THE GENUS NUTTALLIA. 209 
more distant from Sida than from Malvastrum. Asa genus I 
designate this group DIsELLA. 
D. HEDERACEA. Dougl.in Hook. Fl., under Ma/va. 
D. LEPIDOTA. Gray, g i 
D. SAGITTIFOLIA. Gray, < Sida. 
D. CUNEIFOLIA. Gray, S vg 
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 Wuttallia 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- 
żer. Three years later another botanist, reasserting the generic 
rank of the group, and finding Hesperaster 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 Ze 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: 
1Torreya i. 142. 
