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Platycerioideae
Platycerioideae is a small subfamily of the fern family Polypodiaceae in the Pteridophyte Phylogeny Group classification of 2016 (PPG I). The subfamily is also treated as the tribe Platycerieae within a very broadly defined family Polypodiaceae ''sensu lato ''Sensu'' is a Latin word meaning "in the sense of". It is used in a number of fields including biology, geology, linguistics, semiotics, and law. Commonly it refers to how strictly or loosely an expression is used in describing any particular c ...''. Two genera are recognized in PPG I: *'' Platycerium'' Desv. *'' Pyrrosia'' Mirb. References {{Taxonbar, from=Q6141729 * Epiphytes Plant subfamilies ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polypodiaceae
Polypodiaceae is a family of ferns. In the Pteridophyte Phylogeny Group classification of 2016 (PPG I), the family includes around 65 genera and an estimated 1,650 species and is placed in the order Polypodiales, suborder Polypodiineae. A broader circumscription has also been used, in which the family includes other families kept separate in PPG I. Nearly all species are epiphytes, but some are terrestrial. Description Stems of Polypodiaceae range from erect to long-creeping. The fronds are entire, pinnatifid, or variously forked or pinnate. The petioles lack stipules. The scaly rhizomes are generally creeping in nature. Polypodiaceae species are found in wet climates, most commonly in rain forests. In temperate zones, most species tend to be epiphytic or epipetric. Notable examples of ferns in this family include the resurrection fern (''Pleopeltis polypodioides'') and the golden serpent fern ('' Phlebodium aureum''). Taxonomy Two distinct circumscriptions of the family are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pteridophyte Phylogeny Group
The Pteridophyte Phylogeny Group, or PPG, is an informal international group of systematic botanists who collaborate to establish a consensus on the classification of pteridophytes ( lycophytes and ferns) that reflects knowledge about plant relationships discovered through phylogenetic studies. In 2016, the group published a classification for extant pteridophytes, termed "PPG I". The paper had 94 authors (26 principal and 68 additional). PPG I A first classification, PPG I, was produced in 2016, covering only extant (living) pteridophytes. The classification was rank-based, using the ranks of class, subclass, order, suborder, family, subfamily and genus. Phylogeny The classification was based on a consensus phylogeny, shown below to the level of order. The very large order Polypodiales was divided into two suborders, as well as families not placed in a suborder: Classification to subfamily level To the level of subfamily, the PPG I classification is as follows. *Class Lycopodi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platycerium Bifurcatum
''Platycerium bifurcatum'', the elkhorn fern or common staghorn fern, is a species of fern native to Java, New Guinea and eastern Australia, in New South Wales, Queensland and on Lord Howe Island. It is a bracket epiphyte occurring in and near rainforests. Growing to tall by broad, it has heart-shaped sterile fronds long, and arching grey-green fertile fronds which are forked and strap-shaped, and grow up to long. The genus name ''Platycerium'' comes from the Greek ''platys'' (flat), and ''ceras'' (horn), while the specific epithet ''bifurcatum'' means bifurcated or forked. Both names are referring to the fertile fronds. ''Platycerium bifurcatum'' is cultivated as an ornamental plant for gardens. With a minimum temperature requirement of , in temperate regions it may be grown outdoors in sheltered locations, otherwise as a houseplant. It has gained the Royal Horticultural Society The Royal Horticultural Society (RHS), founded in 1804 as the Horticultural Society of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Subfamily
In biological classification, a subfamily (Latin: ', plural ') is an auxiliary (intermediate) taxonomic rank, next below family but more inclusive than genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom .... Standard nomenclature rules end subfamily botanical names with "-oideae", and zoological names with "-inae". See also * International Code of Nomenclature for algae, fungi, and plants * International Code of Zoological Nomenclature * Rank (botany) * Rank (zoology) Sources {{biology-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fern
