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Mentha Gattefossei
''Mentha gattefossei'' is a plant species in the genus ''Mentha'', endemic to the Atlas Mountains of Morocco. It was first described by French botanist René Maire in 1922. Harvested for its essential oil, ''M. gattefossei'' has seen use in traditional medicine, pest control and as a food seasoning. Name When he described it in 1922, Maire named ''Mentha gattefossei'' in honor of botanist Jean Gattefossé, in recognition of his contributions to the study of Moroccan herbs and aromatic plants. Its vernacular names include Arabic , as well as French and . Taxonomy ''Mentha gattefossei'' is accepted as a distinct species by authorities such as Plants of the World Online. Within the mints, it has historically been grouped with relatives such as ''Mentha pulegium'', ''Mentha requienii'' and ''Mentha grandiflora'' within the "Pulegium" section. This was owing to a homoplasy in morphological features between it and ''M. pulegium''. Maire himself, however, had speculated an ancestral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
René Maire
René Charles Joseph Ernest Maire (29 May 1878, Lons-le-Saunier – 24 November 1949) was a French botanist and mycologist. His major work was the ''Flore de l'Afrique du Nord'' in 16 volumes published posthumously in 1953. He collected plants from Algeria, Morocco, France, and Mali for the herbarium of the National Botanic Garden of Belgium. Biography His botanical career began very early. At 18, he penned a work on the local flora of the Haute-Saône, currently on display at the Natural History Museum of Gray. He collected plants for study in Algeria and Morocco between 1902 and 1904. After obtaining his PhD in 1905, he was a professor of botany at the Faculty of Sciences in Algiers starting in 1911 where he specialised in phytopathology. He was put in charge of botanical research by the Moroccan government and was responsible for botanical studies in the Central Sahara. He was a member of a number of institutions, including the ''Société mycologique de France'' and the ''Soc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetics
In biology, phylogenetics (; from Greek language, Greek wikt:φυλή, φυλή/wikt:φῦλον, φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups of organisms. These relationships are determined by Computational phylogenetics, phylogenetic inference methods that focus on observed heritable traits, such as DNA sequences, Protein, protein Amino acid, amino acid sequences, or Morphology (biology), morphology. The result of such an analysis is a phylogenetic tree—a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms. The tips of a phylogenetic tree can be living taxa or fossils, and represent the "end" or the present time in an evolutionary lineage. A phylogenetic diagram can be rooted or unrooted. A rooted tree diagram indicates the hypothetical common ancestor of the tree. An un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mentha Gattefossei - Close-up 1 (aka)
''Mentha'' (also known as mint, from Greek , Linear B ''mi-ta'') is a genus of plants in the family Lamiaceae (mint family). The exact distinction between species is unclear; it is estimated that 13 to 24 species exist. Hybridization occurs naturally where some species' ranges overlap. Many hybrids and cultivars are known. The genus has a subcosmopolitan distribution across Europe, Africa - (Southern Africa), Asia, Australia - Oceania, North America and South America. Its species can be found in many environments, but most grow best in wet environments and moist soils. Description Mints are aromatic, almost exclusively perennial herbs. They have wide-spreading underground and overground stolons and erect, square, branched stems. Mints will grow 10–120 cm (4–48 inches) tall and can spread over an indeterminate area. Due to their tendency to spread unchecked, some mints are considered invasive. The leaves are arranged in opposite pairs, from oblong to lanceolate, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bract
In botany, a bract is a modified or specialized leaf, especially one associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves. They may be smaller, larger, or of a different color, shape, or texture. Typically, they also look different from the parts of the flower, such as the petals or sepals. A plant having bracts is referred to as bracteate or bracteolate, while one that lacks them is referred to as ebracteate and ebracteolate, without bracts. Variants Some bracts are brightly-coloured and serve the function of attracting pollinators, either together with the perianth or instead of it. Examples of this type of bract include those of ''Euphorbia pulcherrima'' (poinsettia) and ''Bougainvillea'': both of these have large colourful bracts surrounding much smaller, less colourful flowers. In grasses, each floret (flower) is enclosed in a pair of papery bracts, called the lemma (lower bract) and p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mentha Gattefossei - Close-up 2 (aka)
''Mentha'' (also known as mint, from Greek , Linear B ''mi-ta'') is a genus of plants in the family Lamiaceae (mint family). The exact distinction between species is unclear; it is estimated that 13 to 24 species exist. Hybridization occurs naturally where some species' ranges overlap. Many hybrids and cultivars are known. The genus has a subcosmopolitan distribution across Europe, Africa - (Southern Africa), Asia, Australia - Oceania, North America and South America. Its species can be found in many environments, but most grow best in wet environments and moist soils. Description Mints are aromatic, almost exclusively perennial herbs. They have wide-spreading underground and overground stolons and erect, square, branched stems. Mints will grow 10–120 cm (4–48 inches) tall and can spread over an indeterminate area. Due to their tendency to spread unchecked, some mints are considered invasive. The leaves are arranged in opposite pairs, from oblong to lanceolate, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mentha Aquatica
