth.E.D. ) . Now, however, an old 

 specimen is about to bloom with 10 flowers, which all are terminal 1 ,, 

 and of which 3 form the immediate elonga tion. of the branches. 



Should , no st honored professor, this case be of sufficientt in- 

 terest, I would ask you most humbly, to honor me with your Visit 

 during the next 8 days, as during that tine the flowers will open. 

 With most «wsfc special esteem, Your nost devoted 



H. Poselger Dr. ph. 

 Schönhauser Allee 163 



(translated fron German script by Ed.car Denison, April 19R8 ) 



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