Showing papers in "Botanical Journal of the Linnean Society in 1985"

TL;DR: Dead leaves falling into streams are an important food source for many invertebrates and are generally made more palatable and more nutritious if they are first colonized by aquatic hyphomycetes and other micro-organisms.

TL;DR: Reports of cell-wall-degrading enzymes of aquatic hyphomycetes are reviewed, including pectinases, cellulases, hemicellulases, laminarinases and chitinases and the ability of these fungi to degrade lignin and straw is reviewed.

TL;DR: The biology of secretion and exudation from Aloe leaves remains largely unknown although fragmentary evidence points to interesting and potentially useful activity in some of the components.

TL;DR: This study gives the first report of birds visiting and thus pollinating these species, including Canarina canadensis, three Isoplexis species and Lotus berthelotii.

TL;DR: Exudates from the cut surfaces of Aloe leaves contain compounds, many of which can be recognized by their colour reaction with fast blue B salt after separation on thin-layer chromatograms, which provide a convenient basis for phytochemical discussions.

TL;DR: The hilar appendix of Auricularia fuscosuccinea was simple compared with those of the Homobasidiomycetes, and basidiospores oiCoprinus cinereus was examined before and during spore discharge using light microscopy, and SEM of frozen-hydrated and other preparations.

TL;DR: It is concluded that retention of flower parts essentially serves to enhance long-distance attraction, while colour change maximizes pollination and foraging efficiency.

TL;DR: It is concluded that coevolution is limited and that frequent jumps to ecologically associated hosts explain the parallelism in evolution of rusts on Triticeae.

TL;DR: Both orders are characterized by a unique organelle termed the sagenogenetosome, an ectoplasmic net and a wall comprised of dictyosome-derived scales that support close phylogeny of the orders to each other and their removal from the Mycota, Mycetozoa and Rhizopodea.

TL;DR: A review is presented of cross-infection studies in which isolates of B. lactucae had been inoculated on to a range of species of Compositae and it is recommended that the term ‘formae speciales' is used to denote host specialization of isolates within the species Bremia lactUCae.

TL;DR: The leaf anatomy of the rhizomatous Iris species with ensiform leaves and the related genera Pardanthopsis and Belamcanda is described and each of the three subgroups within Iris appears to be correlated with a syndrome of anatomical characters.

TL;DR: In a review of the nomenclature of Microfhelia it has been found necessary to provide a lectotype for Amphisphacrina and A. fcxcnsis is referred to Arfhopyrenia.

TL;DR: In many ornithophilous Loranthaceae pollination is accompanied by an explosive opening of the flowers, and diverse mechanisms have evolved in different genera to bring this about, and an early stage in the development of explosive flower-opening is found.

TL;DR: The results of these investigations confirm that the genera form a closely related group, and much of the evidence combines to suggest the following conclusions.

TL;DR: Etude de 43 especes ligneuses provenant de 3 types of foret differant par l'humidite et l'exposition aux vents.

TL;DR: The most common species were Haligena elaterophora, Herpotrichiella ciliomaris, Remispora maritima, Halosphaeria appendiculata and Ceriosporopsis halima, and three species not previously illustrated are discussed.

TL;DR: Numbers of PFUs in incubated worm casts increased rapidly, then fell, and this transient increase probably accounts for the generally higher number observed in natural casts.

TL;DR: Stages in the development of the gynostemium of Bulbophyllum ecornutum demonstrate that the pollinium stalk is a hamulus in this and in a closely related species, B. gibbolabium.

TL;DR: The concept of Alatospora acuminata is broadened to embrace strains with a high percentage of unbranched and triradiate conidia as well as those with large conidia with an arcuate axis and narrow branch insertion.

TL;DR: Five new species of Pythium are described, following ecological studies of the genus in the Reading (U.K.) area, two of the new species were found abundantly, three were rarely isolated and two have filamentous sporangia and all three have rather large oospores.

TL;DR: Female Osyris quadripartita plants exhibit uninterrupted reproductive activity throughout the year, due to the long duration of successive stages in the cycle and marked within-crop developmental asynchrony.

TL;DR: The Zygomycetes includes a number of mycoparasitic genera, which differ in their strategies of parasitism, and have modes of infection which do not fit neatly into either category above, but apparently share necrotrophic and biotrophic characteristics.

TL;DR: A number of water-borne fungi with branched conidia have been shown to be basidiomycetes, and these fungi resemble aquatic hyphomyectes in their habitat, conidial morphology and ontogeny.

TL;DR: An aero-aquatic hyphomycete with setose synnemata and scolecospores with a central isthmus is described.

TL;DR: It is suggested that the intercalary meristem is a derived characteristic providing survival value and a selective advantage to those pleurothallids in which it occurs.

TL;DR: Pseudoyima prolifica is described from litter of Scirpus microcarpus Presl, which produces dark hyphal colonies with few or no conidia, and pallid conidial colonies in which hyphae are sparse or absent.

TL;DR: Time-course experimenls demonstrate that sporangial emptying in Achlya inlricata is inhibited by experimental depression of the external osmotic potential, which suggests that spore discharge in an aqueous environment is effected by a reduction in the osmosis potential of the sporangia lumen relative to the external solution.

TL;DR: Pleuropetalum pleiogynum has a wider distribution than previously assumed, ranging from Costa Rica to Peru, and Blutaparon rigidum is morphologically divergent from other members of the genus, being adapted to arid conditions, and is assumed to be extinct.

TL;DR: The 43 orders of the Ascomycotina are displayed diagrammatically to illustrate their host and substratum requirements and are intended to stimulate argument and research by broadening the consideration of evolutionary pathways to include ecological and nutritional factors.