ZYGOCACTUS. 179 
Epiphyllum ruckeri Paxton (Mag. Bot. 12: 46. 1846) was described from cultivated 
plants of unknown origin as an improved variety of Epiphyllum truncatum. It may have 
been a hybrid. 
Epiphyllum truncatum multiflorum was given as a synonym of Epiphyllum altensteinii 
by Pfeiffer (Enum. Cact. 128. 1837). 
Eptphyllum elegans Cels and E. violaceum Cels (Forster, Handb. Cact. 446. 1846) were 
supposed to be only varieties of Epiphyllum truncatum. 
Schelle (Handb. Kakteenk. 223. 1907) lists more than fifty forms of Epiphyllum 
truncatum; the following not hitherto mentioned by us under Epiphyllum have the regular 
Latin form: 
amabile roseum maximum salmoneum brasiliense spectabile superbum 
carmineum morellianum salmoneum flavum splendens 
gracile pallidum reoseum salmoneum marginatum translucens 
grandiflorum rubrum purpureum salmoneum rubrum violaceum album 
harrisonii rubrum violaceum snowi violaceum grandiflorum 
lateritium album salmoneum aurantiacum spectabile carmineum superbum 
makoyanum 
Illustrations: Nov. Herb. Amat. pl. 83; Loudon, Encycl. Pl. 413. f. 6903; Loddiges, 
Bot. Cab. 13: pl. 1207; Curtis’s Bot. Mag. 52: pl. 2562; Edwards’s Bot. Reg. 9: pl. 696; 
Fic. 187.—Zygocactus truncatus. 
Reichenbach, Fl. Exot. pl. 325; Hooker, Exot. Fl. 1: pl. 20, as Cactus truncatus; Wiener 
Ill. Gart. Zeit. 18: 265. f. 55, as Phyllocactus delicatus; Bliihende Kakteen 1: pl. 25; Cact. 
Journ. 1: 34, 114; Cycl. Amer. Hort. Bailey 2: f. 765; Engler and Prantl, Pflanzenfam. 
3: f. 61, A, B, C; Schumann, Gesamtb. Kakteen f. 9, 43; Hort. Univ. 7: facing 132; 
Karsten, Deutsche Fl. 887. f. 501, No. 3; ed. 2. 2: 456. f. 605, No. 3; Forster, Handb. 
Cact. ed. 2. 129. f. 5; Riimpler, Sukkulenten f: 87; Hort. Franc. 11.4: pl. 3; Schelle, Hand. 
Kakteenk. 223. f. 145; Balt. Cact. Journ. 1: 49; Floralia 42: 375; Gard. Chron. 1847: 
324; 11. 6: 808. f. 148; ur. 7: 173. f. 29; UI. 19: f. 1; West Amer. Sci. 7: 172; Amer. 
Gard. 11: 534; Schelle, Handb. Kakteenk. 224. f. 196; 225. f. 147; Rother, Praktischer 
Leitfaden Kakteen 104; Belg. Hort. 16: pl. opp. 257; also the vars. spectabile, cruentum, 
and violaceum; Deutsches Mag. Gart. Blumen. 1852: pl. opp. 176. f. 2; Gartenwelt 4: 230; 
Goebel, Pflanz. Schild. 1: f. 55 (seedling) ; Garten-Zeitung 4: 182. f. 42, No. 2; Jacquin, 
Ecl. Pl. Rar. 2: pl. 142, as Epiphyllum truncatum; Pfeiffer and Otto, Abbild. Beschr. Cact. 
I: pl. 28, as E. altensteinii; Gard. Chron. 11. 32: f. 140, as &. delicatum ; Schumann, 
Gesamtb. Kakteen Nachtr. f. 9; Monatsschr. Kakteenk. 13:7, as E. delicatulum ; Deutsches 
