62 
THE CACTACEAE. 
2. Echinopsis mirabilis Spegazzini, Anal. Mus. Nac. Buenos Aires III. 4: 489. 1905. 
.Simple, cylindric, 12 to 15 cm. high, 2 cm. in diameter, dull yellowish green; ribs 11, slightly 
undulate; areoles minute; spines all straight; radial spines 9 to 14, slender; central spine solitary, 
erect, 10 to 15 mm. long; flowers borne near the top of the plant, inodorous, 11 to 12 cm. long; inner 
perianth-segments white, acuminate; scales on ovary and flower-tube very woolly in their axils, 
thin, scarious at base, almost filiform, 8 mm. long; outer perianth-segments similar to the scales but 
longer; fruit 3.5 to 4 cm. long, 5 to 6 mm. in diameter; seeds globular, 1.5 mm. in diameter, with a 
depressed hilum. 
Fig. 80. Echinopsis meyeri. Fig. 81. — Echinopsis mirabilis. 
Type locality: Near Colonia Ceres, province of Santiago del Estero. 
Distribution: Known only from province of Santiago del Estero, Argentina. 
This plant is called flor de la oraeion. 
Besides photographs of the type Dr. Spegazzini has presented us with a fruit from the 
type plant. 
Figure 81 is from a photograph contributed by Dr. Spegazzini. 
3. Echinopsis forbesii (Lehmann) A. Dietrich, Allg. Gartenz. 17. 193. 1849. 
Echinocactus forbesii Lehmann in Walpers,* Repert. Bot. 2: 319 1843 
Echinopsis valida Monville in Salm-Dyck, Cact. Hort. Dyck. 1849. 1S1. 1850. 
Echinopsis valida forbesii R. Meyer in Schumann, Gesamtb. Kakteen 239. 1897. 
hEE a ' 1 ' f /'' A Lehm. in Terscheck, Suppl Cact. 2." Forster (Handb. Cact. 520. 1846) used Echinopsis 
orbesu Hort. Angl. as a synonym of Eclunocactus forbesii, but hardly publishes it. 
