204 



THE CACTAC^AK. 



I 



Stem bright green, long and clambering, the branches strongly 4-angled, rarely 3-angled, about 

 ..5 cm. thick; areoles with spines and black wool, remote, at the upper edges of knobby projections, 

 these often forming obtuse, deflexed spurs about i cm. long; spines on juvenile plants bristle-like, 

 white, on old branches fewer, stouter, brown or black; flower 20 to 25 cm. long; upper scales dark 

 green, tinged with red; outer perianth-segments pale green, narrow, about 8 cm. long; inner 

 perianth-segments broad, white; flower-tube 10 cm. long, 22 mm. in diameter, its areoles long-hairy; 

 filaments, style, and stigma-lobes yellow. 





i 



j 



1 



Fig. 282. — Selenicereus hamatus. 



Type locality: Mexico 



Distribution: Southern and eastern Mexico. 

 According to the Index Kewensis Cereus rosira 

 but Dr. Rose was unable to find it there in 191 3 



occurs on the island of Antigua, 



Fig. 283.— Part of branch of S. hamatus. X0.5. 



common 



Mexico 



eastern coast of Mexico, probably in the wooded regions 



specimens, it seems to be common 



^ 



