Mammillaria morentiniana, Gonz. - Zam., D. Aquino, J. Mohl & Dan. Sanchez, 2022

publication ID	https://doi.org/10.3372/wi.52.52305
persistent identifier	https://treatment.plazi.org/id/03CA683D-FB2B-2E66-2A40-FE0FFA50FB04
treatment provided by	Felipe
scientific name	Mammillaria morentiniana
status

Identification key for Mammillaria morentiniana View in CoL and closest species

1. Central spines pubescent.................... 2

– Central spines glabrous..................... 4

2. Areoles oval; central spines (0 or)1(or 2).. M. nana View in CoL

– Areoles circular; central spines 2–4............ 3

3. Stem (20–)27–34(–39) mm in diam.; roots fibrous...................... M. crinita subsp. crinita View in CoL

– Stem (36–)39–46(–52) mm in diam.; roots tuberous.................. M. crinita subsp. leucantha View in CoL

4. Central spines> 6 (on average)..... M. schwarzii View in CoL

– Central spines ≤ 6 (on average)............... 5

5. Radial spines> 30......................... 6

– Radial spines <30......................... 7

6. Stem> 30 mm in diam.; radial spines tortuous; seeds with perceptible aril.............. M. bocasana View in CoL

– Stem < 30 mm in diam.; radial spines straight; seed aril absent.............. M. crinita subsp. wildii View in CoL

7. Central spines 1–3(or 4), to 23 mm long....................................... M. bocasana View in CoL

– Central spines (3 or)4–6(–8), (3.7–)5–8(–9.4) mm long........................ M. morentiniana View in CoL