Espostoa

Espostoopsis dybowskii Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Ordo: Caryophyllales

Familia: Cactaceae
Subfamilia: Cactoideae
Tribus: Cereeae
Subtribus: Trichocereinae
Genus: Espostoa
Species: E. blossfeldiorum – E. calva – E. cremnophila – E. frutescens – E. hylaea – E. lanata – E. melanostele – E. mirabilis – E. senilis – E. superba – E. utcubambensis
Source(s) of checklist:

Govaerts, R. et al. 2021. Espostoa in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2021 Apr 22. Reference page.

Name

Espostoa Britton & Rose (1920)

Type species: E. lanata (Kunth) Britton & Rose

Synonyms

Binghamia Britton & Rose, Cactaceae (Britton & Rose) 2: 167. 1920, nom. illeg. non J.Agardh (1894).
Pseudoespostoa Backeb., Cact. J. (Croydon) 1: 52. 1933; Blätt. Kakteenf. 1834: gen. 104. 1934.
Thrixanthocereus Backeb., Blätt. Kakt.-Forsch. 1937: Nachtr. 15 (1937) (1)
Vatricania Backeb., Cact. Succ. J. (US) 22: 154 (1950)

Hybrids

× Espocana P.V.Heath
× Espostingia G.D.Rowley
× Espostocactus Mottram
× Haagespostoa G.D.Rowley
× Weberbostoa G.D.Rowley

Distribution
Native distribution areas:

Continental: Southern America
Regional: Western South America
Ecuador, Peru
Introduced into:
Canary Is.

References: Brummitt, R.K. 2001. TDWG – World Geographical Scheme for Recording Plant Distributions, 2nd Edition
References
Primary references

Britton, N.L. & Rose, J.N. 1920. The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family. Vol. 2. 239 pp. + 39 pl. Carnegie Institution of Washington. BHL PDF Reference page. : 2: 60

Additional references

Govaerts, R.H.A. 2001. World Checklist of Seed Plants Database in ACCESS E-F: 1-50919. [unavailable to the public] Reference page.

Links

Govaerts, R. et al. 2021. Espostoa in Kew Science Plants of the World online. The Board of Trustees of the Royal Botanic Gardens, Kew. Published online. Accessed: 2021 Apr 22. Reference page.
International Plant Names Index. 2021. Espostoa. Published online. Accessed: Apr 22 2021.
Tropicos.org 2021. Espostoa. Missouri Botanical Garden. Published online. Accessed: 22 Apr 2021.
Hassler, M. 2021. Espostoa. World Plants: Synonymic Checklists of the Vascular Plants of the World In: Roskovh, Y., Abucay, L., Orrell, T., Nicolson, D., Bailly, N., Kirk, P., Bourgoin, T., DeWalt, R.E., Decock, W., De Wever, A., Nieukerken, E. van, Zarucchi, J. & Penev, L., eds. 2021. Species 2000 & ITIS Catalogue of Life. Published online. Accessed: 2021 Apr 22. Reference page.
Hassler, M. 2021. World Plants. Synonymic Checklist and Distribution of the World Flora. . Espostoa. Accessed: 22 Apr 2021.
USDA, ARS, Germplasm Resources Information Network. Espostoa in the Germplasm Resources Information Network (GRIN), U.S. Department of Agriculture Agricultural Research Service. Accessed: 2009-Jun-02.
Espostoa – Taxon details on National Center for Biotechnology Information (NCBI).

Vernacular names
suomi: Villakaktukset
русский: Эспостоя, эспостоа

Espostoa is a genus of columnar cacti, comprising 16 species known from the Andes of southern Ecuador and Peru. It usually lives at an altitude of between 800m and 2500m. Its fruit is edible, sweet, and juicy. The genus is named after Nicolas E. Esposto, a renowned botanist from Lima.
Espostoa nana

These candle-like cacti are covered with spines and white hair. Only the older specimens can divide. In adulthood, a cephalium sometimes appears, similar to the Mexican genus Cephalocereus.

They were discovered by Alexander von Humboldt and Aimé Bonpland in the early nineteenth century.

They are appreciated for their decorative qualities due to their white fleece. They can be propagated by seed. For full development they must be planted in the ground. The cultivated specimens very rarely flourish.

Like all cacti, Espostoa requires a sunny location and well-drained soil. But in summer, it appreciates fertilizer and wetter conditions. In winter, it needs a rest[clarification needed], but the temperature must not drop below 12 °C.

Taxonomy
Species list

Espostoa lanata

Cactaceae Espostoa lanata (HBK) Britt & Rose. Photo was taken at Bedugul Botanical Garden, Bali,, Indonesia

Espostoa baumannii
Espostoa blossfeldiorum
Espostoa calva
Espostoa frutescens
Espostoa guentheri
Espostoa huanucoensis
Espostoa hylaea
Espostoa lanianuligera
Espostoa melanostele
Espostoa mirabilis
Espostoa nana F.Ritter
Espostoa ritteri
Espostoa ruficeps
Espostoa senilis
Espostoa superba

Synonyms

The following genera or species have been included in this genus:

Pilocereus dautwitzii
Binghamia Britton & Rose
Pseudoespostoa Backeb.
Thrixanthocereus Backeb.
Vatricania Backeb.

Bibliography

Innes C, Wall B (1995). Cacti' Succulents and Bromaliads. Cassell & The Royal Horticultural Society.
Edward F. Anderson : "The Cactus Family" (2001)