Plant Ecology and Evolution

12/09/2025

The allohexaploid genus Campeiostachys (StYH) originated from natural hybridization between tetraploid Roegneria (StY) and diploid Hordeum (H), with Roegneria as the maternal donor. The study also shows that C. purpuraristata belongs in the C. dahurica complex.

➡️ https://doi.org/10.5091/plecevo.153974

08/09/2025

Wild Vigna marina shows remarkable salt tolerance, surviving up to 20,000 ppm NaCl, outperforming commercial Vigna radiata varieties. Populations differ widely, making their conservation crucial for breeding salt-tolerant crops in a changing climate.

➡️ https://doi.org/10.5091/plecevo.161947

01/09/2025

Symmetry vs structure in naviculoid diatoms. This review shows how SEM & wall morphogenesis studies reshaped our understanding: structure, not symmetry, underpins true relationships. Valve shape and symmetry still matter but beware of overemphasising single traits.

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Background and aims – Over 40 years ago, I explored the use of symmetry and structure as taxonomic criteria for naviculoid diatoms, arguing that structure was the more informative character. This paper examines subsequent progress in the understanding and systematics of naviculoid diatoms with par...

28/08/2025

An endemic Uvariopsis (Annonaceae) is described from Gabon with distinct foul-smelling, cauliflorous flowers attracting rove beetles.

➡️ https://doi.org/10.5091/plecevo.152843

25/08/2025

Neotropical litter-gathering Rubiaceae: taxonomic novelties in Faramea from Brazil and French Guiana, and notes on other litter-gathering taxa (e.g. Rudgea, Psychotria, Palicourea).

➡️ https://doi.org/10.5091/plecevo.146274

21/08/2025

Morphological, phylogenetic, and breeding system analyses of the Vanilla chamissonis clade delimit its constituent species and support recognizing V. argentina as a separate taxon.

➡️ https://doi.org/10.5091/plecevo.154789

18/08/2025

This paper takes us to the montane forests of Central Africa where a new endemic orchid was described. The authors distinguish it from two other, similar Rhipidoglossum species in the area.

➡️ https://doi.org/10.5091/plecevo.155517

12/08/2025

After decades of mix-ups, Ouratea crassinervia (Ochnaceae) is confirmed as a unique Atlantic Forest species in Rio de Janeiro, Brazil. It has the typical "dracenoid" habit but can be recognized by its terminal inflorescences and large flowers.

➡️ https://doi.org/10.5091/plecevo.135902

03/07/2025

A new type of epicotyl physiological dormancy is described for the crypto-viviparous mangrove species Aegiceras corniculatum (Primulaceae).

➡️ https://doi.org/10.5091/plecevo.151630

26/06/2025

What is the IUCN conservation status of the bat-pollinated species in the Caatinga of Brazil? Half of the species is assessed as Least Concern but 80% of the species saw their conditions worsen in the last years.

➡️ https://doi.org/10.5091/plecevo.142555

18/06/2025

Calcium oxalate crystals are the most common biominerals in plants and they can have taxonomic value in Rubiaceae. In Mexico, Randia is characterised by the presence of druses.

➡️ https://doi.org/10.5091/plecevo.140133

16/06/2025

Struthanthus longipetiolatus (Loranthaceae) is a newly described hemiparasite that is endemic to the forests of the Sierra Madre del Sur Biogeographic Province in Mexico.

➡️ https://doi.org/10.5091/plecevo.145707