7 



some interesting observations. I saw the Pilocereus flower at night like the virins that we 

 observed in Viena. The species are: 



Pilocereus Houlletianus Lemaire and the Cereus pentacophagus Labouret. You know 

 the flowers of the Houlletianus from the drawings of Lemaire. The most characteristic of 

 the Pilocereus type . It gives off an odour of garlic which is extremely penetrating and 

 repulsive. Its tube is entirely bare and even if I tried my best I could not find it to be 

 squamous. 



At Pfersdorff s I also made an Observation that I will teil you about little by little All mv 

 Anhalorium have flowered. ' 



I have visited Mr. Guedeney at Vesinets. He did the foolishness of cutting the 

 Leuchtenbergia to multiply them, therefore we will not see them flower this year At the 



fehoff n ^ CaCn 1 ^ ^ bUdS ^ direCt ° r ° f Ae garden t0ld me that these 



Today I finish the letter which I frequently stopped and started writing in the middle of the 

 war with PrussiaThe newspapers will inform you of this better than what I can teil you 

 However it is very possible that I will need to go with the army to the Rhine I do not 

 enjoy doing emergency surgery, I would rather be thinking about Cacti. I will be expecting 

 news from you and I will be sure to keep you informed. Any letter addressed to the 

 Hospital des Invalids will always reach me. 



In the meantime please give Mrs. Engelmann my best greetings and for you my most 

 honored wishes.. 



Albert Weber 



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Missouri 

 Botanical 

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