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Leucobryum Juniperoideum
''Leucobryum juniperoideum'' is a species of mosses belonging to the family Leucobryaceae Leucobryaceae is a family of haplolepideous mosses (Dicranidae) in the order Dicranales. Description Members of the family grow small to large cushions. Species are characterized by having thick, whitish leaves with a large, expanded costa. It .... It has cosmopolitan distribution. References {{Taxonbar, from=Q11063497 Dicranales ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mosses
Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) ''sensu stricto''. Bryophyta (''sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hornworts. Mosses typically form dense green clumps or mats, often in damp or shady locations. The individual plants are usually composed of simple leaves that are generally only one cell thick, attached to a stem that may be branched or unbranched and has only a limited role in conducting water and nutrients. Although some species have conducting tissues, these are generally poorly developed and structurally different from similar tissue found in vascular plants. Mosses do not have seeds and after fertilisation develop sporophytes with unbranched stalks topped with single capsules containing spores. They are typically tall, though some species are much larger. ''Dawsonia'', the tallest moss in the world, can grow to in height. There are app ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leucobryaceae
Leucobryaceae is a family of haplolepideous mosses (Dicranidae) in the order Dicranales. Description Members of the family grow small to large cushions. Species are characterized by having thick, whitish leaves with a large, expanded costa. It has been suggested that the characteristic pale color exhibited by some species is caused by air bubbles in the leucocysts, and the presence of air in the leaf is assumed characteristic of the Leucobryaceae.Robinson, H. 1985. The structure and significance of the leucobryaceous leaf. Monogr. Syst. Bot. Missouri Bot. Gard. 11: 111-120. Robinson, H. 1990. A functional evolution of the Leucobryaceae. Trop. Bryol. 2: 223-237. Yamaguchi, T. 1993. A revision of the genus Leucobryum (Musci) in Asia. J. Hattori Bot. Lab. 73: 1-123. Classification The Leucobryaceae have been sometimes included in the Dicranaceae because of similar costa and peristome structures. The number of genera assigned to the family has been subject to much debate and has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmopolitan Distribution
In biogeography, cosmopolitan distribution is the term for the range of a taxon that extends across all or most of the world in appropriate habitats. Such a taxon, usually a species, is said to exhibit cosmopolitanism or cosmopolitism. The extreme opposite of a cosmopolitan species is an endemic one, being found only in a single geographical location. Qualification The caveat “in appropriate habitat” is used to qualify the term "cosmopolitan distribution", excluding in most instances polar regions, extreme altitudes, oceans, deserts, or small, isolated islands. For example, the housefly is highly cosmopolitan, yet is neither oceanic nor polar in its distribution. Related terms and concepts The term pandemism also is in use, but not all authors are consistent in the sense in which they use the term; some speak of pandemism mainly in referring to diseases and pandemics, and some as a term intermediate between endemism and cosmopolitanism, in effect regarding pandemism as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
