Coreopsis tinctoria.
ultimate divisions largest. Flowers often terminating the branchlets by
pairs, with the peduncles unusually short. Exterior calix minute,
much shorter than the interior, and in common with it, and the number
of rays mostly eight-leaved. Rays three-lobed at the extremity, of
a bright orpiment-yellow* and brownf towards the base; disk brown,J
and rather small. Receptacle paleaceous, the leaflets deciduous. Seed
small, blackish, immarginate, curved, and naked at the summit.”
“ Habitat. Throughout the Arkansa territory to the banks of the Red
river, chiefly in the prairies which are subjected to temporary inundation.
Flowering from June to October.”^
We are indebted to Mr. Nuttall for the addition to our Flora, of this
very elegant species of Coreopsis. It is one of that number of new
and rare plants, the discovery of which rewarded the zeal of that botanist
in his last travels through the Arkansa territory. His full description,
as quoted above, renders any other unnecessary.
Figure i. Represents a flowering portion, of its natural size. Culture
much improves the flowers in size.
2. A radical leaf.
3. A floret, magnified.
4. The calix, its natural size.
* Gamboge-yellow. f Auricula-purple. ^ Auricula-purple.
§ Journal Acad. Nat. Sc. Phil. 1821. p. 114.
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