200 THE LADIES' FLOWER-GARDEN 
and its allies, which were formerly included in the genus Achillea, are now placed in a separate genus called 
Ptarmica ; and of the species of Milfoil, very few are grown in gardens. Nearly all the species are natives of 
Europe ; and the few that are not, are found in Asia. None have yet heen discovered in Africa, America, or 
Australia. All the species iire hardy, and some of them are rather pretty. 
1.— ACHILLEA TOMENTOSA, Lin. THE YELLOW MILFOIL, OR GOLDEN YARROW. 
Engravings. — Bot. Mag. t. 498 ; and oar Jig. 3, in Plate SO. 
Specific Chikacter. — Leaves woolly, bipinnatifid ; segments crowded, linear, acute. Corymbs repeatedly compound. 
Description, &o. — This very pretty little plant, which is admirably adapted for rockwork, seldom grows 
more than six inches high. The whole plant is covered with a soft woolly down, which looks nearly white at a 
little distance, and contrasts prettily with the bright yellow of the flowers. The species is a native of Spain and 
the South of France, whence it was introduced in 1658. In Sowerby's English Botany, it is said to be found 
occasionally in dry hilly pastures in Scotland and Ireland ; but it can only be of very rare occurrence. It will 
grow in any dry soil ; and it is propagated by dividing the root. 
Engravings. — Bot. Mag. t. 1287 ; and oar Jig. 3 in Plate 50. 
Specific Character. — Leaves woolly, pinnatifid ; segments linear, 
obtuse, slightly dentated at tlie tip. Corymbs simple. 
2.— ACHILLEA CLAVEN.a:, Lin. CLAVENA'S SILVERY-LEAVED MILFOIL. 
Synonymes. — Ptarmica ClavennEe, Dec. ; P. incana, Boerh. ; Ab- 
sinthium alpinum, Clus. ; A. umbelliferum, Clav. ; A. latifolium, 
Bauh. ; A. album, Lob. ; Antabsinthum Clavense, Spec. ', Dracuncu- 
lus alpinus, Mor. 
Description, &c. — This very pretty plant, bearing considerable resemblance to the English Sneeze-wort, has 
been replaced by De Candolle in the genus Ptarmica ; in which it was put by Boerhaave above a hundred 
years ago, though it was considered by Linnaeus to belong to the genus Achillea, and is generally placed there in 
botanical collections. It is a native of Styria, and it was first discovered in that country by Clusius, who found 
it growing on steep rocks, where it was obliged to send its roots down through the fissures in search of nourish- 
ment. It was afterwards found on Mount Serva, by Nicolas Clavena, an apothecary at Belluna, in the Venetian 
territory. Clavena wrote a treatise on the virtues of the plant, and procured a kind of patent for selling it ; that 
is, permission to prepare a sort of conserve from it, which should be sold only by himself. This occasioned 
warm disputes ; as some of the medical men of Venice asserted that Clavena had no right to any exclusive 
privileges respecting a plant which had been first discovered and described by Clusius. However, there is no 
doubt that the plant was named by Linnaeus in honour of Clavena, and that consequently the specific name 
should be Clavenae, and not Clavennae, as it is spelled by Hale, Linnaus, and other botanists. The species was 
introduced from Austria in 1656; and it is of the easiest culture in British gardens, only requiring a dry soil. 
OTHER SPECIES OF ACHILLEA. 
A. MILFOLIUM, Lin., var RUBRA, Dec, and o\xr Jig. 1, in Plate 50. 
This is only a pink-flowered variety of the common Milfoil or Yarrow ; but it is really a very pretty garden 
flower, and well deserving of cultivation, as it will grow in any soil or situation. It is a British plant, having 
been accidentally raised from seed of the Yarrow, which is common by the road-side in every part of Britain. 
A. PTARMICA, Lin. 
The Sneeze-wort is another British plant, well deserving of cultivation. 
