128 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



flower-stems similar but smaller. Inflorescence terminal, slightly branched, few- 

 flowered, with small leaf -like bracts l)elow the sessile flowers. Flowers flattish, 

 I inch across. Sepals unequal, ovate, blunt, very fleshy, J to J the petals, pale 

 green. Petals broadly ovate, obtuse, patent above, wavy, white with a purple 

 midrib and a cluster of vein-like purple markings on either side of it, \ way up 

 from the base. Stamens equalling the petals, adnate in the lower third, filaments 



Fig. 66. — S. glabrum nov. comb. 



greenish, anthers reddish. Scales minute, ovate, greenish, set in a slight hollow 

 in the carpels. Carpels stout, ovate, strongly mammillate, streaked and dotted 

 with purple, at first erect, later slightly spreading, tapering into short, straight, 

 erect styles. 



Flowers August. Not hardy. 

 Habitat. — Saltillo, Mexico. 



Received from Washington. The plant as figured here was not 

 yet fully grown. 



44. Sedum pachucense nov. comb. (fig. 67). 



Synonym. — Sedastrum pachucense C. H. Thompson in Trans. Acad. Sciences, 

 St. Louis, 20, 21-22, pi. X., igii. 

 Illustration. — I.e. (photo.). 



A well-marked Sedastrum, with dense, small Sempervivum-Hke 

 leaf-rosettes and taUish. few-flowered stems. It comes very near 



