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Astraeus (fungus)
''Astraeus'' is a genus of fungi in the family Diplocystaceae. The genus, which has a cosmopolitan distribution, contains nine species of earthstar mushrooms. They are distinguished by the outer layer of flesh (exoperidium) that at maturity splits open in a star-shape manner to reveal a round spore sac. Additionally, they have a strongly hygroscopic character—the rays will open when moist, but when hot and dry will close to protect the spore sac. Species of ''Astraeus'' grow on the ground in ectomycorrhizal associations with trees and shrubs. Description The mycelium of immature specimens is fibrous, and originates from all parts of the surface. The peridium is roughly spherical, and made of two distinct tissue layers. The outer layer, the exoperidium, is thick, leathery, and initially inseparable from the inner layer (endoperidium). At maturity, the exoperidium bursts open into several pointed "rays". The inner layer of tissue, the endoperidium, is thin, like a membrane. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astraeus Hygrometricus
''Astraeus hygrometricus'', commonly known as the hygroscopic earthstar, the barometer earthstar, or the false earthstar, is a species of fungus in the family Diplocystaceae. Young specimens resemble a puffball when unopened. In maturity, the mushroom displays the characteristic Earthstar fungus, earthstar shape that is a result of the outer layer of fruit body tissue splitting open in a star-like manner. The false earthstar is an mycorrhizal, ectomycorrhizal species that grows in association with various trees, especially in sandy soils. ''A. hygrometricus'' was previously thought to have a cosmopolitan distribution, though it is now thought to be restricted to Southern Europe, and ''Astraeus'' are common in temperate and tropical regions. Its common names refer to the fact that it is hygroscopic (water-absorbing), and can open up its rays to expose the spore sac in response to increased humidity, and close them up again in drier conditions. The rays have an irregularly cra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hygroscopic
Hygroscopy is the phenomenon of attracting and holding water molecules via either absorption or adsorption from the surrounding environment, which is usually at normal or room temperature. If water molecules become suspended among the substance's molecules, adsorbing substances can become physically changed, e.g., changing in volume, boiling point, viscosity or some other physical characteristic or property of the substance. For example, a finely dispersed hygroscopic powder, such as a salt, may become clumpy over time due to collection of moisture from the surrounding environment. ''Deliquescent'' materials are sufficiently hygroscopic that they absorb so much water that they become liquid and form an aqueous solution. Etymology and pronunciation The word ''hygroscopy'' () uses combining forms of '' hygro-'' and '' -scopy''. Unlike any other ''-scopy'' word, it no longer refers to a viewing or imaging mode. It did begin that way, with the word ''hygroscope'' referring in th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scleroderma (genus)
''Scleroderma'' is a genus of fungi, commonly known as earth balls, now known to belong to the Boletales order, in suborder Sclerodermatineae. The best known species are '' S. citrinum'' and '' S. verrucosum''. They are found worldwide. Various members of this genus are used as inoculation symbionts to colonize and promote the growth of tree seedlings in nurseries. They are not edible. The name comes from the Greek ''sclera'' meaning ''hard'' and ''derma'' meaning ''skin''. Description The peridium (outer wall), which may be smooth or warted, is very thick and tough. At maturity it splits irregularly over the upper part of the basidiocarp to reveal the dark gleba underneath. Spores are produced in small brownish-purple, pea-like bodies called peridioles that initially are outlined by wall-like aggregations of white hyphae. These peridioles disintegrate as the fruit body matures, and by the time the peridium splits open, only a powdery mass of dark spores is visible. Spore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gyroporus
The Gyroporaceae are a family of fungi in the order Boletales. The family is monogeneric, containing the single genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ... ''Gyroporus'', which, according to a 2008 estimate, contains ten widely distributed species, though a more recent study inferred the species-level diversity to be far higher. References Boletales Boletales genera {{Boletales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Calostoma
''Calostoma'' is a genus of 29 species of gasteroid fungi in the suborder Sclerodermatineae. Like other gasteroid fungi, ''Calostoma'' do not have the spore discharge mechanism associated with typical gilled fungi ( ballistospory), and instead have enclosed spore-bearing structures. Resembling round puffballs with raised, brightly-colored spore openings (osteoles), elevated on a thick, gelatinous stalks, species have been collected in regions of deciduous, temperate, tropical or subtropical forests. Their distribution includes eastern North America, Central America, Asia, and Australasia. The common name given to some species, "prettymouth", alludes to the brightly-colored raised openings (osteoles) that may somewhat resemble lips. Other common names include "hotlips" and "puffball in aspic". The unusual fruit body structure has historically led mycologists to suggest various classification schemes based on presumed relationships to other puffball or "stomach mushrooms". Ph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pisolithus
