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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 subfa ... [...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 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 ''Alophia'' is a small genus of perennial, herbaceous and bulbous plants in the family Iridaceae. The genus comprise five known species that occur from the South-central United States as well as in Mexico, Central America, and parts of South Am ...'' * '' Calydorea'' * '' Cardenanthus'' * '' Cipura'' * '' Cobana'' * '' Cypella'' * '' Eleutherine'' * '' Ennealophus'' * '' Gelasine'' * '' Herbertia'' * '' Hesperoxiphion'' * '' Larentia'' * '' Mastigostyla'' * '' Nemastylis'' * '' Tigridia'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iridaceae
Iridaceae is a family of plants in order Asparagales, taking its name from the irises, meaning rainbow, referring to its many colours. There are 66 accepted genera with a total of c. 2244 species worldwide (Christenhusz & Byng 2016). It includes a number of other well known cultivated plants, such as freesias, gladioli and crocuses. 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. Name and history The family name is based on the genus ''Iris'', the 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 Olympus to earth along a rainbow, whose colours were seen by Linnaeus in the multi-hued petals of many of the species. The family is current ... [...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'' *''Solenomelus ''Solenomelus'' is a genus of South American (Argentina & Chile) species of flowering plants in the family Iridaceae. They are very closely allied to Sisyrinchium with rhizomes, flowers with a perianth tube and a style t ... [...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 predominantly photosynthetic eukaryotes of the kingdom Plantae. Historically, the plant kingdom encompassed all living things that were not animals, and included algae and fungi; however, all current definitions of Plantae exclud ...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. S ... [...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. The flower is commonly attributed with the fleur-de-lis. 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 simila ... [...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'' * ''Iris danfordiae'' Baker. * ''Iris histrio'' Rchb. f. * ''Iris histrioides'' G.F.Wilson. * '' ... [...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 Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ... 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 South Africa ~ 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 or shell flowers, they have large showy flowers; and one species, ''Tigridia pavonia'', is often cultivated for this. The approximately 35 species in this family grow in the Americas, from Mexico 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'' "jaguar flower". The genus name ''Tigridia'' means "tiger-like", and alludes to the coloration and spotting of the flowers of the type species ''Tigridia pavonia''.Standley, P. C. & J. A. Steyermark. 1952. Iridaceae. In Flora of Guatemala - Part III. Fieldiana, Botany 24(3): 159–178 Species * ''Tigridia albicans'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seed
A seed is an embryonic plant enclosed in a protective outer covering, along with a food reserve. The formation of the seed is a part of the process of reproduction in seed plants, the spermatophytes, including the gymnosperm and angiosperm plants. Seeds are the product of the ripened ovule, after the embryo sac is fertilized by 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 seed coat arises from the integuments of the ovule. Seeds have been an important development in the reproduction and success of vegetable gymnosperm and angiosperm plants, relative to more primitive plants such as ferns, mosses and liverworts, which do not have seeds and use water-dependent means to propagate themselves. Seed plants now dominate biological niches on land, from forests to grasslands both in hot and cold climates. The term "seed" also has a general me ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stamen
The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ 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 and are attached to the filament either at the base or in the middle area of the anther. The sterile tissue between the lobes is called the 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 stamens in a flower are collectively called the androecium. The androecium can consist of as few as one-half stamen (i.e. a single locule) as in ''Canna (plant), Canna'' species or as many as 3,482 stamens which have been counted in the saguaro (''Carnegiea gigantea'' ... [...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 ''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 Gree ...'' (Aarón Rodr. & Ortiz-Cat.) Ravenna - Jalis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scent
An odor (American English) or odour (Commonwealth English; see spelling differences) is caused by one or more volatilized chemical compounds that are generally found in low concentrations that humans and animals can perceive via their sense of smell. An odor is also called a "smell" or a "scent", which can refer to either a pleasant or an unpleasant odor. While "odor" and "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. Physiology of smell 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. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
