Cyrillaceae
| Cyrillaceae | ||||||||||||
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Cyrilla racemiflora with racemose inflorescences in South Carolina |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Cyrillaceae | ||||||||||||
| Lindl. |
The Cyrillaceae are a family of plants within the order of the heather-like (Ericales) with only two monotypical genera , i.e. only two species . They are common in the Neotropic .
description
Vegetative characteristics
They are evergreen or deciduous, small trees or shrubs . The alternate and spirally arranged, short-stalked leaves are simple. The leaf margin is smooth. There are no stipules.
Generative characteristics
The flowers are in terminal or lateral, very long racemose inflorescences .
The very small, fragrant, hermaphrodite flowers are radially symmetrical and five to seven-fold with a double flower envelope (perianth). The five to seven sepals are fused at least at their base. The five to seven white, red, pink or violet petals are fused tubular, the corolla tube is shorter than the corolla lobes. The flowers contain one or two circles with five free, fertile stamens each . Two to five carpels have become a top permanent, syncarp ovary grown. There is a very short stylus with a mostly three-lobed stigma .
The fruits are dry, one to four-seed drupes ( Cyrilla racemiflora ) or two to five-winged wingnuts (Samara) ( Cliftonia monophylla ).
The basic chromosome number is x = 10.
Systematics and distribution
The Cyrillaceae family was established in The Vegetable Kingdom , 445 by John Lindley in 1846 .
The closest related to the Cyrillaceae family is the Clethraceae family . The genus Purdiaea from it was previously assigned to the family Cyrillaceae and reclassified according to phylogenetic knowledge. Some authors had also assigned the genus Clethra to this family.
The two species have areas only in the Neotropics from the southeastern USA to northern South America .
The family Cyrillaceae contains only two genera, each with one species:
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Cyrilla
Garden :
- Cyrilla racemiflora L .: It is from the southeastern US states of Florida , southern Alabama , Georgia , Louisiana , eastern North Carolina , South Carolina , southeastern Virginia and southern Mississippi via the southern Mexican state of Oaxaca to the Central American states to Belize , northeastern Nicaragua as well as Panama and the Caribbean islands of Cuba , Hispaniola , Jamaica , Puerto Rico , Dominica , Guadeloupe , Martinique and St. Vincent and the Grenadines to the South American states of eastern Colombia , southern Venezuela , northern Brazil and Guyana .
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Cliftonia Banks ex CFGaertn. :
- Cliftonia monophylla (Lam.) Britton ex coffin. : It occurs only in the southeastern US state of northern Florida, southern Alabama, southeast Georgia, southeast Louisiana and southern Mississippi.
swell
- The Cyrillaceae family on the AP website . (Sections Description and Systematics)
- The family of the Cyrillaceae at DELTA there with three genera. (Section description)
Individual evidence
- ^ Arne A. Anderberg, Xiaoping Zhang: Phylogenetic relationships of Cyrillaceae and Clethraceae (Ericales) with special emphasis on the genus Purdiaea. In: Organisms Diversity & Evolution , Volume 2, Issue 2, 2002, pp. 127-137. doi: 10.1078 / 1439-6092-00036
- ↑ a b c d Cyrillaceae in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved May 13, 2019.
Web links
- Entries about Cyrillaceae in Plants For A Future . Retrieved March 4, 2014.
Map with all linked sites: