Tag Archives: Apocynaceae

Scyphostelma sodiroi (K. Schum.) Liede & Meve

Sodiro’s Stranglevine (Scyphostelma sodiroi)

Sodiro’s Stranglevine is one of several species in this genus that are endemic to Ecuador. It is known from only two collections, the first one dating from 1887 and the last one from 1936, both were purchased in the Pichincha Province

The species was not found since and appears to be extinct.

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References:

[1] Sigrid Liede-Schumann; Ulrich meve: The Orthosiinae revisited (Apocynaceae, Asclepiadoideae, Asclepiadeae). Annals of the Missouri Botanical Garden 99(1): 44-81. 2013

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edited: 19.09.2020

Prestonia schumanniana Woodson

Schumann’s Prestonia (Prestonia schumanniana)

Schumann’s Prestonia is known only from the type material which had been collected in 1892 near the town of Balao in the Guayas Province of western Ecuador.

The original native vegetation at the type locality is now completely destroyed and this plant is very likely extinct now.

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The photo below shows a congeneric species, the Starfish Wine (Prestonia mollis (Kunth.)), which is apparently still quite commonly found in Ecuador.

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Starfish Wine (Prestonia mollis)

Photo: kathyliz
https://www.inaturalist.org/people/kathyliz

https://creativecommons.org/licenses/by-nc/4.0/

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edited: 24.08.2022

Scyphostelma velutina (Morillo) Liede & Meve

Velvety Stranglevine (Scyphostelma velutina)

The Velvety Stranglevine is known only from the type material collected in 1858 at the Río Pangor near Juan de Velasco, a local community in the Chimborazo Province in central Ecuador.

The exact locality appears to be unknown, however, no additional material has ever been collected and the species very likely is extinct. 

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References:

[1] Sigrid Liede-Schumann; Ulrich meve: The Orthosiinae revisited (Apocynaceae, Asclepiadoideae, Asclepiadeae). Annals of the Missouri Botanical Garden 99(1): 44-81. 2013

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edited: 19.09.2020

Matelea ecuadorensis (Schltr.) Morillo

Ecuadorian Matelea (Matelea ecuadorensis)

The Ecuadorian Matelea is apparently known only from the type material which was collected sometimes in the 19th century somewhere near the city of Quito in the Pichincha Province of Ecuador.

The species was never recorded since and might be extinct.

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edited: 28.04.2021

Xysmalobium baurii N. E. Br.

Baur’s Xysmalobium (Xysmalobium baurii)

Baur’s Xysmalobium was described in 1907, it is known from a single collection that was made in 1890 where today is the city of Bizana in the Eastern Cape Province of South Africa. 

The former habitat of the species is now transformed for subsistence agriculture or is severely overgrazed or otherwise destroyed, it was never relocated since its description and is therefore considered extinct.

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edited: 16.05.2019

Riocreuxia woodii N. E. Br.

Wood’s Riocreuxia (Riocreuxia woodii)  

This species, described in 1908, was endemic to KwaZulu-Natal, South Africa.  

The species was a climbing plant with heart-shaped leaves and lantern-shaped flowers.  

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edited: 31.10.2017