Hegelmaier^ Tübingen, Feb. 21 1871 



Fee. 



Ans, oct. 25 



Most Honored PriendcJ 



Yöur so often proven willingnes, perraits me today to dare 

 to make a requesttfor materiall f or a little study, „which does in- 

 terest me muchl to make in the fufcure. I would like to make sorae 

 developmental'i studies of Azollä% first the developmental Pro- 

 cessen in the Vertex of the stenrr (with the development of the 

 stränge leaves, the branches, etc) } Por Salvini a we have in this 

 retard a nice essay from Pringsheimrgbut of Azolla one knows, as 

 far as I T know, nothing. 



Por this I would need to get Azolla in alcoholl Don f t you 

 have an aquaintance in an area, in which A. caroliniana exists ? 

 Sterile plants would work'i I do not know, if A.produces spore cap- 

 sules frequently in North-america; Should there be raaterial, which 

 would permit Information about its development; this would be the ' 

 better*, but, as said, that is not my most urgent wish.. Considering> ' : \ 

 the minuteness of the plant a small! bottle would suffice. I am not 

 in a hurry and would be entirely content to get to the matter du- 

 ring the winter 1871/72 Or 1872/73» Düring summer there is always 

 enough alive material to be examined'. Azolla is stated by A.Grey 

 for (the State) New York, but if it exists in New York itself, I do 

 not know. Otherwise I oould have turned to a Gentleman there under 

 the circumstances. I reeeived this winter from such a man freshly 

 obtained^ material of Lemna Torreyi , unpressed in conserved condi- 

 tiorn it had grown under watei% , and, in consequence of this II find very 

 many- sprouts of winter associated- strengt*!, hollow holes as the Hiber— 

 namela (?? E.D. ) of Spirodela, and as it occurs similarly with Lemna- 

 gibba, overwintering sprouts, . with wich' I have since becorae aquainteeft. 

 What the meaning of this matter for LI Torreyi realy is, is not clear> 

 to me ("The t-anslation of the last few linesr m ay be correct or not,, 

 the text is harly legrible. E.DO) 



