164 
THE CACTACEAE. 
Type locality: Argentina. 
Distribution: Argentina. 
This species has a wide range in southern Argentina and consists evidently of several 
races differing in armament and relative length of the perianth-tube and limb. A plant 
from the Berlin Botanical Garden sent as Echinocactus quehlianus produced flowers 
identical with those of a plant of E. platensis brought by Dr. Rose from Cordoba. 
Illustrations: Bltihende Kakteen 2: pi. 105; Mollers Deutsche Gart. Zeit. 25: 474. 
f. 6, No. 21; Monatsschr. Kakteenk. 10: 152; Schumann, Gesamtb. Kakteen Nachtr. f. 
28, as Echinocactus quehlianus; Monatsschr. Kakteenk. 17: 9; 29: 141, as Echinocactus 
platensis. 
Figs. 176 and 177.—Gymnocalycium platense. 
Plate xvni, figure 2, shows a plant in flower, brought by Dr. Rose in 1915 to the New 
York Botanical Garden from near Cordoba, Argentina; plate xix, figure 1, shows the 
flowering top of a plant received at the New York Botanical Garden from the Berlin 
Botanical Garden as Echinocactus quehlianus. Figure 176 is from a photograph of a 
plant from Argentina determined by Dr. Spegazzini as Echinocactus platensis leptanthus. 
Figure 177 is from a photograph contributed by Dr. Spegazzini; figure 178 is from a 
photograph also from Dr. Spegazzini, illustrating Echinocactus baldianus. 
21. Gymnocalycium schickendantzii (Weber). 
Echinocactus schickendantzii Weber, Diet. Hort. Bois 470. 1896. 
Echinocactus delaetii Schumann, Monatsschr. Kakteenk. 11: 186. 1901. 
Usually simple, sometimes depressed, up to 10 cm. in diameter; ribs usually 7, broad, more or 
less tuberculate; spines 6 or 7, all radial, more or less spreading, the larger ones flattened; flowers 
often from the side of the plant as well as central, white or pinkish in age, 5 cm. long; inner perianth- 
segments oblong to spatulate, obtuse; scales on the ovary and flower-tube purplish, broad and 
rounded. 
Type locality: Catamarca, Tucuman, Argentina. 
Distribution: Northern Argentina. 
