290 THE CACTACEAE. 
Cactus reptans Willdenow (Ann. Hort. Berol. Suppl. 33. 1813) was taken up in this 
work by mistake as Cereus reptans. 
Cactus neglectus Dehnhardt (Rivist. Napol. 1. 3: 166.), according to the Index 
Kewensis, is a species of Pereskia. 
Cereus erinaceus is credited to Haworth by Steudel (Nom. ed. 2. 1: 334. 1840) and said 
to come from the West Indies. Steudel must have had in mind Cactus erinaceus Haworth; 
if so, the plant is from South America. 
Cereus torrellianus (Monatsschr. Kakteenk. 20: 42. 1910) is probably a misspelling for 
C. tonelianus. 
Figure 263, shown below, gives a typical Arizona landscape in which C. arnegiea gigantea 
is the dominant plant. 
