: Ramos Arispe, Coahuila, Mexico.

• Epithelantha micromeris f. elongata (Backeb.) Bravo
• Epithelantha pachyrhiza subs. elongata (Backeb.) D.Donati & Zanov.
• Epithelantha pachyrhiza var. elongata Backeb.

• Epithelantha micromeris (Engelm.) F.A.C.Weber in Bois
• Cactus micromeris (Engelm.) Kuntze
• Cephalomamillaria micromeris (Engelm.) Frič
• Echinocactus micromeris (Engelm.) F.A.C.Weber in Bois
• Mammillaria micromeris Engelm.
• Epithelantha micromeris var. caespitosa Y.Itô
• Epithelantha micromeris f. cristata hort.
• Epithelantha micromeris var. longispina Y.Itô
• Epithelantha micromeris var. neomexicana n.n.
• Epithelantha neomexicana n.n.
• Epithelantha micromeris var. rufispina (Bravo) Backeb.
• Epithelantha greggii var. rufispina (Bravo) Backeb.
• Epithelantha rufispina Bravo
• Epithelantha micromeris var. texensis n.n.
• Epithelantha micromeris var. texensis f. cristata hort.
• Epithelantha micromeris var. typica Croizat

• Epithelantha micromeris var. dickisoniae hort.
• Epithelantha dickisoniae
• Epithelantha greggii var. dikisoniae

• Epithelantha micromeris subs. greggii (Engelm.) N.P.Taylor
• Cactus micromeris var. greggii (Engelm.) J.M.Coult.
• Cephalomamillaria greggii var. greggii (Engelm.) Frič
• Cephalomamillaria micromeris var. greggii cv. Gray Herb. CardCat., Issue 114 (Engelm.) Frič
• Epithelantha greggii (Engelm.) Orcutt
• Epithelantha micromeris var. greggii (Engelm.) Y.Itô
• Mammillaria greggii (Engelm.) Saff.
• Mammillaria micromeris var. greggii Engelm.
• Epithelantha greggii subs. potosina D.Donati & Zanov.
• Epithelantha micromeris var. densispina (Bravo) Backeb.
• Epithelantha densispina Bravo
• Epithelantha greggii var. densispina (Bravo) Backeb.

• Epithelantha micromeris subs. greggii f. cristata
• Epithelantha greggii f. cristata

• Epithelantha micromeris subs. pachyrhiza (W.T.Marshall) N.P.Taylor
• Epithelantha micromeris var. pachyrhiza W.T.Marshall
• Epithelantha pachyrhiza (W.T.Marshall) Backeb.
• Epithelantha micromeris f. elongata (Backeb.) Bravo
• Epithelantha pachyrhiza subs. elongata (Backeb.) D.Donati & Zanov.
• Epithelantha pachyrhiza var. elongata Backeb.

• Epithelantha micromeris subs. polycephala (Backeb.) Glass
• Epithelantha greggii subs. polycephala (Backeb.) D.Donati & Zanov.
• Epithelantha micromeris var. polycephala (Backeb.) Glass & R.A.Foster
• Epithelantha polycephala Backeb.

• Epithelantha micromeris subs. unguispina (Boed.) N.P.Taylor
• Epithelantha micromeris var. unguispina (Boed.) Backeb.
• Epithelantha unguispina (Boed.) D.Donati & Zanov.
• Mammillaria micromeris var. unguispina Boed.
• Epithelantha spinosior
• Epithelantha unguispina subs. huastecana D.Donati & Zanov.

: Epithelantha micromerisSN|12636]]SN|6936]] f. elongata best known as: Epithelantha pachyrhizaSN|12636]]SN|12636]] var. elongata is a different variety with a cylindrical body which is more elongated than Epithelantha micromerisSN|12636]]SN|6936]] and sits directly on a thick turnip-like root. The tip is the same as E. micromeris, while the elongated stem is similar to that of Epithelantha pachyrhizaSN|12636]]SN|12636]] but without a so very thin constriction between the stem and the turnip-like root. It grows quite unlike E. micromeris, in that it at first puts up a thin stem rather akin to Turbinicarpus krainzianusSN|12810]]SN|12810]] ssp. minimus before evidently broadening out to a wider head. Epithelantha pachyrhizaSN|6936]]SN|12636]] var. elongata is quite common in culture, while Epithelantha pachyrhizaSN|12636]]SN|12636]] var. pachyrhiza is quite rare, usually it is possible to find only the variety Epithelantha pachyrhizaSN|6936]]SN|12636]] var. elongata.

: Major references and further lectures
1) Sybille & Klaus Breckwoldt in: "Kakteen und andere Sukkulenten", Volume 55 Steinhart KG, 2004
2) Backbg. - "Cactus", 9:39, 32 und 9:40, 62. 1954

: Although regarded as a choice and difficult plant, in cultivation it is relatively easy, but very slow growing.. These plants need very coarse potting soil that drains well (rot prone).
Waterings should be rather infrequent, to keep the plant compact and not become excessively elongated or unnatural in appearance. If the plant becomes to much tall it will lean on a side because the thin neck cannot support the weight of the stem, to keep the plant erect one could either repot it into a deeper pot and bury part of the neck in gravel to give it some support or one could place a couple of nice stones/rocks either side of it to support it. The only trouble with burying the neck with white spined plants like Epithelantha is that the neck can act like a wick when you water and cause brown staining to the plant, watering from the bottom reduces this somewhat.
Frost Tolerance: Depending on the variety, it will take -5° C (or less) (Temperature Zone: USDA 8-11)
Sun Exposure: It requires strong sun to part sun to develop good spinal growth, but some summer shade in the hottest hours of the day is beneficial. Assure a good ventilation.
Propagation: It can be reproduced both by seeds and cuttings, but it is often grafted because difficult and slow to grow on its own roots. Older specimens shoot tillers from under tubercles, so they can be grafted, which is a much easier way of propagation than sowing. Young seedlings are tiny and they need several years to reach adult size, and require careful watering.