1C. 78 
Selenicereus 
PlaPxt flowering June 1, 1912; stems 8 to 10 nim 
7 to 
in diameter; ribs 8, sligh 
ly ridged but rounded; furrows 2 to 4 irmi. deep; ridges bearing areoles at 
intervals of 10 to 17 mm,, where ribs become slightly larger; areoles 
bearing 4 to 5 spines, one of these often central, 4 mm. long, near gam- 
boge colored as given in Winsor and Newton’s Artists' Oil Colors, also 
bearing 3 whitish bristles pointing dovmward and slightly diverging, slen- 
der, 4 to 5.5 mm. long; areoles circular, a.bout 1,5 mni. in diameter; stems 
bearing on under side aerial roots 10 to 14 cm. long; stems varying in 
color from light malachite green to purple miadder, as given in Winsor and 
Newton's Water Colors. 
Collected by Dr. Palmer April 30, 1910, at Panuco, Mexico, southwest 
of Tampico 
