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Morchella, the true morels, is a genus of edible sac fungi closely related to anatomically simpler cup fungi in the order Pezizales. These distinctive fungi have a honeycomb appearance due to the network of ridges with pits composing their caps. Morels are prized by gourmet cooks, particularly in Catalan and French cuisine, but can be toxic if consumed raw or undercooked. Due to difficulties in cultivation, commercial harvesting of wild morels has become a multimillion-dollar industry in the temperate Northern Hemisphere, in particular North America, Turkey, China, the Himalayas, India, and Pakistan where these highly prized fungi are found in abundance.
Morchella elata is a species of fungus in the family Morchellaceae. It is one of many related species commonly known as black morels, and until 2012 the name M. elata was broadly applied to black morels throughout the globe. Like most members of the genus, M. elata is a popular edible fungus and is sought by many mushroom hunters.
Morchella rufobrunnea, commonly known as the blushing morel, is a species of ascomycete fungus in the family Morchellaceae. A choice edible species, the fungus was described as new to science in 1998 by mycologists Gastón Guzmán and Fidel Tapia from collections made in Veracruz, Mexico. Its distribution was later revealed to be far more widespread after several DNA studies suggested that it is also present in the West Coast of the United States, Israel, Australia, Cyprus, Malta and Switzerland.
Morchella semilibera, commonly called the half-free morel, is an edible species of fungus in the family Morchellaceae native to Europe and Asia.
Morchella tridentina is a cosmopolitan species of ascomycete fungus in the family Morchellaceae. Commonly referred to as the mountain blond or western blond morel in North America, it produces conical, grey to buff fruit bodies that are rufescent and grow up to 20 cm (7.9 in) tall and 5 cm (2.0 in) wide. This early-diverging species is distinct within the /Elata clade due to its pale colours and has been described by many names in the past, including M. frustrata, M. quercus-ilicis, M. elatoides, M. elatoides var. elegans and M. conica var. pseudoeximia, all of which were shown to be synonyms. A widely distributed relict of the last Ice Age, M. tridentina is so far known from Argentina, Armenia, Chile, Cyprus, France, India, Israel, North America, Spain and Turkey.
Morchella americana is a North American species of fungus in the family Morchellaceae.
Morchella importuna is a species of fungus in the family Morchellaceae described from North America in 2012. It occurs in gardens, woodchip beds, and other urban settings of northern California and the Pacific Northwest region of the United States and Canada. The fungus has also been reported from Turkey, Spain, France, Switzerland, Canada and China, although it is unknown whether this is a result of accidental introductions. It is considered a choice edible mushroom. The fruit bodies develop a distinctive ladder-like pattern of pits and ridges on the surface of their conical caps.
Morchella capitata is a later synonym of Morchella exuberans. Originally identified as phylogenetic species Mel-9, it was described as new to science in 2012 by Kuo and colleagues. In 2014 however, Richard and colleagues clarified the taxonomic status of this species, retaining the name Morchella exuberans of Clowez (2012) over M. capitata.
Morchella septimelata is a species of fungus in the family Morchellaceae described as new to science in 2012. Occurring in western North America, it has been collected from British Columbia, Montana and Oregon, where it fruits at elevations of 1,000 to 2,000 m in coniferous forests in years following slight to moderate burning.
Morchella populiphila is a species of morel fungus native to northwestern North America. Described as new to science in 2012, its specific epithet refers to its association with black cottonwood. The morel used to be referred to as Morchella semilibera in western North American field guides until molecular analysis established that to be a strictly European species. M. populiphila occurs in California, Nevada and Oregon. Its fruit bodies grow up to 15 cm (6 in) tall with a ridged and pitted conical cap that attaches about halfway down the stipe. The cap ridges are dark brown to black in maturity, while the pits are yellowish to brownish. The fungus is edible, although not as highly valued as other morels.
Morchella anatolica is a rare species of ascomycete fungus in the family Morchellaceae. It was described as new to science in 2010 from southwest Anatolia, Turkey, where it grows on moss-covered stream beds in pine forests. An ancient climatic relict, M. anatolica is restricted to the Mediterranean basin and has also been documented in Spain, Cyprus and Greece, where it is sometimes encountered with trees of the Oleaceae family. Together with its sister-species Morchella rufobrunnea, they are the earliest diverging lineages in genus Morchella, forming a distinct clade that is basal in global morel phylogenies. Because of its phylogenetic position, M. anatolica has been crucial in inferring the historical biogeography of the genus, which is estimated to have emerged somewhere in the Mediterranean region in the late Jurassic.
