Banca de DEFESA: SAMARA SILVA DE MATOS AQUINO
Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.STUDENT : SAMARA SILVA DE MATOS AQUINO
DATE: 31/08/2022
TIME: 14:00
LOCAL: https://meet.google.com/wrn-fwaw-sop
TITLE:
Taxonomy of Neptunia Lour. (Caesalpinioideae) in the Americas and environmental education with Leguminosae in the Caatinga dry forest
KEY WORDS:
Caatinga, Mimosoid Clade, Environmental Education, Fabaceae, taxonomy.
PAGES: 130
BIG AREA: Ciências Biológicas
AREA: Botânica
SUBÁREA: Taxonomia Vegetal
SPECIALTY: Taxonomia de Fanerógamos
SUMMARY:
Neptunia Lour. (Leguminosae-Caesalpinioideae) has a pantropical distribution with near 12 species. It is characterized by the heteromorphic inflorescences and yellow petaloid staminodes, often associated with flooded environments. Revisional studies for Neptunia date back over 50 years, demonstrating the need for taxonomic and nomenclatural updates, since the taxa present cryptic and polymorphic characters, leading to imprecisions in identifications, and consequently, cascading failure. The objectives of this thesis are: (1) to perform a classical taxonomic revision and morphological characterization of Neptunia in the Americas and (2) to develop an environmental education program, focused on the Leguminosae family, for the visitors and seed collectors in the Assú National Forest. For the 1st objective, collections were made following the usual methodology, as well as analysis in national and international herbaria. For the Americas, five species were revised, with comments, identification key, distribution data and illustrations. To clarify the nomenclatural history of the genus, we assigned lectotypes to six names: Neptunia depauperata, N. tenuis, N. pubescens, N. mazatlana, N. pubescens var. microcarpa and N. palmeri. and synonymization of N. amplexicaulis f. richmondii and N. gracilis f. glandulosa under N. amplexicaulis and N. gracilis, respectively. The proposal for environmental education aimed at valuing the flora of the caatinga, through the identification of trees, mainly Legumes, 92 individuals were marked and identified in the field, of which 13 species and 34 individuals of Leguminosae, and 58 individuals and 21 species belong to the families Anacardiaceae, Apocynaceae, Bignoniaceae, Bixaceae, Boraginaceae, Burseraceae, Cactaceae, Capparaceae, Combretaceae, Chrysobalanaceae, Euphorbiaceae, Malvaceae and Rhamnaceae. Educational signs about legumes and other species were developed and two options of trails were mapped, serving both students and researchers and parataxonomists. It is concluded that the present work has advanced the knowledge about Legumes and Neptunia, contributing to an increase in collections and a deepening of the knowledge of the taxonomy of the genus. Also, we could implement, in practice, strategies to combat plant blindness and to popularize science, promoting the caatinga’s flora.
COMMITTEE MEMBERS:
Presidente - 1755074 - LEONARDO DE MELO VERSIEUX
Interna - 1813882 - ALICE DE MORAES CALVENTE VERSIEUX
Interno - ***.994.504-** - RUBENS TEIXEIRA DE QUEIROZ - UFPB
Externa à Instituição - ANNELISE FRAZÃO NUNES - USP
Externa à Instituição - MARIA MARGARIDA DA ROCHA FIUZA DE MELO
Externa à Instituição - MARLI PIRES MORIM - JBRJ