familyCactaceae
subfamilyCactaceae subfam. Cactoideae
genusEpithelantha
speciesEpithelantha micromeris

Epithelantha micromeris

(Engelmann) F. A. C. Weber ex Britton & Rose

Cact. 3: 93. 1922.

Allan D. Zimmerman, Bruce D. Parfitt
Illustrated
Basionym: Mammillaria micromeris Engelmann Proc. Amer. Acad. Arts 3: 260. 1856 (as Mamillaria)
Treatment appears in FNA Volume 4. Treatment on page 240. Mentioned on page 238.
Revision as of 08:26, 30 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Distribution

Ariz., N.Mex., Tex., Mexico

Discussion

Varieties 2–4 (1 in the flora).

The endemic Mexican taxa have relatively large flowers like those of Epithelantha bokei.

Selected References

None.

Lower Taxa

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Adaxial margin arrangement
cluster +
Appearance shape
cushionlike +
Appendage architecture
arillate +
Appendage pubescence or texture
corky +
Areolar gland presence
absent +
Areole architecture or shape
spiny +
Areole arrangement
separate +
Areole arrangement or shape
elliptic +  and circular +
Areole duration
deciduous +  and persistent +
Areole life cycle
flowering +
Areole presence
absent +
Areole prominence
Conspicuous (Obscure) +
Areole pubescence
woolly +
Areole shape
hourglass--shaped +
Author
Allan D. Zimmerman +  and Bruce D. Parfitt +
Authority
(Engelmann) F. A. C. Weber ex Britton & Rose +
Bark pubescence or texture
woodlike +
Bark texture
hardened +
Base position relational
surrounding +
Basionyms
Mammillaria micromeris +
Bract architecture or shape
leaflike +
Bract presence
absent +
Bract shape
triangular +
Cell-wall orientation
anticlinal +
Cell-wall prominence
not protruding +
Central spine arrangement
radial +
Chain architecture
sessile +
Chain architecture or shape
symmetric +
Chain life cycle
proliferating +
Chain orientation
arising +
Chamber architecture
open +
Cladode length or size
long +
Cladode shape
flattened +  and cylindric +
Cortex coating
not mucilaginous +
Cortex width
thick +
Distribution
Ariz. +, N.Mex. +, Tex. +  and Mexico +
Epidermis arrangement
not separating +
Epidermis condition
intact +
Floral remnant duration
deciduous +
Flower architecture
sessile +
Flower architecture or arrangement or growth form
solitary +
Flower architecture or shape
symmetric +
Flower arrangement
arranged +
Flower depth
deep +
Flower duration
diurnal +
Flower length or size
long +
Flower prominence
inconspicuous +
Flower quantity
1 +
Flower reproduction
bisexual +
Flower shape
tubular +, urceolate +  and salverform +
Flower tube atypical some measurement
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Flower tube fusion
adnate +
Flower tube position
epigynous +
Flower tube prominence
conspicuous +
Flower tube some measurement
0.2 cm2 mm <br />0.002 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Fruit architecture
spineless +
Fruit architecture or pubescence or relief
smooth +
Fruit architecture or shape
berrylike +
Fruit atypical width
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Fruit coloration
bright red +
Fruit condition
drying +
Fruit dehiscence
indehiscent +
Fruit duration
persistent +, long +  and deciduous +
Fruit length
0.3 cm3 mm <br />0.003 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Fruit length or size
long +
Fruit shape
cylindric +
Fruit texture
papery +  and succulent +
Fruit width
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Glochid presence
absent +
Hair density
dense +
Illustration copyright
Flora of North America Association +
Illustrator
John Myers +
Inflorescence derivation
true +
Inner tepal atypical length
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Inner tepal atypical width
0.23 cm2.3 mm <br />0.0023 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Inner tepal coloration
Pink (?) +  and White (?) +
Inner tepal length
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Inner tepal shape
petal-like +
Inner tepal width
1mm;2.3mm +
Leaf architecture
sessile +
Leaf arrangement
alternate +
Leaf duration
deciduous +  and persistent +
Leaf presence
absent +
Leaf prominence
rudimentary +
Leaf shape
flat +  and terete +
Leaf size
nearly +  and microscopic +
Leaf some measurement
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Long-shoot architecture or pubescence or relief
smooth +
Long-shoot relief
tuberculate +
Long-shoot shape
fluted;spheric;depressed-spheric or club-shaped +
Margin architecture or shape
entire +
Margin shape
erose-denticulate +
Nectary prominence
apparent +
Number of lower taxa
1 +
Outer tepal architecture or shape
sepal-like +
Outer tepal shape
Erose-fimbriate (?) +  and Entire (?) +
