20 THE CACTACEAE. 



To this species Schumann refers Cereus flavescens (Pfeiffer, Knum. Cact. 79. 1837) 

 and with it should be referred Echinocereus flavescens (Riimpler in Forster, Handb. Cact. 

 ed. 2. 826. 1885). Cereus multangularis var. albispinus and var. prolifer Salm-Dyck (Hort. 

 Dyck. 62. 1834) and var. rufispinus Fobe (Monatsschr. Kakteenk. 18: 75. 1908) are unpub- 

 lished names. 



Cereus kageneckii Gmelin (Pfeiffer, Enum. Cact. 77. 1837), also, according to the 

 Index Kewensis, Cactus kageneckii (De Candolle, Prodr. 3: 463. 1828) and Cereus 

 ochracanthus (Pfeiffer, Enum. Cact. 78) were published as synonyms. 



In the Engelmann Herbarium is a single specimen labeled " Cereus multangularis" with 

 the following note: "Columnar, similar to serpentinus, coll. Germantown, Pa., October 

 27, 1869." We believe this plant is Nyctocereus serpentinus. 



Dr. A. Hrdlicka collected in March 19 13, in the mountains southeast of Nasea, Peru, 

 at an altitude of 5,000 to 7,000 feet, a curious plant which may represent the one referred 

 here by Schumann. It is a low cespitose plant, rarely 2 feet high, with numerous low almost 

 indistinct ribs, nearly hidden by the numerous spines; areoles approximate, 4 to 5 mm. 

 apart, felted and spiny; spines 25 or more, brown or white with brown tips, the longest 

 ones 12 mm. long; flower-buds scaly, woolly, and setose in their axils. Living specimens 

 were sent to Washington, but these eventually died without flowering. 



Cereus lecchii (Pfeiffer, Enum. Cact. 78. 1837; Cactus lecchii Colla and C. lanugi- 

 nosa aureus Colla, Hort. Ripul. 25. 1825; Echinocactus lecchii Don in Sweet, Hort. 

 Brit. ed. 3. 283. 1839) * s referred here by Schumann. Cereus lanuginosus aureus (Pfeif- 

 fer, Enum. Cact. 78. 1837) was given as a synonym of C. lecchii. Cactus lecchii was 

 illustrated by Colla in his Fourth appendix to the Hortus Ripulensis (Mem. Accad. 

 Sci. Torino 35: pi. 2). 

 Cereus limensis Salm-Dyck, Allg. Gartenz. 13: 353. 1845. 



Echinocereus limensis Riimpler in Forster, Handb. Cact. ed. 2. 824. 1885. 

 Cereus multangularis limensis Maass, Monatsschr. Kakteenk. 15: 119. 1905. 



Stems erect, thick, very green; ribs 12, obtuse, subrepand; areoles close together, oval, filled with 

 yellow tomentum; spines acicular, setaceous, rigid, the central ones 8 to 10, divergent, yellowish 

 red, one longer than the others; radial spines 20 to 25, reddish yellow above, white below. 



The above is a free translation of the original. 



This species is not determinable but was referred by Schumann to Cereus multangularis. 

 Echinocereus multangularis limensis Lemaire (Riimpler in Forster, Handb. Cact. ed. 2. 

 824. 1885) was given as a synonyhi of Echinocereus limensis. 



Cereus langlassei, Monatsschr. Kakteenk. 14: 145. 1904. Mentioned as a seedling from Paris. 



Weingart (Monatsschr. Kakteenk. 29: 105. 19 19) described the plant after it had made 



some growth and compared it with C. eburneus (Lemaireocereus griseus.) 

 CEREUS horizontals Gillies in Sweet, Hort. Brit. ed. 3. 285. 1839. Described as horizontal with 



stems of 5 or 6 angles. 

 Cereus amblyogonus G. Don in Sweet, Hort. Brit. ed. 3. 284. 1839. Described as "blunt angled " 



and introduced from South America. 

 Cereus caudatus Gillies in Sweet, Hort. Brit. ed. 3. 285. 1839. Described only as "tailed" and 



introduced from Chile in 1828. 

 Cereus longifolius Karwinsky in Sweet, Hort. Brit. ed. 3. 286. 1839. Described as "long-leaved." 

 Cereus de laguna Haage in Forster, Handb. Cact. 433. 1846. Said to be similar to C. geometrizans 



and C. eburneus and to be from Brazil. 

 Cereus regalis Haworth in Sprengel, Syst. 2: 496. 1825. Described as erect, 9-ribbed, and with 



elongated yellow equal spines. 



Cereus ovatus Don (Loudon, Hort. Brit. 195. 1830; Cactus ovatus Gillies) and Cereus 

 decorus Loddiges (Voigt, Hort. Suburb. Calcutt. 62. 1845) were both introduced into 

 India in 1 840 but are not now known nor have they been described. 



Cereus flavispinus Roezl in Morren (Belg. Hort. 24:39. 1874), collected by Roezl 

 probably in the high mountains above Lima, was never formally published. 



