Mammillaria compressa A P de Candolle 1828

MOTHER OF HUNDREDS

Mammillaria conopea Scheidweiler 1838 Mammillaria esseriana Boedeker 1928 Mammillaria tolimensis R. T. Craig 1945 Mammillaria bernalensis Reppenhagen 1989 Mammillaria centralifera Reppenhagen 1989, M. compressa subsp. centralifera (Reppenhagen) D. R. Hunt 1997

Plants solitary at first, later forming massive clumps to 1 m (3.3 ft) wide. Stems club shaped to cylindrical, bluish gray-green, to 20 cm (7.9 in) high, 5-10 cm (2-3.9 in) in diameter. Tubercles close set, firm, bluntly angled, keeled, with latex, axils with wool and bristles. Central spines absent, sometimes 2. Radial spines 4-6, unequal, chalky white with brownish tips, 20-70 mm (0.8-2.8 in) long, some very short. Flowers bell shaped, purplish pink, 10-15 mm (0.4-0.6 in) long. Fruits club shaped, red. Seeds brown. Distribution: Hidalgo, Querétaro, Tamaulipas, and San Luis Potosí, Mexico.

Two subspecies of Mammillaria compressa are recognized. Subspecies compressa tends to form large clumps and has no central spines; it occurs in Hidalgo and Querétaro. Subspecies centralifera often has solitary stems but is sometimes clumping and has 2 central spines; it occurs in Querétaro, Tamaulipas, and San Luis Potosí.

Mammillaria crinita A. P. de Candolle 1828 Ebnerella crinita (A. P. de Candolle) Buxbaum 1951, Chilita crinita (A. P. de Candolle) Buxbaum 1954

Mammillaria columbiana subsp. columbiana, photograph by Keith Grantham

Mammillaria compressa subsp. compressa

WSSM.

Mammillaria criniformis A. P. de Candolle 1834, Chilita criniformis

(A. P. de Candolle) Buxbaum 1954 Mammillaria wildiiA. Dietrich 1836, misapplied; see underM, glochi-diata

Mammillaria schelhasii Pfeiffer 1838, Ebnerella schelhasii (Pfeiffer) Buxbaum 1951

Mammillaria painteri Rose ex Quehl 1917, Ebnerella painteri (Rose ex Quehl) Buxbaum 1951, Chilita painteri (Rose ex Quehl) Buxbaum 1954

Neomammillaria pygmaea Britton & Rose 1923, Mammillaria pygmaea (Britton & Rose) A. Berger 1929, Ebnerella pygmaea (Britton & Rose) Buxbaum 1951, Chilita pygmaea (Britton & Rose) Buxbaum 1954 Mammillaria aurihamata Boedeker 1928, Ebnerella aurihamata (Boedeker) Buxbaum 1951, Chilita aurihamata (Boedeker) Buxbaum 1954

Mammillaria erectohamata Boedeker 1930, Ebnerella erectohamata (Boedeker) Buxbaum 1951, Chilita erectohamata (Boedeker) Buxbaum 1954

Mammillaria pubispina Boedeker 1930, Ebnerella pubispina (Boedeker) Buxbaum 1951, Chilita pubispina (Boedeker) Buxbaum 1954

Mammillaria zeilmanniana Boedeker 1931, Ebnerella zeilmanniana (Boedeker) Buxbaum 1951, Chilita zeilmanniana (Boedeker) Buxbaum 1954

Mammillaria leucantha Boedeker 1933, M. crinita subsp. leucantha

(Boedeker) D. R.Hunt 1997 Mammillaria gilensis Boedeker 1936, Ebnerella gilensis (Boedeker)

Buxbaum 1951, Chilita gilensis (Boedeker) Buxbaum 1954 Mammillaria aureoviridis Heinrich 1937 Mammillaria calleana Backeberg 1951 Mammillaria mollihamata Shurly 1960

Mammillaria monancistracantha Backeberg 1962, not validly published Mammillaria cadereytana Backeberg 1966 Mammillaria nana Backeberg ex Mottram 1980 Mammillaria duwei H. Rogozinski & P. J. Braun 1985, M. nana subsp.

