6 



1 dozerr sraall ones to be collecte<$; thus, it almost seens, that seeds 

 do not set each year and that seeds are able to germinate onljr in 

 specially favorable yearsi. for otherwise, one would meet plants of 

 every llfe developmert.Rere I found also Pil . Celsianus in. 2 or 3 huge 

 speciraens. This Pil. has straisrht ener-ring, flexible spin.es, and its 

 hair is Short and silk-like; generally it is very similar to P. seni - 

 lis . Kay-be your P. lateralis ? 



Pil . Doutredaini I would like to consider identical with P .leu - 

 c oc eph alias , which I found frequeutly in the Tierra caliente between 

 Tampico and Victoria ! 



Pil . polylorhus I found nunerous in the Canada de Flacolula, » where 

 it penetrates with its roots at right angle the verticallyv rising 

 rocks'; but with out signs of flowers or fruit. . 



Ger , edulis If this C.is identical with C. pruirosus will become 

 apparent during the course of this Sunnex% when the young seedlings 

 will have reached sufficient size. I did not find the C. pruirosus in 

 Mexico, but I bought fruits in the capital the size of a small hen-egff 

 and o^ dark red color. The seeds of these became C. pruinosus here 

 in Europe« The flowers of this C. are still entirely unknown; How - 

 ever the plant must develop very substantial dinensions. Every beauti- 

 ful Cereus ; f lowerinn- with a long tube,is called Pitaya in Hexico. 



Pil . froparius I did rot find flowering; only with very few 

 fruits ener-ring sideway s with ri ne seeds, which howe^er did not ger- 

 minate. 



Of the many new and nunerous specimens, which which I then 

 sent to Eurone the great majority have died Ioupt ago, What is left of 

 it today is of no inportarce: Echinoce^eus tuberosus , a few Anh. Wil - 

 llamsi i , t sone E. forinatus (? S.D.)* Also, fron the plants grown f^on 

 seeds then, almost nothing is left. I, therefor, cannot send you live 

 plants. But I possess se^era! very interesting dead plants, so-cal- 

 led soeletons. Those I would gladly, if you wish, send you for study 



