r 



Supplement. 



511 



Cereus ^continued. 



irregular rin^: stamens rose-coloured, clustered. Summer 

 Stems procumUent, not more tli.m 6in. lons^ and 3in. thick, 

 bearing, alouj; the ridges, little tubercles, crowned with short 

 spines South Texas and Mexico. I'laat dwarf, creeping, 

 soft and watery. See Fig, 4 



Cerens— continued. 



tN*^jPI'»»^ xTy/'//^ -^^^.:- 



Fig. 5. Portion of Stem, with Flower, of Cereus 



Blankii. 



C, Blankii (Blank's). This only differ.^ from C. Berlandieri 

 in iiaving deep rose flowers, flushed with crimson, and 

 longer, broader, and less spreadiu.i; i)otals. Summer. 

 Mexico (at high elevations). See Fig. 5. 



Fig. 6. Cereis cespitosls. 



C. cs&spitosus (tufted), /. deep rose-coloured ; petsrls thirty to 



forty, oitlon^, acute, obtuse, or mucrruiate ; tube naviup eighty to 



one hundred cushions clothed with long, ashy wool, and six to 



sixteen brown or blackish spines. Stems 4in. to 6in. high, Sin. 

 to "■ ' " 



Fio. 7, Cerels cte.noidks. 

 C. ctenoides (comb-like).* fi. 3in. to 4in. across, produced in the 



ud::es near the top of the stem ; petals bright yellow, resembling 

 a Convolvulus; stamens yellow; pistil white. June or July. 

 Stem 3in. to 5in. high, about 5in. in diameter, egg-shaped, pro- 

 ducing offsets at the l*ase ; ribs fifteen or sixteen, spirn], with 

 closely-set cushions of whitish spiius \\\\. long. Texas. R-ire in 

 cultivation. See Fig, 7. 

 C. Engelmanni (Kngelmann's). n, puridi^h-carmine ; sepals 



fornia, 1885. (K. ii. 1174 [1175 a in text].) 

 C enneacanthus (nine-spined). /.freely developed on the 



