h - Prince Salin March 2^1850 



of all other venera I have no remarks to nake; I consider then all 

 good and s erging the purpose«. 



..In the genus Echinocactus^, ho^ever,, are two Speeles, Ech„ 

 setispinus, Engelm«, and ungui spinus, which on aecount of theirr bacca ; 

 colorata, mollis could have the appearance of belonging to the ge- 

 nu sMalncocorpus_ t But the lack all the other characters, and in the 

 diagnosis of the ge^us Ec ! n.nocac tus I said on purpose w interdußr 

 glabra 1 * a^d both the above naned. species stand, by the way, quite well 



3. tlncinatl^ ** hamati. 0^ course, I could have nade the var. ^> 

 of Ech. setlsplnus s. species, and its species to a variety* it would 

 have been for rayseif more expedient; but I did. not do it, and now it 

 is too late to change it*. 



As to my adnotationes botanicae, which form the major part of 

 the work, they became too nunerous to designate them with currentt 

 numbers. . Thus I divided them by tribus, and with each I start agairr 

 with No. 1:: I believe, that in this way it will be more convenient for 

 the u.se. As I consider my labor as a continuation of the Enuuneratia 

 od Pfeiffer, I included the description of all cati, which became know 

 since 183.7' and which are present in my garderr, ,or, at least, were nre- 

 sent. , This limit I posed always for myself; because I did not want nor 

 could I write a monograph o^ the fanily; I woul^ not have been able,. 

 to classify species, which I have never seen, properly, and, irr addi- 

 tion, my collection, though not complete (t) is never-the-less nune- 

 rous enough, to keep little to be wished for. - In this respect I owe 

 very much to your klndnessi: I have used everything, which I reeeived 

 from youj even the sceletons, so that your species should bekome known 

 in E urope t . and for the ^ of 0p, cylindraceae I gave the character. which 

 you discovered, and which I consider fully lraportant,, if it proves to. 

 be general*. I will gladly send back to you the seeds, which will be - 

 come ripe for me«. 



