284 CEREUS 



with pink, nocturnal. W. Ind. and Mex.— The plant 

 much resembles C. grandiflorua , but is easily distin- 

 guished by its smaller and different colored fls. 

 53. Marti&nus, Zucc. Of bushy growth, branching. 



the- 



ft, and more ; 



ohf^ M. 



1, 4-5 in. 

 covered 



with bri.stles. i^outliern .Mex. B.M. a? 

 BB. liihs of stem S-5. 

 54. nyoticWus, Link. Night-blooming Cereus. Sub- 

 erect, very Ioult -jointed, J-^-l in. in diam. : joints vari- 

 able, .some r , iin^ii , ,,], ,,iliers 4-6-angled : ribs acute 

 at first, .ii, II . . ■., Mies 1-4, and very small : fls. 



white iiiel !! i r ,11 7 in. long. Max. — The com- 



.5.). in^rmis, < ittw. Si ^. branching, climbing, branches 

 4-5-angled, sh:iri)-\vin;^e(l, yelbiwish green, later darker, 

 slightly creuate : ure(.he in the depressions, small, 

 bearing a few bristles wlieu young, but soon naked. 

 Venezuela. 



56. hamitUB, Schcidw. (C rostrdtus, Lem.). Stems 

 slender, weak, climbing, bright green, less than 1 in. in 

 diam., reaching a length of 10 ft. : ribs remotely serrate, 

 the serrations repand, and bearing on their anterior 

 edge the small areola): spines 5-6, bristle-form, whitish 

 to brown, very short and partly deciduous : fls. large, 

 10-16 in. long and nearly the same in diameter, white, 

 nocturnal. Central Mexico. 



CEROPEGIA 



58. Napolednis, Oralinm. Suhereet and lone-jointed, 

 the joints 3-angled ami . itii llM -li- -, IJ in. .'.r ni..:.- 

 long, %-l in. in diam. : •■ ' i' ilnti , uim i|ii:il. 

 black; sometimes a fe\', i ., -m .,.. \ m i, ;i, , 



8 in. long and 6 in. br". , : i , i, ana .-['in\ . ;: lt\ i 



in. W. Ind., Mex. B.M.:.l.;o. 



59. ext§nBU8, Salm-Dyck. Climbing : stems richly 

 branching, about 3 ft. long by about %m. in diam., dark 

 green, soon becoming covered with gray-yellow, corky 

 flakes: 3-angled, angles blunt, later beconiing depressed, 

 so that the older stems are cylindrical : areolae M-Zyi 

 in. apart, white, becoming gray: spines 2-4, very short 

 and strong, straight orvery slightly curved, dark brown, 

 becoming gray with age : fls. from the sides of the 

 branches, 8-9 in. long, rose-red. Trinidad. B.M.4066. 



60. trianeul4riB, Haw. Stems jointed, long and slen- 

 der, climbing : ribs 3, compressed, thin, and about 1 in. 

 or more high, crenate, with a corneous margin connect- 

 ing the areolse : areolae about 1-1 J^ in. apart : radial 

 spines 2-4, bristle-form, short, soon deciduous ; centrals 

 1-3, conical from a bulbous base, dark colored : fls. 

 large, about 1 ft. long by about the same diameter when 

 fully nppTi, white, nnrturnal, tube covered with large, 

 leaf-lilir ^riili ~ : ff. large, covered with the persistent 



large .<;,i, -. M,.\ and West Indies. B.M. 1884 Mn. 



6:5.- I'lii iniit i- edible and very refreshing, and is 

 common lu the .M. \iean markets. 



BBB. liibs inconspicuous or wholly absent. 



61. MacDfinaldiae, Hook. Climbing, and of rapid 

 growth, richly branching, branches very long, cylindri- 

 cal or with here and there very obtuse and not continu- 

 ous angles, dark green : areolae elevated on tubercles 

 which are arranged spirally on the branches, small : 

 spine solitary (or rarely 2), short, porrect, brown or 

 black, inconspicuous : fls. lateral, about 14 in. long, white, 



nocturnal Honduras B M 4707 



Qebsen C Qitadalupanus O 



CEBlNTHE (G: 

 that, flower 

 ved that the 

 for wax) 



Bo> 



indi 



415. 



Cerinthi 



(XK.) 



57. Bfegelii, Hort. This fonn is very common in the 

 trade; is a very excellent plant, with good, fixed char- 

 acters ; is a slender climbing plant. Its origin is ob- 

 scure, but, from its vegetative characters, as well as 

 floral, it is apparently closely related to either C. Jiama- 

 tus or 0. MacI)onaldim,viith one of which it may be a 

 hybrid. 



'i-y 



About G species of annual or per 

 lal herbs from Europe and Asia 

 Minor, w ith alternate, glaucous Ivs. and showj purple 

 bracts. The best species is C. retorta, which has a unique 

 appearance in the garden, and is strongly recommended 

 for more general cultivation. It is a hardy annual of 

 easy culture. For a garden review of the other Honey- 

 see Gn. 41, p. 212. 



retbrta, Sibth. & Sm. Honeywort. Pig. 415. Height 

 lX-2 ft. : Ivs. glaucous, often spotted white or red ; 

 lower Ivs. obovate-spatulate ; upper Ivs. amplexicaul, 

 with 2 round ears, on the flowering branches gradually 

 becoming smaller and closer together until they pass into 

 purple bracts, which form the chief attractive feature of 

 the plant : fls. when full-blown protruded beyond the 

 bracts : corolla tubular-club-shaped, yellow, tipped pur- 

 ple, with 5 small, spreading teeth. Greece. B.M. 5264. 

 Gn.41:847. w. M. 



CEBOPfiGIA (Greek, tfox and fountain, the flowers 

 having a waxy look). AsclepiadAceiv. Greenhouse vines 

 of Africa and Asia, not in the Anier. trade. A dozen spe- 

 cies are known in Old World collections. Many of them 

 have tuberous roots, and need a season of rest and dry- 

 ness. Prop, by cuttings. Odd and handsome. 



