ECHINOPSIS. 67 



Echinopsis decaisneana is a delicately fragrant, beautiful pink form with large flowers; 

 the inner perianth-segments are oblong, acute or acuminate. It is a hybrid between this 

 and some other species. The flowers open during the day and last usually for more than 

 one day. 



Illustrations: Cact. Journ. 1: 59; 2: 169, as Cereus gemmatus; Mollers Deutsche Gart. 

 Zeit. 25: 475. f. 7, No. 14, as Echinopsis gemmata cristata; Cycl. Amer. Hort. Bailey 2: f. 

 749; Stand. Cycl. Hort. Bailey2: f. 1377; Mollers Deutsche Gart. Zeit. 25: 475. f. 7, No. 23; 

 Tribune Hort. 4: pi. 139; Gartenwelt 7: 289; U. S. Dept. Agr. Bur. PI. Ind. Bull. 262: pi. 10, 

 as Echinopsis gemmata; Diet. Gard. Nicholson 1: 502. f. 697; Forster, Handb. Cact. ed. 2. 

 621. f. 81, as Echinopsis decaisneana; Pfeiffer, Abbild. Beschr. Cact. 2: pi. 7. 



Plate vi, figure 1, shows a plant in the collection of the New York Botanical Garden. 



10. Echinopsis tubiflora (Pfeiffer) Zuccarini in A. Dietrich, Allg. Gartenz. 14: 306. 1846. 



Cereus tubiflorus Pfeiffer, Enum. Cact. 71. 1837. 



Echinopsis zuccarinii Pfeiffer in Pfeiffer and Otto, Abbild. Beschr. Cact. 1: under pi. 4. 1839. 



Echinocactus tubiflorus Hooker in Curtis's Bot. Mag. 65: pi. 3627. 1839. 



Echinonyctanthus tubiflorus Lemaire, Cact. Gen. Nov. Sp. 85. 1839. 



Echinonyctanthus tubiflorus nigrispinus Lemaire, Cact. Gen. Nov. Sp. 85. 1839. 



Echinopsis nigrispina Walpers, Repert. Bot. 2: 324. 1843. 



Echinopsis mehmacantha Dietrich, Allg. Gartenz. 14: 306. 1846. 



Echinopsis grandiflora Linke, Allg. Gartenz. 25: 239. 1857. 



Echinopsis tubiflora paraguayensis R. Meyer, Monatsschr. Kakteenk. 23: 153. 1913. 



Simple or clustered, subglobose, about 12 cm. in diameter; ribs about 12, prominent, slightly 

 undulate; areoles circular, tilled with white wool; spines subulate, black, 10 to 12 mm. long; flowers 

 from the side of the plant, 15 to 20 cm. long; inner perianth-segments spreading, white, acuminate; 

 filaments and style projecting a little beyond the throat ; axils of scales on flower-tube bearing long 

 wool. 



Type locality: Not cited. 



Distribution: Provinces of Tucuman, Catamarca, and Salta, Argentina; recorded from 

 Brazil. 



Pfeiffer (Enum. Cact. 71. 1837) gives Echinocactus tubiflorus as a synonym of Cereus 

 tubiflorus. 



Salm-Dyck (Cact. Hort. Dyck. 1849. 39. 1850) gives Echinopsis zuccariniana Pfeiffer 

 instead of E. zuccarinii and Riimpler uses this spelling. Under E. zuccariniana several 

 floral and abnormal forms have been described as varieties, among which are rosea, cristata, 

 monstrosa, picta, rohlandii, and nigrispina and under E. zuccarinii, monstruosa, nigrispina, 

 and picta; some of the same varieties appear under E. tubiflora including nigrispina, 

 rosea, and rohlandii. Walpers (Repert. Bot. 2: 324. 1843) credits the name Echinonyc- 

 tanthus nigrispinus to Lemaire, but Lemaire used the name nigrispinns only as a variety 

 of E. tubiflorus. 



Echinopsis droegeana Berger (Monatsschr. Kakteenk. 1: 24. 1891) is probably a hybrid 

 with this species as one of the parents. 



Echinopsis zuccarinii robusta is in the trade (Grassner). 



Illustrations: Hartinger, Parad. 1 : 8, as Cereus tubiflorus; Curtis's Bot. Mag. 65: pi. 3627, 

 as Echinocactus tubiflorus; Mollers Deutsche Gart. Zeit. 16: 80, as Echinopsis tubiflora 

 hybrid; Monatsschr. Kakteenk. 4: 27, as E. zuccariniana rohlandii; Belg. Hort. 16: pi. 

 opp. 130, as Echinopsis zuccariniana; Schelle, Handb. Kakteenk. f. 50; Floralia 42: 372. 



Figure 83 is from a photograph contributed by Dr. Spegazzini. 



11. Echinopsis albispinosa Schumann, Monatsschr. Kakteenk. 13: 154. 1903. 



Low, simple or somewhat cespitose, almost globular; ribs 10 or 11, slightly undulating; spines 

 1 1 to 14, at first reddish brown, becoming white, somewhat ascending; flowers white, 19.5 cm. long, 

 as long or longer than the plant itself; scales on flower- tube and ovary bearing cobwebby hairs in 

 their axils. 



