REVISION OF THE GENUS CEBEUS MILL* 63 



Very likely also Pllocereus scoparius Pos., which is 

 said to be closely related to C. Schottii, belongs here. 



I have a very fine dried specimen of C. Schottii, which 

 I received from Mr. F. De Laet, of Contich, It has 8 

 ribs, the areoles very closely set, and grayish tortuose 

 bristles, which are flexible, not very pungent and spirally 

 twisted just as the seta of many mosses are. 



Cereus (Lophocereus) Schottii Engelm. 1. c. 171. — North Mexico, 



Baja California, Arizona. 

 C. {Lophocereus ?) scoparius (Poselg.) A. Berg. 1. c. 179. — Mexico. 

 C. {Lophocereus?) Urbanianus (K. Sch.) A. Berg. 1. c. 193. — Guade- 

 loupe Island. 



III. MYRTILLOC ACTUS Console in Bollet. Reg. Ort. 



Bot. Palermo. 1 : 10. (1897). 



Flowers very small (2 cm.), several (5-9) from one and the same 

 somewhat enlarged and woolly areola; ovary naked; tube short funnel- 

 shaped with a few minute scales; perianth leaves few, sepaloid brown- 

 ish, petaloid white, linear-spatulate; filaments inserted near the base 

 of the petals, exserted. Berry small, smooth, reddish brown. 



Cereus (Myrtillocactus) geometrizans Mart. K. Sch. Monogr. 104. 



Mexico, 3aja California. 



This plant is very common in cultivation, but generally 

 in small specimens. It forms a small richly branched tree. 

 A large plant flowers and fruits annually in the Botanic 

 Garden at Palermo, upon which Console founded his 

 aenus. Also a small cutting flowered and fruited once at 



La Mortola. 



The flowers, in size and color, resemble orange blossoms. 

 The fruit is sold in Mexico. It is called Garambullos and 

 is eaten raw with sugar or preserved. 



IV. PACHYCEREUS A. Berg. 



Ovary ovate to globose, densely covered with small imbricated scales 

 and woolly hairs and bristles ; petaloid perianth leaves short, spatulate, 

 little expanded ; stamens numerous, inserted along the tube; style not 

 exserted. Fruit globose, densely covered with wool and numerous long, 

 thin bristles. Plate 1 . 





A 



