666 SEDDM. [CLASS X. ORDER IV. 



leaves, the barren branches spreading, and much crowded with imbri- 

 cated leaves. Leaves linear, awl-shaped, thick, tapering into a bristle 

 point, and with a short spur at the base, of a dull green colour, some- 

 what glaucous, frequently becoming of a brownish pink, especially the 

 lower ones, and spreading or reflexed. Inflorescence a terminal cyme 

 of several branches, smooth, and bearing numerous yellow jBowers, the 

 branches as the flowers become matured, frequently recurved. Calyx 

 of five ovate acute segments, half as long as the lanceolate spreading 

 'petals. Stamens shorter than the petals, and varying in number from 

 ten to twelve, and the petals and pistils are frequently six, instead of 

 the normal number five. 



Habitat.— Old walls, roofs of houses, and dry banks; frequent. 



Perennial; flowering in July. 



9. S. glau'cunij Donn. (Fig. 759.) Glaucous Yellow Stonecrop. 

 " Leaves glaucous, awl-shaped, scattered, spurred at the base, those of 

 the branches thread-shaped; flowers cymose; segments of the calyx 

 lanceolate." — Smith. 



English Botany, t. 2477. — English Flora, vol. ii p. 321. — Hooker, 

 British Flora, vol. i. p. 213 — (3. glaucum, Koch.— ^S. albescens^ 

 Haworth. — Lindley, Synopsis, p. 65. 



This, according to Smith, " diS'ers from the last in being of a more 

 glaucous hue, with much more slender leaves, especially on the radical 

 shoots. The branches of the cyme are more uniformly spreading, and 

 the segments of the calyx narrower, and more pointed." 



Habitat.— Rough hills near Mildon Hall, Suffolk.— Mr. F. Eagle, 

 Wall at Sunday's Well, near Glaskeen, County of Cork. — Mr. J. 

 Drummond. 



Perennial ; flowering in July and August. 



This, which has been distinguished as a species, we are much disposed 

 to consider only a variety of the former, depending upon some local 

 circumstance in the situation of its growth. It is variable in the 

 number of the parts of the flower, from five to seven in the petals and 

 pistils, and double that number of stamens. We have observed it 

 much more frequent on old walls, rocks, banks, and dry places, in 

 many parts of the Apennines of Italy, than with us; but have not been 

 able to satisfy ourselves of its right to the distinction of a species, 

 as we observe every shade of difference between the extremes of the 

 two not only in form but colour, which difi*erences seem to depend 

 upon the more or less sunny situation or dampness of the soil in 

 which they have grown. 



10. S. rupes'tre, Linn. (Fig. 760.) St. Vincent^s Rock Stonecrop. 

 Leaves linear, awl-shaped, acute, fleshy, with a bristle point, spurred 

 at the base, scattered on the stem, densely crowded on the branches; 

 cymes smooth ; calyx segments roundish, obtuse, much shorter than 

 the lanceolate petals 



