THE GIN^US NUTTALLIA. 209 



more distant from Sida than from Malvasirum. As a genus I 



designate this group Disella. 



D. HEDEEACEA. Dougl. in Hook. Fl., under Malva. 



D. LEPiDOTA. Gray, " " 



D. SAGITTIFOLIA. Gray, " Sida. 



D. C0KEIFOLIA. Gray, " " 



The herbaria show a number of undescribed species of this 



genus. 



The Genus Nuttallia. 



When in the year 1891 I sought to invest a favorite drupa- 

 ceous genus, then called Nuttallia, with a name that should not 

 be revertible, proffering Osmaronia as new, and therefore securely 

 tenable, I was careful to point out that there had been already 

 five different applications of Nuttallia to as many plant genera, 

 and also bold enough to prophesy that the Loasaceous type to 

 which it was first applied by Rafinesque in 1818 would some 

 day be restored to proper rank as a genus and would claim the 

 name. This piece of bibiliographic information, it may be 

 assumed, was never read, or if read forgotten by those who as 

 if unwittingly have fulfilled my prophecy, for the type in mind 

 was removed from Mentzelia in 1891 under a new name, Hesperas- 

 ter} Three years later another botanist, reasserting the generic 

 rank of the group, and finding Hesper aster to be a synonym, pre- 

 sented the species all in line under a name sixty years older than 

 Hesperaster, namely, Touteria. 



I made each time mental note of the attempt to invest this 

 group with a tenable name, and knew the futility of each at- 

 tempt ; but it was not the time for me to speak, as I thought, 

 particularly as I had already published, ten or a dozen years 

 before, all needful instruction for those who might be out in 

 quest of the name for Pursh's homonymous Bartonia; and so 

 I now gladly avail myself of the opportunity of making restitu- 

 tion to the memory of Nuttall, whose once currently-accepted 

 genus I fifteen years ago discovered untenable and displaced. 



The following is a partial list of the published species of 

 Nuttallia : 



•Torreya i. 142. 



