1987
DOI: 10.1590/s0102-33061987000200007
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Abstract: RESUMO -Foram estudados os possfveis sistemas de reprodu~iio em Dichorisandra thyrsiflora. A esp6cie parece ser predominantemente de fecunda~o cruzada. embora sem urn sistema de autoincompatibilidade definido. Conseqiientemente a autofecund~iio ocoere numa freqiimcia bern menor. Quanto a agamospermia. nenhum fruto foi observado em flores niio polinizadas.Os agentes polinizadores. invariavelmente. sao insetos do genero Bombus. Observou-se que o numero cromossomico da especie e 2n = 38. A analise da microsporoge… Show more

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Cited by 4 publications
(3 citation statements)
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“…1M–O). Only three species of Dichorisandra have had their reproductive biology investigated, presenting typical buzz-pollination, performed by bumblebees (Apidae) and/or sweatbees (Halictidae) ( D. thyrsiflora , Boaventura and Matthes 1987; D. hexandra and D. incurva , Sigrist and Sazima 2015). Information regarding flower visitation in Cochliostema , Geogenanthus , and Plowmanianthus is completely lacking from the available literature.…”
Section: Resultsmentioning
confidence: 99%
“…16), and pollen is apparently released by the vibration induced by pollen-collecting bees as in many other buzz-pollinated flowers. Vibration-mediated removal of pollen by bees of the genus Bombus has been observed for cultivated plants of D. thyrsiflora (Boaventura and Matthes, 1987;C.R. Hardy, personal observation).…”
Section: Overview Of Inflorescence and Floral Morphology-mentioning
confidence: 89%
“…The stamens are inconspicuously united at the base of their filaments, which are basally adnate to the corolla (Fig. Vibration-mediated removal of pollen by bees of the genus Bombus has been observed for cultivated plants of D. thyrsiflora (Boaventura and Matthes, 1987;C.R. As a consequence of the adnation of these basally fused filaments to the corolla, the otherwise free petals are indirectly united as in Dichorisandra hexandra and certain other Commelinaceae (Rohweder, 1969).…”
Section: Overview Of Inflorescence and Floral Morphology-mentioning
confidence: 99%