OF ORNAMENTAL PERENNIALS. 211 
QENU8 XXVII. 
GRINDELIA, Kmth. THE GRINDELIA. 
Lin. Syst. SYNGENESIA SUPERFLUA. 
Grnkiuc Character. — Involucre with numerous imbricated scales ; I of the ray ligulate, feminine. Anthers, naked at the base. Achenium 
receptacle naked. Flowers of the disk tubular, hermaphrodite ; those j obliquely ovate, pappus bristly, deciduous. 
Description, &c. — This genus of very handsome flqysrers was originally called Donia, in honour of 
Mr. Don, the curator of the Botanic Garden at Edinburgh ; but it was united by Mr, Brown to the genus 
Grindelia, which had previously been established and named in honour of a German botanist named Grindel. 
The first species, named Donia glutinosa, is a greenhouse half-shrubby plant ; but most of the other species are 
hardy perennials, which flower freely in the open air. Most of the species were formerly included in the genus 
Doronicum. 
1.— GRINDELIA INULOIDES, Lindl. THE INULA-LIKE GRINDELIA 
SvNONYME. — Aster spathularis, lirouss. 
Engravings. — Bot. Reg. t. 248 
Sphcific Character. — Leaves oblong, and sometimes fiddle-shaped. 
deeply serrated. Stem and leaves both pubescent ; pappus simple, 
and consisting of two or more fine bristles. 
Description, &c. — This very showy plant is not hajf so much cultivated as it deserves to be, from an idea 
that it requires a greenhouse to bring it to perfection. It is true it is better if slightly protected during the 
winter, by putting a little straw oyer the roots, or turning a flower-pot over tliem during severe weather ; but, 
under favourable circumstances, it flowers better in the open air than in a greenhouse. The flowers are yeUow, 
the florets of the ray rolling back as they fade ; and the involucre produces a white glutinous juice, which, indeed, 
is found more or less in all the species of the genus. The stem generally grows about two feet high, and the 
leaves are rough and hairy. This species is propagated by seeds, cuttings, or division of the root. It is a native 
of Mexico, and was introduced in 1815. 
2.— GRINDELIA ANGUSTIFOLIA, Kunth. THE NARROW-LEAVED GRINDELIA. 
SvNONYHE. — G. Arguta, Dec. I Specific Character. — Stems simple, unbranchcd. Lower leaves 
Engravihgs. — Bot. Reg. 781, t. 29; and oat fig. i, in Plate 55. | spathulate ; upper ones linear, oblong, serrated, very slightly nerved. 
Description, &c. — This very handsome species grows in large bushes of single stems, each from three to 
four feet high, and in the beginning of August it produces its large and showy flowers, which continue till the 
stems are killed down to the ground by the frost. The plants are quite hardy in the open ground, but they 
thrive best in a free soil and an open situation. The species is a native of Mexico, and grows on the Table-land 
at an immense elevation above the level of the sea. It was introduced in 1822. It is propagated by seeds, and 
by dividing the roots ; and it is well deserving of cultivation in any garden yf^eto there is plenty of room. 
3 — GRINDELIA SQUARROSA, Dec. T^E SNAKE-HEADiED GRINDELIA. 
Synonyme. — Donia squarrosa, Pursh. | .Specific Character. — Herbaceous. Leaves oblong, stem-clasping, 
Engraving. Bot. Mag. t. 1706. I serrated. Scaler of tV involucre thread-like, and curved backwards. 
Description, &c. — This species is a herbaceous perennial, a native of the open meadows on the banks of the 
Missouri, where it was discovered in August, 1804. The involucre and the back of the flo\!rer produce a 
glutinous liquid, which has a strong resinous smell. It flowers from August to Novembei, and is propagated by 
seeds or division of the roots. 
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