A fern (Polypodiopsida or Polypodiophyta ) is a member of a group of vascular plants (plants with xylem and phloem) that reproduce via spores and have neither seeds nor flowers. The polypodiophytes include all living pteridophytes except the lycopods, and differ from mosses and other bryophytes by being vascular, i.e., having specialized tissues that conduct water and nutrients and in having life cycles in which the branched sporophyte is the dominant phase. Ferns have complex leaves called megaphylls, that are more complex than the microphylls of clubmosses. Most ferns are leptosporangiate ferns. They produce coiled fiddleheads that uncoil and expand into fronds. The group includes about 10,560 known extant species. Ferns are defined here in the broad sense, being all of the Polypodiopsida, comprising both the leptosporangiate ( Polypodiidae) and eusporangiate ferns, the latter group including horsetails, whisk ferns, marattioid ferns, and ophioglossoid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sensu
''Sensu'' is a Latin word meaning "in the sense of". It is used in a number of fields including biology, geology, linguistics, semiotics, and law. Commonly it refers to how strictly or loosely an expression is used in describing any particular concept, but it also appears in expressions that indicate the convention or context of the usage. Common qualifiers ''Sensu'' is the ablative case of the noun ''sensus'', here meaning "sense". It is often accompanied by an adjective (in the same case). Three such phrases are: *''sensu stricto'' – "in the strict sense", abbreviation ''s.s.'' or ''s.str.''; *''sensu lato'' – "in the broad sense", abbreviation ''s.l.''; *''sensu amplo'' – "in a relaxed, generous (or 'ample') sense", a similar meaning to ''sensu lato''. Søren Kierkegaard uses the phrase ''sensu eminenti'' to mean "in the pre-eminent r most important or significantsense". When appropriate, comparative and superlative adjectives may also be used to convey the meaning of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Platycerium
''Platycerium'' is a genus of about 18 fern species in the polypod family, Polypodiaceae. Ferns in this genus are widely known as staghorn or elkhorn ferns due to their uniquely shaped fronds. This genus is epiphytic and is native to tropical and temperate areas of South America, Africa, Southeast Asia, Australia, and New Guinea. Description ''Platycerium'' sporophytes (adult plants) have tufted roots, growing from a short rhizome, and bear two types of fronds - basal and fertile fronds. Basal fronds are sterile, shield- or kidney-shaped, and laminate against the tree, to protect the fern's roots from damage and desiccation. In some ''Platycerium'' species, the top margin of these fronds will grow into an open crown of lobes; catching rainwater, falling forest litter, bird/animal droppings, and even the occasional fallen baby bird or deceased animal, these plants build up their own “ compost” system of nutrition over many years. Fertile fronds bear spores on their undersur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pyrrosia
''Pyrrosia'' is a genus of about 100 fern species in the polypod family, Polypodiaceae. Like other species in Polypodiaceae, the species of Pyrrosia are generally epiphytic on trees or rocks, a few species are terrestrial. The Latin name of Pyrrosia comes from the Greek pyrrhos (red), which refers to its leaves that are red due to the sporangia. Species list *'' Pyrrosia abbreviata'' (Zoll. & Mor.) Hovenkamp *'' Pyrrosia adnascens'' (Sw.) Ching *'' Pyrrosia angustata'' (Sw.) Ching *'' Pyrrosia angustissima'' (Giesenh. ex Diels) Tagawa & K. Iwats. *'' Pyrrosia assimilis'' (Baker) Ching *'' Pyrrosia asterosora'' (Baker) Hovenkamp *'' Pyrrosia blepharolepis'' (C. Chr.) Ching *'' Pyrrosia boothii'' (Hook.) Ching *'' Pyrrosia borneensis'' (Copel.) K.H. Shing *'' Pyrrosia brassii'' (Copel.) Pic. Serm. *'' Pyrrosia christii'' (Giesenh.) Ching *'' Pyrrosia confluens'' (R. Br.) Ching *'' Pyrrosia costata'' (Wall. ex C. Presl) Tagawa & K. Iwats. *'' Pyrrosia dimorpha'' X.H. Guo & S.B. Zhou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Epiphytes
An epiphyte is an organism that grows on the surface of a plant and derives its moisture and nutrients from the air, rain, water (in marine environments) or from debris accumulating around it. The plants on which epiphytes grow are called phorophytes. Epiphytes take part in nutrient cycles and add to both the diversity and biomass of the ecosystem in which they occur, like any other organism. They are an important source of food for many species. Typically, the older parts of a plant will have more epiphytes growing on them. Epiphytes differ from parasites in that they grow on other plants for physical support and do not necessarily affect the host negatively. An organism that grows on another organism that is not a plant may be called an epibiont. Epiphytes are usually found in the temperate zone (e.g., many mosses, liverworts, lichens, and algae) or in the tropics (e.g., many ferns, cacti, orchids, and bromeliads). Epiphyte species make good houseplants due to their minimal wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
