Weberocereus
Weberocereus tunilla
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Hylocereeae
Genus: Weberocereus
Britton & Rose
Type species
Weberocereus tunilla
Species

See text.

Synonyms

Weberocereus is genus of cacti. It produces a green and white flower and is found mainly in Costa Rica and Nicaragua.[1]

Description

The species of the genus Weberocereus grows climbing or hanging, epiphytic or lithophytic. Their shoots, which are round in cross-section, are angular or flattened. The 2 to 5 ribs have lobed or toothed margins on which are small, sparsely spined areoles. The spines are short and bristly or sometimes absent at all.

The bell-shaped to short funnel-shaped flowers that arise on the side of the shoots are mottled pink to yellowish white to green and 3 to 10 centimeters long. They open at night. The areoles on the pericarp and the flower tube are covered with bristly or hairy spines.

The spherical to oblong, fleshy, often bumpy fruits are red or yellow and bristly or glabrous. They contain white or purple flesh. The remainder of the flowers is perennial. The medium-sized, black-brown to black, slightly shiny seeds are oval and almost smooth. They are up to 1.8 millimeters long and 1.2 millimeters wide

Species

As of November 2022, Plants of the World Online accepted eight species:[2]

ImageScientific nameDescriptionDistribution
Weberocereus alliodorus Gómez-Hin. & H.M.Hern.Mexico (Oaxaca)
Weberocereus bradei (Britton & Rose) G.D.RowleyStems flat, ca. 12 cm wide, margins crenate, with small spines. Flowers 5.5–7 cm long, 3.5 cm wide, white, nearly spineless.Costa Rica.
Weberocereus frohningiorum Ralf BauerCosta Rica
Weberocereus glaber (Eichlam) G.D.RowleyMexico to Honduras
Weberocereus imitans (Kimnach & Hutchison)Buxb.Stems flat, lobed as in Epiphyllum anguliger, with small spines. Flowers 6–7 cm long, 3–4 cm wide, base moderately spiny. Costa Rica.
Weberocereus rosei (Kimnach) Buxb.Stems flat, 4–8 cm wide, margins crenate. Flowers 5.5–7 cm long, whitish, the lower half densely spiny.Ecuador.
Weberocereus trichophorus H.Johnson & KimnachStems nearly cylindrical, spiny and densely hairy. Flower 5.5–6 cm long, pinkish.Costa Rica
Weberocereus tunilla (F.A.C.Weber) Britton & RoseStems 4(-6)-angled. Flowers 6–7 cm long, pinkish.Costa Rica.


Some species were transferred to Selenicereus in 2017:[3]

  • Weberocereus alliodorus Gómez-Hin. & H.M.Hern.Selenicereus alliodorus
  • Weberocereus glaber (Eichlam) G.D.RowleySelenicereus glaber
  • Weberocereus tonduzii (F.A.C.Weber) G.D.RowleySelenicereus tonduzii

References

  1. Weberocereus On-line Guide to the positive identification of Members of the Cactus Family
  2. "Weberocereus Britton & Rose - Plants of the World Online". Plants of the World Online. 2020-11-18. Retrieved 2022-11-11.
  3. Korotkova, Nadja; Borsch, Thomas & Arias, Salvador (2017). "A phylogenetic framework for the Hylocereeae (Cactaceae) and implications for the circumscription of the genera". Phytotaxa. 327 (1): 1–46. doi:10.11646/phytotaxa.327.1.1.
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