Schlumbergera truncata

Description:
Phylloclades flattened, 6 cm long and 3.5 cm wide, apical and marginal with forward pointing teeth.
Flowers with a well-developed perianth-tube, zygomorphic, up to 7 cm long, white, rose, red or purple with all intermediates, self-sterile.
Fruit pear-shaped; pinkish to reddish, not ribbed.
Flowering period in northern hemisphere: October-November.

First description:
Link, J.H.F. (822): Enumeratio Plantarum Horti Regii Berolinensis Altera 2: 24.

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Origin of the name:
truncatus (lat.) = for the truncate stem segments.

Occurence:
Brazil (Rio de Janeiro), in altitudes between 250 and 1300 m elevation.

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Synonyms:

(for more informations about some synonyms, click the link)

Epiphyllum truncatum Haworth (1819)
Cereus truncatus (Haworth) Sweet (1826)
Epiphyllum altensteinii Pfeiffer (1837)
Epiphyllum truncatum altensteinii (Pfeiffer) Lemaire (1839)
Epiphyllum purpurascens Lemaire (1841)
Epiphyllum ruckeri Paxton (1846)
Zygocactus altensteinii (Pfeiffer) K. Schumann (1890)
Zygocactus truncatus (Haworth) K. Schumann (1890)
Epiphyllum delicatum E. Brown (1902)
Zygocactus delicatus (N. E. Brown) Britton & Rose (1913)
Epiphyllum truncatum var. wagneri Roland-Gosselin ex Guillaumin (1932)
Zygocactus truncatus altensteinii (Pfeiffer) Borg (1937)
Zygocactus truncatus delicatus (N. E. Brown) Borg (1937)
Schlumbergera truncata altensteinii (Pfeiffer) Moran (1953)
Schlumbergera truncata candida (N. E. Brown) Moran (1953)

Historical Clonal Descriptions:

A11 Clone – Flower is carmine-red with light-colored silvery tube.

Abendroth No. 2 – T/Mallow (Beetroot). Brazil. Adda Abendroth. Petals are a deep rose color, RHS 71B with white in the throat. Large flower. Illustrated in Ashingtonia 1(12): 139. (1975).
Ref.: McM&H 1995: 101; Bockemühl, J. & Bauer, R. in EPIG 70: 27. (2012).

Abendroth No. 4– TB/Carmine-red. England. Holly Gate Nursery. Flower is light red, RHS 54A with a whitish tube. Also known as ‘Vivien’.
Ref.: Bockemühl, J. & Bauer, R. in EPIG 70: 27. (2012).

Abendroth No. 6 – T/Fuchsia. England. Holly Gate Nursery. Flower color is described as rose. This is also known as ‘Tiefrosa’, which is German for deep rose. It was grown from seed at Holly Gate Nursery. Considered a wild form S. truncata.
Ref.: Bockemühl, J. & Bauer, R. in EPIG 70: 27. (2012); McM&H 1995: 101.

Abendroth No. 13 – TB/Mallow (Beetroot). England. Holly Gate Nursery. No data available. Also known as ‘Jan. King’ or ‘Jan. Beauty’.
Ref.: McM&H 1995: 101 & 109.

Abendroth No. 14 – Dark to light red with white tube.
Ref.: Bockemühl, J. & Bauer, R. in EPIG 70: 27. (2012).

Adda Abendroth – See Abendroth No. 2

Branco – Brazil. (NS) White flowered, possibly the same as S. truncata delicata.
Ref.: McM&H 1995: 104.

Espirito Santo Domingo – Brazil. Does not occur in Espírito Santo state. The name may have originated from Roberto Kautsky who lived in Domingos Martins, Espírito Santo. Flower is a carmine-pink shade.

Ox Clone – Same as Wald bei Teresópolis.

Ruckeri – T/Mallow (Beetroot). England. Paxton (1846). Early truncata. Flower is reddish-purple with a violet center.
Ref.: McM&H 1995: 95.

Serra do Mar – A clone collected from R. Thieken in Brazil. Exact location unknown, may be cultivated material. Deep magenta flowers.

Tiefrosa – See Abendroth No. 6.

Wald bei Teresópolis – From Beatrix Orssich collected in the surroundings of Teresópolis and given to Gertrud Bieri. Different clones numbered 1–4. All have orange flowers.
Ref.: Bockemühl, J. & Bauer, R. in EPIG 70: 27. (2012).

Photos:

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