ECHINOPSIS. 
65 
Kakteenk. 112. 1907) lists the following as hybrids with this species and E. eyriesii: 
E. triumphans, E. nigerrima, and E. undulata. Echinopsis roehlandii is figured in the 
Revue Horticole (85: pi. opp. 304). 
Two varieties, inermis and subinermis, are sometimes given under this species. E. 
oxygona turbinata Mittler (Labouret, Monogr. Cact. 306. 1853) is considered a hybrid. 
Illustrations: Mollers Deutsche Gart. Zeit. 16: 80; 25: 475. f. 7, No. 3, as Echinopsis 
lagemannii; Curtis’s Bot. Mag. 71: pi. 4162; Edwards's Bot. Reg. 20: pi. 1717; Verh. Ver. 
Beford. Gartenb. 6: pi. i, as Echinocactus oxygonus; Schelle, Handb. Kakteenk. 114. f. 49; 
Cact. Journ. i:pl. 6; Pfeiffer, Abbild. Beschr. Cact. 2: pi. 4; Mollers Deutsche Gart. Zeit. 25: 
475. f. 7, No. 2; Gartenwelt 1: 283. 
Figure 82 is from a photograph, contributed by Dr. Spegazzini. 
Fig. 82.—Echinopsis oxygona. Fig. 83.—Echinopsis tubiflora. 
8. Echinopsis eyriesii (Turpin) Zuecarini in Pfeiffer and Otto, Abbild. Beschr. Cact. i : under pi. 4. 
1839- 
Echinocactus eyriesii Turpin,* Ann. Inst. Roy. Hort. Fromont 2: 158. 1830. 
Cereus eyriesii Pfeiffer, Enum. Cact. 72. 1837. 
Echinonyctanthus eyriesii Lemaire, Cact. Gen. Nov. Sp. 84. 1839. 
Echinopsis pudantii Pfersdorf, Monatsschr. Kakteenk. 10: 167. 1900. 
Simple or clustered, globular to short-columnar; ribs 11 to 18, not tuberculate, rather thin above; 
areoles circular, filled with white or tawny wool; spines several, 14 to 18, very short, 5 mm. long or 
less; flower from the side of plant but above the middle, large, 17 to 25 cm. long; inner perianth- 
segments white, acuminate; stamens and style shorter than the perianth-segments; scales on 
the flower-tube small, ovate, brownish, hairy in their axils. 
Type locality: Buenos Aires, according to Pfeiffer. 
Distribution: Southern Brazil, Uruguay, and province of Entre Rios, Argentina. 
The following varieties have been published, some well-known hybrids, others mere 
forms; var. cristata (Monatsschr. Kakteenk. 2: 27. 1902); vars. glauca and glaucescens 
(Forster, Handb. Cact. 360. 1846); vars. tettavii and triumphans Jacobi (Forster, Handb. 
Cact. ed. 2.626,630.1885), sometimes given as Echinopsis triumphans (Monatsschr. Kakteenk. 
15: 33. 1905) and var. grandiflora R. Meyer (Monatsschr. Kakteenk. 21: 186. 1911). Schelle 
(Handb. Kakteenk. in, 112. 1907) gives the following varieties besides two quadrinomials: 
major, rosea Link, cristata, phyligera, and duvallii. 
* The reference for this species is usually cited as "Obs. Cact. 58,” referring to a paper by Turpin entitled ‘‘Obser¬ 
vations sur la Famille des Cactees, etc.” in three parts which appeared in the above cited volume. 
