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  • 1
    Electronic Resource
    Electronic Resource
    Systematics ofPlagiochila sect.Glaucescentes Carl (Hepaticae) from tropical America: A morphological and chemotaxonomical approach (2000)
    Springer
    Plant systematics and evolution 220 (2000), S. 115-138 
    Details
    ISSN: 1615-6110
    Keywords: Plagiochilaceae ; Plagiochila sect.Glaucescentes ; Plagiochila sect.Contiguae ; Chemotaxonomy ; terpenoids ; azulenes ; plagiochilines ; fusicoccanes ; bibenzylderivatives ; longispinones ; 3-benzylphthalides ; flavonoids ; gametophyte ; oil bodies ; sporophyte
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract The systematics of theGlaucescentes Carl, a poorly known neotropical section of the large genusPlagiochila, is revised based on a large set of gametophytic, sporophytic and chemical characters. Three species are recognized,P. buchtiniana Steph.,P. longispina Lindenb. and Gottsche andP. diversifolia Lindenb. and Gottsche, the latter with two chemotypes. Twelve binomina are reduced to synonymy. The species occur in montane regions of tropical America, especially in the northern and central Andes. In addition,P. longispina is newly reported from the Azores, where it was previously known asP. allorgei Herzog and Perss. TheGlaucescentes are excellently characterized by morphological and chemical features and are clearly separated from theContiguae Carl, a group often confused with theGlaucescentes. Morphologically, theGlaucescentes stand apart by the brown oil bodies, thinwalled inner capsule wall cells and partly unequally bispiral elaters. Chemically, they are characterized by the accumulation of partially hydrogenated bibenzylderivatives (longispinone, longispinol), 3-benzylphthalides and various flavonoids, and by the low production of terpenoids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00985374
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  • 2
    Electronic Resource
    Electronic Resource
    Surface wax, a new taxonomic feature in Plagiochilaceae (2000)
    Springer
    Plant systematics and evolution 225 (2000), S. 225-233 
    Details
    ISSN: 1615-6110
    Keywords: Plagiochilaceae ; Plagiochila sect.Bursatae ; Plagiochila sect.Fuscoluteae ; gametophyte ; surface wax
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract A scanning electron microscope study of 81 species of Plagiochilaceae revealed the presence of superficial waxes on the leaves and stems ofPlagiochilion mayebarae and 5 species ofPlagiochila. The waxes are not visible in the light microscope and were unknown in Plagiochilaceae.Plagiochila fuscolutea andP. longiramea (=P. sect.Fuscoluteae) are characterised by the predominant occurrence of membraneous wax platelets;Plagiochila aerea, P. rudischusteri andP. tabinensis(=P. sect.Bursatae) predominately form various types of wax rodlets. Our findings show for the first time the systematic usefulness of leaf surface waxes in the liverworts.P. tabinensis contains surface waxes in amounts of ca. 1.4% dry weight composing of steryl esters, triacylglycerols and free fatty acids.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00985469
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  • 3
    Electronic Resource
    Electronic Resource
    The hydrophilous vegetation of Western Crete (1977)
    Springer
    Plant ecology 34 (1977), S. 65-86 
    Details
    ISSN: 1573-5052
    Keywords: Crete ; Hydrophilous vegetation ; Syntaxonomy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The hydrophilous plant communities of Western Crete described and classified in this paper belong to the following classes: Potametea, Adiantetea, Phragmitetea, Molinio-Juncetea, Juncetea maritimi, Isoeto-Nanojuncetea and Alno-Populetea. Two new alliances and five new associations are described: Brachypodio-Holoschoenion, Dorycnio-Rumicion conglomeratae, Dorycnio-Caricetum otrubae, Dorycnio-Cladietum marisci and Caricetum creticae (all Molinio-Juncetea), Acrocladio-Adiantetum (Adiantetea), and Juncetum subulato-maritimi (Juncetea maritimi).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00054476
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Phytochemical and morphological support for the existence of two species inMonoclea (Hepaticae) (1992)
    Springer
    Plant systematics and evolution 180 (1992), S. 115-135 
    Details
    ISSN: 1615-6110
    Keywords: Hepaticae ; Monocleales ; Monoclea ; Chemotaxonomy ; flavonoids ; bisbibenzyls ; terpenoids ; morphology ; sporophyte ; antheridial receptacle ; geographical variation
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Recognition of two different species in the liverwort genusMonoclea Hook. (monotypic orderMonocleales), viz.M. forsteri Hook. in New Zealand andM. gottschei Lindb. in the New World, is supported by characteristics of the sporophyte, antheridial receptacle and secondary metabolites.M. gottschei produces the greatest variety of flavonoids and the largest amount of bisbibenzyls ever encountered in a liverwort. In contrast,M. forsteri is poor in secondary metabolites. Two allopatric subspecies are recognized inM. gottschei, based on characteristics of the antheridial receptacle: subsp.gottschei in Chile (Valdivian region, Juan Fernandez Is.) and subsp.elongata Gradst. & Mues, subsp. nova, in tropical America. The exclusive occurrence inMonoclea of glucuronide and galacturonide flavone glycosides and the fact that capsule dehiscence may take place before full elongation of the seta are new arguments in support of the placement ofMonocleales in theMarchantiidae.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00940401
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    Paper (German National Licenses)
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