An updated classification of Orchidaceae

The Botany of the Guayana Highland--Part XI

Vriesea is the second-largest genus of Bromeliaceae, with more than 280 species. Although the genus is traditionally circumscribed as a natural group, all phylogenetic analysis undertaken indicates its polyphyletic origin. Several groups of Vriesea species are difficult to define taxonomically based on morphological characters only, including the Vriesea corcovadensis group, composed of 11 species. We evaluated the monophyly and relationships among the species of the V. corcovadensis group through a maximum parsimony morphological analysis. The data set contains information about all 11 species placed in this group; in addition, species from six related genera of Tillandsioideae were included, for a total of 23 terminal taxa. Two separate analyses were carried out, the first containing 54 characters (42 from external morphology and 12 from leaf anatomy), and the second containing only characters from external morphology. The purpose of this distinction was to evaluate the phylogenetic signal of t...

https://bioone.org/journals/Systematic-Botany/volume-37/issue-3/036364412X648599/A-Morphological-Cladistic-Analysis-of-the-Vriesea-corcovadensis-Group-Bromeliaceae/10.1600/036364412X648599.pdf

A Morphological Cladistic Analysis of the Vriesea corcovadensis Group (Bromeliaceae: Tillandsiodeae), with Anatomical Descriptions: New Evidence of the Non-Monophyly of the Genus

Systematics of Tibouchina and allies (Melastomataceae: Melastomateae): A new taxonomic classification

Three new species of Angiosperms have been found in four short collection trips to the same protected reserve-"Estacao Ecologica Estadual de Wenceslau Guimaraes"-and neighboring areas in the Atlantic Forest in the south of the Brazilian state of Bahia. These new species belong to three genera from three distinct lineages in the family Melastomataceae: Huberia, Meriania and Physeterostemon. The description of these species represent a good example of a Linnean shortfall, i.e., the absence of basic knowledge about the biodiversity in the area, as well as in tropical forests as a whole. The description of these probably endemic species per se is a signal that this area deserves more attention regarding research and policies, but its consequences go farther: this area has a relevant role as a phylogenetic (both genetic and morphological) stock, and thus is also valuable as a phylogenetic conservation priority.

Angiosperms and the Linnean shortfall: three new species from three lineages of Melastomataceae at one spot at the Atlantic Forest.

From 1990 to 2006, 2,875 new angiosperm species were described in Brazil, including 280 newBromeliaceae species. This publication rate is considered to be a useful indicator of floristic richness andalso reveals the huge gaps in our knowledge of species that make up Brazilian biomes and the importanceof taxonomy as a basic tool to assess biodiversity and conservation. The goal of modern taxonomists is ina race against time ordained by an unprecedented rate of global biodiversity loss, and therefore collaborationis vital to successfully close these gaps. This paper is the result of a broad cooperative research effortundertaken specifically to provide basic data on the identity of new components of Brazilian biologicaldiversity. The authors describe and illustrate 22 new Bromeliaceae species from three subfamilies: Bromelioideae - Aechmea guaratingensis, A. paratiensis, A. rubroaristata, Cryptanthus capitellatus, C. venecianus, C. viridovinosus, Hohenbergia aechmeoides, H. arcuata, H. barbarespina, H. reconcavensis, Nidularium alegrense, Orthophytum teofilo-otonense, O. cearence; Pitcairnioideae - Dyckia espiritosantensis, D. nana, Pitcairnia capixaba; Tillandsioideae - Tillandsia castelensis, Vriesea euclidiana, V. fontanae, V. multifoliata, V. sanctateresensis and V. teresopolitana.

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Miscellaneous new species in the Brazilian Bromeliaceae

We describe and illustrate 14 miscellaneous new Bromeliaceae species from the Brazilian states of Bahia, Espirito Santo, Minas Gerais, Rio de Janeiro and Sao Paulo: Aechmea ituberaensis , A. pendulispica , Alcantarea acuminatifolia , A. occulta , Cryptanthus aracruzensis , C. ilhanus , C. rigidifolius , C. tabuleiricola , C. viridipetalus , Neoregelia desenganensis, N. insulana , N. watersiana, Vriesea saltensis , and V. sanctaparecidae . The morphological affinities of the new taxa are also discussed.

Miscellaneous New species of Brazilian Bromeliaceae

Background Isolated monoliths of granitic and/or gneissic rock rising abruptly from the surrounding landscape are known as inselbergs Dome-shaped inselbergs are common throughout the Atlantic Forest in south-eastern Brazil, a region known as Sugarloaf Land (SLL) This study aimed to create the first checklist of vascular plant species occurring on lowland inselbergs in SLL, with a focus on vegetation islands We used information from online databases, our own field sampling and data from previously-published studies We found 548 vascular plant species (505 angiosperms; 43 ferns and lycophytes) belonging to 69 families and 212 genera Of all identified species, 536 are native and 12 are naturalised New information We updated the information currently available in Flora do Brasil 2020, as 59% of the angiosperms and 63% of the ferns and lycophytes on our checklist were not previously characterised as occurring on rock outcrops As a first step towards generating a Virtual Herbarium of lowland inselberg vascular plants, we added barcode vouchers with images available online for 75% of the total number of vascular species In the official lists of endangered species, 115 angiosperms and five ferns and lycophytes are mentioned However, the conservation status of many species have not yet been evaluated (77% angiosperms; 88% ferns and lycophytes), thus this list is an important step towards their conservation The information provided herein is essential for management programmes related to rock outcrops in Brazil as they are facing serious threats to conservation

Sugarloaf Land in south-eastern Brazil: a tropical hotspot of lowland inselberg plant diversity.

The authors describe and illustrate 14 new Bromeliaceae species: Aechmea avaldoana , Ae. gregaria , Ae. timida, Alcantarea lanceopetala, A. nana , A. recurvifolia , Billbergia matogrossensis, Bromelia amplifolia , Cryptanthus walkerianus , Encholirium viridicentrum , Vriesea bifida , V. lilliputiana , V. magnibracteata and V. tubipetala .

/pdf/miscellaneous-new-species-of-brazilian-bromeliaceae-iii-3iduhqpxf9.pdf

Miscellaneous New Species of Brazilian Bromeliaceae – III

Three new species of Pleroma are described: Pleroma costatocalyx, P kollmanniana and P subsessilis All three species are morphologically similar to Tibouchina heteromalla and related species, especially due to the shrubby habit, elongated inflorescences, flowers with purple petals, but white at their bases, antesepalous stamens with the connective covered with glandular trichomes, and by the short (ca 4–5 mm long), curved style All three species differ from T heteromalla by the styles with trichomes (vs glabrous in T heteromalla ) Pleroma costatocalyx also differs from T heteromalla by the longitudinally costate hypanthium, P kollmanniana by the strongly winged branches, bigger leaves, and shorter petioles, and P subsessilis by the concolorous leaves and antepetalous stamens with glabrous connective and appendages All new species grow in vegetation associated with inselbergs and are endemic to Espirito Santo state, despite the fact that one of them ( P costatocalyx ) was collected very close to the border with Minas Gerais, where it probably occurs We present descriptions, taxonomic comments, illustrations, and conservation status assignments for the new species

Ludovic Jean Charles Kollmann

Papers

Miscellaneous new species in the Brazilian Bromeliaceae

Miscellaneous New species of Brazilian Bromeliaceae

Sugarloaf Land in south-eastern Brazil: a tropical hotspot of lowland inselberg plant diversity.

Miscellaneous New Species of Brazilian Bromeliaceae – III

Three new species of Pleroma (Melastomataceae) from Inselbergs of Espírito Santo, Brazil