Heeßel, aier Jan. 17, 1868 - 3 - 



Wakt concerns that, I have raentioned earlier, that , if I had^ des- 



cribed them f irst , , I would have asked Karsten for a name.because some 



people put value on such matters, which, however, I hardly believe 



of Karsten.. If you too describeLi. paucirostata, t hat too would 



not do any damage, as for me such matters have little iraportance. 



I~ hope to get the seeds to germinate in spring, if they should 



not have suffered through pressure, drying should not have beerr 



harmfuli I let the seeds of L. gibba germinate after dry storage of 



several weeksv and it is otherwise knoten, that they can be stored 



over winter. After all I know about the nature of their habitat, I 

 of ten 



believe, that this process is/of benefit to the plants, i.e. they 

 can tolerate the drying out of their habitat without perl shing.En- 

 tirely the same you find with your american species. On the other^ 

 hand,exact Observation proves, that LI. gibba vegetates over winter, 

 as do certainly trisulca and minor .- I was not able to observe them 

 in the local area ramKKttyx.and my trials to bring them irr ( ? E.D.) 

 failed. This goes against the culture requirements of Lemnas , which 

 I know closer.,- If yours winters in brackish places through seeds,, 

 there does not follow with necessity, that there is not enough wa- 

 ter, but, perhaps, that it is not warm enough for germlnation.Thus, 



the questlon should remain open,and, at least, several possibilities 



inEurope 



are involved. The Wolf f la by analopry with W. arrhlza / could at 

 least overwinter. 



Wy special thanks about your Information about pip-ment & 

 shape of W. brasillensls . The last point I can now examine rayseif. 



¥hat you can expect in the spring in Berlin, was recently 

 coramunicated to me too. Should yourson> choose a vacation sometime 

 in the Black Forest ( Schwarzxmld) or the Swabian Jura (Schwäbische 

 Al|5) , or our Bavarian Mountains ( Algeu) , youf itinerary leads you by 



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