Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/72255
Type: Artigo de periódico
Title: The pollination mechanism of three sympatric Prescottia (Orchidaceae : Prescottinae) species in southeastern Brazil
Author: Singer, RB
Sazima, M
Abstract: The pollination biology of three Prescottia (Orchidaceae: Prescottinae) species was studied in Picinguaba, Sao Paulo State, south-eastern Brazil. Plants are self-compatible but pollinator-dependent and offer nectar as the only reward for pollinators. Prescottia plantaginea Lindl. and Prescottia stackyodes (Swartz) Lindl. are pollinated by pyralid moths (Lepidoptera: Pyralidae). Moth-pollination is reported for the first time in the genus Prescottia and the subtribe Prescottinae. Pollination by halictid bees (Halictidae) is confirmed for Prescottia den, flora Lindl. The pollination mechanism is the same regardless of pollinator-type: pollinaria are fixed on the ventral surface of the insect's proboscis through the pad-like viscidium and are removed when the insect leaves the flower. A pollinarium-carrying insect visiting another flower will brush the stigmatic surface and leave clumps of pollen. thus effecting pollination. Prescottia stachyodes is protandrous. a feature that increases the chances of cross-pollination. As far as we know, this is the first report of protandry in the genus Prescottia and also the subtribe Prescottinae. (C) 2001 Annals of Botany Company.
Subject: Prescottia
Orchidaceae
orchids
Prescottinae
moths
Pyralidae
bees
Halictidae
flower morphology
protandry
Country: Inglaterra
Editor: Oxford Univ Press
Rights: fechado
Identifier DOI: 10.1006/anbo.2001.1535
Date Issue: 2001
Appears in Collections:Unicamp - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
WOS000173471400004.pdf3.35 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.