Mammillaria Haw.
  • Syn. Pl. Succ. 177–178. 1812.
  • Pincushion, globe cactus, chilita [Latin mamilla, nipple, in reference to shape of tubercles, which produce "milky" white latex in some species]


Cite taxon page as 'WFO (2020): Mammillaria Haw. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-4000022997. Accessed on: 03 Dec 2020'

General Information

Plants mostly erect (rarely decumbent or prostrate), branched or unbranched, deep-seated in substrate or not. Roots diffuse or taproots (adventitious from offsets in M. thornberi and M. prolifera). Stems unsegmented, green to gray-green, sometimes purplish under stress, spheric to cylindric or turbinate, often flat-topped, 1-15(-25) × 1.8-12(-20) cm, firm or flaccid; tubercles distinct, not confluent into ribs, pyramidal, conic, or cylindric, 3-25 × 2-9 mm; areoles of 2 kinds: vegetative areoles (spine clusters) at tips of tubercles; reproductive areoles in axils of tubercles, woolly, bristly, or naked; areolar glands absent; cortex and pith usually not mucilaginous, instead containing latex (absent in M. grahamii). Spines [2-]5-80(-90) per areole, of every color that cactus spines can be, hairlike, bristlelike, or needlelike, glabrous or plumose, (0.5-)2-25(-31) × 0.01-0.6 mm; radial spines (6-)10-80 per areole, straight to curved or crinkly bristles, (0.6-)3-25 mm; central spines 0-several (indefinitely numerous and intergrading with radial spines in M. lasiacantha), straight, curved, or hooked, terete. Flowers diurnal, in ring distant from stem apex (or nearly apical at anthesis forming a ring around new growth, subsequent apical growth displacing fruits even farther away from apex), in axils of tubercles, unconnected to spine clusters, funnelform, campanulate, or rotate, 0.9-4(-5.2) × 0.6-3.5(-7.5) cm; outer tepal margins entire or fringed; inner tepals yellow, white, rose-pink, magenta, or maroon, 4-30 × 1.5-8.5 mm; ovary lacking scales and spines; stigma lobes cream, yellow, red, pink, or brownish green, 0.3-8 mm. Fruits indehiscent, usually pink, bright red, or greenish, green and barrel-shaped when seeds mature, sometimes becoming colored and clavate or cylindric to ovoid, 5-30(-40) × (2-)4-9(-26) mm, usually juicy; scales and spines absent (or rudimentary); floral remnant persistent to quickly deciduous. Seeds black, brown, reddish, or yellowish (with tan, corky strophioles in M. tetrancistra), 0.8-1.5 × 0.6-1.4 mm, usually pitted or raised-reticulate (with additional wrinkling in M. tetrancistra) [impressed-reticulate M. candida of Mexico], often shiny; testa cells flat to concave, walls straight to sinuate. x = 11.

  • Provided by: [D].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    MAMMILLARIA Haw.

    Tallos cortos, solitarios o agrupados, erectos o decumbentes, globosos a cortamente cilíndricos, tuberculados, látex presente en algunas especies; espinas pocas a numerosas, frecuentemente las radiales y centrales dimorfas; aréolas floreciendo en las axilas de los tubérculos. Flores generalmente pequeñas, regulares, campanuladas; tubo receptacular corto, desnudo; partes del perianto patentes. Frutos carnosos, secándose después de madurar, indehiscentes; semillas negras o cafés.

    Un género con 250 especies distribuidas desde el suroeste de los Estados Unidos hasta Nicaragua, Colombia, Venezuela y las Antillas, más abundante en México; 2 especies se conocen en Nicaragua.

    R. Craig. The Mammillaria Handbook. 1945.

  • Provided by: [C].Flora de Nicaragua
    • Source: [
    • 2
    • ]. 

    Literature

    SELECTED REFERENCES

    Craig, R. T. 1945. The Mammillaria Handbook....Pasadena. Hunt, D. R. 1987. A New Review of Mammillaria Names. Botley. [Reprinted from Bradleya 1-5, 1983-1987.] Pilbeam, J. 1981. Mammillaria: A Collector’s Guide. London. Reppenhagen, W. 1989. Die Gattung Mammillaria nach dem heutigen Stand meines Wissens, 1988. Frankenthal.

  • Provided by: [D].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    Included Species

    Other Local Names

    NameLanguageCountry
    Pincushion, globe cactus, chilita [Latin mamilla, nipple, in reference to shape of tubercles, which produce "milky" white latex in some species]

     Information From

    Cactaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    MBG Floras Images
    http://www.tropicos.org/ImageSearch.aspx
    Flora images. Missouri Botanical Garden. Accessed on Jun. 2018.
    • B Missouri Botanical Garden
    Flora de Nicaragua
    http://www.tropicos.org/projectwebportal.aspx?projectid=7&pagename=Home&langid=66
    WD Stevens, CU Ulloa, A Pool and OM Montiel. Missouri Botanical Garden Press, 2001
    • C Missouri Botanical Garden
    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • D Flora of North America Association
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • E CC0 1.0 Universal (CC0 1.0).