25 research outputs found

    Sixty-four new records for the flora of Peru from rapid biological inventories in the Peruvian Amazon

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    Durante el perĂ­odo 2000 – 2016, se llevaron a cabo 15 inventarios biolĂłgicos en ĂĄreas remotas en el pie de monte andino y el llano amazĂłnico del PerĂș. En estos inventarios, 27 botĂĄnicos colectaron un total de 9397 especĂ­menes de plantas vasculares fĂ©rtiles. Hasta finales del 2017, mĂĄs de la mitad de estos especĂ­menes se han identificado a nivel de especie, de los cuales 64 especies y 2 gĂ©neros (Dicorynia y Monopteryx) representan nuevos registros para la flora del PerĂș. Si esta tasa de novedades se mantiene, el nĂșmero de registros nuevos en el material de los inventarios podrĂ­a aumentar, lo cual nos indica que aĂșn queda mucho por descubrir en la flora andino-amazĂłnica del PerĂș.Between 2000 and 2016 we carried out 15 rapid biological inventories in remote areas of the Andean foothills and Amazon basin in Peru. During these inventories, 27 botanists collected 9397 fertile vascular plant specimens. By the end of 2017, more than half of these specimens had been identified to species. Of the 2303 species identified to date, 64 species and 2 genera (Dicorynia and Monopteryx) are new records for the flora of Peru. If this rate of discovery proves typical, the number of new records for Peru in the rapid inventory material could increase, which indicates that there is still much to discover in the Peruvian flora

    Pseudolycopodiella carnosa

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    Pteridophyte

    The Andean Paepalanthus pilosus complex (Eriocaulaceae): a revision with three new taxa

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    A herbarium-based revision is provided for Paepalanthus pilosus and allies, five commonly confused species of cushion plants native to Andean paramo. These are placed in the recircumscribed Paepalanthus subsect. Cryptanthella Suess. The group includes P. pilosus, P. dendroides, and P. lodiculoides. An additional two species and one variety are newly described: Paepalanthus caryonauta, P. huancabambensis, and P. pilosus var. leoniae. The latter two are Peruvian endemics, while P. caryonauta is known from four countries, and has long been confused with other species. An additional, possibly undescribed taxon is noted from the Serrania de PerijĂĄ, Colombia. Five new synonyms and three lectotypes are proposed, and the common misapplication of some names is noted. Within the P. pilosus complex, species differences were found in timing of peduncle elongation, sex ratio, and leaf, perianth, diaspore and nectary morphology. Ecological differences are suggested by specimen data and a review of ecological literature. Descriptions, photographs and maps are provided for all species, as is a key to the groups of eriocaulaceous cushion plants from Andean South America

    The Systematics Of Paepalanthus Subg. Xeractis (eriocaulaceae).

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    A monographic treatment, based on field and herbarium studies, is provided for Paepalanthus subg. Xeractis. This represents the first monographic study conducted of this large genus since Ruhland's (1903) treatment. Subgenus Xeractis is distinguished by its involucral bracts usually exceeding the capitulum and by the male corollas hairy within. Some of its species are found to show markedly primitive characters such as leaflike bracts, deeply divided male corollas, and sepals with stomata. On the basis of floral characters, six species are removed from the subgenus. Five species, four varieties, and one form are newly described, with the total number of taxa recognized totalling 27 species, eleven varieties, and two forms. These are grouped into four newly described sections and two series, which are distinguished on the basis of habit, leaf anatomy, involucral bract color, and floral pubescence and pigmentation. In addition, 12 putative hybrids were collected in the field or identified from herbarium material. Substantial introgression was found in one of these hybrid cases. Paepalanthus subg. Xeractis is wholly endemic to the Serra do Espinhaco of Minas Gerais, Brazil, a mountain range about 370 km long, which supports high diversity and endemism in many angiosperm taxa. Most species have very small ranges, and the collective patterns of their distribution suggest a division of the Serra do Espinhaco into four floristic regions: the Diamantina plateau; the northern Serra do Cipo; the southern Serra do Cipo; and the southern Serra do Espinhaco. The species diversity is highest and the species distributions smallest in the very poor quartzitic soils of the Serra do Cipo. Within the Serra do Cipo, the species occurring in seasonally wet habitats on shallow or poorly drained soils are the most problematic, characterized by reticulate variation patterns, and otherwise showing indications of recent diversification.Ph.D.Biological SciencesBotanyUniversity of Michigan, Horace H. Rackham School of Graduate Studieshttp://deepblue.lib.umich.edu/bitstream/2027.42/127863/2/8612534.pd

    Revision and Redefinition of the Genus Rondonanthus Herzog (Eriocaulaceae)

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    Volume: 78Start Page: 441End Page: 45

    Synonymization of the Genera Comanthera and Carptotepala with Syngonanthus (Eriocaulaceae)

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    Volume: 78Start Page: 460End Page: 46

    DOCUMENTED CHROMOSOME NUMBERS 1996:4. CHROMOSOME NUMBERS OF CAMPANULACEAE. IV. MISCELLANEOUS COUNTS

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    Volume: 17Start Page: 519End Page: 52
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