? Platanus: Planes and American Sycamores
Leaves and fruit of a London Plane
Scientific classification
Kingdom: Plantae Division: Magnoliophyta Class: Magnoliopsida Order: Proteales Family: Platanaceae Genus: Platanus
Species
See text.

The genus Platanus is a small genus of six species of trees native to the Northern Hemisphere. They are the sole members of the family Platanaceae. They are all large trees to 30-40 m tall, deciduous (except for P. kerrii), and are mostly found in riparian or other wetland habitats in the wild, though proving drought tolerant in cultivation away from streams. Photo borrowed from Dutch Wikipedia = Plataan, bladeren, eigen foto released under the GNU Free Documentation License File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Divisions Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants Adiantum pedatum (a fern... Classes Magnoliopsida- Dicots Liliopsida- Monocots The flowering plants (also called angiosperms) are a major group of land plants. ... Orders see text Dicotyledons or dicots are flowering plants whose seed contains two embryonic leaves or cotyledons. ... Families See text The Proteales are an order of flowering plants, which belong among the basal eudicots. ... The coniferous Coast Redwood, the tallest tree species on earth A tree can be defined as a large, perennial, woody plant. ... Insert non-formatted text here The Northern Hemisphere is the half of a planets surface (or celestial sphere) that is north of the equator (the word hemisphere literally means half ball). On the Earth, the Northern Hemisphere contains most of the land and population. ... Deciduous means temporary or tending to fall off (deriving from the Latin word decidere, to fall off). ... A riparian zone schematic from the Everglades. ... A subtropical wetland in Florida, USA, with an endangered American Crocodile. ... Habitat (from the Latin for it inhabits) is the place where a particular species lives and grows. ... A drought or an extreme dry periodic climate is an extended period where water availability falls below the statistical requirements for a region. ...

They are known as planes in the Old World, and as sycamores in North America. Elsewhere, the name "sycamore" refers to either the fig Ficus sycomorus (the species originally so named), or the Sycamore Maple, Acer pseudoplatanus. MEG ILLIF 1630 260 2894 ... Species About 800, including: Ficus altissima Ficus americana Ficus aurea Ficus benghalensis - Indian Banyan Ficus benjamina - Weeping Fig Ficus broadwayi Ficus carica - Common Fig Ficus citrifolia Ficus drupacea Ficus elastica Ficus godeffroyi Ficus grenadensis Ficus hartii Ficus lyrata Ficus macbrideii Ficus macrophylla - Moreton Bay Fig Ficus microcarpa - Chinese Banyan Ficus... Binomial name Acer pseudoplatanus L. The Sycamore or Sycamore Maple (Acer pseudoplatanus) is one of the commonest maples in Europe, native to central Europe from France east to Poland, and south (in mountains) to northernmost Spain and Turkey. ...

The reduced flowers, borne in balls (globose head), 3 to 7 hairy sepals (may be fused at base), and 3 to 7 (or no) spathulate petals. The male and female flowers are separate, but on the same plant (monoecious). The number of heads in one cluster (inflorescence) is indicative of the species (see table below). The male flower has with 3-8 stamens; the female has superior ovary with 3 to 7 carpels. Plane trees are wind-pollinated. Male balls fall off branch after shedding their pollen. The female flowers, on the other hand, remain attached to the branch firmly.

After being pollinated, the female flowers become achenes that aggregate on the ball. Typically, the core of the ball is 1 cm in diameter and is covered with a net of mesh 1 mm, which can be peeled off. The ball is 3 cm in diameter and contains several hundred achenes, each of which has a single seed and is conical, with the point attached downward to the net at the surface of the ball. There is also a tuft of many thin stiff yellow-green bristle fibers attached to the base of each achene. These bristles help in the wind dispersion of the fruits like dandelion. The mature bark peels (exfoliate) off easily in irregularly shaped patches, proucing a mottled, scaly appearance. Very old barks may not flake off, but would crack instead. The base of leaf stalk (petiole) is enlarged and completely wraps around the young stem bud in its axil. The bud will be exposed only after the leaf falls off. An achene is a type of simple dry fruit produced by many species of flowering plants. ... Species See text Dandelion (Taraxacum) is a large genus of flowering plants in the family Asteraceae. ...

