
          Recd [Received] May 21 


 Cambridge Mass. [Massachusetts]


 May 19th 1869 


 My Dear Dr. Torrey


 I am again grinding 
 at the mill of Califonia's
 Botany. Am in doubt relative 
 to Sedum edule Nutt. [Nuttall] [in] T. & G. [Torrey & Gray]
 Fl. I, 560; Bot. Mex. Bound. [Botany of the Mexican Boundary], p. 68.  


 There is no specimen in Dr 
 Grays Herbarium except an 
 imperfect one, supposed to 
 be that [added: species] in my lot, collected by 
 Dr. Cooper at San Diego. But 
 in these the stamens are inserted 
 on the base of the Corolla, as in 
 Echeveria (Cotyledon of [Linne?] &
 Benth & Hook [Bentham & Hooker] Gen. [Genera] Plantarum) and 
 furthermore, the petals are 
 slightly united at the base. 


 These would invite the
        