BYTEBIER, B. (2025). The correct name for the type species of the genus Benthamia (Habenariinae, Orchidaceae). Candollea 80: 1–5. In English, English abstract. DOI: http://dx.doi.org/10.15553/c2025v801a1

Louis-Marie Aubert Aubert Du Petit-Thouars (1758–1831) was one of the first botanists to describe several orchids, collected on the Mascarenes and Madagascar, in a seminal work published in 1822. Besides Linnean binomials, Du Petit-Thouars proposed alternative (Thouarsian) names that should be taken into consideration in certain nomenclatural situations, since they are proper binomials. One of the newly proposed species was Satyrium latifolium Thouars with the alternative Thouarsian name Satorkis latisatis Thouars. However, the former name is a later homonym and thus illegitimate. When Sprengel transferred the species to Habenaria Willd., the epithet latifolia was unavailable because of the existence of a previous homonym, and he coined the replacement name H. chlorantha Spreng., whereas he should have used the Thouarsian epithet latisatis. Lastly, Garay & Romero transferred the Sprengel name to the genus Benthamia A. Rich, which has hitherto been treated as the accepted name for this species and is furthermore the type species of the genus. However, in view of the fact that this is an illegitimate superfluous name, the correct binomial is proposed here as B. latisatis (Thouars) Bytebier.

LACK, H.W. & K. BÖHME (2025). The anonymous Almanach de flore: the garden of Malmaison in decline. Candollea 80: 7–19. In English, English abstract. DOI: http://dx.doi.org/10.15553/c2025v801a2

The Almanach de flore is an exceedingly rare print which has escaped the attention of the bibliographers of taxonomic literature. Published in Paris in two issues in 1817 and 1818, it contains among others the description and illustration of sixteen plants in cultivation in the garden of Malmaison, which was owned at that time by Napoleon's adopted son Eugène de Beauharnais. No author is given in this volume in duodecimo but evidence is presented that Étienne Soulange-Bodin, the intendant of Malmaison at the time, is most likely to have written the botanical texts. The twelve illustrations are colour prints, five of which are based on watercolours by Pancrace Bessa. Among the sixteen species described, a single one, Erica tamnoides Soul.-Bod. (Ericaceae), had his name validated in the Almanach de flore; it is regarded as a later synonym for E. fastigiata L. The spectrum of plants dealt with in this book adds significantly to our knowledge of the inventory of the garden at Malmaison which was then in decline and later given up and sold.

KLEIN, D.-P., R. MANGELSDORFF, R. LETSARA, R. SHTEIN & S.E. RODEWALD (2025). Two new species of Kalanchoe (Crassulaceae) from western Madagascar. Candollea 80: 21–31.In English, English and French abstracts. DOI: http://dx.doi.org/10.15553/c2025v801a3

Two new species of Kalanchoe Adans. (Crassulaceae) from the Tsingy de Bemaraha National Park, western Madagascar, are described and illustrated, supplemented by detailed notes on their habitat, ecology, and taxonomic position. Kalanchoe luteola D.-P. Klein, Letsara & Mangelsdorff is distinguished from other known representatives of Kalanchoe subg. Kalanchoe from Madagascar by its particularly long, creamy yellow corolla tube. The length of the corolla tube makes K. luteola the species with the longest known corolla tube of all Malagasy taxa in the genus. Kalanchoe manambolensis D.-P. Klein, Letsara & Shtein is distinguished from K. aromatica H. Perrier and K. bouvetii Raym.-Hamet & H. Perrier by its indumentum, its corolla length and proportions, and its leaf shape. Both new species' risk of extinction are preliminarily assessed as “Vulnerable” [VU] using the IUCN Red List Categories and Criteria.

