are decidedly ciliato-serrate. ‘There are, nevertheless, some 
points wherein the present plant does not agree with the genus 
Donia of Mr Brown, which is stated to have a “ caducous 
pappus;” and if, as Mr Brown is of opinion, Donia is the same 
with Grindelia of WiLLDENOW, then there exists a farther 
disparity in the character of “ setae 3-4;” the plant now under 
consideration having, assuredly, a pappus composed of many 
setae, which are not, either, as far as I could discover upon exa- 
mining a much advanced germen, at all caducous. | 
Donia ciliata was discovered by Mr NuttTauu in the Ar- 
kansa territory of North America, growing on the alluvial banks 
both of the river Arkansa and of the Great Salt River, flower- 
ing from August to October. From seeds communicated ‘by 
that gentleman to the Liverpool Botanic Garden, the specimen 
here delineated was raised. Mr Nurrau observes, that there 
_ are few more desirable autumnal plants than the present, for 
the open border; and that in the garden belonging to the Uni- 
versity of Philadelphia, it proves perfectly hardy, as it will al- 
so probably do in this country. 
Fig. 1. Portion of the Involucre and of the Receptacle, from which most of 
the florets have been removed. Fig. 2. Young perianth with its pappus. 
Fig. 3. Upper part of a central floret, shewing the Anthers and Stigma. 
Fig. 4. Seta of the Pappus. Fig. 5. Appearance of a portion of the leaf, 
when held up against the light—AU more or less magnified. 
2 
