EPIPHYIvLUM. 199 



is said to be a native of Mexico, but probably is of hybrid origin. It is described as having one of 

 the largest flowers among cacti, rivaling Selenicereus grandiflorus and Heliocereus speciosus. 



Epiphyllum splendens Hortus (Ann. Fl. Pom. 343, 1839) is referred here by the Index 

 Kewensis. It is, however, described on page 345 and illustrated on plate 44. This illustra- 

 tion is very different from that of Paxton. 



Phyllocactus albus grandiflorus. 

 Illustration: Cact. Journ. i: 37. 



PhylIvOcactus albus supbrbus. 



Illustration: Blanc, Cacti 88, No. 251 1. 



Phyllocactus cooperi Regel, Gartenflora 33: 218. 1884. 



This is a hybrid between Epiphyllum crenatum and Selenicereus grandiflorus. It 

 has large yellowish flowers. 



Illustrations: Gartenfiora 33: pi. 1176, as Phyllocactus crenato grandiflorus; Cassell's 

 Diet. Gard. 2: 192. 



Phyllocactus erebus. 



This is a large red-flowered hybrid. 

 Illustration: Bliihende Kakteen 3: pi. 160. 



Phyllocactus haagei. 



This is doubtless a garden hybrid related to Epiphyllum ackermannii. It has large 

 flowers, 12.5 cm. broad, at first flesh-colored, becoming carmine. 



Illustrations: Diet. Gard. Nicholson 4: 590. f. 58; Watson, Cact. Cult. 54. f. 13. 



Phyllocactus hibridus gordonianus. 



Illustration: Bliihende Kakteen i: pi. 36. 



Phyllocactus hibridus wrayi. 



This is said to be a cross between Selenicereus grandiflorus and Epiphyllum crenatum. 

 Illustration: Bliihende Kakteen 2: pi. 62. 



Phyllocactus hildmannii. 



Illustration: Gartenfiora 44 : pi. 1421, f. 2. 



Phyllocactus marsus. 



Illustration: Diet. Gard. Nicholson Suppl. 598. f. 631. 



Phyllocactus pfersdorffii. 



Illustrations: Cact. Journ. i: 38; Riimpler, Sukkulenten f. 85; Schelle, Handb. Kak- 

 teenk. 221. f. 144. 



Phyllocactus roseus grandiflorus Watson, Cact. Cult. 55. 1889. 



This was figured and described by Watson with flowers 15 cm. long and broad, nodding 

 and white ( !) ; doubtless of hybrid origin ; it may be the same as Phyllocactus roseus 

 grandissimus (Monatsschr. Kakteenk. 19: 182. 1909). 



Illustrations: Diet. Gard. Nicholson 4: 591. f. 59; Forster, Handb. Cact. ed. 2. 857. f. 

 117; Watson, Cact. Cult. 55. f. 14. 



Phyllocactus ruestii Weingart, Monatsschr. Kakteenk. 24: 123. 1914. 



We have not seen this plant and Mr. Weingart, who described it, says that he does 

 not possess either living or herbarium material but that it is still growing at Halle, Germany. 