Morchella arbutiphila is a species of fungus in the family Morchellaceae (Ascomycota), described from the island of Cyprus in 2016. The species is notable for its elongated stipe, which is often longer than the cap's length, its ascospores which are larger than most other species of Morchella, and its highly specific ecological preferences. It is known only from igneous substrates of the Troodos mountains in Cyprus and from a single collection in the Aegean region of Turkey.
Morchella disparilis is an Ascomycete fungus in the family Morchellaceae. Described as new to science in 2016, M. disparilis appears to be confined to the Mediterranean basin and is so far known from Cyprus, Greece and Spain. Its most striking feature is the exceptionally deep sinus, intermediate in depth between half-free morels of the Morchella semilibera clade and typical Distantes species.
Morchella fluvialis is a species of fungus in the family Morchellaceae. It was described as new to science in 2014 by Clowez and colleagues, following collections from riparian forests in Spain under Alnus glutinosa, Ulmus minor and Eucalyptus camaldulensis, although previous collections from Turkey under Pinus nigra have also been reported. This species, which corresponds to phylogenetic lineage Mes-18, is very close to Morchella esculenta, from which it differs in its elongated cap with oblong pits and predominantly longitudinal ridges, pronounced rufescence, as well as its Mediterranean hygrophilic distribution along rivers and streams.
Morchella kakiicolor is a species of fungus in the family Morchellaceae (Ascomycota). It was originally proposed as a form of Morchella quercus-ilicis in a 2012 study by Philippe Clowez, but was later re-combined as an autonomous species by Loizides and colleagues, based on molecular phylogenetic data. In the same study, M. quercus-ilicis f. quercus-ilicis was shown by the authors to be a later synonym of the old taxon Morchella tridentina, and not phylogenetically related to M. kakiicolor.
Morchella dunensis, the morel of the dunes, is a species of fungus in the family Morchellaceae (Ascomycota). It was first described as a form of Morchella esculenta by Castañera and colleagues in 1996, but was later recombined as a distinct species by Clowez. In a 2014 study by Richard and colleagues, the authors concluded that the taxon was conspecific to Morchella vulgaris, due to its close phylogenetic proximity to the latter. However, following increased molecular sampling and the testing of an isoparatype collection by Loizides and colleagues in 2016, it was revealed that M. dunensis is indeed very closely related to, but phylogenetically distinct from M. vulgaris. This study also showed that the taxon Morchella andalusiae is phylogenetically identical and therefore a later synonym of M. dunensis.
Morchella exuberans is a species of fungus in the family Morchellaceae (Ascomycota). It was described as new to science in a 2012 study by Clowez and corresponds to phylogenetic lineage Mel-9. Morchella capitata, described by Kuo and colleagues later in the same year, is a synonym of this taxon.
Morchella steppicola, commonly known as the morel of the steppes or blistered morel, is a species of fungus in the family Morchellaceae (Ascomycota). Originally described from the steppic meadows of Ukraine in 1941, this ancient relic of the last ice age corresponds to Mes-1, the earliest-diverging phylogenetic lineage in section Esculenta.
Morchella casteneae is a species of fungus in the family Morchellaceae (Ascomycota). It was described as new to science in a 2012 study by Clowez and appears to be confined to the Iberian peninsula. A subsequent phylogenetic and nomenclatural study by Richard and colleagues has confirmed M. castaneae as a distinct species and showed the taxa Morchella brunneorosea and Morchella brunneorosea var. sordida to be synonymous.
Morchella sceptriformis is a species of fungus in the family Morchellaceae (Ascomycota). It was described as new to science in a 2012 study by Clowez, and corresponds to phylogenetic lineage Mes-3. Morchella virginiana, described later in the same year by Kuo and colleagues, is conspecific to this taxon.
References
- ↑ Ruini S. (2000). "Una nuova specie da Varese, Morchella varisiensis sp. nov" [A new species of fungus, Morchella varisiensis sp. nov.]. Rivista di Micologia (in Italian). 43 (1): 17–26.
- ↑ Richard F, Bellanger JM, Clowez P, Hansen K, O'Donnell K, Urban A, Sauve M, Courtecuisse R, Moreau PA (2015). "True morels (Morchella, Pezizales) of Europe and North America: evolutionary relationships inferred from multilocus data and a unified taxonomy". Mycologia. 107 (2): 359–382. doi: 10.3852/14-166 . PMID 25550303.