The following are recognized species of plane trees:

Planes are susceptible to Plane Anthracnose Apiognomonia veneta, a fungal disease that can defoliate the trees in some years. The worst infections are associated with cold, wet spring weather. P. occidentalis and the other American species are the most susceptible, with P. orientalis the most resistant. The hybrid London Plane is intermediate in resistance. Platanus species are used as food plants by the larvae of some Lepidoptera species including Setaceous Hebrew Character. Binomial name Platanus kerrii Kerrs Plane (Platanus kerrii) is a somewhat anomalous species in the Plane tree family, native to Southeast Asia, and differs from the other species in being evergreen, having unlobed leaves, and in the leaf stem not enclosing the axillary bud at its base. ... Location of Southeast Asia Southeast Asia is a subregion of Asia. ... Binomial name Platanus orientalis L. The Oriental plane (Platanus orientalis L.) is a very large, widespreading, and long-lived deciduous tree in the Platanaceae family. ... Binomial name Platanus occidentalis The American sycamore (Platanus occidentalis), also known as American plane and Buttonwood, is one of the species of Platanus native to North America, where it is rather confusingly very often just called Sycamore, which can refer to other types of tree. ... World map showing North America A satellite composite image of North America. ... Binomial name Platanus racemosa Nutt. ... Official language(s) English Capital Phoenix Largest city Phoenix Area  - Total  - Width  - Length  - % water  - Latitude  - Longitude Ranked 6th 295,254 km² 500 km 645 km 0. ... Official language(s) None, English and Spanish de facto Capital Santa Fe Largest city Albuquerque Area  - Total  - Width  - Length  - % water  - Latitude  - Longitude Ranked 5th 315,194 km² 550 km 595 km 0. ... Binomial name Platanus x hispanica Muenchh. ... Divisions Chytridiomycota Deuteromycota Zygomycota Glomeromycota Ascomycota Basidiomycota Fungus growing on a tree in Borneo A fungus (plural fungi) is a eukaryotic organism that digests its food externally and absorbs the nutrient molecules into its cells. ... A disease is an abnormal condition of the body or mind that causes discomfort, dysfunction, or distress to the person afflicted or those in contact with the person. ... A larva (Latin; plural larvae) is a juvenile form of animal with indirect development, undergoing metamorphosis (for example, insects or amphibians). ... Super Families Butterflies Hesperioidea Papilionoidea Moths Micropterigoidea Heterobathmioidea Eriocranioidea Acanthopteroctetoidea Lophocoronoidea Neopseustoidea Mnesarchaeoidea Hepialoidea Nepticuloidea Incurvarioidea Palaephatoidea Tischeriodea Simaethistoidea Tineoidea Gracillarioidea Yponomeutoidea Gelechioidea Zygaenoidea Sesioidea Cossoidea Tortricoidea Choreutoida Urodoidea Galacticoidea Schreckensteinioidea Epermenioidea Pterophoroidea Aluctoidea Immoidea Axioidea Hyblaeoidea Thyridoidea Whalleyanoidea Pyraloidea Mimallonoidea Lasiocampoidea Geometroidea Drepanoidea Bombycoidea Calliduloidae Hedyloidea Noctuoidea Families About... Binomial name Xestia c-nigrum Linnaeus, 1758 The Setaceous Hebrew Character (Xestia c-nigrum) is a moth of the family Noctuidae. ...

There are fossil records of plane trees as early as 115 million years (the Lower Cretaceous). Despite the geographic separation between North America and Europe, species from these continent remain interfertile, resulting in hybrids such as London Plane.

Under the Cronquist system, Platanus was placed in the order Hamamelidales. Newer systems place it in the order Proteales. The Cronquist system is a scheme for the classification of flowering plants (or angiosperms). ... The Hamemelidales are an order of dicotyledons in the Cronquist system, including the following families: Family Hamamelidaceae (witch-hazel family) Family Cercidiphyllaceae (katsura tree) Family Eupteleaceae Family Platanaceae (plane trees) Family Myrothamnaceae (resurrection bush) These served as the prototype for the subclass Hamamelidae. ... Families See text The Proteales are an order of flowering plants, which belong among the basal eudicots. ...

External links

• Great Americans: The Sycamores from The Monday Garden
• Botany of Plane trees
• Plane trees
• Photos with descriptions