Ii 



that the same cbaracter in. the Conif erae , t^ourh still relied on as 

 one of the f un^anental ones is amazing that faraily is not always nor 

 absolutely reliable,must console us a little» We have here two close- 

 ly allied species of Lepidiura , one with accuiribent , the other with in- 

 cumbent öotyledons ! 



The great number of Genera constructed by nodern. botanists, and 

 still multiplied. by sone charlatans, must be fromme 6 lipon, as they c an- 

 no t stand before scientific enquiry. 



I would beg you to make the most minute and extensive neraoran- 

 da fron the Ii Ving f lowers and fruits; pay attention to the time of 

 opening of the f lowers, matutinal, ve spertial • diurnal or nocturnal.- 

 or which flower by day or night; sone open earlier, than later,and re- 

 main open longer or a shorter tine» Color of flower and f^a^rance» 

 season of fl owering, Position of flower on. the plant, vertical (so 

 called) or lateral; if the latter, wether high or low, i.e. fron la - 

 ter or older parts of the plant. Proportion of the parts of the flo- 

 wer. Condition of the lowest part of the tube - below the Insertion 

 of the stamens. Insertion of stamens lower or higher up and in many 

 Gerii the Separation, of a "corona M of stamens fron the balance. 



The fruit is most inportant and ought to be carefully descri- 

 bed - dry or pulpy - external covering - shape and size - klnd of 

 irregulär Schispence if any - time of ripening. Seeds ca^ be preser« 

 ved and described a.^terwards at leisnre. 



Among the best Inown. Cactl seem to be the Peiresc iae ( Peres - 

 ki ae -n modern Ii terature ,L. . D. ) , several species of which ^ron Mexico 

 are only known and described af ter Morien and Sesse's drawings, 

 which ' r ;;re n^de use of by De Cardelle. Careful exar.iration and study 

 of all o f thera seems of the greatest interest, and the collection of 

 fruit and seed is indespensabl e . Collect specimens of their wood. 



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