But, as mentioned, the groove is hardly visible -— some indication 
on the lower,horicontal cerosscut. It is obvious that the old tu - 
ber does not die off; it's substance is fresh and white, only the 
surface and the roots are black and deteriorating. The crescent 
shape of the crosscut is distinkt on all specimens. I shall con - 
tinue to observe how my plants will develop during the Sumner, 
and if they will become black uniformly in the Fall and get the 
definitive groove, and if they will become fertile already du- 
ring this year. The leaves are all, as it seems, positioned in 2/5 
and the first leaves arrive£ in the direction of the long diane- 
ter, 
It is very dublious to me if Hall was correct with his obser- 
vations -— by observing from the outside it seemei Wer also in 
my plants ,„ that the black side-parts had died and had been pushed 
off on both sides. Only the crosscut shows, that they continue to 
live, thoush of course they do not produce any roots any more 
nor leaves, both functions arise from the new part in the very 
middle. 
Tell me, what other observations of my plants I could make; 
also, if I can send you in Fall perhaps living specimens of ripa- 
ria and melanopoda. 
Of the latter I wrote you; I grew them last year,as I wrote 
you, but lost them during the winter. I hope, that Hall will will 
send me young living ones in quantity; that is better, than to 
leave matters to his observations,. 
Now I shall go over your letter and answer what I can. 
Lakerpe was most valuable to me ; he is by far more thoroush 
than Meyer and I believe to recornrize our old Gay's inspiratiomin 
this; I have made mention of this in a note. 
Nb. The first sheets of my work on Juncus you find between the 
EEE 
Ö 12 3. 4 6 7 86 9 10 MISSOURI 
i BOTANICAL 
cm copyright reserved GARDEN 
