GYMNOCALYCIUM. 



I6 5 



Shafer's No. 103 from Traneas flowered in Washington in June 1920. The flowers were 

 erect and the perianth-segments waxy, becoming pinkish; the ribs were strongly tubercled. 



Fig. 1 78. Gymnocalycium 

 platense. 



Fig. 179. Gymnocalycium 

 schickendantzii. 



Illustrations: De L,aet, Cat. Gen. f. 19; Schumann, Gesamtb. Kakteen Nachtr. f. 29; 

 Schelle, Handb. Kakteenk. 191. f. 124, as Echinocactus schickendantzii; Monatsschr. 

 Kakteenk. 11: 187; Gartenwelt 7: 279; Gard. Chron. III. 33: suppl. plate, as Echinocactus 

 delaetii. 



Plate xix, figure 2, shows a plant collected by Dr. Shafer at Andalgala, Argentina, 

 in 1917 (No. 15), which flowered in the New York Botanical Garden in July 1918. Figure 

 179 is from a photograph contributed by Dr. Spegazzini, showing a plant from Cordoba, 

 Argentina; figure 181, also from one of Dr. Spegazzini's photographs, shows another plant 

 from Cordoba. 



Fig. 180. Gymnocalycium stuckertii. Fig. 181. Gymnocalycium schickendantzii. 



22. Gymnocalycium stuckertii (Spegazzini). 



Echinocactus stuckertii Spegazzini, Anal. Mus. Nac. Buenos Aires III. 4: 502. 1905. 



Plant globose, sometimes depressed, dull green, 6 to 6.5. cm. in diameter, 3.5 to 4 cm. high; ribs 

 9 to 1 1 , obtuse ; spines all radial, pinkish to brown, flattened, puberulent, 1 to 2.5 cm. long, somewhat 

 spreading; flowers 4 cm. long, the tube rather short; inner perianth-segments nearly white; scales on 

 the ovary and flower-tube scattered, broadly ovate, scarious-margined. 



Type locality: Province of San Luis Potosi, Argentina. 

 Distribution: Northern Argentina. 



