Only two of the genera, Sequoia and Sequoiadendron, are known for massive trees. Metasequoia, with the living species Metasequoia glyptostroboides, are much smaller.
Only two of the genera, Sequoia and Sequoiadendron, are known for massive trees. Metasequoia, with the living species Metasequoia glyptostroboides, are much smaller.
Ginkgo is a monotypic genus of highly unusual non-flowering plants. The scientific name is also used as the English name. The order to which it belongs, Ginkgoales, first appeared in the Permian,[4] 270 million years ago, possibly derived from “seed ferns” of the order Peltaspermales, and now only contains this single genus and species. The rate of evolution within the genus has been slow, and almost all its species had become extinct by the end of the Pliocene; the exception is the sole living species, Ginkgo biloba, which is only found in the wild in China, but is cultivated across the world. The relationships between ginkgos and other groups of plants are not fully resolved.
Ginkgo is a monotypic genus of highly unusual non-flowering plants. The scientific name is also used as the English name. The order to which it belongs, Ginkgoales, first appeared in the Permian,[4] 270 million years ago, possibly derived from “seed ferns” of the order Peltaspermales, and now only contains this single genus and species. The rate of evolution within the genus has been slow, and almost all its species had become extinct by the end of the Pliocene; the exception is the sole living species, Ginkgo biloba, which is only found in the wild in China, but is cultivated across the world. The relationships between ginkgos and other groups of plants are not fully resolved.
Ginkgo is a monotypic genus of highly unusual non-flowering plants. The scientific name is also used as the English name. The order to which it belongs, Ginkgoales, first appeared in the Permian,[4] 270 million years ago, possibly derived from “seed ferns” of the order Peltaspermales, and now only contains this single genus and species. The rate of evolution within the genus has been slow, and almost all its species had become extinct by the end of the Pliocene; the exception is the sole living species, Ginkgo biloba, which is only found in the wild in China, but is cultivated across the world. The relationships between ginkgos and other groups of plants are not fully resolved.
Ginkgo is a monotypic genus of highly unusual non-flowering plants. The scientific name is also used as the English name. The order to which it belongs, Ginkgoales, first appeared in the Permian,[4] 270 million years ago, possibly derived from “seed ferns” of the order Peltaspermales, and now only contains this single genus and species. The rate of evolution within the genus has been slow, and almost all its species had become extinct by the end of the Pliocene; the exception is the sole living species, Ginkgo biloba, which is only found in the wild in China, but is cultivated across the world. The relationships between ginkgos and other groups of plants are not fully resolved.
Vallisneria (named in honor of Antonio Vallisneri[3][4]) is a genus of freshwateraquatic plant, commonly called eelgrass, tape grass or vallis. The genus is widely distributed in tropical and subtropical regions of Asia, Africa, Europe, and North America.[2]
Vallisneria is a submerged plant that spreads by runners and sometimes forms tall underwater meadows. Leaves arise in clusters from their roots. The leaves have rounded tips, and definite raised veins. Single white female flowers grow to the water surface on very long stalks.[3] Male flowers grow on short stalks, become detached, and float to the surface.[3] The fruit is a banana-like capsule having many tiny seeds.[5][6]
Sometimes it is confused with the superficially similar Sagittaria when grown submerged.
Vallisneria (named in honor of Antonio Vallisneri[3][4]) is a genus of freshwateraquatic plant, commonly called eelgrass, tape grass or vallis. The genus is widely distributed in tropical and subtropical regions of Asia, Africa, Europe, and North America.[2]
Vallisneria is a submerged plant that spreads by runners and sometimes forms tall underwater meadows. Leaves arise in clusters from their roots. The leaves have rounded tips, and definite raised veins. Single white female flowers grow to the water surface on very long stalks.[3] Male flowers grow on short stalks, become detached, and float to the surface.[3] The fruit is a banana-like capsule having many tiny seeds.[5][6]
Sometimes it is confused with the superficially similar Sagittaria when grown submerged.
Vallisneria (named in honor of Antonio Vallisneri[3][4]) is a genus of freshwateraquatic plant, commonly called eelgrass, tape grass or vallis. The genus is widely distributed in tropical and subtropical regions of Asia, Africa, Europe, and North America.[2]
Vallisneria is a submerged plant that spreads by runners and sometimes forms tall underwater meadows. Leaves arise in clusters from their roots. The leaves have rounded tips, and definite raised veins. Single white female flowers grow to the water surface on very long stalks.[3] Male flowers grow on short stalks, become detached, and float to the surface.[3] The fruit is a banana-like capsule having many tiny seeds.[5][6]
Sometimes it is confused with the superficially similar Sagittaria when grown submerged.
Vallisneria (named in honor of Antonio Vallisneri[3][4]) is a genus of freshwateraquatic plant, commonly called eelgrass, tape grass or vallis. The genus is widely distributed in tropical and subtropical regions of Asia, Africa, Europe, and North America.[2]
Vallisneria is a submerged plant that spreads by runners and sometimes forms tall underwater meadows. Leaves arise in clusters from their roots. The leaves have rounded tips, and definite raised veins. Single white female flowers grow to the water surface on very long stalks.[3] Male flowers grow on short stalks, become detached, and float to the surface.[3] The fruit is a banana-like capsule having many tiny seeds.[5][6]
Sometimes it is confused with the superficially similar Sagittaria when grown submerged.
Botrytis cinerea (“botrytis” from Ancient Greekbotrys (βότρυς)meaning “grapes”[1] plus the Neolatin suffix -itis for disease) is a necrotrophicfungus that affects many plant species, although its most notable hosts may be wine grapes. In viticulture, it is commonly known as botrytis bunch rot; in horticulture, it is usually called grey mould or gray mold.
The fungus gives rise to two different kinds of infections on grapes. The first, grey rot, is the result of consistently wet or humid conditions, and typically results in the loss of the affected bunches. The second, noble rot, occurs when drier conditions follow wetter, and can result in distinctive sweet dessert wines, such as Sauternes or the Aszú of Tokaji/Grasă de Cotnari. The species name Botrytis cinerea is derived from the Latin for “grapes like ashes”; although poetic, the “grapes” refers to the bunching of the fungal spores on their conidiophores, and “ashes” just refers to the greyish colour of the spores en masse. The fungus is usually referred to by its anamorph (asexual form) name, because the sexual phase is rarely observed. The teleomorph (sexual form) is an ascomycete, Botryotinia fuckeliana, also known as Botryotinia cinerea (see taxonomy box).
Black bread mold (Rhizopus stolonifer) is a widely distributed thread-like mucoraleanmold. Commonly found on bread surfaces, it takes food and nutrients from the bread and causes damage to the surface where it lives.
Asexual spores are formed within pinhead-like sporangia, which break to release the spores when mature. Germination of these spores forms the haploid hyphae of a new mycelium. R. stolonifer grows rapidly at temperatures between 15 and 30°C.[1]
Black bread mold (Rhizopus stolonifer) is a widely distributed thread-like mucoraleanmold. Commonly found on bread surfaces, it takes food and nutrients from the bread and causes damage to the surface where it lives.
Asexual spores are formed within pinhead-like sporangia, which break to release the spores when mature. Germination of these spores forms the haploid hyphae of a new mycelium. R. stolonifer grows rapidly at temperatures between 15 and 30°C.[1]
