The phylogenetic position of Aglaodorum Schott (Araceae – Aroideae – Aglaonemateae)

Van, Hong Thien; Nguyen-Phi, Nga; Luu, Hong Truong

doi:10.33542/tjb2020-1-07

Cited by 3 publications

(2 citation statements)

References 17 publications

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“…Total genomic DNA was extracted from fresh leaf material of T. rhizomatosum using the GeneJET Genomic DNA Purification Column & Collection Tube (Thermo Fisher Scientific, USA). Sequences of the chloroplast loci of the new taxon were amplified and sequenced using the protocol described in Van et al (2020). The used primers are shown in Table 1.…”

Section: Molecular Analysesmentioning

confidence: 99%

\(\textit{Typhonium rhizomatosum}\) (Araceae), a new record for the flora of Vietnam

Nguyen-Phi,

Tien Van,

Luu

2023

AJB

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Section: Molecular Analysesmentioning

confidence: 99%

\(\textit{Typhonium rhizomatosum}\) (Araceae), a new record for the flora of Vietnam

Nguyen-Phi,

Tien Van,

Luu

2023

AJB

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“…These three genera comprise the Nephthytideae which is sister to the SE Asian tribe Aglaonemateae Engl. (Cabrera et al, 2008), consisting of Aglaonema Schott ( Van et al, 2020). Both groups share adjacent male and female flower zones, free stamens, and collenchyma arranged in threads peripheral to the vascular strands of leaf blades and petioles (with the exception of Nephthytis, in which collenchyma can form interrupted bands (Keating, 2002;Cabrera et al, 2008).…”

Section: Taxonomic Treatmentmentioning

confidence: 99%

Peer Review #1 of "Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon (v0.2)"

Hay¹

2021

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This is the first revision in more than 100 years of the African genus Pseudohydrosme, formerly considered endemic to Gabon. Closely related to Anchomanes, Pseudohydrosme is distinct from Anchomanes because of its 2-3-locular ovary (vs. unilocular), peduncle concealed by cataphylls at anthesis and far shorter than the spathe (vs. exposed, far exceeding the spathe), stipitate fruits and viviparous (asexually reproductive) roots (vs. sessile, roots non-viviparous), lack of laticifers (vs. laticifers present) and differences in spadix: spathe proportions and presentation. However, it is possible that a well sampled molecular phylogenetic analysis might show that one of these genera is nested inside the other. In this case the synonymisation of Pseudohydrosme will be required. Three species, one new to science, are recognised, in two sections. Although doubt has previously been cast on the value of recognising Pseudohydrosme buettneri, of Gabon, it is here accepted and maintained as a distinct species in the monotypic section, Zyganthera. However, it is considered to be probably globally extinct. Pseudohydrosme gabunensis, type species of the genus, also Gabonese but probably extending to Congo, is maintained in Sect.Pseudohydrosme together with Pseudohydrosme ebo sp.nov. of the Ebo Forest, Littoral Region, Cameroon, the first addition to the genus since the nineteenth century, and which extends the range of the genus 450 km north from Gabon, into the Cross-Sanaga biogeographic area. The discovery of Pseudohydrosme ebo resulted from a series of surveys for conservation management in Cameroon, and triggered this paper. All three species are morphologically characterised, their habitat and biogeography discussed, and their extinction risks are respectively assessed as Critically Endangered (Possibly Extinct),

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Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

Cheek

Tchiengué

Burgt

2021

PeerJ

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This is the first revision in more than 100 years of the African genus Pseudohydrosme, formerly considered endemic to Gabon. Closely related to Anchomanes, Pseudohydrosme is distinct from Anchomanes because of its 2-3-locular ovary (vs. unilocular), peduncle concealed by cataphylls at anthesis and far shorter than the spathe (vs. exposed, far exceeding the spathe), stipitate fruits and viviparous (asexually reproductive) roots (vs. sessile, roots non-viviparous), lack of laticifers (vs. laticifers present) and differences in spadix: spathe proportions and presentation. However, it is possible that a well sampled molecular phylogenetic analysis might show that one of these genera is nested inside the other. In this case the synonymisation of Pseudohydrosme will be required. Three species, one new to science, are recognised, in two sections. Although doubt has previously been cast on the value of recognising Pseudohydrosme buettneri, of Gabon, it is here accepted and maintained as a distinct species in the monotypic section, Zyganthera. However, it is considered to be probably globally extinct. Pseudohydrosme gabunensis, type species of the genus, also Gabonese but probably extending to Congo, is maintained in Sect. Pseudohydrosme together with Pseudohydrosme ebo sp.nov. of the Ebo Forest, Littoral Region, Cameroon, the first addition to the genus since the nineteenth century, and which extends the range of the genus 450 km north from Gabon, into the Cross-Sanaga biogeographic area. The discovery of Pseudohydrosme ebo resulted from a series of surveys for conservation management in Cameroon, and triggered this article. All three species are morphologically characterised, their habitat and biogeography discussed, and their extinction risks are respectively assessed as Critically Endangered (Possibly Extinct), Endangered and Critically Endangered using the IUCN standard. Clearance of forest habitat for logging, followed by agriculture or urbanisation are major threats. Pseudohydrosme gabunensis may occur in a formally protected area and is also cultivated widely but infrequently in Europe, Australia and the USA for its spectacular inflorescences.

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The phylogenetic position of Aglaodorum Schott (Araceae – Aroideae – Aglaonemateae)

Cited by 3 publications

References 17 publications

\(\textit{Typhonium rhizomatosum}\) (Araceae), a new record for the flora of Vietnam

\(\textit{Typhonium rhizomatosum}\) (Araceae), a new record for the flora of Vietnam

Peer Review #1 of "Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon (v0.2)"

Taxonomic revision of the threatened African genus Pseudohydrosme Engl. (Araceae), with P. ebo, a new, critically endangered species from Ebo, Cameroon

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