cfuwe/'(H. Rogozinski & P. J. Braun) Pilbeam 1999 Mammillaria variabilis Reppenhagen 1985 Mammillaria brevicrinita Reppenhagen 1987 Mammillaria puberula Reppenhagen 1987 Mammillaria moeller-valdeziana Appenzeller 1988 Mammillaria felipensis Reppenhagen 1989 Mammillaria tezontle W. A. & B. Fitz Maurice 1995 Mammillaria scheinvariana R. Ortega-Varela & Glass 1998, M. crinita subsp. scheinvariana (R. Ortega-Varela & Glass) W. A. & B. Fitz Maurice 1998

Plants solitary and clustering. Stems globose, dark green, 1-8 cm (0.4-3.1 in) high and in diameter. Tubercles not compacted, conical to cylindrical, without latex, some axils with bristles, sparsely woolly. Central spines 0-7, occasionally more, sometimes absent, awl shaped, yellowish to red to dark brown, to 16 mm (0.6 in) long, one or two occasionally hooked. Radial spines 11-32, flattened against the stem sur face to ascending, radiating, usually awl shaped, sometimes hairlike, white to yellow, variably finely pubescent, 6-9 mm (0.2-0.4 in) long. Flowers variable, funnelform, less deep set, yellowish white to white to very pale to pale magenta, rarely magenta, 10-20 mm (0.4-0.8 in) long and in diameter. Fruits globose to ovate, green to bright red. Seeds brownish black, coarsely pitted. Distribution: San Luis Potosí, Zacatecas, Guanajuato, Michoacán, Querétaro, Aguascalientes, and Hidalgo, Mexico. Mammillaria crinita is complex, representing the main eastern phase of Mammillaria series Stylothelae. It is understood only because of extensive fieldwork by W. A. and B. Fitz Maurice (1997b), who believe that three taxa may deserve recognition: subspecies crinita, duweii, and scheinvariana.

Mammillaria crucígera Martius 1832 Mammillaria buchenaui Backeberg 1963 Mammillaria tlalocii Reppenhagen 1989, M. crucígera subsp. tlalocii (Reppenhagen) D. R. Hunt 1997, M. crucígera var. tlalocii (Reppenhagen) Linzenetal. 1998 Mammillaria crucígera var. grandinosa Linzen etal. 1998

Mammillaria crinita, also illustrated on page 35
Mammillaria Cruc Gera
Mammillaria crucígera subsp. crucígera, photograph by Bill Weightman

Plants solitary or forking into two heads. Stems flattened globose to short cylindrical, olive green to gray-green, to 10 cm (3.9 in) high and 5-6 cm (2-2.4 in) in diameter. Tubercles firm, not sharply angled, keeled, with latex in the growing season, axils with sparse white wool. Central spines 4-5, whitish to waxy yellow to brownish black, rigid, to 2 mm long. Radial spines 16-30, finely needle-like or bristly, white, to 2 mm long. Flowers small, funnelform, purplish pink, rarely rising above the spines. Fruits red. Seeds small, brown. Distribution: Oaxaca, Mexico.

Two subspecies of Mammillaria crucígera are recognized. Subspecies crucígera almost always has forked stems, 4-5 yellowish or brown central spines, and 22-30 radials. Subspecies tlalocii usually is single stemmed, has 2-4 whitish central spines, and 16-22 radials.

