
          Recd. [Received] May 23 


 Saturday Evening [May 20. 1843]


 Dear Doctor 


 Your letter of the 17th places me two in 
 your debt, and as I [added: have] many little matters to write abouts
 I commence this evening, tho fatigued. 


 Your dissections of Obolaria confirms what I told 
 you a year ago, that it belongs to Orobanchaceae,
 and its placentation must must be studied in connexion with 
 that of some of the so-called 4-placentiferous [added: [4 parietal placentae]] ovaries
 of that family. I am not prepared to answer your 
 queries on this point now. What is the situation of 
 the points a a, in your transverse section as 
 respects the lamellae of the style. Brown completely 
 sets aside Lindlay's speculations upon their relative 
 position in Orobranche, and makes nothing of situation 
 of the carpels as respects the axis. Study [crossed out: Obole]
 Obelaria in connexion with the placentation of Orobranche
 Uniflora, which you will find very similar, except that 
 the ovules of Obolaria line the whole surface, you say.


 But what I wish now to say is to beg you to 
 make full drawings not only of the ovary, but of all 
 the plant, securing color as well (and put specimens 
 in spirits.) For I think I shall have a plan 
 matured for publishing a pugillus of 20 plates this
 coming winter, one or more of which you can fill up, if 
 you choose to prepare the matter. Obolaria should 
 find a place among them. If you could send 
 me some fresh plants in a close tin box, I could get 
 a good drawing made here: for I have a promising pupil 
 in training for this purpose! Dont send it to Bentham, 
 for it has nothing to do with Scrophulariaceae.


 I hope to be with you on or about the 1st of
 July, Perhaps you had best retain the Scrophulariaceae
 for Barth, till then. But if sent B. [Barth] prefers you 
        