George Engelmann to Braun, Alexander Carl Heinrich 
Folder 2 
March 18, 1866 
This letter is very fragmentary, having been written at different times and with 
different interruptions, thus, please forgive me. 
Isoetes melanopoda grows on wetlands which are flooded in the spring; and I 
believe that if it is half under water until fall then it becomes I. Engelmanni; should ıf 
grow on dry land after May then it becomes I. Melanopoda,; but the half developed 
spores remain. Is anything like it known about other Isoetes? Not correct( source 
of remark unknown .Transl.) 
If you have anything special for me, put it aside, and send it to Mettenius in 
Leipzig when suitable, because he can let me have it for free through Consul Flügel 
and the Smithsonian. 
Königsberg appears from the medical journals to be a nest of diphtheria and 
| wish that Caspary and his children ( he has 2?) were away from there; hopefully he 
will come to Bonn. 
Please give our best to your family and write soon again; it does not have to 
be so detailed. Your letters via Bremen and Hamburg are much cheaper and get 
here as fast as those via Liverpool. 
Please send the two enclosures to your sons-in-law. 
Yours 
G. Engelmann 
a BE N RE ER ED EN ZU 
0 1 23.45 6 7 8 9 10 MISSOURI 
. | BOTANICAL 
cm | copyright reserved GARDEN 
