Echeveria
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TOBARENSIS  Berger 1930  (engl./ fr.)

Synonym : Urbinia lurida Rose (1911)

Series Urbiniae

Type : Palmer 248, collected in a "box cañon" near Tobar, Durango, Mexico, May 28, 1906. US 571269.

Etymology : Referring to the locality where the plant had been found.

Distribution : Mexico (Durango)

 

First Description by Rose as Urbinia lurida in Contributions from the United States National Herbarium 13: 301. 1911 :

Leaves clustered in a dense rosette, very thick, ovate, acuminate, glabrous, purple or lurid in colour, 3 - 4 cm long, 1.5 - 2.5 cm broad at widest point.

Flowering stem 25 cm long, two-branched in only specimen seen.

Stem leaves small, bract-like, scattered.

Flowers : Sepals small, ovate, acute, corolla 6 - 7 mm long, dark red, petals acute, erect except the small outturned tip, carpels distinct to the base.

Note :

The description of this species has been made from a herbarium specimen showing only two partially damaged leaves and one inflorescence. Therefore it is far too deficient to give a correct idea of the species concerned. In an article published in the US Journal, vol. 83, nr. 6, 2011, Etter & Kristen explain that they have found an Echeveria near Tovar and believe that it is identical with E. tobarensis Berger.

They describe it as follows :

Rosette 12 cm in diameter, ± 40 leaves per rosette.

Leaves clustered, thick, ovate, sharp acuminate, underside keeled, glabrous, 4 - 6 x 2.5 - 3.5 cm at the widest point, greyish-purple.

Inflorescence 25 - 30 cm long, bifurcate, bracts small and thin, to 1 cm long, regularly spaced.

Flowers : Sepals small, to 5 mm long, ovate, acute, corolla 10 - 12 mm long, petals acute, erect except the small recurved tip, pink. 

However, as the two authors state, in view of the unsufficient information regarding the original E. tobarensis it cannot be proved whether this recently found plant is identical or whether it is a new species. It will be up to a taxonomist to decide whether it is correct to use this old name for the new plant.

Link to the French translation.

 


Echeveria aff. tobarensis :




Photos Gerhard Köhres




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