Showing papers in "Botanical Journal of the Linnean Society in 1993"

TL;DR: In this paper, an assemblage of 17 species of bird-pollinated Ecuadorian plants (from 14 angiosperm families) were studied, including taxa pollinated by short-billed (trochiline) and sickle billed (hermit) hummingbirds.

TL;DR: Polymery is consistent with other floral characters, such as the nature of perianth, vasculature (axial and cortical systems) and merosity, and must be regarded as gradual variations of each character state.

TL;DR: Morphological data were gathered from 1539 herbarium specimens representing the taxa of Vicia subgenus Vicia and the results of the analysis were used to produce a classification of the sub genus.

TL;DR: The American lianas show a distinct propensity to form a crown in the forest canopy constituted of multiple leafy units which grow apart with an increasing distance between each unit (expansion with a centrifugal tendency).

TL;DR: The strong tendency for obligate outcrossing in the Chilean community is seen as a result of interplay between life-history constraints and the intense abiotic and biotic pressures that are characteristic of the mediterranean-type climate community.

TL;DR: The structural differences of the two fruit types of two Podocarpus species in relation to their different population recruitment rates have predictive value for the relative success of the different sections of the genus.

TL;DR: Anatomical data, when analysed cladistically, support the hypothesis that Spiranthoideae, as currently delimited, are polyphyletic.

TL;DR: Studies of the flower visitors and pollination ecology of Acacia albida, A. senegal and A. nilotica in Senegal and Kenya showed a high diversity of floral foragers, and Acacia tortilis was almost exclusively outcrossed, indicating selective seed abortion.

TL;DR: Significant results of the cladistic analysis of the Lythraceae include recognition of the two major clades and a total of seven monophyletic groups within the family; indication that genera endemic to the New World have been derived from more than one ancient Old World evolutionary line.

TL;DR: Nectar, scent and the shape of the flowers of L. alpinum all fit the syndrome of fly pollination.

TL;DR: Because of the unique combination of floral features in the apostasiads, their predominantly simple perforation plates, and their overall anatomical similarity to orchids in general, it would appear appropriate to consider them as a subfamily, Apostasioideae, of Orchidaceae sensu lato.

TL;DR: Evidence is presented to show the close relationship between J. neriifolia and J. atacorenis and other variable micromorphological characters of the epidermis include cell size, periclinal walls, distribution and density of trichomes.

TL;DR: Variation in pollen morphology is described and illustrated for 36 genera of Acanthaceae with contorted corolla aestivation and a parsimony analysis of pollen characters is presented.

TL;DR: It is demonstrated that Archaeopteris is totally lacking extant architectural analogues, and the methodology employed in the architectural analysis of such fossil plants is introduced.

TL;DR: Different interpretations from both opponents and protagonists of dedoublement are critically examined and concepts such as negative, positive, serial, lateral and congenital dedoublements are discussed.

TL;DR: Floral vascularization provides evidence that the family was derived from an obdiplostemonous ancestor and numerous similarities in floral morphology and anatomy between Styracaceae and Ericales are pointed out.

TL;DR: Comments are made on some existing classification systems of the Cryptophyceae and a new system is proposed, which allows for the existence of three orders, four families, seven pigmented genera and two colourless ones.

TL;DR: There is anatomical evidence to support the exclusion of Balanites into a separate family, and some groups (Engler's Peganoideae and Nitrarioideae) have characteristics which set them apart from the rest of the family.

TL;DR: The cryptogamic flora of a small isolated natural fragment of rainforest in south-eastern Tasmania has retained its rainforest character but has been modified in comparison to the flora of large, well-buffered rainforest stands.

TL;DR: One species ( C. luteoalba (Pcrs.) Child, section Cyphomandropsis ) was unique in its banding pattern, providing further evidence for the delimitatation of this species and perhaps section from other CyphOMandra taxa.

TL;DR: It is shown that leaf anatomy data provide characters which are taxonomically useful in classification of Inuleae.

TL;DR: It is suggested that the clade composed of the Zosteraceae, Posidoniaceae and Cymodoceaceae evolved from a freshwater hydrophilous ancestor that developed submarine pollination and filiform pollen in association with invasion of the marine environment.

TL;DR: Morphological and taxonomic affinities between C. bacteriastroides and C. seychellarus are noted, and a phylogenetic sequence is suggested: both species are restricted to warm waters, but while C. coli shows an Indo-Pacific distribution, C. Seychellaria is found in all three oceans.

TL;DR: Two new species of Petunia Jussieu from Santa Catarina and Rio Grande do Sul states in Brazil are described and compared with the other seven species.

TL;DR: Absence of similar morphological changes in male-cone idioblasts is correlated with toxin sequestration, enabling the pollinator to breed and feed without intoxication, and may relate to mobilization of toxins.

TL;DR: Correlations were found between certain climatic parameters and fresh weight, dry weight and seed number of the fruit of Arbutus unedo L. in central Italy.

TL;DR: The anatomy of the cypselae of five species of Cineraria has been investigated to establish its potential usefulness for interspecific taxonomy and the most useful characters are the number of ribs, the extent of sclerenchymatization of the ribs and wings, and the surface sculpturing of the epicarp cells.

TL;DR: The proposed classification contains nine sections, nine series, 38 species, 14 subspecies and 22 varieties of Vicia subgenus Vicia, which is discussed in relation to previous classifications.

TL;DR: Hypotheses of the most probable phylogeny of the section Spirostachyae are presented, and of the relationships of the sections SpiroStachyae, Ceratocystis and Elatae are presented.

TL;DR: The sample of six species of genus Plantago dealt with in this communication reveals a wide variation in pollination system, particularly in the predominantly inbreeding species and in the outcrossed species.