ABSTRACT Pennisetum (80–140 species) and Cenchrus (16–22 are closely related genera of Paniceae, both distributed in tropical sub‐tropical regions. The distinction between is not clearly defined, currently no comprehensive taxonomic treatment available for either genus. Chloroplast DNA sequence data ( rpl16, trnL‐F region) were analyzed to test their monophyly, species relationships, infrageneric classifications. Phylogenetic analyses individual genomic regions, a combined dataset, including...

The Neotropical genus Tillandsia (Bromeliaceae) is an excellent model system for macroevolutionary and biogeographic studies owing to its remarkable species diversity (ca. 650 spp.) varied morphological ecological adaptations epiphytic saxicolous habitats. Recent phylogenetic have greatly improved our knowledge about generic limits infrageneric classification of Tillandsia. These identified two clades characterized by a distinct geographic distribution: (i) North Central American clade that...

Abstract In its broadest sense, Scirpus consists of a heterogeneous assemblage up to 250 species, but modern circumscriptions suggest that only 40–50 species are part the genus. Despite narrower definition genus, atypical continue be segregated from with common pattern being removal Southern Hemisphere taxa other genera and tribes. South America, morphology remaining also suggests they not closely related s.str., most these known their types, making detailed analysis generic affinities...

Full plastome sequences for land plants have become readily accessible thanks to the development of Next Generation Sequencing (NGS) techniques and powerful bioinformatic tools. Despite this vast amount genomic data, some lineages remain understudied. from highly diverse (>1,500 spp.) subfamily Tillandsioideae (Bromeliaceae, Poales) been published only three (i.e., Guzmania, Tillandsia, Vriesea) out 22 currently recognized genera. Here, we focus on core Tillandsioideae, a clade within...

Abstract This is the second study of a series thorough studies into taxonomy and systematics Carex in South America. Here, we present systematic placement, taxonomic account, formal typifications, summarized distributions for 31 accepted America species subg. Psyllophorae, all belonging to sect. Junciformes. We have conducted an exhaustive revision literature, more than 400 specimens from 32 North American European herbaria been studied, Sanger phylogenetic with four DNA regions morphometric...

Notas taxonómicas y de distribución Carex (Cyperaceae) en el Neotrópico. Presentamos datos relevantes acerca la taxonomía 20 especies del género Neotrópico(de region Caribe a Patagonia). Aportamos un total 19 registros nuevos, dos ellos para hasta momento no registradas Sudamérica, diez citadas como novedad diferentes países siete aquí reportadas novedades regionales Argentina, Bolivia Chile. Lectotipificamos nueve nombres (C. brehmeri, C. catharinensis, ecuadorica, firmicaulis, fuscula,...

Abstract This is the first work of a series thorough studies into taxonomy and systematics Carex in South America. Here, we present systematic placement, biogeographic insights, taxonomic accounts, formal typifications summarized distributions for 24 species subgenus Vignea with androgynous spikes continent. We performed phylogenetic study using barcode markers ETS, ITS matK to check placement 22 these on previous tree > 1000 spp. examined 600 specimens from 38 herbaria conducted an...

Carex subgenus Psyllophorae is an engaging study group due to its early diversification compared most lineages, and remarkable disjunct distribution in four continents corresponding three independent sections: sect. Western Palearctic, Schoenoxiphium Afrotropical region, Junciformes South America (SA) SW Pacific. The latter section mainly distributed Patagonia the Andes, where it one of few groups with a significant situ diversification. We assess role historical geo-climatic events...

Abstract Tillandsia subgenera Diaphoranthema and Phytarrhiza s.s. are closely related epiphytic epilithic plants adapted to xeric habitats in the Americas. Several studies suggested that subgenus xerophytic species of should not be segregated into different subgenera. In recent phylogenetic analyses Tillandsioideae, s.l. is revealed as highly polyphyletic, showing a lineage Diaphoranthema. Moreover, evolution neotenic traits, selfing breeding system polyembryony have yet fully investigated...

Tillandsia uruguayensis (Bromeliaceae), a new xeromorphic and epilithic species from northern Uruguay, is described. The belongs to the subgenus Aerobia morphologically related T. lorentziana. This work provides detailed morphological description, as well information on distribution, habitat, phenology, conservation status. Additionally, main differences between other similar are discussed. Illustrations, images distribution map supplied.

A taxonomic revision of the genus Tillandsia (Bromeliaceae) from Uruguay is here presented based on examination herbarium specimens, field surveys, and an extensive analysis literature. Nineteen taxa are recognized: 17 species, one subspecies, natural hybrid. new identification key for all species occurring in country presented. Data nomenclature (correct names, types, synonyms used Uruguay) provided each taxon, along with detailed morphological descriptions, vernacular distribution habitat...

Abstract We describe and illustrate Mastigostyla coronata, a new species of Iridaceae from the high Andes Jujuy (Argentina), morphologically similar to vargasii. The inclusion this in is supported by phylogenetic analysis based on plastid markers. also present morphological comparison among sub-acaulescent (including Cardenanthus), key those species.

Se cita por primera vez para la Provincia de Buenos Aires Tillandsia myosura, coleccionada en las inmediaciones del arroyo Pereyra, Parque Provincial y Reserva Biosfera Pereyra Iraola (Partido Berazategui, Aires, Argentina). Esta especie, conocida hasta el presente sólo sur Uruguay provincias Catamarca, Córdoba, Jujuy, La Rioja, Pampa, Mendoza, Salta, San Juan, Luis, Santiago Estero Tucumán Argentina es citada ampliándose su límite distribución. En trabajo se describe e ilustra presenta una...

Se citan por primera vez para la flora de Uruguay a Tillandsia capillaris Ruiz & Pav. (= T. f. hieronymi (Mez) L.B. Sm.) y loliacea Mart. ex Schult. es registrada como una especie introducida espontánea ciudad Montevideo, mientras que citada nativa del noroeste país. presenta el primer registro tricholepis Baker ambientes naturales Uruguay, confirmando estatus nativa. reporta hallazgo reciente xiphioides Ker Gawl. luego 73 años sin ser colectada en Uruguay. Este trabajo provee...

A new epilithic subspecies of Tillandsia bandensis (Bromeliaceae) is described based on the analysis herbarium specimens as well living plant material in field and cultivation. The differs from typical one mainly by its bigger more lepidote reproductive structures. Detailed morphological descriptions for T. are provided, images, illustrations data distribution, habitat, phenology conservation status here described. Lectotypes bandensis, var. intermedia recurvata majuscula designated.

We describe a new species of Sicydium endemic to Argentina. Relationships and differences with morphologically geographically closest are discussed, including key for material staminate flowers all Sicydium, an illustration the species.

Tillandsia bryoides was sunken into the synonymy of T. tricholepis because all elements lectotype ( P. Lorentz 128 , BM) belong to latter species. However, there is a taxon subgen. Diaphoranthema from central Peru, Bolivia, and northwestern Argentina, with yellow, sessile, solitary flowers glabrous floral bract, which has been known as . This paper provides valid name for that taxon, an illustration, distribution data, discussion relationships its morphologically closest