[Botany • 2023] Lindernia barthlottii (Linderniaceae) • A New Species from Inselbergs in northern Madagascar

 

Lindernia barthlottii  Eb.Fisch., Andriant. & Sieder,

in Fischer, Andriantiana et Sieder, 2023.  

DOI: doi.org/10.11646/phytotaxa.626.3.5 

 Researchgate.net/publication/375862457

 

Abstract

The new species Lindernia barthlottii from an inselberg in Northern Madagascar is described and illustrated. It differs from all Madagascan Lindernia species in the small rosulate habit with condensed stems, the broad obtuse sepals, and the large and except for the palate entirely blue corolla. A short discussion on the other four species of Linderniaceae (Linderniella cerastioides, L. horombensis, L. pygmaea, Crepidorhopalon microcarpaeoides) endemic to inselbergs in Madagascar is provided.

Eudicots, endemic, Linderniella cerastioides, L. horombensis, L. pygmaea, Crepidorhopalon microcarpaeoides, ephemeral flush vegetation, taxonomy

 Lindernia barthlottti Eb.Fisch., andriant. & Sieder sp. nov.
a,. detail of habitat.-b. habit.

Photographs: a.Sieder, 8 February 2020. Scale bars: a. 5 mm -b. 2 mm.

EBERHARD FISCHER, JACKY LUCIEN ANDRIANTIANA and ANTON SIEDER. 2023. Lindernia barthlottii (Linderniaceae), A New Species from inselbergs in Madagascar.  Phytotaxa. 626(3); 191-198. DOI: doi.org/10.11646/phytotaxa.626.3.5 

 Researchgate.net/publication/375862457_Lindernia_barthlottii_a_new_species_from_inselbergs_in_Madagascar

[Botany • 2022] Hartliella txitongensis (Linderniaceae) • A New Species from Mozambique

Hartliella txitongensis Osborne & Eb.Fisch.,

in Osborne, Datizua, Mucaleque et Fischer, 2022. 

 DOI: 10.1007/s12225-022-10034-3

Summary

Hartliella txitongensis Osborne & Eb.Fisch., a species new to science from Niassa Province in Northern Mozambique, is described and illustrated. Hartliella txitongensis is the only species of Hartliella known from outside the Upper Katanga region of the Democratic Republic of the Congo and the adjacent region of Zambia. The species is provisionally assessed as Critically Endangered under IUCN criterion B and its potential to be a metallophyte is highlighted. A key to the five species of Hartliella is provided.

Keywords: Chitonga, metallophyte, Niassa, plant taxonomy, Txitonga

Hartliella txitongensis Osborne & Eb.Fisch. sp. nov.

RECOGNITION. Hartliella txitongensis is similar to H. bampsii, but differs in the pairs of stem leaves being closely spaced with a short and condensed internode, thus forming a rosette at base (stem leaves are usually more distant in H. bampsii on a ± elongated stem), the leaves being obovate to elliptic, 2 – 7.5 × 1 – 3.5 cm (vs broadly obovate, 4 – 8 × 2.4 – 2.9 cm in H. bampsii), the slightly longer corolla tube, 8 – 9 mm long (vs 5 – 7 mm in H. bampsii), the undivided upper lip of the corolla (upper lip of corolla bifid in H. bampsii) and the bilobed appendage at the base of the abaxial filaments (simple globose in all other Hartliella species). It differs from Hartliella capitata in the elongated stem below the inflorescence and the shape of the leaves (these being broadly obovate to lanceolate, (3 –) 5 – 7.5 × (1.5 –) 3 – 6 cm in H. capitata) and the shorter corolla tube (12 mm long in H. capitata). A key to species of Hartliella is given below and differences are summarised in Table 1.

ETYMOLOGY. Named after the Txitonga (= Chitonga) Mountains in order to highlight the conservation value of the area.

 

Jo Osborne, Castigo Datizua, Papin Mucaleque and Eberhard Fischer. 2022. Hartliella txitongensis (Linderniaceae), A New Species from Mozambique. Kew Bulletin. DOI: 10.1007/s12225-022-10034-3

[Botany • 2023] Linderniella porembskii (Linderniaceae) • A New Species from central Malagasy Granitic Inselbergs

Linderniella porembskii Andriamiar. & Rabarim., 

in Andriamiarisoa, Rabarimanarivo et Porembski, 2023.

