Zobrazeno 1 - 10
of 54
pro vyhledávání: '"Petra De Block"'
Autor:
Salvator Ntore, Jacques Nkengurutse, Sander de Backer, Bonaventure Sonké, Petra De Block, Steven B. Janssens, Brecht Verstraete, Elmar Robbrecht
Publikováno v:
European Journal of Taxonomy, Vol 935, Iss 1 (2024)
Field work in the Kibira National Park (Burundi), located in the Kivu-Ruwenzori system of the Afromontane Region, revealed the existence of a new species clearly belonging to the Argocoffeopsis-Calycosiphonia clade (Coffeeae, Rubiaceae). The species
Externí odkaz:
https://doaj.org/article/172a790178b84a51aede493de77203b6
Publikováno v:
Ecology and Evolution, Vol 13, Iss 10, Pp n/a-n/a (2023)
Abstract The emergence of flowers marked an important development in plant evolution. Flowers in many species evolved to attract animal pollinators to increase fertilisation chances. In leaves, silicon (Si) discourages herbivores, for example by wear
Externí odkaz:
https://doaj.org/article/50719db653c148edb7ecc1651f60ba08
Autor:
Brecht Verstraete, Steven Janssens, Petra De Block, Pieter Asselman, Gabriela Méndez, Serigne Ly, Perla Hamon, Romain Guyot
Publikováno v:
PeerJ, Vol 11, p e15778 (2023)
Background Leaf symbiosis is a phenomenon in which host plants of Rubiaceae interact with bacterial endophytes within their leaves. To date, it has been found in around 650 species belonging to eight genera in four tribes; however, the true extent in
Externí odkaz:
https://doaj.org/article/daa74efc42ad4fbe8e567e5ea58a843f
Publikováno v:
Plant Ecology and Evolution, Vol 155, Iss 3, Pp 379-393 (2022)
Background – Vegetative and fruit characters of the Amazonian genus Dialypetalanthus point to a position in Rubiaceae. However, its floral morphology is so deviant that the genus was often placed in a family of its own. Even relationships outside G
Externí odkaz:
https://doaj.org/article/ec879e23b5d145798de31ce762894e39
Autor:
Wesley Tack, Henry Engledow, Nuno Veríssimo Pereira, Christian Amani, Steven P. Bachman, Patricia Barberá, Henk J. Beentje, Gaël U. D. Bouka, Martin Cheek, Ariane Cosiaux, Gilles Dauby, Petra De Block, Corneille E. N. Ewango, Eberhard Fischer, Roy E. Gereau, Serene Hargreaves, Yvette Harvey-Brown, Davy U. Ikabanga, Edouard Ilunga wa Ilunga, James Kalema, Peris Kamau, Olivier Lachenaud, Quentin Luke, Ithe Mwanga Mwanga, Sydney T. Ndolo Ebika, Jacques Nkengurutse, Aimable Nsanzurwimo, Salvator Ntore, Sophie L. Richards, Reddy Shutsha Ehata, Murielle Simo-Droissart, Tariq Stévart, Marc S. M. Sosef
Publikováno v:
PhytoKeys, Vol 206, Iss , Pp 137-151 (2022)
In this data paper, we present a specimen-based occurrence dataset compiled in the framework of the Conservation of Endemic Central African Trees (ECAT) project with the aim of producing global conservation assessments for the IUCN Red List. The proj
Externí odkaz:
https://doaj.org/article/8d9dbf0f056b44e2a949776d99729641
Autor:
Petra De Block, Franck Rakotonasolo, Sylvain G. Razafimandimbison, Aaron P. Davis, Steven B. Janssens
Publikováno v:
Plant Ecology and Evolution, Vol 154, Iss 1, Pp 87-110 (2021)
Background – This contribution is part of an ongoing study on the taxonomy and the phylogenetic relationships of the Malagasy representatives of the tribe Pavetteae (Rubiaceae).Material and methods – Taxonomic methods follow normal practice of he
Externí odkaz:
https://doaj.org/article/29d0e18055984f068cb76f5235289565
Publikováno v:
Plant Ecology and Evolution, Vol 153, Iss 3, Pp 466-486 (2020)
Background and aims – Rubieae is a tribe in the subfamily Rubioideae characterised by herbaceous plants with verticillate leaves and flowers with a rudimentary or absent calyx and a short, cup-shaped corolla. This is in contrast to the flowers of m
Externí odkaz:
https://doaj.org/article/c04cff735f0845dca48decb191ed262f
Autor:
Petra De Block
Publikováno v:
European Journal of Taxonomy, Vol 801, Iss 1 (2022)
The western Indian Ocean genus Paracephaelis is revised. Sixteen species are endemic to Madagascar, 12 of which are new for science: P. aristata sp. nov., P. bardotiae sp. nov., P. capitulifera sp. nov., P. gautieri sp. nov., P. grandifructa sp. nov.
Externí odkaz:
https://doaj.org/article/0b6ffb3b654c48fd982a1a91186ab775
Publikováno v:
Plant Ecology and Evolution, Vol 153, Iss 2, Pp 267-282 (2020)
Background – Phialiphora (Spermacoceae, Rubiaceae) is a herbaceous genus restricted to unconsolidated white sands in open spaces in dry forests in northwestern Madagascar. The genus is characterized by the semi-succulent nature of its leaves and st
Externí odkaz:
https://doaj.org/article/a0b637166d5e4e2a9c9fdd9c24eb5e83
Autor:
Petra De Block
Publikováno v:
Plant Ecology and Evolution, Vol 151, Iss 3, Pp 442-448 (2018)
Background – The rain forest genus Ixora currently comprises 37 species in Continental Africa. Within the framework of a treatment of the genus for the Flore d’Afrique centrale, a new species is described from D.R. Congo, despite its being known
Externí odkaz:
https://doaj.org/article/e478124696764f6b929d9f727144e277