• Hakea
  • The authors note that while new taxa in Hakea is anticipated to found in remote regions of Australia, this species is found in a region settled shortly after the founding of the Swan River Colony and near to the home of the notable collector James Drummond. (wikipedia.org)
  • genus
  • The name Proteaceae by Antoine Laurent de Jussieu in 1789 was based on the genus Protea, which in 1767 Carl Linnaeus derived from the name of the Greek god Proteus, a deity that was able to change between many forms. (wikipedia.org)
  • occur on and cause diseases of Proteaceae, but accurate identification has been problematic due to the lack of clear species circumscriptions of members of this genus. (sun.ac.za)
  • classification
  • For any biological classification system to be effective, it must be stable, universal (i.e., be used by a wide range of people), comprehensive (if too many taxa are unplaced at the level of interest, the classification is of less utility), and it must enhance communication of knowledge by helping us to relate things (Stevens 2006a for references). (mobot.org)
  • subsp
  • Although distinct lignotuberous and non-lignotuberous forms of B. ashbyi had long been recognised, they were not formally described as taxa until 2008, when Alex George published the lignotuberous form as B. ashbyi subsp. (wikipedia.org)
  • leaf
  • further north it is somewhat warmer, with a mean temperature range of 13.5 to 27.2 °C (56.3 to 81.0 °F). Like most other Proteaceae, B. vestita has proteoid roots, roots with dense clusters of short lateral rootlets that form a mat in the soil just below the leaf litter. (wikipedia.org)
  • Like most other Proteaceae, B. xylothemelia has proteoid roots, roots with dense clusters of short lateral rootlets that form a mat in the soil just below the leaf litter. (wikipedia.org)
  • These results do not rule out additional or alternative drivers of leaf width within the study taxon and region, although we know of no other established links between leaf width decrease and environmental drivers that operated over this period. (royalsocietypublishing.org)
  • Plants
  • Serotiny is an ecological adaptation exhibited by some seed plants, in which seed release occurs in response to an environmental trigger, rather than spontaneously at seed maturation. (wikipedia.org)
  • but this arrangement lasted only until 1913, when Frederick Bailey declared the taxon to be a distinct variety of B. integrifolia in his Comprehensive Catalogue of Queensland Plants. (wikipedia.org)
  • Place one label only per plant/group of plants within the same taxon even if there are different prop_ids within that group. (cpbr.gov.au)
  • Plants of the same taxon should only be labelled with more than one label if the plants are more than 10 meters apart and other taxa are located in between them. (cpbr.gov.au)
  • hemisphere
  • In the northern hemisphere, it is found in a range of conifer taxa, including species of Pinus, Cupressus, Sequoiadendron, and more rarely Picea. (wikipedia.org)
  • flowers
  • In most taxa, the flowers occur in densely packed heads or spikes, and the fruit is a follicle. (wikipedia.org)
  • Flowers are golden yellow, and occur in a dome-shaped inflorescence up to 3.5 centimetres (1.4 in) across, typically containing thirty to forty flowers. (wikipedia.org)
  • rarely
  • Proteaceae are generally trees, rarely of more than 40 m in height, and are usually of medium height or low or perennial shrubs, except for some Stirlingia species that are herbs. (wikipedia.org)
  • common
  • Serotiny occurs less frequently in areas where this seed predation is common. (wikipedia.org)
  • This is thought to be common in those taxa that are generally self-compatible, since even these have high outcrossing rates. (wikipedia.org)
  • flower
  • As with most other Proteaceae, each flower consists of a perianth comprising four united tepals, and a single pistil, the style of which is initially enclosed within the limb of the perianth, but breaks free at anthesis. (wikipedia.org)
  • leaves
  • It has larger, glossier leaves than other subspecies, and occurs much further north. (wikipedia.org)
  • The more northerly lineage (with thinner leaves) occurred in hotter, drier conditions with higher radiation. (springer.com)
  • range
  • Several species of Botryosphaeria are known to occur on grapevines, causing a wide range of disorders including bud mortality, dieback, brown wood streaking and bunch rot. (sun.ac.za)
  • highly
  • Meissner's arrangement was an excellent survey of the known species at that time, but his infrageneric taxa were all highly heterogeneous. (wikipedia.org)
  • region
  • It occurs only within the Esperance Plains and Mallee biogeographic region, between Kulin, Lake Magenta, Frank Hann National Park and Hyden. (wikipedia.org)
  • nature
  • Exceptions: Where the nature of a taxon means that the plant is not likely ever to grow to any significant size it may be considered for labelling anyway. (cpbr.gov.au)
  • form
  • It is the non-lignotuberous arborescent form of the species, which occurs between Geraldton and Shark Bay, and in the Kennedy Ranges. (wikipedia.org)
  • fire
  • Thus the follicles open after fire, but seed release does not occur. (wikipedia.org)
  • The effect of this adaptation is to ensure that seed release occurs not in response to fire, but in response to the onset of rains following fire. (wikipedia.org)
  • period
  • Coprolites provide unique insights into the plant taxa consumed over a discrete time period by extinct herbivores and have typically been used to reconstruct the diets of single herbivore species. (pnas.org)
  • Narrowing occurred over the latter period and relative to a pre-1950 baseline. (royalsocietypublishing.org)