Hegelmaier 



Kec. April 13,1868 



Tubingen, March 20,1868 



Möst Esteemed Doctor t 



Though I let pass the deadline through prolonged postponement' >t 



which you had set in your last letter of Feb. 2, as advisable for 



a letter, however may-be the present lines will still reachyou, 



/ 



which I believe the nore, as it was to be concluded frora your 

 last but one letter, that you have postponed the time of your de- 

 parture already once» 



I forgot to write earlier, that I would be able with pleasure,> 

 to send to any place in Germany sample s in alcohol of Lemna gibba 

 and trisulca f loresc. ,L. minor c.fl. & fruta,also Wolf fia arrhiza , 

 if this would be of Service to you, Trisulca in fruit I do not have 

 myself; In 1866 I achieved m®&tiL&k fruits after getting them to 

 flower in room culture, which I used in part for germination and in 

 part for d&section, i C an thus say only, that I can not dfeclare any 

 difference in seeds from the otherwise so dissimilar L. minor , 



I am much more obligefr for the last shipment , though the items 

 were sterile, than you seem to think, ±m which xkx ^ave me some In- 

 formation. Thus ,one of the numbers \ o& of LU polyrrhlza seems 



to prove,that this plant over- winters there, in a warmer climate,, 

 your 



different from ours. Do fehs Wolffias overwinter on the water sur- 



face in your room ? In Europe the II. arrhiza winters by a winter- 



sprout, which sinks to the ground, and does so for several years 



also in a daily heated room; most likely this will not be the sarae 



£«e Lot, 



r each latitude. - Your perilis ( or perilia ? E.D. ) prospers,, 

 the Californans seem all to belong to L. minor , equaliy so II. 

 Torreyi from New Mexico (Gallejo Spring) . I am at present invol- 

 ved, if L T . Torreyl should retain its name or anafc if an older one 

 does exist ri^htfullyya questiorr, which came to my attention only 

 this Winter through 1 viewi ng of your material, and which causes me 