''Pisolithus'' is a genus of fungi within the family Sclerodermataceae (suborder Sclerodermatineae). The type species, ''P. arenarius'', is now known to be synonymous with ''P. arhizus''. Species As accepted by Species Fungorum; *'' Pisolithus abditus'' – Thailand *'' Pisolithus albus'' *'' Pisolithus arenarius'' *'' Pisolithus arhizus'' *'' Pisolithus aurantioscabrosus'' - Malaysia *'' Pisolithus aureosericeus'' *'' Pisolithus calongei'' *'' Pisolithus capsulifer'' *'' Pisolithus croceorrhizus'' *'' Pisolithus hypogaeus'' – Australia *'' Pisolithus indicus'' – India *'' Pisolithus kisslingii'' *'' Pisolithus marmoratus'' *'' Pisolithus microcarpus'' *'' Pisolithus orientalis'' *'' Pisolithus thermaeus'' *''Pisolithus tinctorius ''Pisolithus arhizus'' is a widespread Sclerodermataceae, earth-ball like fungus, which may in fact be several closely related species. Common names include dead man's foot and dyeball. It is known in Australia as the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phlebopus
''Phlebopus'' is a genus of fungi in the family Boletinellaceae (suborder Sclerodermatineae of the Boletales order). The genus has a widespread distribution in subtropical and pantropical regions, and contains 12 species. The species are saprobic, with some possibly able to form mycorrhizae with exotic trees in certain conditions. It contains the gigantic ''Phlebopus marginatus'', the cap of which can reach in diameter. Taxonomy The genus was originally described as a subgenus of ''Boletus'' by Roger Heim in 1936, and raised to generic status by Rolf Singer that year. It was later redescribed with another type species (''Phaeogyroporus braunii'') under the name ''Phaeogyroporus'' by Rolf Singer in 1944. This name was used until 1981, when a specimen of ''Phlebopus colossus'' was collected and mycologist Paul Heinemann designated it as the lectotype. The genus name is derived from the Greek Φλεβο- "vein" and πους "foot". Description ''Phlebopus'' is similar in appearanc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boletinellus
''Boletinellus'' is a genus of fungi in the family Boletinellaceae (suborder Sclerodermatineae of the Boletales). The genus was first described by American mycologist William Alphonso Murrill William Alphonso Murrill (October 13, 1869 – December 25, 1957) was an American mycologist, known for his contributions to the knowledge of the Agaricales and Polyporaceae. In 1904, he became the assistant Curator at the New York Botanical Ga ... in 1909. References External links Boletales Boletales genera Taxa named by William Alphonso Murrill {{Boletales-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geastraceae
Geastrales is an order of gasterocarpic basidiomycetes (fungi) that are related to Cantharellales. The order contains the single family Geastraceae, commonly known as "earthstars", which older classifications had placed in Lycoperdales, or Phallales. Approximately 64 species are classified in this family, divided among eight genera, including the ''Geastrum'', ''Myriostoma'' and '' Sphaerobolus''. The ''Sphaerobolus'' are known as "shotgun fungus" or "cannonball fungus". They colonize wood-based mulches and may throw black, sticky, spore-containing globs onto nearby surfaces. The fruiting bodies of several earthstars are hygroscopic: in dry weather the "petals" will dry and curl up around the soft spore sac, protecting it. In this state, often the whole fungus becomes detached from the ground and may roll around like a tumbleweed. Once mature, their exoperidium splits into a variable number of rays, which give Geastrum their visible star shape. The exoperidial rays are ther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geaster
''Geastrum'' (orthographical variant ''Geaster'') is a genus of puffball-like mushrooms in the family Geastraceae. Many species are known commonly as earthstars. The name, which comes from ''geo'' meaning ''earth'' and meaning ''star'', refers to the behavior of the outer peridium. At maturity, the outer layer of the fruiting body splits into segments which turn outward creating a star-like pattern on the ground. The inner peridium is called a spore sac. In some species, the outer peridium splits from a middle layer, causing the spore sac to arch off the ground. If the outer peridium opens when wet and closes when dry, it is described as hygroscopic. In some species, the inner peridium is borne on a stalk or pedicel. The columella is a column-like clump of sterile tissue found inside the inner peridium. The network of fertile tissue inside the inner peridium, the capillitium, arises from the columella And is where basidia and basidiospores are produced. The mouth in most species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Capillitium
Capillitium (pl. capillitia) is a mass of sterile fibers within a fruit body interspersed among spores. It is found in Mycetozoa (slime molds) and gasteroid fungi of the fungal subdivision Agaricomycotina The subdivision Agaricomycotina, also known as the hymenomycetes, is one of three taxa of the fungal division Basidiomycota (fungi bearing spores on basidia). The Agaricomycotina contain some 20,000 species, and about 98% of these are in the cla .... In the fungi, the form of the capillitia, including shape, size, branching patterns, presence or absence of slits or pores, thickness of the walls, and color, are features that can be used to identify certain species or genera. References {{Reflist, refs= {{cite book , title=Poisonous Mushrooms of the northern United States and Canada , vauthors=Ammirati J, Traquair JA, Horgen PA , year=1985 , publisher=Fitzhenry & Whiteside in cooperation with Agriculture Canada , location=Markham, Ontario , isbn=978-0889029774 , page=30, 376 , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
