Joanna Mytnik‐Ejsmont

University of Gdańsk

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Dariusz L. Szlachetko

University of Gdańsk

Marcin Górniak

University of Gdańsk

Piotr Rutkowski

University at Buffalo, State University of New York

Przemysław Baranow

University of Gdańsk

Sławomir Nowak

University of Gdańsk

Magdalena Dudek

University of Gdańsk

Marta Kolanowska

University of Łódź

Hanna B. Margońska

University of Gdańsk

Piotr Tukałło

Adam Mickiewicz University in Poznań

Agnieszka Romowicz

Warsaw University of Technology

Cooperative Institutions

University of Gdańsk

Adam Mickiewicz University in Poznań

Jagiellonian University

Institute of Nature Conservation

University of San Carlos of Guatemala

Faculty (United Kingdom)

Warsaw University of Technology

University of Łódź

Czech Academy of Sciences, Global Change Research Institute

Instituto de Investigación en Cambio Global

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Gynostemia Orchidalium IV: Orchidaceae-Vandoideae (Maxillarieae, Cryptarrheneae, Zygopetaleae, Dicheeae, Telipogoneae, Ornithocephaleae, Oncidieae).

Dariusz L. Szlachetko Joanna Mytnik‐Ejsmont

Orchidaceae

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Citations (2)

GENERA ET SPECIES ORCHIDALIUM. 13. ONCIDIEAE

Polish Botanical Journal (2006)

Dariusz L. Szlachetko Joanna Mytnik‐Ejsmont

A new genus - Anettea Szlach. & Mytnik, gen. nov. - of the tribe Oncidieae (Vandoideae, Orchidaceae) is described. Taxonomic affinities of the newly proposed taxon is briefly discussed. New binominal combinations are made.

Orchidaceae

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A phylogenetic and morphological study of Polystachya sect. Superpositae (Orchidaceae) with description of a new species from Cameroon

Plant Systematics and Evolution (2013)

Joanna Mytnik‐Ejsmont Dariusz L. Szlachetko Przemysław Baranow Marcin Górniak

Polystachya section Superpositae is a group of montane and submontane African epiphytes with thirteen species (including the newly described in this paper). During a scientific expedition to Bamenda Highland, Cameroon a new species, Polystachya bamendae, was found and it is described here. The new entity was compared with 398 herbarium specimens representing the section, including the type collections. The molecular analyses of the ITS and matK strongly support the results of morphological studies and reveal close relationship between the new species and the species of the section Superpositae. Two hypotheses supporting function of the matK gene in the examined species are presented. The phylogenetic and morphological relation of Polystachya bamendae to P. lindblomii and P. superposita is discussed. The distribution range of the section is analyzed and a discussion about the distribution of the species is presented. A distribution map of the section and dichotomous key to the species of Superpositae are provided. The occurrence of the species of the section in two Biodiversity Hotspots (Guinea Forests of West Africa and Eastern Afromontane) is discussed.

Herbarium

Orchidaceae

Epiphyte

10.1007/s00606-013-0856-0

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GENERA ET SPECIES ORCHIDALIUM. 14. ONCIDIEAE

Polish Botanical Journal (2006)

Dariusz L. Szlachetko Joanna Mytnik‐Ejsmont Agnieszka Romowicz

Lophiarella Szlach., Mytnik & Romowicz, gen. nov. and Heteranthocidium Szlach., Mytnik & Romowicz, gen. nov. (Orchidaceae, Vandoideae, Oncidieae) are described as new genera. Their taxonomic relationships are briefly discussed. New binominal combinations in these two new genera are validated.

Orchidaceae

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Colossus from Algebron – Gamification as a Tool to Engage Students in Learning Mathematics

Scientific Journal of Gdynia Maritime University (2024)

Barbara Wikieł Joanna Mytnik‐Ejsmont

Gamification is a tool that allows for high engagement in performing tasks that have been previously considered difficult or uninteresting. It works exceptionally well in education as it supports students in developing habits of learning and provides them with a visual representation of their progress in acquiring knowledge and skills. Skillful design of gamified academic courses enables the achievement of the educational goals set by both the students and the academic teachers. Gamification is helpful for subjects that seem challenging, require a significant amount of effort, or are simply perceived by students as uninteresting or useless. The purpose of this paper is to discuss various aspects of engaging students in the process of learning mathematics by the gamification of linear algebra.

