Spore morphology of some Bruchiaceae species (Bryophyta) from Brazil |
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| Authors: | Andréa Pereira Luizi‐Ponzo Ortrud Monika Barth |
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| Affiliation: | 1. Laboratório de Palinologia, Departamento de Botanica, Instituto de Biologia, CCS, Bloco A, Ilha do Fund?o , Universidade Federal do Rio de Janeiro , 21949–900;2. Departamento de Botanica, Instituto de Ciências Biológicas , Universidade Federal de Juiz de Fora , Minas Gerais, CEP. 36.036–330, Brazil;3. Departamento de Virologia , Instituto Oswaldo Cruz, FIOCRUZ , Avenida Brasil 4365, Rio de Janeiro, 21045–900, Brazil |
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| Abstract: | The spores of Bruchia uleana, B. uruguensis, Eobruchia bruchioides, Trematodon ambiguus, T. aureus, T. brevifolius, T. longlcollis, T. reflexus and T. vaginatus were studied by light and scanning electron microscopy. The spore wall of the family Bruchiaceae includes sclerine (the distinction between exine and perine may be difficult to define) and intine. The aperture may be surrounded or not by one or more rings of ornamentation elements. Two basic types of spore were recognized: one characterized by a gemmoid surface and the other with elongated processes and two types of ornamentation in the apertural region. The spores of the taxa studied support the separation of the Bruchiaceae from the Dicranaceae. |
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