58 



THE CACTACEAE. 



obconic, 4.5 cm. long, not odorous; inner perianth-segments yellowish, 15 mm. long, elliptic, the 

 apex subretuse or mucronate; filaments yellow; style greenish white; stigma-lobes 12, flesh-colored, 

 a ring of dense brownish hairs within the flower-tube, below the stamens ; ovary and flower-tube 

 covered with scales, each with a reflexed cartilaginous somewhat pungent apex, very woolly in 

 their axils. 



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



Distribution: Known only from the type locality. 



Figure 74 is from a photograph contributed by Dr. Spegazzini. 



18. Lobivia chionanthus (Spegazzini). 



Echinocaclus chionanthus Spegazzini, Anal. Mus. Nac. 

 Buenos Aires III. 4: 499. 1905. 



Plants elliptic to short-cylindric, grayish green, 6 to 

 7.5 cm. high, 5 to 6 cm. in diameter; ribs 13 to 15, low, 

 rounded; areoles elliptic; spines 7 to 9, subulate, straight, 

 grayish, all radial, somewhat appressed, 1.5 to 2 cm. long; 

 flowers from the upper part of the plant, but not central, 

 4.5 cm. long; inner perianth-segments white; style green; 

 stigma-lobes 13, white; scales on ovary and flower-tube 

 cartilaginous, subspinescent, reflexed at apex; flower-tube 

 with a ring of dense brown hairs near the base within. 



Type locality: Near Cachi, province of Salta, 

 Argentina. 



Distribution: Known only from type locality. 



Of this relationship are flowers collected by A. 

 Dominguez from the Cerro de Macha, Cordoba, Argentina; in these specimens the scales 

 are long, linear, chartaceous, and erect; the flowers are 5 to 6 cm. long; the outer perianth- 

 segments and often the inner have acuminate or mucronate chartaceous tips. (For 

 further discussion see Echinocactus spiniflorus, page 178.) 



Figure 77 is from a photograph contributed by Dr. Spegazzini. 



Fig. 75. Flower of 



Lobivia andalgalensis. 



X0.6. 



Fig. 76. Flower of 



Lobivia grandis. 



X0.6. 



Fig. 77. Lobivia chionanthus. Fig. 78. Lobivia grandis. 



19. Lobivia grandis sp. nov. 



Depressed-globose to short-cylindric, 2.5 dm. high, bright green; ribs 14 to 16, prominent, 2 cm. 

 high, broad at base, rounded on margin; areoles somewhat depressed, circular, 2 to 3 cm. apart, 

 white-felted when young; spines 10 to 15, yellow with brown tips, acicular to slender-subulate, 

 elongated, 6 to 8 cm. long; flowers lateral, straight, 6 cm. long, with a stout funnelform tube 2 cm. 

 thick and a rather small limb; inner perianth-segments ovate, acuminate, subulate-tipped, 1.5 cm. 