Colossus computer

10.26408/131.05

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New taxa and new combinations in Mesoamerican Stenorrhynchidinae (Orchidaceae, Spirantheae)

Piotr Rutkowski Joanna Mytnik‐Ejsmont Dariusz L. Szlachetko

The following new species of the Orchidaceae subtribe Stenorrhynchidinae are described and illustrated: Coccineorchis cristata Szlach., Rutk. & Mytnik, C. dressleri Szlach., Rutk. & Mytnik, C. warszewicziana Szlach., Rutk. & Mytnik, Schiedeella tamayoana Szlach., Rutk. & Mytnik, S. williamsiana Szlach., Rutk. & Mytnik, and Svenkoeltzia pamelae Szlach., Rutk. & Mytnik. A new subgenus Oestlundorchis Szlach. subgenus Mexicanthes Szlach., Rutk. & Mytnik is proposed. A new combination Stenorrhynchos vexillaris (Szlach.) Szlach., Rutk. & Mytnik, comb. & stat. nov. is validated. Keys for identification of the Mesoamerican species of Coccineorchis and Svenkoeltzia are provided.

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Cephalanthera ericiflora Szlach. and Mytnik, sp. nov. (Orchidaceae, Neottioideae), a new species from Laos

Acta Societatis Botanicorum Poloniae (2011)

Dariusz L. Szlachetko Joanna Mytnik‐Ejsmont Hanna B. Margońska

A new orchid species, <em>Cephalanthera ericiflora</em> Szlach. and Mytnik, sp. nov. is described and illustrated. Its taxonomic position is briefly discussed

Orchidaceae

10.5586/asbp.2008.026

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Eight new species of Gomphichis (Orchidaceae, Spiranthoideae) from Colombia

Plant Systematics and Evolution (2014)

Sławomir Nowak Dariusz L. Szlachetko Joanna Mytnik‐Ejsmont A.M. Cleef

Eight new species of the genus Gomphichis from Colombia are described. Each species is illustrated, and detailed habitat and distribution data are provided. A distribution map of the new species is presented. A dichotomous key for determination of the Gomphichis species in northern South America is provided. Conservation status assessments are provided for each species; current International Union for Conservation of Nature (IUCN) Red List categories and criteria are listed. A brief discussion of spiranthoid orchids taxonomy, conservation status of species, endemism in the Andes and paramo are presented.

Orchidaceae

Endemism

10.1007/s00606-014-1054-4

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Sobralia abadorum (Orchidaceae) - a new orchid species from Peru

Biodiversity Research and Conservation (2009)

Dariusz L. Szlachetko Magdalena Dudek Marcin Górniak Joanna Mytnik‐Ejsmont Ricardo Rodríguez Fernández

Sobralia abadorum (Orchidaceae) - a new orchid species from Peru Sobralia Ruiz & Pav. is one of the largest genus in Orchidaceae. It comprises about 150 species distributed from Mexico to Bolivia. In this paper, a new species of Sobralia from Peru, S. abadorum , is described and illustrated. Its taxonomic affinity is briefly discussed. An analysis of ITS sequences indicates an isolate position of this new species.

Orchidaceae

10.2478/v10119-009-0018-y

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Veyretella flabellata (Orchidaceae, Habenariinae), a new species from Gabon

Dariusz L. Szlachetko Hanna B. Margońska Joanna Mytnik‐Ejsmont

Habenaria hetaerioides from Gabon is unique amongst Habenariinae by its habit, similar to the members of the subtribe Goodyerinae (Spiranthoideae) rather than to any other Orchidoideae sensu Szlachetko (1995). This character is reflected in the specific epithet: hetaerioides means resembling Hetaeria, a Goodyerinae genus found in African tropics. Habenaria hetaerioides has been placed in the genus Cynorkis (Szlachetko 1995), but it does not fit there. After detailed studies of its gynostemium and flowers it became clear that it should be separated from both Cynorkis and Habenaria. Szlachetko and Olszewski (1998) established the genus Veyretella for H. hetaerioides. While revising herbarium materials for the Orchidaceae volume of the Flore du Gabon project we came across a specimen, which belongs to Veyretella but differs from the other species of the genus.

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