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Showing papers in "Botanical Journal of the Linnean Society in 1996"


Journal ArticleDOI
TL;DR: TheMahogany stocks in the Chimanes Forest are nearly exhausted, but the findings of this study could be used to help rebuild the mahogany populations, or to design management plans for the commercial species that have similar ecologies to Mahogany.

173 citations


Journal ArticleDOI
Laura K. Snook1
TL;DR: The status of mahogany populations in CITES Appendix II is investigated in this article, showing that the species regenerates in essentially even-aged stands after catastrophic disturbances destroy many or most trees, and, in the case of fires and flooding, saplings and seedlings as well.

148 citations


Journal ArticleDOI
TL;DR: In a study based on morphological, embryological and chemical data of the Plantaginaceae, within the subclass Sympetalae or Asteridae, the superorder Lamianae is shown to be monophyletic, however, it was not possible to reconstruct the phylogeny within Lamiae or to find a sister-group for the monophylettic Plantago – Hydrostachyaceae, which is considered unacceptable.

130 citations


Journal ArticleDOI
TL;DR: Phylogenetic relationships between the European species of the genus Gentiana L. (Gentianaceae) were inferred from chloroplast trnL (UAA) intron sequence data to suggest a rapid radiation following the colonization of Europe and that cpDNA can violate assumptions of rate constancy at lower taxonomic level.

127 citations


Journal ArticleDOI
TL;DR: A combined analysis of molecular and non-molecular data was conducted, and recognition of Peganaceae and Nitrariaceae is recommended, as is a recircumscription of Zygophyllaceae s.s. to comprise five subfamilies.

93 citations


Journal ArticleDOI
TL;DR: Variation in foliar trichomes in Croton (Euphorbiaceae) is reviewed, and the terminology clarified by redefinitions and illustrations of terms.

92 citations


Journal ArticleDOI
TL;DR: It is demonstrated that reserve systems selected on a variety of different criteria are suboptimal when compared to particular groups of target organisms with a definite goal of representation for conservation.

84 citations


Journal ArticleDOI
TL;DR: The accord between symmetries of flower shape and nectar guides was examined using the bulbous flora of South Africa, and in the general floras of Britain, Alpine Colorado, Canadian Arctic and Israel to suggest the complementarity of contours is probably constrained by floral development, but patterns of coloration of tepals against background andnectar guides against tepal is constrained by pollinators' sensory physiology.

62 citations


Journal ArticleDOI
TL;DR: A modified classification of the family Asclepiadaceae into three tribes and the position of attachment of the caudicles to the pollinia is suggested as a criterion for defining the erect and pendulous stature of the pollinaria.

61 citations


Journal ArticleDOI
TL;DR: Mexico, with 43 species of Pinus recognized in the most recent revision for Flora Neotropica, is the richest centre of diversity for the genus, and Phylogenetic analysis indicates that several of the oldest and most primitive members of the genus may have originated in this part of the continent and coexist with the species resulting from more recent radiation.

58 citations


Journal ArticleDOI
TL;DR: Experimental evidence is presented in support of the theory of selaginellalean megaspore exine construction by depletion flocculation that self-assembly of complexSelaginellaexines by a relatively simple construction process is plausible.

Journal ArticleDOI
TL;DR: The hypothesis of a more ancestral position for N. nitida with N. dombeyi and N. betuloides being more recently derived is confirmed and differences in shape and size seem to be important components of leaf morphology that may warrant consideration in characterizing these and other species of Nothofagus.

Journal ArticleDOI
TL;DR: It is found that the anatomy of plants in subtribe Dendrobiinae reflects a high degree of morphological diversity, and many of the anatomical characters appear to be homoplasous.

Journal ArticleDOI
TL;DR: A multivariate morphometric study of the genusPyrusin south-west Europe and North Africa shows that five species may be recognized in the area: P. bourgaeana, P. communisL.

Journal ArticleDOI
TL;DR: The occurrence of the sporangia on unmodified microphylls indicates that Haskinsia is a member of Protolepidodendrales, and new specimens are reported from four horizons in the Campo Chico Formation, Sierra de Perija, western Venezuela.

Journal ArticleDOI
TL;DR: It is argued that the crucial developments in micropropagation were made by Gavino Rotor in 1949 in the USA and Hans Thomale in 1957 in Germany, and that Morel's work needs to be seen in the context of a long line of research achievements in the in vitro culture of a wide range of explanted tissues and organs from plants of many species.

Journal ArticleDOI
TL;DR: Paphiopedilum villosum was studied in hill evergreen forests in North Thailand between 1990 and 1994, finding ‘kettle-traps’ without known reward, luring mainly by food deception and attraction to mammalian excretions and colour contrast.

Journal ArticleDOI
TL;DR: A moratorium on mahogany logging in Brazil is advocated as is the right of indigenous peoples to control their lands and resources as the way to conserve their environment.

Journal ArticleDOI
TL;DR: Leaf micromorphological features of both the Old and New World representatives of Eugenia L. axillaris have been studied and the taxonomic significance of these features in identification and elucidation of species from both areas is discussed.

Journal ArticleDOI
TL;DR: TheMahogany stocks in the Chimanes Forest are nearly exhausted, but the findings of this study could be used to help rebuild the mahogany populations, or to design management plans for the commercial species that have similar ecologies to Mahogany.

Journal ArticleDOI
TL;DR: The phylogeny of Gardenieae (Rubiaceae) is evaluated using 70 morphological and anatomical characters and 81 terminal taxa and after successive reweighting of the characters and modified bootstrap tests the following is concluded.

Journal ArticleDOI
TL;DR: It is suggested that the extreme difference of pollen stainability between two groups of R. nobile exposed to the surroundings may be related to the stage of microsporogenesis, which might play an important role in normal reproduction under low temperature at high altitudes.

Journal ArticleDOI
TL;DR: There appears to be a correlation between high chromosome number and increasing dryness of the habitats and this suggests that karyotype evolution in Z.loddigesii is recent.

Journal ArticleDOI
TL;DR: A morphological study of vegetative and reproductive structures was carried out on the tribe Colletieae (Rhamnaceae) composed of six genera and 20 species, finding a link within them can be established through steps of truncation, proliferation, reduction and acquisition of rhythmic growth.

Journal ArticleDOI
Laura K. Snook1
TL;DR: Listing of mahogany in CITES Appendix II could provide both a mechanism to fill in gaps in information and an incentive to change current practices in favour of silvicultural management to provide for regeneration of this valuable timber species in forests subjected to logging.

Journal ArticleDOI
TL;DR: In this article, Nothofagus microphylla is separated into two species, namely N.microphylla and N. martinii, based on cuticular characteristics.

Journal ArticleDOI
TL;DR: Preliminary data are presented from two genetic tests of Swietenia macrophylla King (Meliaceae), indicating significant differences between provenances and half-sib progenies in both growth and form characteristics.

Journal ArticleDOI
TL;DR: In this paper, a wide range of character states for six species of Gnetum are presented in the form of a key to emphasize their potential systematic correlations, including phellem characteristics.

Journal ArticleDOI
TL;DR: The taxonomic history of the group and the nomenclature is outlined from the ancient authors up until the present day, and is the foundation for future articles in which a novel taxonomic treatment is introduced.

Journal ArticleDOI
TL;DR: A comparative study on the leaves and petioles of 16 species of Mallotus in order to investigate anatomical variations of potential in species identification supports the placing of only a few species into the respective sections.