Chilocardamum

Life-forms

Classification System: APG IV

Superregnum: Eukaryota
Cladus: Orthokaryota
Cladus: Neokaryota
Cladus: Photokaryota
Cladus: Diaphoretickes
Cladus: CAM
Regnum*: Archaeplastida
Regnum: Plantae
Regnum*: Viridiplantae
Cladus: Streptophyta
Cladus: Phragmoplastophyta
Cladus: Embryophyta
Cladus: Polysporangiophyta
Divisio*: Tracheophyta
Cladus: Eutracheophyta
Cladus: Euphyllophytina
Cladus: Megaphylla
Cladus: Radiatopses
Cladus: Lignophyta
Cladus: Metalignophyta
Diviso*: Spermatophyta
Classis*: Angiospermae
Cladus: Mesangiospermae
Cladus: Eudicota
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids II
Ordo: Brassicales

Familia: Brassicaceae
Tribus: Thelypodieae
Genus: Chilocardamum
Species: C. castellanosii – C. longistylum – C. onuridifolium – C. patagonicum
Name

Chilocardamum O.E.Schulz in Engler, Pflanzenr. IV. 105 (Heft 86): 179. (1924)

Type species: Chilocardamum patagonicum (Speg.) O.E.Schulz in Engler, Pflanzenr. IV. 105(Heft 86):180. (1924)

Synonyms

Heterotypic
Dimitria Ravenna, Anal. Mus. Hist. Nat. Valparaiso 5: 91. (1972)
Type species: Dimitria onuridifolia Ravenna.

References

Schulz, O.E. 1924. Das Pflanzenreich IV. 105(Heft 86): 179.
Al-Shehbaz, I. A. 2006. The genus Sisymbrium in South America, with synopses of the genera Chilocardamum, Mostacillastrum, Neuontobotrys and Polypsecadium (Brassicaceae). Darwiniana 44: 341–358. PDF in Engliah Reference page.
Koch, M.A. et al. 2017. Chilocardamum in BrassiBase Tools and biological resources to study characters and traits in the Brassicaceae. Published online. Accessed: 2017 Jan. 24.
International Plant Names Index. 2017. Chilocardamum. Published online. Accessed: Jan. 24 2017. Reference page.
Tropicos.org 2017. Chilocardamum. Missouri Botanical Garden. Published online. Accessed: 24 Jan. 2017.

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

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

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

The genus is endemic to southern Argentina.[2][3]
Species

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

"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.
"Chilocardamum O.E.Schulz". Plants of the World Online. Royal Botanic Gardens, Kew. 2017. Retrieved 21 October 2020.
"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.
"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.