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Stech M.,Leiden University | Sim-Sim M.,University of Lisbon | Luis L.,Museu Nacional de Historia Natural | Fontinha S.,University of Madeira | And 6 more authors.
Systematics and Biodiversity | Year: 2010

Relationships of the eight species of the liverwort genus Radula occurring in Portugal (mainland, the Madeira and Azores archipelagos), including the Macaronesian endemics R. jonesii and R. wichurae, were evaluated based on molecular, phytochemical and morphological-anatomical data. Maximum parsimony and Bayesian analyses were performed with sequences from three plastid DNA markers (trnSGGA-rps4 spacer, rps4 gene, trnLUAA intron), volatile oil compounds, as well as qualitative morphological-anatomical characters. In addition, the molecular data were subjected to maximum likelihood analysis. The eight taxa, R. aquilegia, R. carringtonii, R. complanata, R. holtii, R. jonesii, R. lindenbergiana, R. nudicaulis and R. wichurae, can be clearly distinguished from each other, either by molecular data alone or by combination of characters from all three data sets. Radula aquilegia is monophyletic according to the molecular data, but shows considerable, yet undescribed intraspecific morphological and phytochemical variability. Recognition of R. complanata and R. lindenbergiana as separate species, previously based solely on the paroecious vs. dioecious sexual condition, is moderately supported by the molecular phylogenetic analyses and strongly supported by the phytochemical data. The Radula species, narrowly distributed in Macaronesia and Atlantic Europe, probably have two different origins. For Radula holtii and R. nudicaulis, connections with Radula species from the Neotropics are indicated. The other species, among them the two Macaronesian endemics, are closely related with the R. complanata/R. lindenbergiana complex, which is widely distributed in the northern hemisphere. © 2010 The Natural History Museum.

Lobo C.,Jardim Botanico da Madeira | Sim-Sim M.,Museu Nacional de Historia Natural | Sim-Sim M.,University of Lisbon | Luis L.,Museu Nacional de Historia Natural | Stech M.,Leiden University
Nova Hedwigia | Year: 2011

Madeira Archipelago's bryoflora includes 23 Fissidens taxa of which four are endemic to Macaronesia (Fissidens coacervatus, F. microstictus, F. nobreganus and F. sublineaefolius), including two exclusive to Madeira (F. microstictus, F. nobreganus), and several others that are considered rare or threatened in Europe. However, the distribution and threat status of several Fissidens species on Madeira Archipelago is yet insufficiently known. Based on recent field work and revision of herbarium collections, distribution data, habitat preferences, and threat status on Madeira Archipelago are updated for the Madeiran endemic F. nobreganus, the Macaronesian endemics F. coacervatus a n d F. sublineaefolius, as well as five other rare or insufficiently known species, F. curvatus, F. crispus, F. dubius, F. ovatifolius and F. polyphyllus. © 2011 J. Cramer in Gebr. Borntraeger Verlagsbuchhandlung, Stuttgart, Germany.

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