LEMAIREOCEREUS. 



99 



I 



Illustrations: 



Acclim. France <2:f. a: Cact. Mex 



Hornaday, Campfires on Des. and Lava opp, 68, 136; MacDougal 



15; 



Monatsschr 



from a photograph taken by Dr. MacDougal 



E 



figM 



Quijotoa Moun 



18. Lemaireocereus laetus (HBK.) Britten and Rose, Journ. N. Y. Bot. Gard. 20: 157. 19 19 



r 



Cactus laetus Humboldt, Bonpland, and Kunth, Nov. Gen. et Sp. 6: 68. 

 Cereus laetus De Candolle, Prodr. 3: 466. 1828. 



: 4 to 6 meters high, much branched, bluish gray but not glau 



1823. 



:; spines brown when young, becoming gray to nearly white in age, usually 

 les 8 cm. long, subulate; flowers 7 to 8 cm. long; inner perianth-segments 

 green without, very spiny, splitting down the side when ripe, white within; 



pulp edible; seeds black. 



Type locality: Ne 

 Distribution: Cen 



formerly in Ecuador 

 southern Ecuador. 

 Catamayo Valley in southern Ecuad 



common TNo. 2^^ao1 : it was. however, seen only in this one locahty in Ecuador. We 



Mrs. Rose alone the Rimac River below Matucana 



July 







x^ .— - ■ ■'' ■■- 





.^ /^ - 





*^ 



* 1 - 



(l 



Fig. 145. — Lemaireocereus laetus. 



We have referred here the plant from Catamay 



Fig. 146. — Lemaireocereus laetus. 



in this region which could possibly have been described as Cactus laetus. It is such a con- 



Humboldt 



Wood 



reference. Through the kindness of Dr. 



Natural History Museum of Paris specimens of this Catamayo 



compared, if possible, with Humboldt 



able to send to the 



M. Lecomte 



specimen 



It is of interest to note that in 1825 Sprengel, who redescribed 



ema 



same 



The original description of Cactus 



