1717 



* ECHINOCACTUS oxygonus. 

 Sharp-angled spiny Cactus. 



ICOSANDRIA MONOGYl^lA. 



Nut. ord. Cacte^. Juss. {Introduction to the Natural System of 

 Botany, p. 54.) 



ECHINOCACTUS. Supra, fol. 1707. 



E. oxygonus ; glaucescens subglobosus 14-angularis, costis acutis repandis, 

 spiiiis patulis inaequalibus, flore longissimo. Link et Otto in Verhandl. des 

 Pr. Gart. Vereins, vol. 6, t. 1. 



We have been favoured by Mr. Frederick Mackie with 

 the figure of this species, which he received along with a 

 large number of other rare and valuable succulent plants, 

 belonging to the unrivalled collection of Mr. Hitchin, which 

 he has recently added to his Nursery at Norwich. 



The flower remained expanded about 48 hours. The 

 species is thus described in the Transactions of the Prussian 

 Horticultural Society : — 



"The stem is from 10 inches to a foot in height, nearly 

 10 inches in diameter on the top, somewhat smaller below, and 

 nearly of a globular form, of a bluish-green colour. Its ribs, 

 which are fourteen, rise from a broad base, running into an 

 acute edge. The furrows are somewhat sharp ; spines 

 about 14, of various sizes, the outer generally larger, the 

 inner smaller; those more or less divaricate from each 

 other, these standing up nearly perpendicular ; all of a 

 brown colour, cone-like, not flat, the younger surrounded 



* Sec foli(. 1707. 



