Tag Archives: Caryophyllaceae

Eremogone franklinii var. thompsonii (M. Peck) R. L. Hartman & Rabeler

Thompson’s Sandwort (Eremogone franklinii var. thompsonii)

Franklin’s Sandwort (Eremogone franklinii (Douglas ex Hooker) R. L. Hartman & Rabeler) (see photo) is a quite widespread cushion-forming plant species that occurs in the western USA.

The variety discussed here, however, is known only from the type that was collected in the 1930s somewhere in Gilliam County in Oregon, USA. It may be extinct, however, it was found once in the 1980s in Benson County, Washington so may in fact be still existing.

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Franklin’s Sandwort (Eremogone franklinii), nominate race

Photo: Matt Lavin

(under creative commons license (2.0))
http://creativecommons.org/licenses/by-sa/2.0

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edited: 14.04.2019

Eremogone ferruginea (Duthie ex Williams) Rabeler & W. L. Wagner

Rusty Sandwort (Eremogone ferruginea)

The Rusty Sandwort (originally described as Arenaria ferruginea Duthie ex F. N. Williams [1]) was restricted to the valleys of the rivers Dhauli and Kali in the Kumaon Division of Uttarakhand, India, it is known exclusively from material that had been collected in 1886 and is most likely extinct.

The species probably disappeared due to heavy grazing by feral ungulates.

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References:

[1] Richard K. Rabeler; Warren L. Wagner: Eremogone (Caryophyllaceae): new combinations for Old World species. PhytoKeys 50: 35-42. 2015

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edited: 14.04.2019

Paronychia maccartii Correll

Mccart’s Whitlow-Wort (Paronychia maccartii)  

Mccart’s Whitlow-Wort, a member of the Pink family, was endemic to Texas, USA, where it was restricted to a single locality in Webb County.  

The species appears to be known exclusively from the type material, that had been collected in 1962, it was never found again since and is thus considered very likely extinct.  

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edited: 22.03.2018

Arenaria oligosperma Naudin

Many-seeded Sanwort (Arenaria oligosperma)

The Many-seeded Sanwort was probably described in 1846 (the author is sometimes given as C. Gay).

The species was apparently endemic to a small area in the IV Coquimbo Region of northern Chile and appears to be lost or even extinct.

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References:

[1] Clodomiro Marticorena; Francisco A Squeo; Gina Arancio; Mélica Muñoz: Catálogo de la Flora Vascular de la IV Región de Coquimbo. Libro Rojo de la Flora Nativa y de los Sitios Prioritarios para su Conservación: Región de Coquimbo (F. A. Squeo, G. Arancio y J. R. Gutiérrez, Eds.) Ediciones Universidad de La Serena, La Serena, Chile 7: 105-142. 2001

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edited: 14.04.2019

Schiedea implexa (Hillebr.) Sherff

Auwahi Schiedea (Schiedea implexa)

The Auwahi Schiedea is endemic to the island of Maui, Hawaiian Islands.

The species is known from only two populations and was last recorded in 1910, however, it appears to have been entirely restricted to vertical cliffs, and might thus in fact still exist somewhere. 

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Photo: David Eickhoff 
http://nativeplants.hawaii.edu

(under creative commons license (2.0)) 
http://creativecommons.org/licenses/by-nc-sa/2.0

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edited: 09.02.2020

Schiedea amplexicaulis H. Mann

Niihau Schiedea (Schiedea amplexicaulis)

This species is known from only two collections that were made at an unknown place on the island of Kaua’i, Hawaiian Islands as well as probably on the nearby island of Ni’ihau.

The species is now thought to be extinct.

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Photo: David Eickhoff 
http://nativeplants.hawaii.edu

(under creative commons license (2.0)) 
http://creativecommons.org/licenses/by-nc-sa/2.0

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edited: 09.02.2020

Arenaria radians Benth.

Radiated Sandwort (Arenaria radians)

The Radiated Sandwort was endemic to Ecuador, where it apparently was restricted to the vicinity of the Chimborazo volcano.

The species is known from the type material only which was collected in 1841 or 1842, there is, however, some additional material, which, despite being very similar, seems not to belong to that species.

The Radiated Sandwort may be extinct, or may be identical with another species, Arenaria dicranoides Kunth. 

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edited: 14.04.2019

Silene degeneri Sherff

Degener’s Catchfly (Silene degeneri 

This species is known from only a few specimens that were collected in the early 1900s near the so called Ko’olau Gap at the Haleakala crater on eastern Maui, Hawaiian Islands.  

The species was apparently last seen in 1927 and is now considered extinct.  

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Another species of the genus, the Haleakala Catchfly (Silene struthioloides A. Gray) (see photo), ist still found in the same place.  

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Haleakala Catchfly (Silene struthioloides A. gRAY)  

Photo: Kim Starr & Forest Starr; by courtesy of Kim Starr & Forest Starr 
http://www.starrenvironmental.com

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edited: 16.04.2019