Using multiple plastid DNA regions to construct the first phylogenetic tree for Asian genera of Coffeeae (Ixoroideae, Rubiaceae)

Arriola, Axel H.; Davis, Aaron P.; Davies, Nina M.; Meve, Ulrich; Liede‐Schumann, Sigrid; Alejandro, Grecebio Jonathan D.

doi:10.1093/botlinnean/boy059

Cited by 8 publications

(12 citation statements)

References 23 publications

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“…However, Diplospora malaccensis shows many similarities with Discospermum, particularly Discospermum beccarianum (King & Gamble) S.J.Ali & Robbr. The latter was demonstrated to be a close ally of the type species of Discospermum, D. sphaerocarpum Dalzell, by Arriola et al (2018). I conclude that for the forthcoming Flora of Singapore Diplospora malaccensis is best placed in the genus Discospermum.…”

Section: Diplospora DC Versus Discospermum Dalzellmentioning

confidence: 76%

“…This synonymisation of the genera was generally accepted until Ali & Robbrecht (1991) resurrected Discospermum. Arriola et al (2018) have recently confirmed, using molecular techniques, that Diplospora and Discospermum do represent separate lineages in the coffee tribe. The only species of the Coffeeae native to Singapore has been referred to as Diplospora malaccensis Hook.f.…”

Section: Diplospora DC Versus Discospermum Dalzellmentioning

confidence: 82%

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Flora of Singapore precursors, 12. Notes on various Rubiaceae genera

Turner¹

2019

GBS

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In preparation for the account of the Rubiaceae for the Flora of Singapore various notes are presented concerning the genera Discospermum Dalzell, Lasianthus Jack, Mussaenda L. and Psychotria L. Nomenclatural comments on the generic synonyms Landia Comm. ex Juss. (= Mussaenda) and Uragoga Baill. (= Psychotria) are made. Lectotypes are designated at the first or second step for 42 names, and one neotype is designated. Recent collections of Lasianthus griffithii Wight and Psychotria morindiflora Wall. ex Hook.f. from Singapore are highlighted.

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Section: Diplospora DC Versus Discospermum Dalzellmentioning

confidence: 76%

Section: Diplospora DC Versus Discospermum Dalzellmentioning

confidence: 82%

Flora of Singapore precursors, 12. Notes on various Rubiaceae genera

Turner¹

2019

GBS

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“…Its species are distinguished from Tricalysia in the strict sense by black fruits, flag-like anther connectives, hairs projecting from the corolla throat and free, often alternate distal bracts. The phylogeny of the group was refined by Arriola et al (2018) who included Asian representatives in the sampling and postulated that Tricalysia sensu stricto is sister to a clade (Sericanthe (Diplospora, Empogona)).…”

Section: The Genus Tricalysiamentioning

confidence: 99%

Notes on Tricalysia elmar sp. nov. (Rubiaceae, Coffeeae), and cloud forest of the Cameroon Highlands

Cheek¹,

Causon²,

Tchiengué³

et al. 2020

Pl. Ecol. Evol.

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Background and aims – This paper reports a further discovery in the context of a long-term botanical survey in the Cross River-Sanaga interval of west-central Africa, focussing on species discovery and conservation.Methods – Normal practices of herbarium taxonomy have been applied to study the material collected. The relevant collections are stored in the Herbarium of the Royal Botanic Gardens, Kew, London and at the Institute of Research in Agronomic Development – National Herbarium of Cameroon. Key results – Species new to science recently discovered from the cloud (submontane) forests of the Cameroon Highlands in Cameroon are reviewed. Most of these species are rare, highly localised, and threatened by habitat destruction. These discoveries increase the justification for improved conservation management of surviving habitat. Tricalysia elmar Cheek (Coffeeae-Rubiaceae) is described as an additional cloud forest species new to science. Its taxonomic position is discussed, and it is compared with similar species of the genus. Restricted so far to four locations, Mt Kupe, Bali Ngemba, Lebialem and Nta Ali, its conservation status is assessed as Endangered (EN B1+2ab(iii)) according to the 2012 criteria of IUCN.

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“…They found that the two genera differ in placentation, fruit size and fruit wall texture, the number of seeds per locule, seed shape, and exotestal cell anatomy. Using molecular techniques, Arriola et al (2018) have shown that Diplospora and Discospermum represent separate lineages in the tribe Coffeeae. Molecular investigations by Tosh et al (2009) further supported the decision to keep Diplospora and Discospermum as two distinct genera.…”

Section: Introductionmentioning

confidence: 99%

Notes on Discospermum sphaerocarpum Dalzell ex Hook.f., a rare species of Rubiaceae (Ixoroideae: Coffeeae) from southern India

Pramod,

V.V. Drisya,

A.K. Pradeep

et al. 2023

J. Threat. Taxa

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Discospermum sphaerocarpum is a rare species in the tribe Coffeeae of the family Rubiaceae and its occurrence on the Madayippara lateritic plateau of the Kannur district of Kerala, southern India is discussed. This plant is endemic to southern India and Sri Lanka. In Kerala, this species was previously recorded from the low-altitude evergreen forests of Thiruvananthapuram district. The present study gives a detailed description, distribution and figures & images illustrating the diagnostic characters of D. sphaerocarpum for easy identification and conservation.

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Using multiple plastid DNA regions to construct the first phylogenetic tree for Asian genera of Coffeeae (Ixoroideae, Rubiaceae)

Cited by 8 publications

References 23 publications

Flora of Singapore precursors, 12. Notes on various Rubiaceae genera

Flora of Singapore precursors, 12. Notes on various Rubiaceae genera

Notes on Tricalysia elmar sp. nov. (Rubiaceae, Coffeeae), and cloud forest of the Cameroon Highlands

Notes on Discospermum sphaerocarpum Dalzell ex Hook.f., a rare species of Rubiaceae (Ixoroideae: Coffeeae) from southern India

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