Gymnocalycium angelae Meregalli 1998

Plants usually solitary. Stems flattened globose, bright to mid-green, shiny, smooth, to 8 cm (3.1 in) high and 10 cm (3.9 in) in diameter. Ribs 7-10, flat, wide, rounded, with cross-furrows, obtuse. Areoles oval. Central spines absent. Radial spines 7, yellowish, becoming gray with darker bases, 15-20 mm (0.6-0.8 in) long. Flowers white with rose red base, to 4 cm (1.6 in) long, 5 cm (2 in) in diameter. Fruits green, to 3 cm (1.2 in) long. Distribution: San Martin department, Corrientes, Argentina.

Gymnocalycium bodenbenderianum 349

Gymnocalycium anisitsii (K. Schumann) Britton & Rose 1922

Echinocactus anisitsii K. Schumann 1900

Echinocactus damsii K. Schumann 1903, Gymnocalycium damsii

(K. Schumann) Britton & Rose 1922 Echinocactus joossensianum Boedeker 1918, Gymnocalycium joossensianum (Boedeker) Britton & Rose 1922 Gymnocalycium griseopallidum Backeberg 1966, not validly published Gymnocalycium damsii var. multiproliferum P.J. Braun 1991, G. anisitsii subsp. multiproliferum (P. J. Braun) P. J. Braun & Esteves 1995

Plants solitary or clustering. Stems globose to short columnar, pale green, often with reddish or violet tints, to 10 cm (3.9 in) or more high and 8 cm (3.1 in) in diameter. Ribs 11 with acute tubercles. Central spine usually absent, sometimes one. Radial spines 5-7, slender, twisted, yellowish to brownish, 1-6 cm (0.4-2.4 in) long. Flowers funnelform, white to rose, to 4 cm (1.6 in) long. Fruits long cylindrical, red, to 2.5 cm (1 in) long and 1 cm (0.4 in) in diameter. Distribution: Brazil, Bolivia, and Paraguay.

Two subspecies of Gymnocalycium anisitsii are recognized. Subspecies anisitsii has white flowers; it occurs in Bolivia and Paraguay. Subspecies multiproliferum has numerous violet-green stems, longer spines, and rose-colored flowers; it occurs in Mato Grosso do Sul, Brazil.

Gymnocalycium baldianum (Spegazzini) Spegazzini 1925 Echinocactus baldianum Spegazzini 1905 Echinocactus sanguiniflorus Werdermann 1932, Gymnocalycium san-guiniflorum (Werdermann) Werdermann 1936

Plants solitary at first, sometimes clustering later. Stems depressed globose, gray-green to blue-green, 4-10 cm (1.6-3.9 in) high, 6-7 cm (2.4-2.8 in) in diameter. Roots tuberous. Ribs 9-11, rounded, divided into tubercles. Spines all radials, 5-7, thin, flattened against the surface, gray or brown, to 1.5

cm (0.6 in) long. Flowers pinkish red to deep red or purple, 3-5 cm (1.2-2 in) long and in diameter. Fruits spindle shaped, dark gray-green. Distribution: Catamarca, Argentina.

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