Zbi CEREUS 



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

 much resembles C. grandifloru.i, but is easily distin- 

 guished by its smaller and different colored fls. 



53. Martitaus, Zucc. Of bushy growth, branching, 

 reaching a height of 3 ft. and more ; branches slender, 

 provided here and there with aerial roots, cylindrical, 

 about %m. in diam : ribs commonly 8, straight, sepa- 

 rated by sharp grooves, very low : areolae %-% in. 

 apart, small, white : radial spines 6-10, bristle-form, 

 spreading, clear honey-yellow, at base brownish, later 

 whitish and becoming gray, about Min. long ; centrals 

 3-4, similar, only somewhat stouter and darker : fls. 

 usually abundant, straight or slightly S-shaped, 4-5 in. 

 long, scarlet-red : fr. spherical, reddish green, covered 

 with bristles. Southern Mex. B.M. 3768. 



BB. Jiibs of stem 3-o. 



54. nycticilus, Link. Night-bloomdjg Cereus. Sub- 

 erect, very long-jointed, %-l in. in diam. : joints vari- 

 able, some cylindrical, others 4-ti-angled : ribs acute 

 at first, obtuse later : spines 1^, and very small : fls. 

 white and fragrant, about 7 in. long. Mex. — The com- 

 monest Night-blooming Cereus. 



55. in^rmis, Otto. Sts. branching, climbing, branches 

 4-5-angled, sharp-winged, yellowish green, later darker, 

 slightly crenate : areolae in the depressions, small, 

 bearing a few bristles when young, but soon naked. 

 Venezuela. 



56. hamitus, Scheidw. (C. rostr&tus, 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 areolae: spines 5-6, bristle-form, whitish 

 to brown very short and partly deciduous fls large, 

 10 16 m long and nearly the same m diauneter, white, 

 nocturnal f entral Mexico 





CEROPEGIA 



58. Napolednis, Graham. Suberect and long-jointed, 

 the joints 3-angled and with flat sides, 12 in. or more 

 long, %-l in. in diam. : spines 3 or 4, subulate, unequal, 

 black; sometimes a few white bristles: fls. snowy white, 

 8 in. long and 6 in. broad: fr. bluish and spiny, 3 by 4 

 in. W. Ind., Mex. B.M. 3458. 



.'i9. ext^nsns, S.ilm Dvi'k. f'liml) lur • ^tom^ rir-bly 



and strong, straight or very slightly curved, dark brown, 

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

 branches, 8-9 in. long, rose-red. Trinidad. B.M. 4060, 



60. triangularis, Haw. Stnn^ joint.-.l. I,.ii- :,ii,l >li-n- 

 der, climbing : ribs :;. r,.ni|.r.--r(i, thin, an.i aliMUt i in. 

 or more high, creuat.', wuli a r,,nirMiis i]ia]-i;iii ( c.iiin-i-t- 

 ing the areolae: arc. la- al."iit 1-1'.. in. apait : radial 

 spines 2-4, bristle-form, shuit. sii,m ili.-ciduou.s ; (■(•mrals 

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

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

 fully open, white, nocturnal, tube covered with large, 

 leaf-like scales : fr. large, covered with the persistent 

 large scales. Mexico and West Indies. B.M. 1884 Sin. 

 6:5.— The fruit is edible and very refreshing, and is 

 common in the Mexican markets. 



BBB. ffibs inconspicuous or wholly absent. 



61. MacD6naldiae, 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 sol tary ( or rarely 2 ) short porrect brow n or 

 black inconspicuous fls lateral about 14 in long white, 



urcturnd Htnduiis B AI 4 



1 g S\T10p 



f < < t ( panus C 



C conoideus C 



\ 



57. B^gelii, Hort. This form 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. hnma- 

 tus or C. MacDonaldice, with one of which it may be a 

 hybrid. 



CERlNTHE ( nek keyot wax 

 the ancients be 

 bees visited the 

 \ BoragmdcetB 

 Ij t annual or per 



^^* 1 Europe and Asia 



Minor with alteri nd showy purple 



1 ratts. The best >-i which has a unique 



appearance in the gard* n, aiid i.> .suungly recommended 

 for more general cultivuliuu. It is a hardy annual of 

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

 worts, see Gn. 41, p. 212. 



ret6rta, Sibth. & Sm. Honeywort. Fig. 415. Height 

 VA-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. 

 On. 41: 847. w. M. 



C£B0F£6IA (Greek, wax and fountain, Ihe flowers 

 having a waxy look). Asclepiaddcew. Greenhouse vines 

 of Africa and Asia, not in the Amer. 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. 



