

82 



MISSOURI BOTANICAL GARDEN. 



globular, small, red, with remote small scales and little wool, crowned 

 with the dried remains of the flower; pulp white; seeds small, glossy 

 black, slightly punctate. — Plate 0,f. 2-5; 12, f. 2. 



Leniaire founded his genus upon 



Cereus (Cleistocactns) Baumannii Lem. 1. c. 133. 



S«ay. 



Uruguay, Para- 



c 



C. laniceps 



h 



C. parvijlorus 



Sch 



both 



Baumannii var. smaragdift 



regular flowers. 



I have not yet seen it, and perhaps it 



C. Ba 



a different species. 



Cleistocactus is a very natural subgenus, as can be seen 

 from the flower and fruit represented in the plates. It is 



met 





XVIII. APOROCACTUS Lem. in Illustr. Hort. 7. 



(1860). Misc. 67. (as genus). 



Flower small, bright red; ovary globose, densely covered with deltoid 

 scales and long, somewhat firm white hairs; tube slender, slightly bent 

 upwards above the ovary, with sepaloid linear-lanceolate acute and patent 

 perianth leaves, the inferior with a few hairs and smaller, the upper in- 

 creasing in size; petals broader, acute, zygomorphically bent upwards 

 and downwards, nearly forming 2 lips ; filaments inserted near the base 

 of the tube, esserted; style longer, with 5-7 red stigmata. Fruit glo- 

 bose, small, reddish, squamose and setose; pulp greenish yellow; seeds 

 not very numerous, reddish brown, obovate. 



This also is a very natural subgenus. It comprises the 

 Flagriformes of K. Schumann with the exception of O. 

 Martianus Zucc, which in spite of its slender stems and 



E 



Cereus (Aporocactus) flayelliformis Mill. 1. c. 142. 

 C. (Aporocactas) Jlayriformis Zucc. 1. c. Nachtr. 46 



Mexico. 

 Mexico. 



(Apo 



Mexico. 





