Based on analyses carried out with plant material found in mummy shrouds preserved in the archaeological museum El Museo Canario, a putatively extinct new species of Ruta (Rutaceae) was identified and is described here as R. museocanariensis. The mummies were found in the funerary sites of Acusa and the Barranco de Guayadeque on Gran Canaria, Canary Islands, Spain. This article discusses taxonomic relationships with other species of the genus, aspects of colonization and evolutionary processes on islands. The archaeological plant material consists of vegetative and reproductive branches with leaves, remains of flowers and capsules. Several morphological traits, especially the type of fruits, establish a clear difference between Ruta species from Gran Canaria and the mainland (dehiscent) and species from the W Canary Islands (indehiscent). The discovery of R. museocanariensis, with dehiscent fruits, suggests that indehiscence is a post-colonization evolutionary process in the Canary Islands. It also supports a stepping-stone model of inter-island colonization with Gran Canaria as its starting point, in agreement with the age of the islands and to some extent with their distance from the mainland.

Citation: Marrero-Rodríguez Á., Vidal-Matutano P., Delgado-Darias T., Jaén-Molina R., Morales-Mateos J., Alberto-Barroso V. & Velasco-Vázquez J. 2023: Can material of a putatively extinct new species of Ruta (Rutaceae) preserved with mummies provide new knowledge about evolution in the Canary Islands flora? – Willdenowia 53: 5–23.

Version of record first published online on 7 February 2023 ahead of inclusion in April 2023 issue.

In this study, we provide a new analysis on strict-endemic vascular plant taxa of Algeria and discuss their taxonomic diversity, geographical distribution and conservation status, based on a large literature review and our own field observations. Overall, 248 taxa (species, subspecies and varieties) are currently considered as Algerian endemics, from 41 families and 128 genera. They constitute about 6.3% of the total known flora of Algeria. The northern floristic regions are richer in endemic species: K1, K2, AS3, C1+C2 and O1 are by far the richest floristic regions for strict-endemic taxa, highlighting the importance of their mountain ranges. Most (59%) of the endemic plants have a narrow geographical distribution range (range-restricted). An overview of the IUCN conservation status of the Algerian endemics indicates that only 16 taxa (6.4%) are evaluated, out of which 5.6% of the taxa are threatened. Overall, 44% of the Algerian endemics are legally protected and 43% are included in the protected areas network. Finally, we focus on the shortfalls of knowledge that could orient further research on endemism data in Algeria. They concern taxonomic, chorological or conservation figures and above all the actual presence of the endemic species. It is, therefore, urgent to carry out targeted field expeditions in order to find and re-collect these species, most of which are strictly localized and have probably never been searched or found for 60 years to over a century.

Citation: Meddour R Sahar O & Jur S 2023: New anal sis of the endemic vascular lants of Al eria their diversit distribution pattern and conservation status. – Willdenowia 53: 25–43.

Version of record first published online on 21 March 2023 ahead of inclusion in April 2023 issue.

Thirteen species of Friesodielsia Steenis (Annonaceae) and 11 representatives of related genera were included in molecular phylogenetic analyses using up to six plastid DNA regions (psbA-trnH, trnL-trnF intergenic spacers; trnL intron; matK, ndhF, rbcL exons). The results support the recognition of a new species, F. lalisae Damth., Baka & Chaowasku from Narathiwat, S Thailand, as belonging to one of the two major clades of Friesodielsia. The members of this clade show outer petals that separate at anthesis and have a concave basal portion, while members in the other major clade exhibit outer petals that separate early during developmental stages and have a flat base. Friesodielsia lalisae is described and illustrated. It is most morphologically similar to F. argentea (J. Sinclair) Steenis and F. glauca (Hook. f. & Thomson) Steenis but differs from the two by having dissimilar sepal shape, higher proportion of inner petal to outer petal length and longer inner petals. The new species additionally differs from the former by having different leaf base and from the latter by having denser indumentum on young twigs and shorter flowering pedicels. Narathiwat, a province to which the new species is endemic, seems to be one of the most underexplored areas in Thailand as evidenced by a number of species described based on recent material. The conservation status of the new species is provisionally assessed as Critically Endangered.

Citation: Damthongdee A., Khunarak N., Kaeokula S., Saengpho C., Wiya C., Ue-aree P., Baka A., Aongyong K. & Chaowasku T. 2023: Molecular phylogenetic and morphological support for the recognition of Friesodielsia lalisae (Annonaceae) a new species from S Thailand. – Willdenowia 53: 45–55.

Version of record first published online on 10 April 2023 ahead of inclusion in April 2023 issue.

