
          Boston June 10, 1823

 My dear sir

 I got your letter the day after
 I had sent you a dispatch by Dr. Rogers.
 I included no grasses, as from his account
 I suppose they would be too late. I will
 however send you a quantity in the coming of
 2 or 3 days after this.

 I enclose the White Hill scirpus which
 I called obtusus. Having compared it lately with
 European species, I think it is a variety of 
 S. cospitorus [Scirpus cespitosus] (new in the Am [American] flora). If it differs it
 is in the greater [callosity?] of the ends of the glumes
 a character which I do not find in any European
 botanist, not yet in Sowerby's fig [figure] although I
 do find it in a Swiss species. I propose to 
 call it Scirpus cespitosus var. callorus, unless you
 have a good European species to settle differently.

 Sc bracteatus [Scirpus bracteatus] was an unripe sp [specimen] of which I 
 am so doubtful that I shall know it & advise
 you to do the same.

 Let me know at what dates your
 numbers will appear, also how for each will 
        