46 



nosum, Thorny or Prickly Alysson; 2. A. halimifolium, Sweet or Sea 

 Purslane- leaved Alysson; 3. A. saxatile, Yellow Rock Alysson; 4. A. 

 incamim, Hoary Erect Alysson; 5. A. calycinum, Calycine Alysson; 

 (). A. canipestrc, Field Alysson ; 7- A. creticum, Cretan Yellow Alysson ; 

 8. A. deltoideum, Deltoid-leaved Alysson; 9- A.montanum, Mountain 

 Dark-yellow Alysson. 



The first species has woody branches, which rise about two feet 

 high, and are armed with small spines. The leaves are hoary, lan- 

 ceolate, and thinly placed on the stalks without any order. The 

 flowers grow in small clusters at the extremities of the branches. 

 The petals are white and entire, and the filaments toothless. It is a 

 native of Italy. 



The second species spreads itself upon the ground, and never 

 rises to any height. The leaves are narrow, spear-shaped, pointed, 

 and entire. At the extremities of its branches it produces very 

 pretty tufts of small while-coloured flowers, of which the plant is 

 seldom destitute for six or seven months together. In it the stamina 

 are simple, and the silicles roundish and entire. It is a native of the 

 southern countries of Europe. 



The third is also a low plant, with a fleshy stalk, which seldom 

 rises more than one foot high, but divides into many smaller branches, 

 which grow near the ground, so that a single plant spreads to a con- 

 siderable distance. The leaves are spear-shaped, soft waved and 

 entire: the flowers produced in loose panicles at the extremity of 

 every branch, and are of a bright yellow-colour. They mostly ap- 

 pear about the end of April, or beginning of May ; and, if the season 

 be moderate, continue three weeks or more in beauty. It is a small, 

 showy, hardy plant, and not disposed to overrun others. It fre- 

 quently flowers a second time in autumn. 



The fourth species grows to the height of two feet, having woody 

 stalks, which divide into several branches towards the top. The 

 leaves are spear-shaped, hoary, and entire. At the extremity of 

 every shoot the flowers are produced in round bunches; and are 

 small and of a while colour. The silicic is entire, oval, and full of 

 seeds. It grows naturally in the South of France. 



