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YO rn (A L u \ \ » 
t. Louis, June 10 
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Dear Braun, (see note 1”) 
A week ago (note 2) I wrote you much interesting about 
Isoetes, specially melanopoda and send drawings,dried plantlets and 
a little tinbox with live roots. I wonder, if they have rotted al- 
ready -— they are on the ocean only since yesterday - if anything rec- 
oenilzeahle will remain when you get them into your hands, if the 
rot will not spoil the other items,letter and drawines - you will 
know when these lines reach you. Had I not been in such a hurry, I 
could have told you that all tubers act like this and that Hall was 
rieht, that the two year old tuber pushes off in two halves,and 
that at a time when the spores have been formed but are not yet ripe. 
The plants were collected on June 1. You find enclosed specimens of 
cross sections and drawines of fresh crosscuts., 
I remember now, that in the Systema of last year I found those 
cCast-off halves as hard,crusty hemispheres near the plants,which I 
due to partial dying off 
had cultivated 10 months, and considered this casting offlas recently 
with young plants, the consequence of drousht or cold’. It is now how 
ever clear that it is a regular process. 
I will see to it, that you receive live tubers in the Fall; 
per pört that will wo. 
Now still more ! The leaves are rerularly 3-edged as the cross- 
cuts show you with with drawn-out tube-runs. Leaf position,it seens, 
5/13 ; on one I cut off the leaves just above the tuber and obtained 
the following schenes. 
An extremly hard ligule,mostliy two-pronged above the sporan- 
elum, not or hardly visible on dried specimens; below it a thicker, 
more fleshy, shorter ligule ,„ blunted or irresular;s on both sides 
openineges lead downward toward the spyoraneriums below these operines 
I detect more or less clearly 2 inclined lasts or pencil shapes 
which stand toward the opening. If the ends of these stand free, 
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