Showing papers in "Botanical Journal of the Linnean Society in 1977"

TL;DR: A critical review of the chromosome numbers of a range of taxa from both hemispheres are reported in the genus Mentha, with a discussion on probable basic numbers.

TL;DR: The family Salicorniaceae J. Agardh is reinstated and includes 12 genera of succulent, apparently leafless plants formerly contained in the Chenopodiaceae, and the typification of Katidiopsis is reduced to a synonym of Kalidium.

TL;DR: The subtribal classification of the tribe Phaseoleae has drifted into disorder since Bentham's (1865) scheme in the Genera Plantarum and a revised classification is here proposed, which for the first time accounts for all of the currently recognized genera.

TL;DR: In this paper, various taxonomic methods are used to clarify the systematics of Solanum section solanum, the large and variable species group centring around the black nightshade, S. nigrum.

TL;DR: The data are the first to suggest the presence of an antheridogen system operating in nature, with concomitant opportunities for cross-fertilization, in the colonial gametophytes of Asplenium pimpinellifolium Fee and Lygodium heterodoxum Kze.

TL;DR: The structure and ontogeny of foliar stomata were studied in 50 species of 28 genera belonging to 17 tribes of the family Euphorbiaceae and theStomatal development, distribution, diversity and basic stomatal type with reference to systematics are discussed.

TL;DR: Two new species of Magnolia are described in the Oligocene Brandon Lignite deposit of west-central Vermont, which supports the assumed warm-temperate nature of the climate in Vermont during Brandon time.

TL;DR: Nearly 60 species from the genera Euphorbia L. and Elaeophorbia Stapf were investigated for diterpenes of the classes tiglianes, ingenanes and ortho-esters and the most commonly occurring diterpene was ingenol, followed closely by 12-Deoxy phorbol.

TL;DR: Close correspondence of the wood structure to habit and habitat is demonstrated, and Penaeaceae securely in Myrtales and help to define that order is demonstrated.

TL;DR: The course of development of the glandular and non-glandular hairs of Avicennia marina was found to be the same up to the three-celled stage and it is concluded that the two types are phylogenetically related.

TL;DR: The shores of the Cap Blanc peninsula, along which runs the border between Mauritania and Western Sahara (former Spanish Sahara), were studied in November 1975 and 88 species of algae were determined resulting in an increase of 67% and 37% respectively for the previously known marine floras of Western Sahara and Mauritania.

TL;DR: The morphology of twelve species of Rosa is described and similarities between these species are assessed, and three species are reduced to synonymy with three other species, being retained as subspecific taxa.

TL;DR: It is concluded that the characterization of interspecific variation in the Genisteae into comparative characters is an unstable process, and that this process may be unstable in other instances.

TL;DR: Development of reproductive shoots and associated organs in Vleisia aschersoniana, Althenia filiformis, Lepilaena bilocularis and L. cylindrocarpa has been examined using an epi-illumination technique to provide photographic documentation.

TL;DR: A comparison of Penicillus and Codium indicates that at least two types of development exist in multiaxial Eusiphoniidae.

TL;DR: The phytogeographical and phylogenetic implications of these results are outlined and it is concluded that the Old World species of Adiantum represent more ancient stocks than those in the New World.

TL;DR: It is concluded that the following four species of Dryopteris grow on the Canary Islands: D. aemula, the most common representative of the genus in the Islands is possibly an old Canary endemic related to some African species; D. guanchica, a new tetraploid species (n= 82), which is very distinct when living but in the dried pressed state is difficult to differentiate from D. austriaca.

TL;DR: As a result of a renewed search in the historical locality of Spartina x neyrautii this taxon was rediscovered on the Atlantic seaboard of northern Spain in 1970 as mentioned in this paper.

TL;DR: Taxonomy of six species of Chlorophytum (Liliaceae) from India has been reassessed in the light of their morphological and cytological characters and it appears that the first two species appear to be autoallopolyploids with base number 7.

TL;DR: Equisetum gametophytes possess extensive powers of regeneration without showing any signs of diminished vigour or abnormal development as discussed by the authors, and isolated lamellae, pieces of antheridial and archegonial branches

TL;DR: Hutera leptocarpa and Rhynchosinapis longirostra seem to be schizoendemics which have recently and independently evolved from ancestors similar to the more widely distributed R. hispida.

TL;DR: The foliar sclereids in 136 species representing 11 of the 12 genera of Magnoliaceae were studied and compared and species which vary as to their combinations of sclerified elements among the four possible types were identified.

TL;DR: The results of two expeditions to Central Africa to collect and study cycads, mainly Encephalartos species, are presented and species delimitation is reassessed.

TL;DR: Thin-layer chromatography of fresh leaf extracts and a morphological assessment revealed discrete, but variable, taxa; however, a high degree of sympatry suggests these species are reproductively isolated.