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Euphorbia Stygiana
''Euphorbia stygiana'' (Portuguese: ''Trovisco-macho'') is a species of evergreen shrub in the family Euphorbiaceae, endemic to several islands of the Azores. It has a critically endangered subspecies (subsp. ''santamariae'') with only 20 known remaining mature individuals in the wild. Description ''Euphorbia stygiana'' is an evergreen shrub with low but robust serpentine, green stems; white-veined, thick, leathery blue-dark green leaves and large yellow-green flower heads which are strongly honey-scented in spring and summer (from May to June). It can grow up to about tall in its native environment but is often tall and spreads to about wide. The leaves are long, slightly pubescent on the bottom side. The fruits are , striated, subglobous and warty. During cold winters (especially outside its native range) these leaves may turn to a brilliant crimson colour. It is hardy down to USDA Zone 8b: to and can be propagated through stem cuttings. Distribution and habitat ''Eup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Catalogue Of Life
The Catalogue of Life is an online database that provides an index of known species of animals, plants, fungi, and microorganisms. It was created in 2001 as a partnership between the global Species 2000 and the American Integrated Taxonomic Information System. The Catalogue is used by research scientists, citizen scientists, educators, and policy makers. The Catalogue is also used by the Biodiversity Heritage Library, the Barcode of Life Data System, Encyclopedia of Life, and the Global Biodiversity Information Facility. The Catalogue currently compiles data fro165 peer-reviewed taxonomic databasesthat are maintained by specialist institutions around the world. , the COL Checklist lists 2,067,951 of the world's 2.2m extant species known to taxonomists on the planet at present time. Structure The Catalogue of Life employs a simple data structure to provide information on synonymy, grouping within a taxonomic hierarchy, common names, distribution and ecological environment. It pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pico Island
Pico Island (''Ilha do Pico,'' ) is an island in the Central Group of the Portuguese Azores. The landscape features an eponymous volcano, Ponta do Pico, which is the highest mountain in Portugal, the Azores, and the highest elevation of the Mid-Atlantic Ridge. In the tradition of the Portuguese poet, Raul Brandão, Pico is referred to as the ''Ilha Preta'' ("Black Island"), for its black volcanic soils, which nourish its UNESCO-designated vineyards that once allowed the development of the island's economy. Pico is the second largest and, geologically speaking, the most recently formed island of the Azores, being around 300,000 years old. History The exact date of the island's discovery is not known. However, in the 1375 Catalan Atlas, Pico is depicted along several other islands of the Azores, where it is labelled as ''li colunbj''. In Cristoforo Soligo's map from 1475, Pico is described both as Dom Diniz (or São Diniz) island and as ''Insula Columbi''. Although the Azor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euphorbia
''Euphorbia'' is a very large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae. "Euphorbia" is sometimes used in ordinary English to collectively refer to all members of Euphorbiaceae (in deference to the type genus), not just to members of the genus. Euphorbias range from tiny annual plants to large and long-lived trees. The genus has roughly 2,000 members, making it one of the largest genera of flowering plants. It also has one of the largest ranges of chromosome counts, along with ''Rumex'' and ''Senecio''. ''Euphorbia antiquorum'' is the type species for the genus ''Euphorbia''. It was first described by Carl Linnaeus in 1753 in ''Species Plantarum''. Some euphorbias are widely available commercially, such as poinsettias at Christmas. Some are commonly cultivated as ornamentals, or collected and highly valued for the aesthetic appearance of their unique floral structures, such as the crown of thorns plant (''Euphorbia milii''). ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUCN
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graciosa Island
Graciosa Island () (literally "graceful" or "enchanting" in Portuguese) is referred to as the ''White Island'', the northernmost of the Central Group of islands in the Azores. The ovular Portuguese island has an area of , a length of and a width of . It is a volcanic island, dominated by a central caldera (the Caldeira) located in the southeast. History In addition to the other islands of the Central Group, Graciosa was explored by Portuguese navigators during the first quarter of the 15th century, although there exist no accounts of the first sighting of the island. May 2, 1450 has frequently been referred to as the date of the island's "discovery", although there exists no documentation to support this date. Paradoxically, it is clear that in 1440, by order of Prince Henry the Navigator, cattle and swine were settled on the island in order to facilitate colonization. Similarly, it is unclear the names of the first settlers to colonize the island, although around 1450 t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extrafloral Nectaries
