Ree. Nov. 1 Hegelmaier Tübingen Oct. 3»iH67 



Ans. Dec.20 



Hbnored Sir Doctor t 



Yöu get aqauinted in the original of the enclosed iittle 

 picture /a very poor letter writer^, because I need to answer youi f or 

 not less than 3 letters, which carae to me during the last one half 

 year~, the last only very recently, and also for the interesting en- 

 do sures. . The reason is, that I get to make systematic researchr on- 

 lyy» when some materisl has come togethei% The other parts of the 

 labour are very time consuming. Ii would however not write to you f , 

 without giving you my opinions based on carefuli examination, taking 

 several days labor f about the sent items. 



The first of your 3 letters' (dated March 11 or the current 

 year) »y^ich came via Frankfurt, , has actually been disposed of by 

 one which crossed it on tue way f which you reeeived as I pereei^e 

 from a later one.. It deals with Lemna jg<MfjouStt(q^ f wnich Austin as 

 well as you and E distinguish froer wywqj l on aecount of the 

 Ovulum: atroJ^ÖUMrt/. .. . , as much as it is also different fromrL. 

 Tbrreyi ; further of Juncus 2~o&- Fleers, which, as I wrote 



already, I cannotjobtain here.. 



Your 2nd letter is of June 30 and contained a seedling of 

 J/. pg^pusftlo^ frora your area beside grown speeimens of 



these. Apparently tne seeds ripened in late fall 1 gerninate not un- 

 tilitne following year. Our native species can also be kept until 

 Spring, and tnen only be brought to gerninate; on the other hanctl 

 do kn.ow from own observations, tnat L. trisulca Gibo and minor can 

 germinate in tue sane summer, in wnich tue seeds ripened, and that 

 is for our most common species the norm. It was of r^al interest to 

 me, to be able to determine, that f tnat j7&rpUS\^Q corresponds in 

 certain v peciAliarities of tne germina^ion process with the europaean. 

 The Pedrogonia (?? E.D. ) and Spirogyra fruit attach themselves to 



