Coryphantha elephantidens Lemaire Lemaire 1868

elephant's tooth, starry ball

Mammillaria elephantidens Lemaire 1838

Mammillaria recurvispina de Vriese 1839, Coryphantha recurvispina

(deVriese) L. Bremer 1976 Mammillaria bumamma Ehrenberg 1849, Coryphantha bumamma

(Ehrenberg) Britton & Rose 1923 Coryphantha greenwoodii Bravo 1970 Coryphantha garessii L. Bremer 1980

Plants solitary or forming large clumps. Stems depressed globose, glossy dark green, woolly apically, to 14 cm (5.5 in) high, 8-20 cm (3.1-7.9in) in diameter. Tubercles very large, thick, stout, more or less rounded, deeply furrowed, axils densely woolly. Central spines absent. Radial spines 6-8, stout, curving, awl shaped, spreading, yellowish with brown tips, to 20 mm (0.8 in) long. Flowers deep purplish pink or white with reddish throats and midveins, 8-10 cm (3.1-3.9 in) in diameter. Distribution: Michoacan and Morelos, Mexico.

Coryphantha erecta (Lemaire ex Pfeiffer) Lemaire 1869 Mammillaria erecta Lemaire ex Pfeiffer 1837

Plants branching basally to form clumps. Stems cylindrical, vivid green, to 50 cm (20 in) high, 5-8 cm (2-3.1 in) in diameter. Tubercles loosely arranged, conical, to 8 mm (0.3 in) long, axils with white wool and yellow glands. Central spines 2, rarely 4, yellowish brown, downward pointing, to 20 mm (0.8 in) long. Radial spines 8-13, spreading, straight, awl shaped, golden brown, to 12 mm (0.5 in) long. Flowers short funnelform, nearly rotate, yellow, 5-6 cm (2-2.4 in) long, to 7.5 cm (3 in) in diameter. Fruits cylindrical, green, to 15 cm (5.9 in) long. Distribution: Hidalgo, Guanajuato, and Queré-taro, Mexico.

Coryphantha georgii Boedeker 1931 Coryphantha villarensis Backeberg 1942

Plants solitary, flattened globose, to 4 cm (1.6 in) high and 7 cm (2.8 in) in diameter, covered by spines, with woolly stem tips. Tubercles loosely arranged, conical, to 12 mm (0.5 in) long, axils with wool and glands. Central spines 1-4, rigid, somewhat curved upward, gray, to 20 mm (0.8 in) long. Radial spines 8-9, needle-like, grayish white with dark tips, to 12 mm (0.5 in) long. Flowers cream or white with pale green throats, 2-3.5 cm (0.8-1.4 in) long and in diameter. Distribution: San Luis Potosí, Mexico.

Coryphantha glanduligera Lemaire 1868 Coryphantha bergeriana Boedeker 1929

Plants solitary, club shaped, dark blue-green, to 12 cm (4.7 in) high and 6 cm (2.4 in) in diameter, Taproots thick. Tubercles loosely arranged, conical, to 14 mm (0.6 in) long, axils and furrows with white wool and prominent glands. Central spines 3-4, awl shaped, whitish or gray, with reddish tips, lower one curved inward and 10-20 mm (0.4-0.8 in)

long, upper ones diverging and to 12 mm (0.5 in) long. Radial spines 15-20, needle-like, rigid, gray to white, 9-17 mm (0.4-0.7 in) long. Flowers yellow, to 4 cm (1.6 in) long and 7 cm (2.8 in) in diameter. Fruits large, green. Distribution: San Luis Potosí, Zacatecas, Guanajuato, Nuevo León, and Tama-ulipas, Mexico.

Coryphantha erecta
Coryphantha elephantidens Coryphantha georgii Coryphantha glanduligera

Coryphantha glassii Dicht & A. D. Lüthy 2000

Plants usually branching from large underground stems and forming clusters of several stems to 50 cm (20 in) across. Stems cylindrical, bright green, to 30 cm (12 in) high and 6 cm (2.4 in) in diameter. Tubercles conical to cylindrical, to 14mm (0.6 in) long, axils with wool when young, and glands. Central spines 2-3, one dominant and pointing somewhat downward, straight, yellowish brown to horn colored, 16-25 mm (0.6-1 in) long. Radial spines 10-13, more or less erect, yellowish white, to 8 mm (0.3 in) long. Flowers bright yellow, to 3.5 cm (1.4 in) long and 3 cm (1.2 in) in diameter. Fruits olive green, globose, to 10 mm (0.4 in) long and 8 mm (0.3 in) in diameter. Distribution: Guanajuato and San Luis Potosí, Mexico.

Coryphantha gracilis L. Bremer &A. B. Lau 1977

Plants usually solitary, occasionally branching. Stems flattened globose to globose, pale gray-green to grass green, 3.5-10.5 cm (1.4-4.1 in) high, 2.5-5 cm (1-2 in) in diameter. Tubercles conical, slightly curved, to 9 mm (0.4 in) long, axils without wool or glands. Central spines 0-2, erect, flattened against the stem, dull white to pale yellow to brown, 8-11 mm (0.3-0.4 in) long. Radial spines 12-17, tightly flattened against the stem surface, whitish to yellowish brown, 5-11 mm (0.2-0.4 in) long. Flowers very pale yellow, glossy, 2.2-3 cm (0.9-1.2 in) long, 3.5-5 cm (1.4-2 in) in diameter. Fruits pale green, globose, not very juicy, 10-15 mm (0.4-0.6 in) long. Distribution: Chihuahua, Mexico.

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