BRITTON AND ROSE—-CEREUS AND ITS ALLIES. 437 
Cereus rigidissimus Muhlenpf. Allg. Gartenz. 16: 12. 1842, not Lem. 1840. 
Said to have come from Mexico, but we know it only from description. 
Cereus testudo. 
This is a plant recently collected by Dr. C. A. Purpus in the State of Vera Cruz, 
Mexico. It is said¢ to be a parasitic species, in habit resembling C. wittii, but the 
material in our possession does not enable us to determine its relationship. As far as 
we can learn, it has not been formally published. 
Cereus vagans K. Brandegee, Zoe 5: 191. 1904. 
Type LocALITy: Mazatlan, Mexico. 
Cereus viperinus Weber; Gosselin, Bull. Mus. Paris 10: 385. 1904. 
Type LocaLity: Zapotitlan, Mexico. 
Cereus weingartianus Hartm. Monatssch. Kakteenk. 14: 155, 1904. 
Type LocaLity: Hayti. 
Distrisution: Known only from the type plant. 
Flowers and fruit unknown. 
Cereus wercklei Weber, Bull. Mus. Hist. Nat. 8: 460. 1902. 
Type LocaLity: Cerro Mogote, near Miravalles, Costa Rica. 
Disrrisution: Known only from the type locality. 
Pilocereus albisetosus (Haw ) Schum. Gesamtb. Kakteen 196, 1899. 
Cereus albisetosus Haw. Suppl. Pl. Succ. 77. 1819. 
TYPE LocaLity: ‘‘ Domingo.”’ 
Described as a trailing, white-spined, 5-angled species. Evidently not a Cepha- 
locereus. 
Pilocereus fimbriatus (Lam.) Lem. Rey. Hortic. 1862: 427. 1862. 
Cactus fimbriatus Lam. Encyel. 1: 539. 1783. 
Cereus fimbriatus DC. Prod. 3: 464. 1828. 
Cereus serruliflorus Haw. Phil. Mag. 1830: 109, 1830. 
Type LocaLity: Santo Domingo. 
DistriBuTion: Santo Domingo. 
Intustration: Plumier, Pl. Am. ed. Burmann pl. 195. f. 1. 
Although admitted to Pilocereus by Lemaire, the form of the flower as shown in 
the illustration, as also the serrate inner petals, does not make this disposition of it 
satisfactory, although the style is exserted. The spines are said to be ‘‘setaceous”’ 
and the illustration shows them so. 
Pilocereus grandispinus (Haw.) Lem. Rey. Hortic. 1862: 427. 1862. 
Cereus grandispinus Haw. Phil. Mag. 1830: 109. 1830. 
TYPE LocALITY: Santo Domingo. 
Disrripution: Santo Domingo, 
ILLusTRATION: Plumier, Pl. Am. ed. Burmann p/. 195. f. 2; Descourt. Fl. Antill. 
pl. 419, as Cactus fimbriatus. 
Not a Cephalocerens. 
4 Monatsschr, Kakteenk, 18: 15, 1908. 
