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Author: search.filters.author.Martín E. Timaná

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    Rediscovery and confirmation of the presence of Pycnophyllum macropetalum (Caryophyllaceae) for the Argentinian flora
    (Instituto de Botanica Darwinion, 2024-07-29)
    Pycnophyllum macropetalum Matff. is a species originally described for the Andes of Chile which has also been collected in Bolivia and in Argentina. Presence of P. macropetalum in Argentina is based on a single sterile specimen collected in 1945. For this reason, and because P. macropetalum is morphologically very similar to P. molle, the species was excluded from the Argentinian Flora; however, recently, a population of P. macropetalum has been found in the province of Jujuy (Argentina). Therefore, the objective of this work is to describe and to illustrate this species, to provide environmental notes about the habitat where it was found, and to provide a map of the geographic distribution of the species for Argentina, Bolivia and Chile. Furthermore, based on molecular analyzes of the collected specimen, the morphological identification is corroborated, and the monophyly of the genus is confirmed. Finally, a dichotomous key is provided to differentiate the four Pycnophyllum species recorded in Argentina.
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    Honoring Jeanne Baret: Baretia lanata Timaná, comb. nov. (Caryophyllaceae), a New Endemic Genus and Species Combination for the Flora of Chile
    (Museum National d'Histoire Naturelle, 2023-12-11)
    Baretia Timaná, gen. nov., a new genus in the plant family Caryophyllaceae from central Chile, is proposed and described. The new monospecific genus differs from other members in the family by possessing a combination of characters that include dioecy, a densely albo-lanuginose indumentum cover, absence of stipules, strongly perigynous flower, a well-developed receptacular cup, style undivided with a slightly capitate stigma, and an indehiscent, one-seeded fruit. The genus includes a single species, Baretia lanosa (Phil.) Timaná, comb. nov. and honors French botanist and explorer Jeanne Baret, the first known woman to circumnavigate the globe as part of the Bougainville expedition around the world (1766-1769).