600 JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



The effects of the mites upon the tissues are carefully described. The 

 cells of the dermatogen of the bud are much enlarged and swollen and 

 the protoplasm is altered. The periblem is also altered, for it becomes 

 several layers thick instead of only one layer as in normal buds. 



G. F. S.-E. 



Yucca, Additions to the Genus. By W. Trelease (Rep. Miss. 

 Bot. Gard. 1907, pp. 225-230 ; 6 plates). — Descriptions of two new 

 species : Y. decipiens, from the central tableland of Mexico, near 

 Y. australis ; and Y. Endlicheriana, the "pistilla" of Marte, Coahnila, 

 Mexico, &c, near Y. baccata. The former species was figured by the 

 author as Y. valida in the Thirteenth Report of the Garden (1902) ; the 

 latter, which yields a valuable fibre, is figured in this memoir, together 

 with Y. periculosa, which is the Y. baccata periculosa of Mr. Baker, 

 and a new spontaneous variety, Y. Harrimaniae Gilbertiana, from 

 Western Utah. — G. S.B. 



Zaluzianskya maritima. By S. A. Skan (Bot. Mag. tab. 8215). 

 — Nat ord. Scrophulariaceae ; tribe, Manuleae. South Africa. Perennila 

 herb ; stem ^-3 feet high ; leaves 1-3 inches long ; spikes rather dense, 

 with green bracts ; flowers 1 inch diam. ; corolla deep red below, white 

 above. — G. H. 



