View source for Mammillaria heyderi var. heyderi

{{Treatment/ID
|accepted_name=Mammillaria heyderi var. heyderi
|accepted_authority=unknown
|publications=
|common_names=Heyder’s nipple cactus
|basionyms=
|synonyms={{Treatment/ID/Synonym
|name=Mammillaria applanata
|authority=Engelmann
}} {{Treatment/ID/Synonym
|name=Mammillaria gummifera var. applanata
|authority=(Engelmann) L. D. Benson
}} {{Treatment/ID/Synonym
|name=Mammillaria gummifera var. hemispherica
|authority=(Engelmann) L. D. Benson
}} {{Treatment/ID/Synonym
|name=Mammillaria heyderi var. applanata
|authority=Engelmann
}} {{Treatment/ID/Synonym
|name=Mammillaria heyderi var. hemispherica
|authority=unknown
}}
|hierarchy=Cactaceae;Cactaceae subfam. Cactoideae;Mammillaria;Mammillaria heyderi;Mammillaria heyderi var. heyderi
|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 heyderi]]</div><div class="higher-taxon"><small>variety</small>[[Mammillaria heyderi var. heyderi]]</div></div>
|volume=Volume 4
|mention_page=page 255
|treatment_page=page 256
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Stems </b>4–9 × 4–10(–15) cm; tubercles 9–20 × 3–7 mm. <b>Spines</b> (8–)14–18(–27) per areole; radial spines (7–)13–17(–26) per areole, abaxial radial spines, needlelike, 6–11(–16) mm diam., stiff; central spines 0.15–0.35 mm diam. <b>Flowers</b> 1.8–2.3 × 1.8–1.9 cm. <b>2n</b> = 22.</span><!--

-->{{Treatment/Body
|phenology=Flowering Mar–Apr; fruiting Aug–Mar.
|habitat=Chihuahuan desert scrub, Tamaulipan thorn scrub, and Edwards Plateau, usually limestone and alluvial substrates
|elevation=10-1400 m
|distribution=N.Mex.;Okla.;Tex.;Mexico (Coahuila;Nuevo León;Tamaulipas).
|discussion=<p>The spines of <i>Mammillaria heyderi </i>var.<i> heyderi</i> are smaller and usually more numerous than those of the other flat-topped mammillarias in the United States. Individual plants with fewer radial spines, often segregated as var. hemispherica, are frequent in populations of <i></i></i>var.<i><i> heyderi</i> near the Texas coast. Sometimes the central spines are very short. The coarse western <i></i></i>var.<i><i> bullingtoniana</i> has a much narrower range of variation. Reports of <i>M. heyderi </i>var.<i> heyderi</i> from southeastern Arizona and southwestern New Mexico are based on <i></i></i>var.<i><i> bullingtoniana</i>.</p>
|tables=
|references=
}}<!--

--><!--

-->{{#Taxon:
name=Mammillaria heyderi var. heyderi
|author=
|authority=unknown
|rank=variety
|parent rank=species
|synonyms=Mammillaria applanata;Mammillaria gummifera var. applanata;Mammillaria gummifera var. hemispherica;Mammillaria heyderi var. applanata;Mammillaria heyderi var. hemispherica
|basionyms=
|family=Cactaceae
|phenology=Flowering Mar–Apr; fruiting Aug–Mar.
|habitat=Chihuahuan desert scrub, Tamaulipan thorn scrub, and Edwards Plateau, usually limestone and alluvial substrates
|elevation=10-1400 m
|distribution=N.Mex.;Okla.;Tex.;Mexico (Coahuila;Nuevo León;Tamaulipas).
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f6b125a955440c0872999024f038d74684f65921/coarse_grained_fna_xml/V4/V4_469.xml
|subfamily=Cactaceae subfam. Cactoideae
|genus=Mammillaria
|species=Mammillaria heyderi
|variety=Mammillaria heyderi var. heyderi
}}<!--

-->[[Category:Treatment]][[Category:Mammillaria heyderi]]