Showing papers in "Botanical Journal of the Linnean Society in 1991"

TL;DR: Analysis of cupule morphology, leaf architecture and cuticular morphology of Nothofagus species demonstrates that the existing infrageneric classifications are inaccurate and four subgenera are proposed, based on these characteristics as well as other morphological information.

TL;DR: Among the four orders studied the Proteales are the most distinct in stamen structure; the other three are only \·aguely separated by certain features.

TL;DR: Data from these sources, as well as from pericarp anatomy, wood anatomy and biflavonoid content indicate that the long standing intrafamilial classification into five tribes is artificial, and that the two small satellite families, Blepharocaryaceae and Julianiaceae should be included in the Anacardiaceae.

TL;DR: Consideration of currently accepted dicta on seed character state polarity, suggests a reversal in the evolutionary status of pachychalazy and large seed size.

TL;DR: A new taxonomic treatment of the Festuca ovina L. aggregate (Poaceae) in the British Isles found nine species recognized, one of which is recognized only as a garden plant and two only in the Channel Isles.

TL;DR: Direct and indirect evidence point to consistently pollen-limited reproduction in this Mediterranean species, an evergreen, sclerophyllous shrub inhabiting the banks of temporary streams in all countries around the Mediterranean seaboard.

TL;DR: The characters used in inferring phylogenetic relationship in Dalechampia are discussed, and a consistent terminology is devised for the parts of the distinctive pseudanthial inflorescences.

TL;DR: Dispersed tubes and filaments from the uppermost Ordovician, Silurian and Lower Devonian of the Anglo-Welsh Basin of Great Britain are described and classified using the artificial Anteturma system instituted for spores.

TL;DR: The genus Gaultheria has been classified into ten sections (one with two subsections) and 22 series of which five are new combinations and 21 are new taxa, which is a summary of the classification here presented.

TL;DR: It is shown that the number of stamens that are initiated and the difference between the direction of development of moreStamens are based on the extent of growth of the receptacle after the inception of the primary androecial primordia.

TL;DR: The results confirm the eurypalinous character of this family, in which a large number of species can be recognized by their pollen characters, and the generic limits of Cynoglossum and the infrageneric classification of Myosotis are discussed.

TL;DR: Although anatomical characters in general show much homoplasy, the relationships of the existing three tribes, Pillansieae, Watsonieae and IxIEae, are largely upheld by analysis, with at least two potentially useful subtribal groupings within Ixieae.

TL;DR: Cases have now been found where the gynoecium of all or many flowers differs from the normal tetracarpellate arrangement; some species regularly have fewer and others more than four carpels.

TL;DR: The American red mangrove, Rhizophora mangle is shown to be indigenous in Tonga, the first such evidence from the outlier, with certain identification of abundantly occurring pollen in an early Holocene mangroves peat that pre-dates the arrival of man by some 2500 years.

TL;DR: The development of the Hartekamp, George Clifford's estate, into one of the finest private Dutch botanical gardens was strongly influenced by the Hortus Botanicus of Leiden and its directors Boerhaave and Van Royen.

TL;DR: A new species of Bellevalia Lapeyr from the vilayet of Edirne in European Turkey is described which is hexaploid; 2n= 24, this is a new chromosome number for Turkish material of the genus.

TL;DR: In the light of evidence derived from seed coat anatomy, particularly that of the testa, and from the presence of endotegmen tuberculae, Najas is placed in the enlarged tribe Stratioteae in the subfamily Hydrocharitoideae (Hydrocharitaceae).

TL;DR: The taxonomy of the Solanum sessile species group (a part of the large and unwieldy section Geminata) is reviewed, based on detailed field and herbarium studies.

TL;DR: Vidalia, a genus known only in southern Australia, was studied in relation to Vidalia, and its separation from the Vidalia assemblage is not accepted, and species of Vidalia are transferred to the older genus name, Osmundaria.

TL;DR: This study reports on the structure of trichomes, epidermal cells, stomata and venation patterns of North African species of Sideritis L. (Lamiaceae).

TL;DR: The results suggest that the petiolar aerophore structure and its relationship to internalpetiolar anatomy could prove a useful taxonomic character at the generic level.

TL;DR: The Lucilia group (Asteraceae, Inuleae-Gnaphaliinae) is revisited and its phytogeny analysed by means of a computerized parsimony program (Hennig86).

TL;DR: Leaves of Bruniaceae are basically linear with an apicula that contains phellogen activity, and details of epidermal cell shape, cuticular relief and trichome form and structure based on scanning electron microscopy are given.

TL;DR: The genus Basidiophora is reviewed and a key to the species provided, which has the widest host range (though restricted to the Gompositae) and the widest distribution.

TL;DR: A survey of sub-cellular protuberances from the inner tegmen layer of Hydrocharitoideae and Najas, finding them useful for taxonomic research at both genus and species level.

TL;DR: The pachychalazal seed with undifferentiated seed-coat characterizes not only a number of the genera of the tribe Anacardieae, but also occurs in Heeria of the tribes Rhoeae and Spondiadeae.

TL;DR: A new section of Ruellia section Chiropterophila is described and it is suggested that some of the taxa in the section may be neoendemics.