|
Wunderlichioideae
The Wunderlichioideae are a subfamily of flowering plants belonging to the family Asteraceae. The subfamily includes eight genera and about 24 species that are concentrated in Brazil (''Wunderlichia'') and Guyana (''Chimantaea'', ''Stenopadus'', and ''Stomatochaeta''), with some species in other South America countries (''Hyalis'' and ''Ianthopappus'') and others (''Nouelia'' and ''Leucomeris'') in Southeast Asia and the Himalayas.Panero, J. L., and V. A. FunkThe value of sampling anomalous taxa in phylogenetic studies: major clades of the Asteraceae revealed.Mol. Phylogenet. Evol. 2008; 47: 757-782. Distinguishing features of the members of this subfamily are presence of styles with glabrous style branches and a deletion in the ''rpoB'' gene. Two tribes, Wunderlicheae and Hyalideae, are recognised. References External links *Stevens, PF (2001 onwards)Asteraceae Angiosperm Phylogeny Website The Angiosperm Phylogeny Website (or APweb) is a website dedicated to research on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chimantá Massif
The Chimantá Massif is a highly fragmented complex of tepuis in Bolívar state, Venezuela. The massif comprises around 11 tepuis and has a total summit area of and an estimated slope area of .Huber, O. (1995). Geographical and physical features. In: P.E. Berry, B.K. Holst & K. Yatskievych (eds.) '' Flora of the Venezuelan Guayana. Volume 1. Introduction.'' Missouri Botanical Garden Press, St. Louis. pp. 1–61. It is divided in two by the Río Tírica, with the northern section being both larger and higher. The massif is notable for its high species richness and for its varied habitat types. It reaches an elevation of Nogué, S., V. Rull, E. Montoya, O. Huber & T. Vegas-Vilarrúbia (October 2009). Paleoecology of the Guayana Highlands (northern South America): Holocene pollen record from the Eruoda-tepui, in the Chimantá massif. ''Palaeogeography, Palaeoclimatology, Palaeoecology'' 281(1–2): 165–173. on its highest peak, Murey-tepui (also known as Eruoda-tepui). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shrubland
Shrubland, scrubland, scrub, brush, or bush is a plant community characterized by vegetation dominated by shrubs, often also including grasses, herbs, and geophytes. Shrubland may either occur naturally or be the result of human activity. It may be the mature vegetation type in a particular region and remain stable over time, or a transitional community that occurs temporarily as the result of a disturbance, such as fire. A stable state may be maintained by regular natural disturbance such as fire or browsing. Shrubland may be unsuitable for human habitation because of the danger of fire. The term was coined in 1903. Shrubland species generally show a wide range of adaptations to fire, such as heavy seed production, lignotubers, and fire-induced germination. Botanical structural form In botany and ecology a shrub is defined as a much-branched woody plant less than 8 m high and usually with many stems. Tall shrubs are mostly 2–8 m high, small shrubs 1–2 m high an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