KLEIN, D.-P., R. MANGELSDORFF, R. LETSARA, R. SHTEIN & S.E. RODEWALD (2025). Deux nouvelles espèces de Kalanchoe (Crassulaceae) de l'ouest de Madagascar. Candollea 80: 21–31.En anglais, résumés anglais et français. DOI: http://dx.doi.org/10.15553/c2025v801a3

Deux nouvelles espèces de Kalanchoe Adans. (Crassulaceae) du Parc National de Tsingy de Bemaraha, à l'ouest de Madagascar, sont décrites et illustrées, complétées par des notes détaillées sur leur habitat, leur écologie et leur position taxonomique. Kalanchoe luteola D.-P. Klein, Letsara & Mangelsdorff se distingue des autres représentants de Kalanchoe subg. Kalanchoe connus de Madagascar par son tube de corolle particulièrement long et jaune crème. La longueur du tube de la corolle fait de K. luteola l'espèce avec le plus long tube de corolle connu de tous les taxons malgaches du genre. Kalanchoe manambolensis D.-P. Klein, Letsara & Shtein se distingue de K. aromatica H. Perrier et K. bouvetii Raym.-Hamet & H. Perrier par son indumentum, la longueur et les proportions de sa corolle, et la forme de ses feuilles. Le risque d'extinction des deux nouvelles espèces est provisoirement évalué comme «Vulnérable» [VU] suivant les catégories et critères de la Liste rouge de l'UICN.

Hopkins, H.C.F. & J. Wajer (2025). Parkia timoriana (Leguminosae), its synonyms and their types, and the identity of Gleditsia javanica. Candollea 80: 33–52. In English, English abstract. DOI: http://dx.doi.org/10.15553/c2025v801a4

Parkia timoriana (DC.) Merr. (Leguminosae, Caesalpinioideae, Mimoseae), a large forest tree distributed from north-east India to north-west New Guinea, has had two other names commonly applied to it at different times: P. roxburghii G. Don, based on a type from north-east India, and P. javanica (Lam.) Merr., with a type originating from Java. In addition, it has sometimes been referred to by names that belong to an African species in this genus, P. biglobosa (Jacq.) R. Br. ex G. Don (syn. P. africana R. Br.), which is clearly distinct. The history of name changes and confusion with the African and two other Asian species are outlined. We reiterate the doubts previously expressed by Nielsen and others about the identity of an illustration of seeds and a small, sterile plant in a pre-Linnaean work by Commelin, which is the lectotype of Gleditsia javanica Lam., the basionym of Parkia javanica. This drawing does not accurately represent the morphology of P. timoriana when compared with specimens of seedlings of verified identity, although the local name given by Commelin, “kaduwang”, does refer to this species. Several additional taxonomic names that have not been widely used also apply to P. timoriana; among them, Mimosa peregrina sensu Blanco, non L., is a misapplied name. A sheet at L is identified here as the type of Parkia grandis Hassk., and P. calcarata Gagnep. is transferred to the synonymy of P. speciosa Hassk. and a lectotype is designated.

Submitted on November 25, 2024 – Accepted on January 31, 2025 – First published online on March 12, 2025

Feltes González, O.A., J.F. Mongelós Camacho, P.R. Marchi Brusquetti & A.T. Gabriaguez Ayala (2025). First record of Luetzelburgia sotoi (Fabaceae) for the Paraguayan flora. Candollea 80: 53–56. In Spanish, English and Spanish abstracts. DOI: http://dx.doi.org/10.15553/c2025v801a5

Luetzelburgia sotoi D.B.O.S. Cardoso, L.P. Queiroz & H.C. Lima, a species described from Santa Cruz Department in Bolivia, is recorded for the first time in Paraguay. A succinct morphological description is provided, as well as data concerning phenology, ecology, distribution, and conservation status in Paraguay.

Feltes González, O.A., J.F. Mongelós Camacho, P.R. Marchi Brusquetti & A.T. Gabriaguez Ayala (2025). Primer registro de Luetzelburgia sotoi (Fabaceae) para la flora del Paraguay. Candollea 80: 53–56. En español, resúmenes en inglés y español. DOI: http://dx.doi.org/10.15553/c2025v801a5

Luetzelburgia sotoi D.B.O.S. Cardoso, L.P. Queiroz & H.C. Lima, especie descrita del departamento de Santa Cruz, Bolivia, se cita por primera vez para el Paraguay. Se presenta una breve descripción morfológica, así como datos de fenología, ecología, distribución y estado de conservación en Paraguay.

Submitted on Octomber 1, 2024 – Accepted on February 19, 2025 – First published online on March 12, 2025