This is the sixteenth of a series of miscellaneous contributions, by various authors, where hitherto unpublished data relevant to both the Med-Checklist and the Euro+Med (or Sisyphus) projects are presented. This instalment deals with the families Caryophyllaceae, Compositae, Euphorbiaceae, Gramineae, Iridaceae, Leguminosae, Malvaceae, Portulacaceae, Rosaceae, Solanaceae and Umbelliferae. It includes new country and area records and taxonomic and distributional considerations for taxa in Bromus, Datura, Daucus, Erigeron, Euphorbia, Iris, Minuartia, Paspalum, Portulaca, Sida and Vigna, and a new combination in Prunus.

Citation

For the whole article: Raab-Straube E. von & Raus Th. (ed.) 2023: Euro+Med-Checklist Notulae, 16. – Willdenowia 53: 57–77. https://doi.org/10.3372/wi.53.53104

For a single contribution (example):

Kunev G. Petrova G. & Pachedjieva K. 2023: Minuartia globulosa (Labill.) Schinz & Thell. – Pp. 58–59 in: Raab-Straube E. von ., . . . & Raus Th. (ed.), Euro+Med-Checklist Notulae, 16. – Willdenowia 53: 57–77.

Version of record first published online on 9 May 2023 ahead of inclusion in April 2023 issue.

In the tropical Americas, the Orthosiinae (Apocynaceae) comprises plant species with small but intricate flowers and harbours a tremendous, still understudied diversity currently classified in four genera, Jobinia, Monsanima, Orthosia and Scyphostelma. In this study, we describe and illustrate four new species of Scyphostelma: S. bolivianum, S. gracile, S. rotorum and S. solomonii, based on specimens collected in Bolivia and Peru. Phylogenetic analysis places S. bolivianum and S. gracile in a clade with S. harlingii, a species from southern Ecuador and central Peru, together as sister clade to the rest of Scyphostelma. Due to the size of flowers and the long-filiform peduncles and pedicels, we consider the two new species S. rotorum and S. solomonii and the new combination S. erikseniae a part of the S. harlingii group, for which an identification key is presented. Furthermore, four species names are lectotypified and six new combinations in Scyphostelma are made: S. fasciculiflorum, S. jaramilloi, S. purpurascens, S. quitense, S. stenospira and S. unguiculatum.

Citation: Pineda Y. M., Keller H. A., Balderrama-Torrico J. A., Meve U., Nürk N. M. & Liede-Schumann S. 2023: Phylogenetics in Scyphostelma (Apocynaceae: Orthosiinae) and description of new species. – Willdenowia 53: 83–112.

Version of record first published online on 11 September 2023 ahead of inclusion in August 2023 issue.

En las Américas tropicales, Orthosiinae (Apocynaceae) comprende especies de plantas con flores pequeñas pero complejas y alberga una alta diversidad, aún poco estudiada, actualmente clasificada en cuatro géneros: Jobinia, Monsanima, Orthosia y Scyphostelma. En este estudio, describimos e ilustramos cuatro especies nuevas de Scyphostelma: S. bolivianum, S. gracile, S. rotorum y S. solomonii, con base en especímenes recolectados en Bolivia y Perú. El análisis filogenético ubica a S. bolivianum y S. gracile en un clado con S. harlingii, una especie del sur de Ecuador y el centro de Perú, juntas como clado hermano del resto de Scyphostelma. Debido al tamaño de las flores y a los pedúnculos y pedicelos filiformes largos, consideramos a las dos nuevas especies S. roturum y S. solomonii y la nueva combinación S. erikseniae una parte del grupo S. harlingii, para el cual se presenta una clave de identificación. Además, se lectotipifican cuatro nombres de especies y se realizan seis nuevas combinaciones en Scyphostelma: S. fasciculiflorum, S. jaramilloi, S. purpurascens, S. quitense, S. stenospira y S. unguiculatum.

Book details: Fischer E. & Müller K.: Syllabus of plant families. Adolf Engler's Syllabus der Pflanzenfamilien. 13^th edition by Wolfgang Frey. Part 5/1. Magnoliopsida (Angiosperms) p.p.: subclass Magnoliidae p.p.: Lilianae p.p. (Arecales to Zingiberales), Ceratophyllanae, subclass Rosidae p.p. (Ranunculanae to Berberidopsidanae). – Stuttgart: Borntraeger Science Publishers, 2022. – ISBN 978-3-443-01173-4. – Hardback, 18 × 25 cm, 1570 g, xii + 671 pages, 128 mostly coloured plates, language: English. – Price: EUR 219. – Available from https://www.schweizerbart.de/

Citation: Raus Th. 2023: Book review: Syllabus of plant families. Adolf Engler's Syllabus der Pflanzenfamilien. 13^th edition by Wolfgang Frey. Part 5/1. – Willdenowia 53: 79–81.

Version of record first published online on 9 May 2023 ahead of inclusion in April 2023 issue.