Boissier, E. Rec May 1 Ans May 17 
Geneva April 2, 1861 
My dear Mr. Engelmann, 
[ am late in responding to your last letter. Last January I was so busy just as all winter, that my 
correspondence has suffered. Finally, here 1s my article on the Euphorbia which will be related 
only to the Euphorbia. There are 680 Euphorbia ( perhaps a few species more that have not been 
researched). The Pedilanthus(?); 2 Synadissima (?) New species remarkable because all the 
olands are buried in a capsule in the involutionary lobes and finally the E. Anthostema(?). These 
are the descriptions that I have made and I anxiously await your critique, as I admit that my 
work is not always perfect. 
The fragments that you sent me in your last letter, unfortunately arrived quite bruised, which 1s 
usually the case. I rely on your good description of the E. oymnoclada that I placed with the E. 
peganoides. But you did not remember that 1 already described a E. gymnoclada Ariz. 
Engelmanni. Do you approve of this name? The plant from Fort Texas seems to be the E. 
albamarginata and E. Hartwegi that can be differentiated by the characteristics that I mentioned. 
Are there perhaps several forms of the E. albamarginata? In any case I took a sample of the E. 
polycarpa to the herbarium and I saw another one that was longer and that was very similar to 
the samples of Parry from California. The leaves are much bigger that the other plants of the 
same species. 
[ will send the peaces of our Euphorbia to Prof. Mettenius, and I will ask him to forgive me for 
the delay. 
You knew that the poor Mr. Klotsch has been sick for a long time, already several months. It 1s 
Mr Hanstein who now has the herbarium in Berlin. 
Mr. de Candolle is not finding too many difficulties with his work, as he has not found too many 
new subjects. 
In Europe we are always uncertain about what may happen in the summer. Some believe that 
there will be peace but others think that war is inevitable. If it would explode it will be terrible. 
(there are five lines that I cannot understand). 
I believe I will be able to send you some samples of the Euphorbia but 1t will not be this vear. 1 
have not finished the publications as I am waiting for the drawings and for the engravings from 
the lithographer. 
I thank you again a thousand times for your extreme kindness in furnishing me with notes and 
material. for which you have gone through many difficulties. 
Please send me news from yourself and take my affectionate greetings. 
E. Boissier 
PD I had already closed this letter when I received in Leipzig your cheery note. I will think of 
you when I see the Cuscuta and the Alimaciae.. Please tell me how to cultivate the ? Levisie and 
how they live. 
translation Manfred Thurmann 
0 1 2 3 4 5 6 7 8 9 10 MissOUR: 
BOTANICAL 
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