Mammillaria decipiens Scheidweiler 1838 bird's-nest pincushion

Chilita decipiens (Scheidweiler) Orcutt 1926, Dolichothele decipiens (Scheidweiler) Tiegel 1935, Pseudomammillaria decipiens (Scheidweiler) Buxbaum 1951 Mammillaria albescens Tiegel 1933, Pseudomammillaria albescens (Tiegel) Buxbaum 1951, Dolichothele albescens (Tiegel) Backeberg 1951, M. decipiens subsp.albescens (Tiegel) D. R. Hunt 1997 Mammillaria camptotricha Dams 1968, Dolichothele camptotricha (Dams) Tiegel 1935, Pseudomammillaria camptotricha (Dams) Buxbaum 1951, M. decipiens subsp. camptotricha (Dams) D. R. Hunt 1997

Plants forming dense clusters. Stems globose to club shaped, deep green, to 10 cm (3.9 in) high, 4-7 cm (1.6-2.8 in) in diameter. Tubercles somewhat soft, cylindrical to obtuse, without latex, axils with sparse wool and a few bristles. Central spines 1-2, sometimes absent, slender, needle-like, straight, brown, 18-27 mm (0.7-1.1 in) long. Radial spines

Mammillaria decipiens subsp. camptotricha, photograph by Bill Weightman

5-11, white, sometimes brown tipped, slender, needle-like, sometimes bristle-like, 7-15 mm (0.3-0.6 in) long or as long as 30 mm (1.2 in). Flowers broadly funnelform, white, delicately scented, 15-18 mm (0.6-0.7 in) long. Fruits cylindrical, green with reddish tint. Seeds light brown. Distribution: San Luis Potosí, Guanajuato, and Querétaro, Mexico.

Three subspecies of Mammillaria decipiens are recognized. Subspecies decipiens has 5-11 radial spines that tend to be whitish; it occurs in San Luis Potosí, Guanajuato, and Querétaro. Subspecies albescens has 3-5 radial spines that are generally shorter, straight, and white; it occurs in Guanajuato and Querétaro. Subspecies camptotricha usually has 4-5 radial spines that are bristly and to 30 mm (1.2 in) long; it occurs only in Querétaro.

Mammillaria deherdtiana Farwig 1969 Mammillaria dodsonil Bravo 1970, M. deherdtiana subsp. dodsonii (Bravo) D. R. Hunt 1997

Plants solitary. Stems depressed globose, to 2.5 cm (1 in) high and 5 cm (2 in) in diameter. Tubercles conical, axils slightly woolly or naked. Central spines 1-6, sometimes absent, fine, needle-like, nearly erect, reddish brown to yellow, 3-7 mm (to 0.3 in) long. Radial spines 20-36, fine, needle-like, slightly curved, yellow, becoming white, 3-20 mm (to 0.8 in) long. Flowers long funnelform, bright rose violet, to 50 mm (2 in) in diameter; floral tubes long, to 20 mm (0.8 in). Fruits globose, half embedded in stems, pale green. Seeds dark brown to black. Distribution: Oaxaca, Mexico.

Two subspecies of Mammillaria deherdtiana are recognized. Subspecies deherdtiana has 8-13 spirals of tubercles and 33-36 radial spines only 3—6 mm (to 0.2 in) long. Subspecies dodsonii has only 5-8 spirals of tubercles and 20-21 radial spines as long as 20 mm (0.8 in).

Mammillaria densispina (J. M. Coulter) Orcutt 1926 Cactus densispinus J. M. Coulter 1894, Neomammillaria densispina

(J. M. Coulter) Britton & Rose 1923 Mammillaria buxbaumiana Reppenhagen 1989

Plants usually solitary. Stems globose to short cylindrical, dark green, to 12 cm (4.7 in) high and 6 cm (2.4 in) in diameter. Tubercles firm to flabby, conical, without latex, axils woolly at first, later naked. Central spines 6, straight, rigid, yellow, often with dark tips, 10-15 mm (0.4-0.6 in) long. Radial spines about 25, unequal, rigid, slender, needle-like, spreading, yellow, 8-10 mm (0.3-0.4 in) long. Flowers funnelform, pale yellow, 15-20 mm (0.6-0.8 in) long and in diameter. Fruits greenish pink. Seeds brown. Distribution: San Luis Potosí, Guanajuato, Jalisco, Aguascalientes, Durango, Querétaro, and Zacatecas, Mexico.

Mammillaria ekmanií 415

Continue reading here: Mammillaria dioica K Brandegee 1897

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