Tab. 4162 

 ECHINOCACTUS oxrQovm. 



Sharp-angled Echinocactus. 



Nat. Ord. Cacte^e. — Icosandria Monogynia. 

 Gen. Char. (Vide supra Tab. 4124J 



Echinocactus oxygonus ; subglobosus v. magis minusve elongatus ver- 

 tice depresso 1& — 15 angularis, sinubus profundis, costis compressis 

 sinuato-lobatis circa areolas subinflatis, areolis reraotis rotundis junio- 

 ribus flavido-dein griseo-tomentosis, aculeis 6 — 8 — 10 semiuncialibus 

 subulatis rectiusculis subsequalibus patentibus, floribus (roseis) inter 

 maximos, tubo longissimo superne dilatato squamis villosis. 



Echinocactus oxygonus. Link et Otto in Verhandl. des Pr. Gart. 

 Vareins. v. 6. t. 1. Lindl. Bot. Reg. t. 1717. Pfeiff. Enum. Cact. 

 p. 70. 



Scarcely any plant possesses more noble or more lovely 

 blossoms than the present; and they are the more striking, 

 from the circumstance of their being produced from so grace- 

 less and small a trunk. It is, moreover, a free-flowering 

 plant in the month of May ; and we have, while I am writing, 

 specimens with three blossoms expanded at the same time : 

 their duration, is, in cloudy weather at least, of two days. 

 The species is said to be a native of South Brazil. 



Descr. Our specimens are from seven to ten inches in 

 height, subglobose, but generally a little longer than broad ; 

 hence somewhat oval, or obovate, depressed at the top ; green 

 slightly inclining to glaucous. There are from thirteen to 

 fifteen deep furrows, with acute sinuses, and as many pro- 

 minent, compressed ridges, sinuato-lobate at their edges. 

 Areola about three-fourths of an inch apart, sunk, as it were, 

 in the upper edge of each lobe, sphserical, woolly, with six to 

 ten, rather short, straightish, spreading, nearly equal spines. 

 It is from the areole of some of the upper lobes that toe 

 flowers spring, a span and more long, often longer than the 

 plant itself. °Tube very long, trumpet-shaped, raeniah, with 

 many red-brown, villous, appressed scales which gradually 



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