DOI: 10.15553/c2023v781a2

Abstract

A rupicolous, resurrection, inselberg specialist plant is newly described and illustrated. Linderniella porembskii Andriamiar. & Rabarim. (Linderniaceae) is restricted to central Malagasy granitic inselbergs in the Amoron'i Mania Region. It differs from the other Malagasy species of the genus by its habit with dense and richly branched stems, decumbent to erect, and by being glabrous to glabrescent and having obovoid-acuminate capsule. A detailed description of the species is provided, accompanied by illustrations and an identification key to the Malagasy species of the genus. The new species is assessed as “Endangered” using to IUCN Red List Categories.

KEYWORDS: LINDERNIACEAE, Linderniella, Madagascar, inselberg, new species, Resurrection plant

Linderniella porembskii Andriamiar. & Rabarim.
 A. Habit; B. Distal leaf; C. Basal leaf; D. Sepal; E. Corolla (open); F. Staminode; G. Stamens; H. Pistil; I–K. Fruits; L. Seed.

[Rabarimanarivo et al. 741, TAN]

 [Drawings: R.L. Andriamiarisoa]

Linderniella porembskii Andriamiar. & Rabarim., sp. nov. 

Linderniella porembskii Andriamiar. & Rabarim. can be distinguished from the most similar L. horombensis (Eb. Fisch.) Eb. Fisch. et al. by its habit with dense and richly branched stems, decumbent to erect (vs. stems usually single, erect from a basal rosette), plants glabrous to glabrescent (vs. pubescent), and its capsules obovate-acuminate (vs. acuminate-attenuate).

Roger Lala Andriamiarisoa, Marina N. Rabarimanarivo and Stefan Porembski. 2023. A New Species of Linderniella (Linderniaceae) from central Malagasy Granitic Inselbergs. Candollea. 78(1); 11-15. DOI: 10.15553/c2023v781a2

 

Andriamiarisoa, R.L., M.N. Rabarimanarivo & S. Porembski (2023). Une nouvelle espèce de Linderniella (Linderniaceae) des inselbergs granitiques du centre de Madagascar. Candollea 78: 11–15.  

Une plante rupicole, reviviscente, spécialistes des inselbergs est nouvellement décrite et illustrée. Linderniella porembskii Andriamiar. & Rabarim. (Linderniaceae) est restreinte aux inselbergs granitiques du centre de Madagascar, dans la Région d'Amoron'i Mania. Elle se distingue des autres espèces malgaches du genre par son port herbacé avec des tiges richement ramifiées et touffues, décombantes et dressées, des plantes glabres à glabrescentes et sa capsule obovoïde-acuminée. Une description détaillée de l'espèce est fournie, accompagnée d'illustrations et d'une clé d'identification des espèces malgaches du genre. La nouvelle espèce est considérée comme “En danger” selon les Catégories de la Liste rouge de l'UICN.

[Botany • 2023] Crepidorhopalon droseroides (Linderniaceae) • A New and possibly carnivorous Species from Mozambique

Crepidorhopalon droseroides Eb.Fisch., Wursten & I.Darbysh.,

in Fischer, Wursten & Darbyshire, 2023.

DOI: 10.11646/phytotaxa.603.2.6

 www.KEW.org

Abstract

The new species Crepidorhopalon droseroides from Mozambique is described and illustrated. It represents the third strict Mozambique endemic in Linderniaceae, and it differs from all known species of Crepidorhopalon in the long sticky glandular hairs. The hypothesis that the species may be carnivorous is discussed. The Conservation Status is preliminarily assessed.

Keywords: Crepidorhopalon droseroides, endemics, carnivory, IUCN Red List, Philcoxia, taxonomy, Eudicots

Eberhard Fischer, Bart Wursten and Iain Darbyshire. 2023. A New and possibly carnivorous Species of Crepidorhopalon (Linderniaceae) from Mozambique.  Phytotaxa. 603(2); 191-198. DOI: 10.11646/phytotaxa.603.2.6

Kew’s top 10 new species of 2023

Kew’s scientists and international partners share their 10 favourite new species named to science in 2023.

 www.KEW.org/read-and-watch/top-10-species-2023