Nectar is a sugar-rich liquid produced by plants in glands called nectaries or nectarines, either within the flowers with which it attracts pollination, pollinating animals, or by extrafloral nectaries, which provide a nutrient source to animal Mutualism (biology), mutualists, which in turn provide plant defense against herbivory#Indirect defenses, herbivore protection. Common nectar-consuming pollinators include mosquitoes, hoverfly, hoverflies, wasps, bees, butterfly, butterflies and moths, hummingbirds, honeyeaters and Bat#Fruit and nectar, bats. Nectar plays a crucial role in the foraging economics and evolution of nectar-eating species; for example, nectar foraging behavior is largely responsible for the divergent evolution of the African honey bee, African bee, ''A. m. scutellata'' and the western honey bee. Nectar is an economically important substance as it is the sugar source for honey. It is also useful in agriculture and horticulture because the adult stages of so ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Leaf Vein
A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system. In most leaves, the primary photosynthetic tissue is the palisade mesophyll and is located on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of ''Eucalyptus'', palisade mesophyll is present on both sides and the leaves are said to be isobilateral. Most leaves are flattened and have distinct upper (adaxial) and lower (abaxial) surfaces that differ in color, hairiness, the number of stomata (pores that intake and output gases), the amount and structure of epicuticular wax and other features. Leaves are mostly green in color due to the presence of a compound called chlorophyll that is essential for photosynthesis as it absorbs light en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pittosporum Undulatum
''Pittosporum undulatum'' is a fast-growing tree in the family Pittosporaceae. It is sometimes also known as sweet pittosporum, native daphne, Australian cheesewood, Victorian box or mock orange. ''P. undulatum'' has become invasive in parts of Australia where it is not indigenous. It is also highly invasive in South Africa, the Caribbean, Hawaii, the Azores and southern Brazil. Description ''Pittosporum undulatum'' grows as a shrub or small tree to tall. Its evergreen leaves are lance-shaped (lanceolate), with wavy (undulating) margins. It carries conspicuous orange woody fruits about 1 cm in diameter for several months after flowering in spring or early summer. Taxonomy French botanist Étienne Pierre Ventenat described ''Pittosporum undulatum'' in 1802. Distribution and habitat Originally ''Pittosporum undulatum'' grew in moist areas on the Australian east coast, where its natural range was from south-east Queensland to eastern Victoria, but has increased its range ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Santa Maria Island
Santa Maria () is an island in the Eastern Group, Azores, eastern group of the Azores archipelago (south of the island of São Miguel Island, São Miguel) and the southernmost island in the Azores. The island is known for its white sand beaches, distinctive chimneys, and dry warm weather. History The first records of a group of islands in the Atlantic (aside from the legends of Atlantis) came from the voyages of Portuguese sailors during the reigns of Dinis of Portugal, King Denis (1279–1325) and his successor Afonso IV of Portugal, King Afonso IV (1325–1357). These were unsubstantiated accounts and unofficial, until 1427 when navigator Diogo de Silves found the island of Santa Maria (at that time referred to on nautical charts as ''Ilha dos Lobos'' or ''Ilha do Ovo'') during his journey to Madeira. Myth tells that on the day of the island's discovery, Gonçalo Velho Cabral and his crew were celebrating mass (on the feast day of the Virgin Mary), when one of the lookouts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Euphorbia Stygiana - Botanischer Garten, Frankfurt Am Main - DSC03147
''Euphorbia'' is a very large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae. "Euphorbia" is sometimes used in ordinary English to collectively refer to all members of Euphorbiaceae (in deference to the type genus), not just to members of the genus. Euphorbias range from tiny annual plants to large and long-lived trees. The genus has roughly 2,000 members, making it one of the largest genera of flowering plants. It also has one of the largest ranges of chromosome counts, along with ''Rumex'' and ''Senecio''. ''Euphorbia antiquorum'' is the type species for the genus ''Euphorbia''. It was first described by Carl Linnaeus in 1753 in ''Species Plantarum''. Some euphorbias are widely available commercially, such as poinsettias at Christmas. Some are commonly cultivated as ornamentals, or collected and highly valued for the aesthetic appearance of their unique floral structures, such as the crown of thorns plant (''Euphorbia milii''). S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Juniperus Brevifolia
''Juniperus brevifolia'', the Azores juniper, is a species of juniper, endemic to the Azores (on Corvo, Faial, Flores, Pico, Santa Maria, São Jorge, São Miguel, and Terceira), where it occurs at altitudes of , rarely up to . It is closely related to ''Juniperus oxycedrus'' (prickly juniper) of the Mediterranean region and ''Juniperus cedrus'' (Canary Islands juniper) of the neighboring Macaronesian islands. It is threatened by habitat loss.Adams, R. P. (2004). ''Junipers of the World''. Trafford. Farjon, A. (2005). ''Monograph of Cupressaceae and Sciadopitys''. Royal Botanic Gardens, Kew. Thomas, P. 2013''Juniperus brevifolia''.The IUCN Red List of Threatened Species. Version 2015.2. Downloaded on 01 September 2015. It is a shrub or small tree growing to a height of and a trunk diameter up to . The leaves are evergreen, needle-like, in whorls of three, glaucous green, long and 1–3 mm broad, with a double white stomatal band (split by a green midrib) on the inner su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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