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Showing papers in "Botanical Journal of the Linnean Society in 1995"


Journal ArticleDOI
TL;DR: The presence of similar or chemically closely related sulphur containing compounds in floral scent of bat-pollinated plant species from differing families may represent a case of convergent evolution in scent composition and an adaptation to attract this specific group of pollinators with similar sensory preferences.

134 citations


Journal ArticleDOI
TL;DR: Submerging Kingdoms Plantae, Animalia and Fungi into Eukarya would provide a more natural framework for the eventual resolution of whether red algae are plants or protists.

72 citations


Journal ArticleDOI
TL;DR: Molecular studies confirm Brachypodium as an isolated ancient genus best placed in its own tribe (Brachypodieae).

66 citations


Journal ArticleDOI
TL;DR: Patterns of variation in stigma-anther separation and pollen production per flower suggest that not only has the current mating system of the species evolved from an outcrossing ancestor but that due to the fragmentation and isolation of populations greater levels of selfing have evolved in southern France.

51 citations


Journal ArticleDOI
TL;DR: The occurrence of foliar sclerenchyma bundle caps and ‘polystelic’ tubers supports the incorporation of Herschelianthe in Disa sect.

50 citations


Journal ArticleDOI
TL;DR: In this paper, Biserrula pelecinus via cattle dung in a semi-arid pasture is analysed by quantification of the viable seed content of cattle Dung, assessment of the percentage of readily germinable seeds in growth chamber of seeds collected from the plant and from dung, monitoring of the on-field frequency of the species in dung pats and in surrounding (control) pasture plots the four springs after dung deposition, and quantification in the pasture area occupied by dung Pats.

48 citations


Journal ArticleDOI
TL;DR: It is concluded that the new species Drepanophycus qujingensis has greatest affinity with Astewxylon mackiei, and that both exhibit the kind of fertile organization that might be anticipated in the ancestors of the lycopsids.

46 citations


Journal ArticleDOI
TL;DR: This occurrence is used, in its palaeogeographical context, to support the suggestion that climatic gradients in Late Devonian times were less steep than they are at present.

44 citations


Journal ArticleDOI
TL;DR: A population of pondweeds from the River Stour in Dorset intermediate in morphology between Potamogeton natans L. and P. nodosus Poir is shown by means of isozyme evidence to be the hybrid P. natans (P. x fluitans Roth).

43 citations


Journal ArticleDOI
TL;DR: Petal venation in families related to the Asteraceae was studied by means of light microscopy and includes the Alseuosmiaceae, Apiaceae, Aquifoliaceae, Araliaceae, Argophaceae and others.

37 citations


Journal ArticleDOI
TL;DR: All species of the genus Quercus living in the Iberian Peninsula show some exclusive particularities that permit their identification using these characters, and the abaxial surface of the leaf always has more trichomes than the adaxial and provides more characters for identification.

Journal ArticleDOI
TL;DR: Reniform sporangia recovered from Lower Old Red Sandstone strata of Devonian age (micrornatus-newportensis Spore Biozone: lower Gedinnian lower Lochkovian) on North Brown Clee Hill in the Welsh Borderland are placed in Resilitheca salopensis gen. et sp.

Journal ArticleDOI
TL;DR: In this article, the authors examined the reproductive biology of Cneorum tricoccon L. (Cneoraceae), a Mediterranean relict shrub which evolved under tropical conditions during the Tertiary.

Journal ArticleDOI
TL;DR: Observations support the idea of the inflorescence as a specialized reproductive unit with gynoecia functioning as fixed modules in which all or none of its ovules develop into seeds.

Journal ArticleDOI
TL;DR: A population of pondweeds from the River Stour in Dorset intermediate in morphology between Potamogeton natansL.

Journal ArticleDOI
TL;DR: The floral and reproductive biology of Drosophyllym lusitanicum (Droseraceae), a species endemic to the western Iberian Peninsula and northwest Morocco, was studied, with pollen germination and stigma receptivity occurring even in preanthesis.

Journal ArticleDOI
TL;DR: Significant differences between the two taxa with regard to fruit anatomy and phytochemistry are demonstrated and they are considered as two separate species.

Journal ArticleDOI
TL;DR: A range of almost 1400 cross combinations between 31 species of Tulipa subgenus T gesneriana have been carried out as discussed by the authors, and the crossability data support the current taxonomic division.

Journal ArticleDOI
TL;DR: Two groups of compounds of known bioactivity—alkylresorcinols and nitrogenous sugar analogues—have been sought in representative species from most of the genera in the Araceae and some taxonomic suggestions are made and compared with results in the literature.

Journal ArticleDOI
TL;DR: In Nymphaea capensis var. zanzibariensis, the gynoecium is characterized by a wet papillate stigma, a short hollow style, and secretory cells on the ventral surface of the ovary as mentioned in this paper.

Journal ArticleDOI
TL;DR: Tori are clearly present in tracheary elements of the African Gnetum species, a first report for the genus, and origin of the lateral meristem can be traced directly and indirectly to cortical parenchyma.

Journal ArticleDOI
TL;DR: The position of the genus within the Scrophulariaceae is analysed, and it is concluded that Lindenbergia belongs in the tribe Gratioleae, and 12 species are recognized.

Journal ArticleDOI
TL;DR: Vessel origins in Nymphaeaceae are important in illustrating that there may be multiple vessel origins in dicotyledons, and Euryale satisfies one criterion for the presence of vessel and Barclaya satisfies another (perforations in end walls), whereas Barclaya and Victoria satisfies both.

Journal ArticleDOI
TL;DR: The systematic status of Disa draconis (L.f.) Sw.

Journal ArticleDOI
TL;DR: A comparison of its embryological characteristics with those of some other groups indicates that Akania closely resembles Bretschneideraceae, but it retains some archaic embryological features and is best treated as a separate family in or near Sapindales, as in most modern general classifications.

Journal ArticleDOI
TL;DR: This cladistic analysis suggests that Pleurothallis is not a natural genus and, perhaps may be divided into several discrete genera.

Journal ArticleDOI
TL;DR: Comparing historical lake-specific population distributions of N. luteum using aerial photographs taken over a 36 year period found little change in the overall intralake distribution of each population, and believe these historical patterns to be related to the mechanisms of fruit and seed dispersal.

Journal ArticleDOI
TL;DR: In this paper, a taxonomic analysis of Thapsia villosa L, Apiaceae, has resulted in a division of the species into five different types, representing two distinctly different groups.

Journal ArticleDOI
TL;DR: New observations regarding secondary growth and vascular tissues in Welwitschia are based on roots (used because of the longitudinal orientation of most vascular tissues) and the ontogenetic origin of vascular strands added by secondary activity can be traced to phelloderm.

Journal ArticleDOI
TL;DR: The micromorphology and distribution of secreting and non-secreting trichomes in different parts of plants of the species belonging to Stachys, S. germanica group, of the Italian Flora, were studied and some peculiar features better characterize S. Germanica.