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Taxonomic Revision of Spiranthera (Rutaceae)

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Author(s):
Brito, Lilian de Andrade ; Pirani, Jose Rubens
Total Authors: 2
Document type: Journal article
Source: SYSTEMATIC BOTANY; v. 47, n. 1, p. 20-pg., 2022-01-01.
Abstract

Spiranthera (Rutaceae, Galipeeae) is a neotropical genus, recognizable mainly by the presence of trifoliate leaves, pentamerous flowers, exappendiculate filaments, spirally revolute anthers lacking a basal appendage, a campanulate disk, and anelongated gynophore. Species in this genus are mostly sciophilous treelets from South American rainforests, except for Spiranthera odoratissima, the most widespread species, which is a shrub inhabiting savannic formations and showing the widest morphological variation within the genus. In this taxonomic revision we present an extensive morphological analysis of the genus based on data from field work and from herbaria, an identification key, and descriptions and illustrations of the six species here recognized, including a new one from Iquitos, Peru. Also, we present updated information on the geographic distribution of the species, their habitats, and their morphological variability. (AU)

FAPESP's process: 14/18002-2 - Sapindales: phylogeny and diversification in the Neotropical Region
Grantee:José Rubens Pirani
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 15/24158-8 - Systematics and biogeography of Nycticalanthus and Spiranthera (Rutaceae)
Grantee:Lilian de Andrade Brito
Support Opportunities: Scholarships in Brazil - Master