|
Iridoideae
Iridoideae is one of the two main subfamilies in the popular family Iridaceae. It contains the best-known genus - ''Iris''. The members of this subfamily are widely distributed worldwide. They grow in all continents except Antarctica. They produce typical sword-shaped leaves and have mainly corms or rhizomes. There are some exceptions which have bulbs. These are two subgenera of ''Iris'' - '' Xiphium'' and '' Hermodactyloides''. The blooms, which are often scented, are arranged in often terminal inflorescences. Each flower has six petals. In most cases three of them are separated from the others and are specialized in different functions. However some are not, as in '' Nemastylis''. Nectar is produced in their base. In some of the species the stamens are partially fused with the petals. The 3-locular seed capsule contains the seeds which are often circular, flat in some cases drop-like grains coloured black or sometimes orange (''Iris pseudacorus''). The species in the subfami ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iridaceae
Iridaceae () is a family of plants in order Asparagales, taking its name from the Iris (plant), irises. It has a nearly global distribution, with 69 accepted genera with a total of about 2500 species. It includes a number of economically important cultivated plants, such as species of ''Freesia'', ''Gladiolus'', and ''Crocus'', as well as the crop saffron. Members of this family are perennial plants, with a bulb, corm or rhizome. The plants grow erect, and have leaves that are generally grass-like, with a sharp central fold. Some examples of members of this family are the blue flag and yellow flag. Etymology The family name comes from the genus ''Iris (plant), Iris'', the family's largest and best-known genus in Europe. This genus dates from 1753, when it was coined by Swedish botanist, Carl Linnaeus. Its name derives from the Greek goddess, Iris, who carried messages from Mount Olympus, Olympus to earth along a rainbow, whose colors were seen by Linnaeus in the multi-hued petal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tigridieae
Tigridieae is a tribe of plants in the subfamily Iridoideae and included in the family Iridaceae. It contains many perennials which have cormous rootstocks. The name of the tribe comes from its main genus - '' Tigridia''. The tribe is native to the New World The term "New World" is used to describe the majority of lands of Earth's Western Hemisphere, particularly the Americas, and sometimes Oceania."America." ''The Oxford Companion to the English Language'' (). McArthur, Tom, ed., 1992. New York: .... The flowers do not always have well differentiated petals like in many other Iridoideae. A considerable proportion of the tribe's members have identical petals as in '' Nemastylis'' or '' Calydorea''. List of genera: * '' Alophia'' * '' Calydorea'' * '' Cardenanthus'' * '' Cipura'' * '' Cobana'' * '' Cypella'' * '' Eleutherine'' * '' Ennealophus'' * '' Gelasine'' * '' Herbertia'' * '' Hesperoxiphion'' * '' Larentia'' * '' Mastigostyla'' * '' Nemastylis'' * '' Tigridia'' R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sisyrinchieae
Sisyrinchieae is the second largest tribe in the subfamily Iridoideae. The group is included in the family Iridaceae. It contains many perennials which are widely distributed in the New World. The leaves of the plants are sword-shaped or grass-like. The blooms appear in an inflorescence and have six tepals, which in most cases are identical, but in some genera like '' Diplarrena'' or ''Libertia,'' may differ. The ovary is 3-locular containing small seeds. The members are sometimes used as ornamental plants. Some are endangered and endemic to specific regions but many are naturalized, including some species of ''Sisyrinchium'', in the Old World and elsewhere. ;List of genera *''Libertia'' *''Olsynium'' *'' Orthrosanthus'' *''Sisyrinchium ''Sisyrinchium'' is a large genus of annual to perennial flowering plants in the family Iridaceae. Native to the New World, the species are known as blue-eyed grasses. Although they are not true grasses (Poaceae), they are monocots. Severa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trimezieae
Trimezieae is a tribe included in the subfamily Iridoideae of the family Iridaceae. It is the smallest tribe in this subfamily, containing only three closely related genera. The species are widely distributed only in South and Central America. A big part of the members are native to Brazil. They represents tropical plants which grows mainly in moist environments. The rootstock is a rhizome, the leaves are traditionally sword-shaped. The blooms are collected in inflorescence and contains six tepals. Three of them are different from the others. The ovary is 3-locular. The plant Plants are the eukaryotes that form the Kingdom (biology), kingdom Plantae; they are predominantly Photosynthesis, photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with c ...s have good ornamental traits but they are not very often used in cultivation. Some of them have more specific needs but some are much easier for growing. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iris Pseudacorus
''Iris pseudacorus'', the yellow flag, yellow iris, or water flag, is a species of flowering plant in the family Iridaceae. It is native to Europe, western Asia and northwest Africa. Its specific epithet ''pseudacorus'' means "false acorus", referring to the similarity of its leaves to those of '' Acorus calamus'' (sweet flag), as they have a prominently veined mid-rib and sword-like shape. However, the two plants are not closely related. Description This herbaceous flowering perennial plant grows to , or a rare tall, with erect leaves up to long and broad. The flowers are bright yellow, across, with the typical iris form. The fruit is a dry capsule long, containing numerous pale brown seeds. ''I. pseudacorus'' grows best in very wet conditions, and is common in wetlands, where it tolerates submersion, low pH, and anoxic soils. The plant spreads quickly, by both rhizome and water-dispersed seed. It fills a similar niche to that of ''Typha'' and often grows with it, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermodactyloides
