Chilocardamum
| Chilocardamum | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Brassicales |
| Family: | Brassicaceae |
| Tribe: | Thelypodieae |
| Genus: | Chilocardamum O.E.Schulz[1] |
| Synonyms[2] | |
| |
Chilocardamum is a small genus of four herbaceous cress-like species of plants in the family Brassicaceae, only found growing in Patagonia, southern Argentina.
Taxonomy
[edit]It was first described in 1924 by the German botanist Otto Eugen Schulz.[1] The first known species, Ch. patagonicum, was initially classified as a Sisymbrium by Carlo Luigi Spegazzini in 1897.[3][4] The other three species were more recently moved to this genus from Sisymbrium by the Iraqi botanist Ihsan Ali Al-Shehbaz, when he resurrected the genus in 2006.[5] Dimitria was a monotypic genus created by the Chilean botanist Pierfelice Ravenna to house Ch. onuridifolium in 1972;[6] now considered a synonym of the genus Chilocardamum,[2] it was already synonymised with Sisymbrium by the Argentine botanist M. C. Romanczuk in 1981.[6]
Description
[edit]Chilocardamum is quite similar in fruit and flower to Zuloagocardamum and Weberbauera. It is distinguished by having trichomes which are branched and dendritic, rarely with a few simple trichomes in the indumentum, the basal leaves are sessile and linear or awl-shaped, the stems are elongated and have cauline leaves, the inflorescence is an ebracteate raceme which is longer than the basal leaves, and seeds without mucilage. The fruit are non-curved, linear siliques which are not torulose.[7]
Distribution
[edit]The genus is endemic to southern Argentina.[2][3]
Species
[edit]As of 2017, the four species accepted in the Plants of the World Online database, and in the Flora del Conosur, are:[2][3]
- Chilocardamum castellanosii (O.E.Schulz) Al-Shehbaz
- Chilocardamum longistylum (Romanczuk) Al-Shehbaz
- Chilocardamum onuridifolium (Ravenna) Al-Shehbaz
- Chilocardamum patagonicum (Speg.) O.E.Schulz
References
[edit]- ^ a b "Chilocardamum O.E.Schulz". International Plant Names Index. The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries and Australian National Botanic Gardens. Retrieved 21 October 2020.
- ^ a b c d "Chilocardamum O.E.Schulz". Plants of the World Online. Royal Botanic Gardens, Kew. 2017. Retrieved 21 October 2020.
- ^ a b c "Búsqueda rápida de Géneros - Chilocardamum". Flora del Conosur (in Spanish). Instituto de Botánica Darwinion. Retrieved 21 October 2020.
- ^ "Sisymbrium patagonicum Speg". International Plant Names Index. The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries and Australian National Botanic Gardens. Retrieved 21 October 2020.
- ^ Al-Shehbaz, Ihsan Ali (4 December 2006). "The genus Sisymbrium in South America, with synopses of the genera Chilocardamum, Mostacillastrum, Neuontobotrys, and Polypsecadium (Brassicaceae)". Darwiniana. 44 (2): 343–344. ISSN 0011-6793. Retrieved 21 October 2020.
- ^ a b "Dimitria onuridifolia". International Plant Names Index. The Royal Botanic Gardens, Kew, Harvard University Herbaria & Libraries and Australian National Botanic Gardens. Retrieved 21 October 2020.
- ^ Salariato, D. L.; Al-Shehbaz, Ihsan Ali (2014). "Zuloagocardamum (Brassicaceae: Thelypodieae) a New Genus from the Andes Highlands of Northern Argentina". Systematic Botany. 39 (2): 563–577. doi:10.1600/036364414X680898. hdl:11336/100994. S2CID 85386273. Retrieved 21 October 2020.