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Artigos
Publicados em Periódicos
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P030-00 Estrutura do pericarpo
e da semente de Astronium graveolens Jacq. (Anacardiaceae)
com notas taxonômicas Carmello-Guerreiro SM, Paoli AAS Revista
Brasileira de Botânica 23(1): 87-96, 2000. *E-mail: smcg@unicamp.br
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| P031-00 Pollination
biology of Piperaceae species in southeastern Brazil Figueiredo
RA, Sazima M* Phenology, floral biology and breeding system
are described for 14 Piperaceae species at two sites covered
by semi-decidouous fores in southeastern Brazil. Flowering occurred
continuously throughout the year, with a peak during the windy
months. All species had minute odorous and nectarless flowers
visited by insects; five of them showed a substantial degree
of self-compatibility, and one was andromonoecious. Seven species
were wind pollinated, and three were exclusively pollinated
by insects. Flower visitors were mainly hoverflies and bees.
Annals of Botany 85: 455-460, 2000. IF = 1.326 *E-mail: msazima@unicamp.br |
| P032-00 Two
new Melastomataceae from São Paulo, Brazil Goldenberg R, Martins
AB* The genus Meriania Swartz has 74 species distributed from
Southern Mexico and West Indies to Southeastern Brazil (Renner
1993, Almeda 1993). Only tree species occur in the state of
São Paulo, all along the northern portion of the "Serra do Mar".
The genus Miconia Ruiz & Pav. has ca. 1.060 species (Goldenberg
in prep.), distributed from Southern Mexico to Southern Brazil,
Paraguay and Northern Argentina. Martins et al. (1996) listed
53 species for São Paulo, occurring in almost all vegetation
types in the state. Two new species were found during the preparation
of the treatments of Miconia and Meriania for the "Flora Fanerogâmica
do Estado de São Paulo". Both were collected on slopes between
100 and 900m above sea level in the "Parque Estadual da Serra
do Mar, Núcleo de Picinguaba", at the eastern tip of São Paulo,
near the Rio de Janeiro state border. Kew Bulletin 54: 465-470,
2000. *E-mail: amartins@unicamp.br
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| P033-00 Morfologia
dos tricomas em Tibouchina sect. Pleroma (D. Don) cogn. Guimarães
PJF, Martins AB* (Morphology of trichomes in Tibouchina section
Pleroma (D. Don) Cogn. (Melastomataceae). The Melastomataceae
display greater trichome diversity. Dr. Wurdack, in his Atlas
of hairs, recognized 46 types of trichomes for the Neotropical
Melastomataceae through the SEM, and referred 17 of them to
the genus Tibouchina. Th e trichomes morphology has been extensively
used in the delimitation of the taxa in Melastomataceae, as
well as in previous studies by Cogniaux, the monograph of Brazilian
Melastomataceae published in 1885. The morphology of the trichomes
was essential for the delimitation of several species in Tibouchina
section Pleroma. The use of SEM provided the best characterization
of the 15 different types of trichomes recognized among the
41 species examined. These were described based on the morphological
appearance, both OM and SEM, and illustrated by scanning electron
micrographs and photomicrographs. Brazilian Archives of Biology
and Technology 42(4): 485-493, 2000. IF = 0.065 *E-mail: amartins@unicamp.br |
| P034-00 Diversity
of plant uses in two Caiçara communities from Atlantic Forest
coast, Brazil Hanazaki N, Tamashiro JY*, Leitão Filho HF, Begossi
A Biodiversity and Conservation 9(5): 597-615, 2000. IF = 1.065
*E-mail: tamashi@unicamp.br
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| P035-00 Evolution
of the Brazilian phytogeography classification systems: implications
for biodiversity conservation Joly CA*, Aidar MPM, Klink CA,
McGrath DG, Moreira AG, Moutinho P, Nepstad DC, Oliveira AA,
Pott A, Rodal MJN, Sampaio EVSB Ciência e Cultura 51 (5/6):
331-348, 2000. *E-mail: cjoly@unicamp.br
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| P036-00 New
combinations and a new species in Brazilian genus Chaetostoma
DC. (Microlicieae: Melastomataceae) Koschnitzke C, Martins AB*
Four new combinations (Chaetostoma albiflorum, C. Cupressinum,
C. Selagineum, C. Stenocladon), are proposed and a new species,
Chaetostoma flavum, endemic to the Chapada dos Veadeiros, Goiás,
Brazil is described. The new species can be distinguished by
its 4-5 locular ovary and antesepalous stamens with prolonged
appendages. Novon 9(2): 202-204, 2000. IF = 0.215 *E-mail: amartins@unicamp.br
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| P037-00
Three new Brazilian Species in the Genus Marcetia (Melastomataceae,
Melastomataceae) Martins AB* Novon 10: 224-229, 2000. IF = 0.215
*E-mail: amartins@unicamp.br
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| P038-00 A new
species of Marcetia (Melastomataceae) from Brazil Martins AB*,
Woodgyer EM Marcetia is a neotropical genus that can be distinguished
within the Melastomeae (= Tibouchineae) principally by the combination
of tetramerous flowers, eglandular leaves and simple anthers
which lack both basally prolonged connectives and ventral appendages.
With just one exception, the genus is endemic to Brazil where
its 28 species are of very limited distribution, occurring mainly
in areas of campo rupestre vegetation. In 1980 a long-term collaborative
programme was established between the Royal Botanic Gardens,
Kew and the University of São Paulo, resulting in a series of
successful joint expeditions to the mountains of Minas Gerais
and Bahia. These expeditions have disclosed several new species
of Marcetia, one of which is described here. Kew Bulletin 55:189-193,
2000. *E-mail: amartins@unicamp.br
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| P039-00 Aspectos
da germinação e do crescimento de Callophyllum brasiliense (Clusiaceae)
, uma espécie típica de locais inundados Marques MCM*, Joly
CA* Seed germination and growth of Calophyllum brasiliense (Clusiaceae),
a typical species of flooded forests). Soil waterlogging and
the subsequent reduction in the amount of oxygen available for
the respiration of the root system selected, along the evolutive
process, plants able to thrive in seasonally or permanently
flooded areas. In neotropical plants there are many types of
adaptations to flooding. In this paper we present the results
of the work carried out with seeds and seedlings of C. brasiliense
subjected to hypoxia during germination and early development.
C. brasiliense seeds are not photoblastic and survive up to
three months burred in a water saturated substrate, but germination
only takes place in well-drained soils. Soil waterlogging does
not inhibit seedling growth and there are no apparent morphological
changes of the aerial part of flooded plants. New and aerated
roots that make possible the plant survival, replace old and
spoiled roots. In contrast with many species typical of flood-prone
areas which growth is inhibited by oxygen stress, C. brasiliense
seedlings seems to be well adapted to its waterlogged environment.
The species wide geographic distribution, always associated
with areas subjected to soil waterlogging, is probably linked
to the opportunistic character shown by C. brasiliense regarding
seed dispersion, the absence of photoblastic response as well
as seed and seedling capacity of surviving and growing in waterlogged
soils. Acta Botanica Brasil. 14(1): 113-120, 2000. *E-mail:
cjoly@unicamp.br |
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