The subgenus ''Hermodactyloides'' of Iris includes all reticulate-bulbed bulbous irises. It was formerly named as a genus, ''Iridodictyum'' by Rodionenko in 1961. but it was not widely accepted and most botanists preferred 'Hermodactyloides'. Édouard Spach named the genus in 1846. The word 'Hermodactyloides' comes from 'Hermes' , a Greek God, and 'daktylos' - finger. The name for the subgenus is very similar to ''Hermodactylus'' (the former name for '' Iris tuberosa''), which was originally a separate genus to irises, but in 2001 was re-classified to be within the ''Hermodactyloides'' sub-genus. Most species are native to central Europe and central Asia. They mostly have one or two long leaves and flower in early spring. Taxonomy The subgenus ''Hermodactyloides'' is subdivided into two sections; ''Reticulatae'' and ''Monolepsis''. Known species include: Section ''Reticulatae'' Section ''Monolepsis'' Originally Rodionenko created the genus ''Alatavia'' for ''Iris kolpako ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ferraria Crispa
''Ferraria crispa'' is a species of monocotyledonous flowering plant in the family Iridaceae. It is native to South Africa. In Australia Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ... it is commonly referred to as black flag. It is also known as starfish lily. Gallery Image:Ferraria crispa foliage.jpg, ''Ferraria crispa'' foliage Image:Ferraria crispa flowering.jpg, ''Ferraria crispa'' flowering References External linksFerraria crispa BurmFlorabase * Iridaceae Endemic flora of the Cape Provinces ~ Garden plants of Southern Africa {{Iridaceae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tigridia
''Tigridia'' , is a genus of bulbous or cormous flowering plants belonging to the family Iridaceae. With common names including peacock flowers, tiger flowers, jaguar flowers,Davidse, G., M. Sousa Sánchez & A.O. Chater. 1994. Alismataceae a Cyperaceae. 6: i–xvi, 1–543. In G. Davidse, M. Sousa Sánchez & A.O. Chater (eds.) Fl. Mesoamer.. Universidad Nacional Autónoma de México, México, D. F. or shell flowers, they have large showy flowers; and one species, '' Tigridia pavonia'', is often cultivated for this. The approximately 60 species in this family grow in the Americas, from Mexico down to Chile. The ''tigridia'' flower is short lived, each often blooming for only one day, but often several flowers will bloom from the same stalk. Usually they are dormant during the winter dry-season. The roots are edible and were eaten by the Aztecs of Mexico who called it ''cacomitl'', and its flower ''ocēlōxōchitl'' meaning "jaguar flower". It was first published by French botanis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seed
In botany, a seed is a plant structure containing an embryo and stored nutrients in a protective coat called a ''testa''. More generally, the term "seed" means anything that can be Sowing, sown, which may include seed and husk or tuber. Seeds are the product of the ripened ovule, after the embryo sac is fertilization, fertilized by Pollen, sperm from pollen, forming a zygote. The embryo within a seed develops from the zygote and grows within the mother plant to a certain size before growth is halted. The formation of the seed is the defining part of the process of reproduction in seed plants (spermatophytes). Other plants such as ferns, mosses and marchantiophyta, liverworts, do not have seeds and use water-dependent means to propagate themselves. Seed plants now dominate biological Ecological niche, niches on land, from forests to grasslands both in hot and cold climates. In the flowering plants, the ovary ripens into a fruit which contains the seed and serves to disseminate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stamen
The stamen (: stamina or stamens) is a part consisting of the male reproductive organs of a flower. Collectively, the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament and an anther which contains sporangium, microsporangia. Most commonly, anthers are two-lobed (each lobe is termed a locule) and are attached to the filament either at the base or in the middle area of the anther. The sterile (i.e. nonreproductive) tissue between the lobes is called the Connective (botany), connective, an extension of the filament containing conducting strands. It can be seen as an extension on the dorsal side of the anther. A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte. The size of anthers differs greatly, from a tiny fraction of a millimeter in ''Wolfia'' spp up to five inches (13 centimeters) in ''Canna iridiflora'' and ''Strelitzia nicolai''. The stamens in a flower ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nemastylis
''Nemastylis'', or pleatleaf, is a genus of flowering plants in the family Iridaceae, first described as a genus in 1835. It is native to Mexico, Central America, and the southern part of the United States. The genus name is derived from the Greek words ''nema'', meaning "thread", and ''stylos'', meaning "pillar" or "rod". ; Species * '' Nemastylis floridana'' Small - Florida * '' Nemastylis geminiflora'' Nutt. - south-central United States * '' Nemastylis nuttallii'' Pickering ex R.C. Foster - Texas, Oklahoma, Arkansas, Missouri * '' Nemastylis selidandra'' Ravenna - Texas * '' Nemastylis tenuis'' (Herb.) S.Watson - Mexico, Guatemala, Honduras, Texas, Arizona * '' Nemastylis tuitensis'' (Aarón Rodr. & Ortiz-Cat.) Ravenna - Jalisco State in Mexico ; formerly included * ''Nemastylis pearcei'' Baker = ''Tigridia pearcei'' (Baker) Ravenna * ''Nemastylis mcvaughii'' Molseed & Cruden = ''Tigridia convoluta ''Tigridia'' , is a genus of bulbous or cormous flowering plants belonging ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scent
An odor (American English) or odour (English in the Commonwealth of Nations, Commonwealth English; American and British English spelling differences#-our, -or, see spelling differences) is a smell or a scent caused by one or more volatilized chemical compounds generally found in low concentrations that humans and many animals can perceive via their olfactory system. While ''smell'' can refer to pleasant and unpleasant odors, the terms ''scent'', ''aroma'', and ''fragrance'' are usually reserved for pleasant-smelling odors and are frequently used in the food and cosmetic industry to describe floral scents or to refer to perfumes. Odor physiology Sense of smell The perception of odors, or sense of smell, is mediated by the olfactory nerve. The olfactory receptor (OR) cells are neurons present in the olfactory epithelium, which is a small patch of tissue at the back of the nasal cavity. There are millions of olfactory receptor neurons that act as sensory signaling cells. Ea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
