Pilosocereus brooksianus

Last updated

Pilosocereus brooksianus
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Pilosocereus
Species:
P. brooksianus
Binomial name
Pilosocereus brooksianus
(Britton & Rose) Byles & G.D.Rowley [1]
Synonyms [1]
  • Cephalocereus brooksianusBritton & Rose
  • Cereus brooksianus(Britton & Rose) Vaupel
  • Pilocereus brooksianus(Britton & Rose) F.M.Knuth
  • Pilosocereus royenii subsp. brooksianus(Britton & Rose) Guiggi

Pilosocereus brooksianus is a species of flowering plant in the cactus family Cactaceae, endemic to Cuba. [1] It was first described in 1912 by Nathaniel Lord Britton and Joseph Nelson Rose as Cephalocereus brooksianus. [2]

Contents

Description

Pilosocereus brooksianus has bluish to glaucous green stems with 8–10 ribs. It has more-or-less upright branches. The areoles have rigid spines up to 3 cm (1.2 in) long. Flowering areoles have dense tufts of silky hairs up to 5 cm (2.0 in) long; non-flowering areoles have few or no such hairs. The flower is 5–7 cm (2.0–2.8 in) long. The outer perianth segments are greenish, the inner ones white. The fruit is glaucous blue-green. [3]

Taxonomy

Pilosocereus brooksianus was first described in 1912 by Nathaniel Lord Britton and Joseph Nelson Rose as Cephalocereus brooksianus. [2] The specific epithet brooksianus honours Theodore Brooks, the British consul in Guantánamo in the late 1800s and early 1900s. Some treatments of Pilosocereus in the Caribbean have used relatively few taxa, interpreting species such as P. polygonus and P. robinii broadly, with P. brooksianus as a synonym of one of these two. However, P. polygonus can be distinguished by the lack of bluish or glaucous stems and fruits and P. robinii by the absence of silky hairs. [3]

Distribution

Pilosocereus brooksianus is endemic to Cuba. [1] It is found in southeastern Cuba, the provinces of Guantánamo and Santiago de Cuba. [3]

References

  1. 1 2 3 4 "Pilosocereus brooksianus (Britton & Rose) Byles", Plants of the World Online , Royal Botanic Gardens, Kew , retrieved 2025-06-11
  2. 1 2 "Pilosocereus brooksianus (Britton & Rose) Byles", The International Plant Names Index , retrieved 2025-06-11
  3. 1 2 3 Franck, Alan R.; Barrios, Duniel; Campbell, Keron C. St. E.; Lange, James; Peguero, Brígido; Santiago-Valentín, Eugenio; Rigerszki, Zoltán; Haakonsson, Jane; Gann, George D.; Cinea, William; Howe, Natalie M. M.; St. John, James; Moreno, Juan Sebastián & Clark, Cynthia A. (2019), "Revision of Pilosocereus (Cactaceae) in the Caribbean and northern Andean region", Phytotaxa, 411 (3): 129–182, doi:10.11646/phytotaxa.411.3.1
This page is based on this Wikipedia article
Text is available under the CC BY-SA 4.0 license; additional terms may apply.
Images, videos and audio are available under their respective licenses.