Trichocereinae

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Trichocereinae
Haageocereus pacalaensis.jpg
Haageocereus pacalaensis of the tribe Trichocereeae.
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cereeae
Subtribe: Trichocereinae
Buxb. (1958)
Type genus
Trichocereus
Genera

See text

Trichocereinae is a subtribe of cactus that are particular to South America. [1] There are 28 recognized genera in this subtribe.

Contents

Description

Arborescent to shrubby, Trichocereinae normally form unsegmented, spherical to columnar stems that are usually ribbed, tuberculate, or ribbed-warty.

The small to fairly large, regular or bilaterally symmetrical flowers appear laterally or below the apex and open day or night. The flower cup is scaled or covered with hair.

The fruits are fleshy to berry-like and sometimes burst open lengthwise. They contain small to medium-sized seeds that vary in shape. Hilum and micropyle of seeds are fused to united. Appendages are usually absent. A strophic is present in some. [2]

Genera

The composition of the subtribes of the tribe Cereeae varies. The list below is based on genera accepted by Plants of the World Online as of December 2024. [3] Most were placed in subtribe Trichocereinae by Lendel in 2013. Reicheocactus (listed here) was not included in Lendel's analysis, and was described as basal to the subtribe. [1] Pygmaeocereus was placed in Trichocereinae in a 2023 study. [4]

ImageGenusLiving species
Acanthocalycium violaceum.jpg Acanthocalycium Backeb. 1936
Arthrocereus rondonianus1b.MW.jpg Arthrocereus A.Berger 1929
Cleistocactus icosagonus 2.jpg Borzicactus Riccob. 1909
Echinopsis chamaecereus2.jpg Chamaecereus Britton & Rose 1922
Cleistocactus colademononis (4974876280).jpg Cleistocactus Lem. 1861
Denmoza rhodacantha 1.jpg Denmoza Britton & Rose 1922
Echinopsis oxygona (3535885623).jpg Echinopsis Zucc. 1837
Espostoa melanostele pm02.jpg Espostoa Britton & Rose 1920
Haageocereus versicolor (Madeira).jpg Haageocereus Backeb. 1933
Harrisia cactus Central Queensland 1191.JPG Harrisia Britton 1908 publ. 1909
Lasiocereus F.Ritter
(uncertainly in this subtribe [4] )
Cactus in Ruins of Quilmes.jpg Leucostele Backeb. 1953
Echinopsis subdenudata203.jpg Lobivia Britton & Rose 1922
Cleistocactus acanthurus0001.jpg Loxanthocereus Backeb. 1937
Matucana roseoalba (8913184317).jpg Matucana Britton & Rose 1922
Mila caespitosa.jpg Mila Britton & Rose 1922
  • Mila caespitosaBritton & Rose
Caktus, flowering, SG.jpg Oreocereus Riccob. 1909
Oroya (4877090482).jpg Oroya Britton & Rose 1922
Pygmaeocereus bylesianus1MW.jpg Pygmaeocereus H.Johnson & Backeb.
Rauhocereus riosaniensis pm.jpg Rauhocereus Backeb. 1956 publ. 1957
Xian Ren Zhang -Hei Xie Zi Reicheocactus pseudoreicheanus (Echinopsis famatimensis) -Ri Ben Da Ban Xian Hua Jing Fang Guan Osaka Sakuya Konohana Kan, Japan- (40360118800).jpg Reicheocactus Backeb. 1942
Samaipaticereus corroanus-IMG 3192.jpg Samaipaticereus Cárdenas 1952
Echinopsis mirabilis1UME.jpg Setiechinopsis Backeb. ex de Haas 1940
Golden Torch Cactus blooming - 42350044794.jpg Soehrensia Backeb. 1938
Saulenkaktus Blute.JPG Trichocereus (A.Berger) Riccob. 1909
Fox Tail Cactus (Espostoa guentheri) (34991631493).jpg Vatricania Backeb. 1950
Weberbauerocereus cuzcoensis.jpg Weberbauerocereus Backeb. 1942
Yungasocereus inquisivensis SSZ.jpg Yungasocereus F.Ritter 1980

Intergeneric hybrids

Naturally occurring hybrids between genera in the subtribe include:

Artificial hybrids include:

References

  1. 1 2 Lendel, Anita (2013). South American Cacti in time and space: studies on the diversification of the tribe Cereeae, with particular focus on subtribe Trichocereinae (Cactaceae) (Dr. sc. nat. thesis). University of Zurich. doi:10.5167/UZH-93287 . Retrieved 2023-10-10.
  2. Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. pp. 58–59. ISBN   3-8001-4573-1.
  3. "Cactaceae Juss". Plants of the World Online. The Trustees of the Royal Botanic Gardens, Kew. Retrieved 2024-12-28.
  4. 1 2 Romeiro-Brito, Monique; Taylor, Nigel P.; Zappi, Daniela C.; Telhe, Milena C.; Franco, Fernando F. & Moraes, Evandro M. (2023). "Unravelling phylogenetic relationships of the tribe Cereeae using target enrichment sequencing". Annals of Botany. 132 (5): 989–1006. doi:10.1093/aob/mcad153. PMC   10808018 .
  5. "× Chamaelobivia Y.Itô". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 2023-10-09.
  6. "× Trichopsis Y.Itô". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 2023-10-10.