LOBIVIA. 



57 



Type locality: Andalgala, province of Catamarca, Argentina. 



Distribution: Western Argentina. # 



This plant has passed as a variety of Cereus huascha, now Trichocereus huascha, but the 

 two are so unlike that we have referred them to different genera. Both species are still 

 little known and further study of them is much desired. 



Figure 72 is from a photograph contributed by Dr. Spegazzini; figure 75 shows a 

 flower collected by Dr. Shafer between Andalgala and Concepcion, Argentina, in 191 7 (No. 



27)- 



15. Lobivia haematantha (Spegazzini). 



Echinocactus haemalanlhus Spegazzini, Anal. Mus. Nac. Buenos Aires III. 4: 498. 1905. 

 Somewhat depressed, globose, 5 cm. high, 6 cm. in diameter, greenish, somewhat shining; ribs 11, 

 somewhat tubereulate, obtuse; areoles nearly circular, 5 to 6 mm. in diameter, white-felted; radial 

 spines 6 to 8, slender, 5 to 10 mm. long, more or less appressed; central spines 3, stouter than the 

 radials, 5 cm. long, pale gray with yellowish tips; flowers 3 to 4 cm. broad ; inner perianth-segments 

 obovate to spatulate, obtuse, purplish; stigma-lobes 9 to 12, white; scales on ovary and flower-tube 

 long-woolly. 



Fig. 73. Lobivia haematantha. 



Fig. 



-Lobivia thionanthus. 



Type locality: Near Amblaio, province of Salta, Argentina. 

 Distribution: Known only from the province of Salta, Argentina. 

 We know the plant only from photographs and the description. 

 Figure 73 is from a photograph contributed by Dr. Spegazzini. 



16. Lobivia grandiflora sp. nov. 



Globose to short-cylindric, 7.5 to 10 cm. in diameter, 15 to 20 cm. long; ribs about 14; areoles 

 about 1 em. apart; spines about 15, slender, subulate, about 1 cm. long, yellowish; flowers funnel- 

 form, 10 cm. long; perianth-segments narrow, acuminate, 4 to 5 cm. long, pink; scales on the ovary 

 narrow, 10 to 12 mm. long, a little hairy in their axils. 



Collected by J. A. Shafer between Andalgala and Concepcion, Argentina, December 

 28, 1916, altitude 1,750 meters (No. 28). 



The showy pink flowers of this plant are larger than those of any of the other species 

 which we have included in this genus. 



1 7. Lobivia thionanthus (Spegazzini) . 



Echinocactus thionanthus Spegazzini, Anal. Mus. Nae. Buenos Aires III. 4: 499. 1905. 

 Plants usually solitary, globular to short-eylindric, grayish green, 5 to 12 cm. high, 6 to 10 cm. 

 in diameter; ribs usually 14, low, slightly undulate and divided into indistinct tubercles; areoles 

 short-elliptic; spines subulate, grayish or with brownish tip, about equal, 10 to 15 mm. long; flowers 