Ovary architecture or pubescence or relief
smooth +
Ovary derivation
true +
Ovary position relational
surrounding +
Ovary prominence
sunken +
Perianth duration
deciduous +  and persistent +
Perianth position
epigynous +
Pistil architecture
compound +
Pistil architecture or structure in adjective form
1-locular +
Pith coating
not mucilaginous +
Placenta arrangement
parietal +
Placenta atypical quantity
14 (20) +
Placenta quantity
3;14 +
Portion architecture or shape
spiny +
Portion arrangement
separated +
Portion length
0.6 cm6 mm <br />0.006 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Portion life cycle
flowering +
Portion position or shape
distal +
Portion prominence
visible +
Portion width
0.3 cm3 mm <br />0.003 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Protuberance fusion
coalescent +
Protuberance shape
ridgelike +  and nipple--shaped +
Publication title
Cact. +
Publication year
1922 +
Pulp presence
absent +
Reference
None +
Rib atypical quantity
30 (40) +
Rib orientation
vertical +
Rib quantity
3;2;2;30 +
Rib short-shoot architecture or shape
barbed +
Rib short-shoot size
minute +
Root density
diffuse +
Scale architecture or shape
leaflike +
Scale presence
absent +
Scale shape
triangular +
Scale size
small +
Seed architecture
arillate +  and strophiolate +
Seed architecture or coloration or relief
impressed-reticulate +
Seed atypical quantity
0 (5) +
Seed coloration
blackish +
Seed diameter
0.4mm;12mm +
Seed length
0.12 cm1.2 mm <br />0.0012 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
Seed quantity
1;3000 +
Seed reflectance
glossy +
Seed shape
hemispheric +
Seed some measurement
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Seed width
1 cm10 mm <br />0.01 m <br /> (?) +
Segment duration
persistent +
Segment fragility
detachable +
Series quantity
1;5 +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V4/V4 436.xml +
Special status
Illustrated +
Spine architecture
bristlelike +
Spine architecture or pubescence or relief
smooth +
Spine architecture or shape
ribbonlike +
Spine coloration
white +  and ashy gray +
Spine coloration or pubescence or relief
striate +
Spine course
straight +
Spine duration
deciduous +  and persistent +
Spine fixation or orientation
appressed +
Spine fragility
pliable +
Spine height or length or size
shorter +
Spine orientation
erect +
Spine presence
absent +
Spine prominence
not distinguishable +
Spine pubescence
glabrous +
Spine pubescence or relief
rough +
Spine quantity
20 (?) +  and 90 (?) +
Spine relief
roughened +  and smooth +
Spine shape
terete +
Spine size
Slender (?) +
Spine some measurement
0.45 cm4.5 mm <br />0.0045 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Spine texture
hard +  and rigid +
Spine toxicity
innocuous +
Stamen quantity
50;1500 +
Stamen shape
decurrent +
Stem apex life cycle
mature +
Stem apex pubescence
woolly +
Stem architecture
unsegmented +
Stem atypical length
4cm (6cm) +
Stem atypical width
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Stem length
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Stem shape
flat-topped +  and spheric +
Stem texture
succulent +
Stem width
2cm;4cm +
Stigma lobe atypical quantity
4 (6) +
Stigma lobe coloration
white +
Stigma lobe quantity
3;4 +
Stigma lobe some measurement
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Stipule presence
absent +
Style quantity
1 +
Surface architecture or shape
ribbed +
Surface prominence
obscured +
Surface relief
tuberculate +
Surface texture
woody +
Taproot architecture
adventitous +
Taproot derivation
adventitious +
Taproot shape
tuberlike +
Taxon family
Cactaceae +
Taxon habitat
epipetric +  and epiphytic +
Taxon name
Epithelantha micromeris +
Taxon parent
Epithelantha +
Taxon rank
species +
Tepal quantity
5;50 +
Testa cell shape
convex +  and flat +
Testa reflectance
dull +  and glossy +
Tubercle arrangement
not confluent +
Tubercle fusion
distinct +
Tubercle presence
absent +
Tubercle quantity
Numerous (?) +
Tubercle shape
cylindric +, short +  and hemispheric +
Tubercle size
small +
Tubercle some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Volume
Volume 4 +
Whole organism architecture
unbranched +
Whole organism architecture or arrangement or growth form
solitary +
Whole organism duration
perennial +
Whole organism growth form
plant +
Whole organism habitat
epiphytic;epiphytic;epiphytic +
Whole organism height or length or size
short +
Whole organism location
not deep-seated +
Whole organism orientation
erect +
Whole organism shape
barrel-shaped +  and spheric +
Whole organism size
miniature +
X chromosome quantity
11 +