View source for Mammillaria sphaerica

{{Treatment/ID
|accepted_name=Mammillaria sphaerica
|accepted_authority=A. Dietrich
|publications={{Treatment/Publication
|title=Allg. Gartenzeitung.
|place=21: 94. 1853
|year=1853
}}
|common_names=Longmamma nipple cactus
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Dolichothele sphaerica
|authority=(A. Dietrich) Britton & Rose
|rank=species
}} {{Treatment/ID/Synonym
|name=Mammillaria longimamma var. sphaerica
|authority=(A. Dietrich) K. Brandegee
|rank=variety
}}
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Mammillaria;Mammillaria sphaerica
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Cactaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Cactaceae subfam. Cactoideae]]</div><div class="higher-taxon"><small>genus</small>[[Mammillaria]]</div><div class="higher-taxon"><small>species</small>[[Mammillaria sphaerica]]</div></div>
|volume=Volume 4
|mention_page=page 249
|treatment_page=page 250
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>many branched; branches 10–30(–50). <b>Roots</b> thick taproots, large in upper portion. <b>Stems</b> subspheric, 4–5 × 5–8 cm, soft, flaccid; tubercles 12–25 × 5–8 mm; axils slightly short woolly, without bristles; cortex and pith not mucilaginous; latex absent. <b>Spines</b> 13–15 per areole, whitish to yellowish, glabrous; radial spines 12–14 per areole, gray, bristlelike, 6–9 × 0.1 mm, stiff; central spines 1 per areole, porrect, straight, not hooked or curved, similar to radial spines, 3–6 × 0.25 mm; subcentral spines 0. <b>Flowers</b> 4 × 5–7 cm; outermost tepal margins entire (or minutely toothed near base); inner tepals bright yellow, paler near base, 20–30 × 4.5–8.5 mm; stigma lobes cream to pale yellow, 5–6 mm. <b>Fruits</b> greenish white to dull pinkish tan or maroon, ovoid to short cylindric, 10–15(–20) × 7 mm, juicy throughout; floral remnant weakly persistent. <b>Seeds</b> brown, 1.3 × 0.9 mm, pitted; testa soft or leathery, not hard or brittle; anticlinal cell walls straight to slightly curved; interstices equal or narrower than pit diameters; pits bowl-shaped. <b>2n</b> = 22.</span><!--

-->{{Treatment/Body
|phenology=Flowering Jul; fruiting May.
|habitat=Tamaulipan thorn scrub on plains and low gravelly hills
|elevation=0-300 m
|distribution=Tex.;Mexico (Nuevo León;Tamaulipas).
|discussion=<p>A proposed taxonomic reduction of <i>Mammillaria sphaerica</i> to varietal rank within the geographically disjunct and morphologically distinct Mexican species, M. longimamma, while plausible, has not yet been convincingly justified.</p>
|tables=
|references=
}}<!--

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-->{{#Taxon:
name=Mammillaria sphaerica
|authority=A. Dietrich
|rank=species
|parent rank=genus
|synonyms=Dolichothele sphaerica;Mammillaria longimamma var. sphaerica
|basionyms=
|family=Cactaceae
|phenology=Flowering Jul; fruiting May.
|habitat=Tamaulipan thorn scrub on plains and low gravelly hills
|elevation=0-300 m
|distribution=Tex.;Mexico (Nuevo León;Tamaulipas).
|reference=None
|publication title=Allg. Gartenzeitung.
|publication year=1853
|special status=
|source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_454.xml
|subfamily=Cactaceae subfam. Cactoideae
|genus=Mammillaria
|species=Mammillaria sphaerica
}}<!--

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