Selenicereus
Habit | cacti-succulent
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Lifespan: | ⌛ | perennial |
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Moonlight cacti or (genus Selenicereus) is a poorly defined cactus genus found in Central America, the Caribbean and northern South America.
Clambering plants with flat to angled stems, producing aerial roots. Areoles may be with or without spines. Flowers are large and nocturnal, pollinated by moths or rarely bats. The receptacle bears small bracts, hairs and usually spines. Fruits bear numerous spines.
ExpandRead about Selenicereus in the Standard Cyclopedia of Horticulture
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Cultivation
Propagation
Pests and diseases
Species
Mexico. Stems like those of Epiphyllum anguliger but more vining and with short spines. Flowers ca. 12 cm long, 10–15 cm wide, the outer inner tepals purplish, the inner cream.
- Selenicereus atropilosus
Mexico. Flowers 12 cm long, receptacle with black hairs. The species is close to some species in the genus Weberocereus
- Selenicereus chrysocardium
Mexico. Stems deeply lobed, ca. 28 cm wide. Flowers 32–38 cm long, 23–30 cm wide, base of receptacle very spiny. The species is close to the genus Epiphyllum.
Jamaica, Cuba; Guatemala, Honduras, Nicaragua. Stems many-ribbed. Flowers 18 cm long, receptacle densely woolly. Three subspecies are recognized:
ssp. grandiflorus
ssp. donkelaarii - Mexico. Stems 1 cm thick, low-ribbed, spines short, appressed to stem. Flowers 18 cm long.
ssp. hondurensis- Honduras? Stem ribs tubercled. Flowers 30–34 cm long.
The following species are very closely related to each other and possibly better treated as synonymous taxa or subspecies:
- Selenicereus boeckmannii
Cuba, Haiti, Dominican Republic, Mexico. Flowers 24–39 cm long. Close to S. pteranthus.
- Selenicereus brevispinus
Cuba. Spines less and 1 mm long. Flowers 25 cm long. A shortspined S. grandiflorus.
- Selenicereus coniflorus
Mexico. Stems thick, usually with 5-6 ribs, spines to 1,5 cm long. Flowers 22–25 cm long. A long spined S. pteranthus or few ribbed S. grandiflorus.
- Selenicereus hallensis
Colombia? Only known in cultivation and possibly a hybrid with S. macdonaldiae and some other "species".
- S. urbanianus
Cuba, Haiti, Dominican Republic. Stems 4-5-ribbed, flowers 20–30 cm long.
- Selenicereus hamatus - Mexico. Stems 3-4-ribbed, with knobby projections, nearly spineless. Flowers 20–25 cm long, receptacle with black hairs.
- Selenicereus inermis - Venezuela, Colombia. Stems 2-5-ribbed, almost spineless. Flower 15 cm long, spiny, hairless. The following species are probably best treated as synonymous or subspecies of S. inermis:
- Selenicereus rubineus - Mexico. Stems 4-5-ribbed. Flowers 18 cm. wide, 18–19 cm long, inner and outer inner tepals flushed ruby-red near base.
- Selenicereus wercklei - Costa Rica. Stem with 6-12 low ribs. Flower 15–16 cm long, spiny, hairless.
- Selenicereus murrillii
Mexico. Stems only 8 mm thick, nearly spineless. Flowers 15 cm long, spiny, hairless. Closely related to S. spinulous and S. inermis (sensu lat.).
Two forms are recognized.
- f. macdonaldiae - Honduras? Stem ribs tubercled. Flowers 30–34 cm long.
- f. pteranthus - Mexico. Stems thick, 4-5-ribbed, spines very short. Flowers 25–30 cm long.
- Selenicereus spinulosus - Texas, Mexico. Stems short-spined. Flowers 8–14 cm long, receptacle spiny, hairless.
- Selenicereus vagans. Mexico. Flower 15 cm long, receptacle spiny, hairless.
- Selenicereus nelsonii. Mexico. Flowers 20 cm long, receptacle hairless, spiny. Probably conspecific with S. vagans.
- Selenicereus validus - Michoacan, huge nocturnal flowers with bright red fruits. (Mesa Gardens 1244.5936)
Gallery
References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Selenicereus. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
- Selenicereus QR Code (Size 50, 100, 200, 500)