C. Cavendishii (Cavendish’s). A synonym 
C. Childsii (Child’s). 
1900 SUPPLEMENT—RECENT INTRODUCTIONS, &C. 217 
Cereus—continued. 
Fic. 227. PORTION OF STFM, WITH FLOWER, OF CEREUS 
BLANKII. 
yellow. Summer. Stem erect, tall, bluish when young; ridges 
about eight, prominent, waved, bearing tufts of blackish wool, in 
which are set about a dozen black spines. Mexico, 1841. 
(B. M. 3922.) 
C. czspitosus (tufted). 1. deep rose-coloured; petals thirty to 
forty, oblong, acute, obtuse, or mucronate; tube having eighty to 
one hundred cushions clothed with long, ashy wool, and six to 
sixteen brown or blackish spines. Stems 4in. to 6in. high, 3in. 
to 4in. in diameter, simple or clustered, cylindric-oyoid, pale 
greyish or whitish, with scanty brown wool; ribs twelve to 
eighteen, 4in. to Zin. broad at base; cushions close-set, with 
Fic. 228. CEREUS CESPITOSUS. 
twenty to thirty ConA spines tin. or 
more in length. New Mexico and Texas, 
1880. (B. M. 6669.) See Fig. 228. 
of C. Paxtonianus. 
ink, 30in. in cir- 
cumference, composed of six rows of re- 
curved petals, the numerous stamens 
standing well above them; opening at 
night. Probably a form of C. variabili: 
C. cirrhiferus (tendril-bearing). fl. bri 
ht : 
red, nearly 4in. across, very regular, Santing about a week. 
Stems prostrate, branching, very proliferous, with roots along 
the main ones ; branchlets upright, five-angled, with slightly- 
raised points or tubercles, upon which are ten short, hair-like 
spines, arranged in a star, and surrounding three or four erect 
eae — Mexico, 1847. A small-growing kind. 
Vol. V. 
Cereus—continued. 
Fic. 229. CEREUS CTENOIDES. 
C. ctenoides (comb-like).* jl. 3in. to 4in. across, produced in the 
ridges near the top of the stem ; petals bright yellow, resembling 
a Gonvalaatae stamens yellow; pistil white. June or July. 
Stem 3in. to 5in. high, about 3in. in diameter, egg-shaped, 
producing offsets at the base; ribs fifteen or sixteen, spiral, with 
closely-set cushions of whitish spines jin. long. Texas. Rare in 
cultivation. See Fig. 229. 
Fic. 230. PoRTION OF STEM, WITH FLOWER, OF CEREUS ENNEACANTHUS. 
c. Engelmannii (Engelmann’s). /l. perpen sepals 
fifteen to twenty, ovate-lanceolate, prickly ; petals acute ; stigmas 
twelve, green, erect. jr. red, ovate. Stem ovate-cylindrical, 
eleven- to thirteen-ribbed, bearing the flowers laterally at the 
apex ; prickles radiating, whitish, about thirteen ina tuft. Cali- 
fornia, 1885. (R. G. 1174 [1175a in text).) ae 
