[Botany • 2021] Anemopaegma kawense (Bignoniaceae) • A New Species from the Kaw Mountain (French Guiana), with Notes on related Species and A Key to the Genus in the Guianas

[Botany • 2021] Anemopaegma kawense (Bignoniaceae) • A New Species from the Kaw Mountain (French Guiana), with Notes on related Species and A Key to the Genus in the Guianas - Hallo frends Species New to Science, thank you for visiting this blog [Botany • 2021] Anemopaegma kawense (Bignoniaceae) • A New Species from the Kaw Mountain (French Guiana), with Notes on related Species and A Key to the Genus in the Guianas, We have prepared this article well for you to read and take information in it. hopefully the contents of the post vidio 'Open Access', vidio 2021, vidio Bignoniaceae, vidio Botany, vidio Eudicots, vidio French Guiana, vidio Journal: Plant Ecology and Evolution, vidio Neotropical, vidio Neotropical Botany, vidio South America, vidio Taxonomy, vidio Toponym, what we wrote you can enjoy, send your video to metart30@gmail.com and we are very happy to publish it like the video below

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[Botany • 2021] Anemopaegma kawense (Bignoniaceae) • A New Species from the Kaw Mountain (French Guiana), with Notes on related Species and A Key to the Genus in the Guianas


Anemopaegma kawense O.Lachenaud & Firetti-Legg., 

in Lachenaud, Firetti & Lohmann, 2021. 

Abstract
Background and aims – The genus Anemopaegma (Bignoniaceae) includes around 47 species and has its centre of diversity in Brazil. Here, we describe and illustrate a new species from French Guiana, Anemopaegma kawense, and compare it to the two most similar species, A. foetidum and A. granvillei. We further assess the conservation status of all three species.

Material and methods – Morphological descriptions are based on herbarium specimens deposited at BM, BR, CAY, INPA, K, MO, P, SPF, and U, and, in the case of the newly described species, also on field observations. The conservation status assessments follow the IUCN Red List criteria.

Key results – Anemopaegma kawense differs from both A. foetidum and A. granvillei by its densely villose twigs, longitudinally plicate leaflets with secondary veins not or hardly prominent below, and tertiary veins impressed below. It is further separated from A. foetidum by the leaflets that are villose below and the calyx that is entirely pubescent outside. On the other hand, A. kawense differs from A. granvillei by the densely lepidote outer surface of the corolla, shorter petiolules, leaflets with midrib impressed above, shorter bracts and bracteoles, inflorescence peduncle exceeding the rachis, and pedicels densely puberulous, not lepidote or only sparsely so at the apex. This species is endemic to the Kaw Mountain in north-eastern French Guiana, where it grows in low stunted forest on laterite; it is assessed as Endangered according to the IUCN criteria. New descriptions are provided for A. granvillei, which is newly reported from Suriname, and for A. foetidum, which is newly reported from French Guiana; these two species are assessed as Endangered and Least Concern, respectively. Lectotypes are designated for A. maguirei, which is here synonymised with A. foetidum, and for A. umbellatum, another synonym of that species. A key to the 12 species of Anemopaegma occurring in the Guianas is presented. impressed above (vs prominent), tendrils with trifid apices (vs simple), bracts and bracteoles ca 1 mm long (vs 2–3.5 mm long), inflorescence peduncle exceeding the rachis (vs shorter than rachis), and pedicels densely puberulous, not or sparsely lepidote at apex (vs glabrous to sparsely puberulous and densely lepidote).

Keywords: Anemopaegma, Bignoniaceae, Bignonieae, French Guiana, Guiana Shield, Kaw Mountain, new species, rainforest, Suriname, taxonomy

 
Anemopaegma kawense O.Lachenaud & Firetti-Legg. 
A. Flowering stem. B. Detail of stem indumentum. C. Detail of indumentum on lower surface of leaflet. D. Prophylls of the axillary buds. E. Tendril. F. Flower. G. Detail of base of corolla lobes, outside. H. Calyx, seen from outside. I. Detail of calyx indumentum. J. Dissected corolla, with stamens and staminode. K. Style, ovary, and disk. L. Detail of ovary (outer surface). M. Fruit. N. Seed.
From Lachenaud et al. 2134. Drawn by Klei Sousa.

Anemopaegma kawense O.Lachenaud & Firetti-Legg. 
A. Habit. B. Flowers. C. Flower, side view, and leaves seen from below. D. Seed. E. Fruiting branch with one immature and one dehisced fruit. F. Immature fruit.
From Lachenaud et al. 2134. Photographs by Olivier Lachenaud.

Anemopaegma kawense O.Lachenaud & Firetti-Legg., sp. nov. 

Diagnosis – Anemopaegma kawense resembles A. foetidum and A. granvillei in its contracted and few-flowered inflorescences, truncate calyx, minute prophylls of the axillary buds, and leaflets with pinnate venation and weakly ascending secondary veins. It differs from both species by its densely villose twigs, longitudinally plicate leaflets with secondary veins not or hardly prominent on the lower surface, and tertiary veins impressed on the lower surface (vs twigs glabrous or minutely puberulous, leaflets flat with secondary and tertiary veins prominent below). It is further separated from A. foetidum by the villose lower surface of leaflets (vs glabrous) and the calyx which is entirely pubescent outside (vs glabrous towards the apex, except for the ciliate margin). It additionally differs from A. granvillei by the following characters: corolla densely lepidote outside (vs glabrous), petiolules 1–4 mm long (vs 5–10 mm long), leaflet midrib


Olivier Lachenaud, Fabiana Firetti and Lúcia G. Lohmann. 2021. Anemopaegma kawense (Bignoniaceae), A New Species from the Kaw Mountain (French Guiana), with Notes on related Species and A Key to the Genus in the Guianas.  Plant Ecology and Evolution. 154(2);  296-306. DOI: 10.5091/plecevo.2021.1775



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