''Mentha aquatica'' (water mint; syn. ''Mentha hirsuta'' Huds.Euro+Med Plantbase Project''Mentha aquatica'') is a perennial flowering plant in the mint family Lamiaceae. It grows in moist places and is native to much of Europe, northwest Africa and southwest Asia.Flora of NW Europe''Mentha aquatica'' Description Water mint is a herbaceous rhizomatous perennial plant growing to tall. The stems are square in cross section, green or purple, and variably hairy to almost hairless. The rhizomes are wide-spreading, fleshy, and bear fibrous roots. The leaves are ovate to ovate-lanceolate, long and broad, green (sometimes purplish), opposite, toothed, and vary from hairy to nearly hairless. The flowers of the watermint are tiny, densely crowded, purple, tubular, pinkish to lilac in colour and form a terminal hemispherical inflorescence; flowering is from mid to late summer. Water mint is visited by many types of insects, and can be characterized by a generalized pollination syndrome, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mentha Arvensis
''Mentha arvensis'', the corn mint, field mint, or wild mint, is a species of flowering plant in the mint family Lamiaceae. It has a circumboreal distribution, being native to the temperate regions of Europe and western and central Asia, east to the Himalaya and eastern Siberia, and North America. ''Mentha canadensis'', the related species, is also included in ''Mentha arvensis'' by some authors as two varieties, ''M. arvensis'' var. ''glabrata'' Fernald (North American plants such as American Wild Mint) and ''M. arvensis'' var. ''piperascens'' Malinv. ex L. H. Bailey (eastern Asian plants such as Japanese mint). It grows in moist places, especially along streams. Description Wild mint is a herbaceous perennial plant generally growing to and rarely up to tall. It has a creeping rootstock from which grow erect or semi-sprawling squarish stems. The leaves are in opposite pairs, simple, long and broad, hairy, and with a coarsely serrated margin. The flowers are pale purple (o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Powdery Mildew
Powdery mildew is a fungal disease that affects a wide range of plants. Powdery mildew diseases are caused by many different species of ascomycete fungi in the order Erysiphales. Powdery mildew is one of the easier plant diseases to identify, as its symptoms are quite distinctive. Infected plants display white powdery spots on the leaves and stems. The lower leaves are the most affected, but the mildew can appear on any above-ground part of the plant. As the disease progresses, the spots get larger and denser as large numbers of asexual spores are formed, and the mildew may spread up and down the length of the plant. Powdery mildew grows well in environments with high humidity and moderate temperatures. Greenhouses provide an ideal moist, temperate environment for the spread of the disease. This causes harm to agricultural and horticultural practices where powdery mildew may thrive in a greenhouse setting. In an agricultural or horticultural setting, the pathogen can be controlle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hybrid (biology)
In biology, a hybrid is the offspring resulting from combining the qualities of two organisms of different breeds, varieties, species or genera through sexual reproduction. Hybrids are not always intermediates between their parents (such as in blending inheritance), but can show hybrid vigor, sometimes growing larger or taller than either parent. The concept of a hybrid is interpreted differently in animal and plant breeding, where there is interest in the individual parentage. In genetics, attention is focused on the numbers of chromosomes. In taxonomy, a key question is how closely related the parent species are. Species are reproductively isolated by strong barriers to hybridisation, which include genetic and morphological differences, differing times of fertility, mating behaviors and cues, and physiological rejection of sperm cells or the developing embryo. Some act before fertilization and others after it. Similar barriers exist in plants, with differences in flowering tim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chromosome
A chromosome is a long DNA molecule with part or all of the genetic material of an organism. In most chromosomes the very long thin DNA fibers are coated with packaging proteins; in eukaryotic cells the most important of these proteins are the histones. These proteins, aided by chaperone proteins, bind to and condense the DNA molecule to maintain its integrity. These chromosomes display a complex three-dimensional structure, which plays a significant role in transcriptional regulation. Chromosomes are normally visible under a light microscope only during the metaphase of cell division (where all chromosomes are aligned in the center of the cell in their condensed form). Before this happens, each chromosome is duplicated ( S phase), and both copies are joined by a centromere, resulting either in an X-shaped structure (pictured above), if the centromere is located equatorially, or a two-arm structure, if the centromere is located distally. The joined copies are now called si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mentha Japonica
''Mentha japonica'' is a plant species in the genus ''Mentha'', endemic to the islands of Hokkaido and Honshu, Japan. Initially described as ''Micromeria japonica'' by Friedrich Anton Wilhelm Miquel, it was first identified under its present name by Japanese botanist Tomitaro Makino in 1906. A relatively rare plant, it is classified by the Japanese Ministry of Environment as a Near Threatened species. Name image:Makino Tomitaro.jpg, 200px, ''Mentha japonica'' was first described by Japanese botanist Tomitaro Makino ''Mentha japonicas binomial nomenclature, botanical name is derived from its country of origin, Japan. Its Japanese language, Japanese-language vernacular names are and () - "princess mint". This latter common name is said to derive from the plant's small size compared to other mint species. In the Japanese literary system of hanakotoba, ''M. japonica'' is used as a metaphor for virtue (徳). Taxonomy ''Mentha japonica'' is now generally accepted as a distinct species ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediterranean Sea
The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant. The Sea has played a central role in the history of Western civilization. Geological evidence indicates that around 5.9 million years ago, the Mediterranean was cut off from the Atlantic and was partly or completely desiccated over a period of some 600,000 years during the Messinian salinity crisis before being refilled by the Zanclean flood about 5.3 million years ago. The Mediterranean Sea covers an area of about , representing 0.7% of the global ocean surface, but its connection to the Atlantic via the Strait of Gibraltar—the narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates the Iberian Peninsula in Europe from Morocco in Africa—is only wide. The Mediterranean Sea e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
