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Dudleya Crassifolia
''Dudleya crassifolia'' is a species of drought deciduous, corm-forming succulent plant known by common name as the thick-leaf dudleya. It is an incredibly rare and cryptic plant native to one small locale less than a hectare in area on the Colonet peninsula in Baja California. It is threatened by urban development, including a proposed seaport. It is characterized by white, spreading flowers with leaf bases that are persistent on the stem.Dodero, M. W. and M. G. Simpson. (2012)"''Dudleya crassifolia'' (Crassulaceae), a new species from northern Baja California, Mexico" ''Madroño'' 59(4) 223–229. Although it did not receive as much media attention as the neighboring '' Dudleya hendrixii'', it has been noted that the plant has several similarities to cryptic succulents like '' Anacampseros''. Description This ''Dudleya'' is one of numerous species in the genus that form a corm out of their caudex, an underground storage organ that helps them survive. This means that plant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Corm
A corm, bulbo-tuber, or bulbotuber is a short, vertical, swollen underground plant stem that serves as a storage organ that some plants use to survive winter or other adverse conditions such as summer drought and heat (perennation). The word ''cormous'' usually means plants that grow from corms, parallel to the terms ''tuberous'' and ''bulbous'' to describe plants growing from tubers and bulbs. Structure A corm consists of one or more internodes with at least one growing point, generally with protective leaves modified into skins or tunics. The tunic of a corm forms from dead petiole sheaths—remnants of leaves produced in previous years. They act as a covering, protecting the corm from insects, digging animals, flooding, and water loss. The tunics of some species are thin, dry, and papery, at least in young plants, however, in some families, such as ''Iridaceae'', the tunic of a mature corm can be formidable protection. For example, some of the larger species of '' Wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pedicel (botany)
In botany, a pedicel is a stem that attaches a single flower to the inflorescence. Such inflorescences are described as ''pedicellate''. Description Pedicel refers to a structure connecting a single flower to its inflorescence. In the absence of a pedicel, the flowers are described as sessile. Pedicel is also applied to the stem of the infructescence. The word "pedicel" is derived from the Latin ''pediculus'', meaning "little foot". The stem or branch from the main stem of the inflorescence that holds a group of pedicels is called a peduncle. A pedicel may be associated with a bract or bracts. In cultivation In Halloween types of pumpkin or squash plants, the shape of the pedicel has received particular attention because plant breeders are trying to optimize the size and shape of the pedicel for the best "lid" for a "jack-o'-lantern". Gallery File:Asclepias amplexicaulis.jpg, Long pedicels of clasping milkweed with a single peduncle File:314 Prunus avium.jpg, Cherr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Baja California
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms '' gut flora'' or '' skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Endemic Flora Of Mexico
Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, the Cape sugarbird is found exclusively in southwestern South Africa and is therefore said to be ''endemic'' to that particular part of the world. An endemic species can be also be referred to as an ''endemism'' or in scientific literature as an ''endemite''. For example '' Cytisus aeolicus'' is an endemite of the Italian flora. '' Adzharia renschi'' was once believed to be an endemite of the Caucasus, but it was later discovered to be a non-indigenous species from South America belonging to a different genus. The extreme opposite of an endemic species is one with a cosmopolitan distribution, having a global or widespread range. A rare alternative term for a species that is endemic is "precinctive", which applies to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dudleya
''Dudleya'', commonly known as liveforevers (Spanish: ''siemprevivas'') is a genus of succulent plants in the stonecrop family, Crassulaceae, consisting of about 68 taxa in southwestern North America and Guadalupe Island. The species come in multiple divergent forms, some large and evergreen, others cryptic and deciduous, but despite their dramatic variations in appearance, most species readily hybridize. The flowers of ''Dudleya'' have parts numbered in 5, with the petals arranged in tubular, star-shaped, and bell-shaped forms, and when fruiting are filled with tiny, ovoid to crescent-shaped seeds. The genus evolved as neoendemics, from ancestors in the stonecrop genus, ''Sedum.'' The ancestors radiated southward from ''Sedum'' during the creation of the dry summer climate in the California region 5 million years ago. Early botanists classified the larger species as ''Echeveria'' and ''Cotyledon'', while the cryptic species were placed as ''Sedum''. Taxonomic efforts starte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Herbivory
A herbivore is an animal anatomically and physiologically adapted to eating plant material, for example foliage or marine algae, for the main component of its diet. As a result of their plant diet, herbivorous animals typically have mouthparts adapted to rasping or grinding. Horses and other herbivores have wide flat teeth that are adapted to grinding grass, tree bark, and other tough plant material. A large percentage of herbivores have mutualistic gut flora that help them digest plant matter, which is more difficult to digest than animal prey. This flora is made up of cellulose-digesting protozoans or bacteria. Etymology Herbivore is the anglicized form of a modern Latin coinage, ''herbivora'', cited in Charles Lyell's 1830 ''Principles of Geology''.J.A. Simpson and E.S.C. Weiner, eds. (2000) ''The Oxford English Dictionary'', vol. 8, p. 155. Richard Owen employed the anglicized term in an 1854 work on fossil teeth and skeletons. ''Herbivora'' is derived from Latin ''herba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dasytes
''Dasytes'' is a genus of beetles in the family Melyridae. ''D. plumbeus'' is a very common beetle on flowers in Germany, where it feeds on pollen. It is about 3 to 5 mm long. European species * '' D. aeneiventris'' * '' D. aequalis'' * '' D. aeratus'' * '' D. albosetosus'' * '' D. alpigradus'' * '' D. alticola'' * '' D. baudii'' * '' D. blascoi'' * '' D. borealis'' * '' D. bourgeoisi'' * '' D. brenskei'' * '' D. bulgaricus'' * '' D. buphtalmus'' * '' D. caeruleus'' * '' D. calabrus'' * '' D. canariensis'' * '' D. coerulescens'' * '' D. creticus'' * '' D. croceipes'' * '' D. dispar'' * '' D. doderoi'' * '' D. dolens'' * '' D. erratus'' * '' D. flavescens'' * '' D. fuscipes'' * '' D. fusculus'' * '' D. gonocerus'' * '' D. graeculus'' * '' D. grenieri'' * '' D. griseus'' * '' D. hickeri'' * '' D. incanus'' * '' D. inexspectatus'' * '' D. israelsoni'' * '' D. iteratus'' * '' D. korbi'' * '' D. lanzarotensis'' * '' D. laufferi'' * '' D. lombardus'' * '' D. longipennis'' * '' D. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bembicinae
The Bembicinae comprise a large subfamily of crabronid wasps that includes over 80 genera and over 1800 species which have a worldwide distribution. They excavate nests in the soil, frequently in sandy soils, and store insects of several orders, for example Diptera, Orthoptera, Hemiptera, Lepidoptera and Odonata Odonata is an order of flying insects that includes the dragonflies and damselflies. Members of the group first appeared during the Triassic, though members of their total group, Odonatoptera, first appeared in Late Carboniferous. The two com ... in the burrows. Some species are kleptoparasites of other Bembicinae. The different subgroups of Bembicinae are each quite distinctive, and rather well-defined, with clear morphological and behavioral differences between them. Bembicines were originally a part of a single large family, the Sphecidae, then for many years were treated as a separate family, and recently have been placed back into a larger family, the C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dudleya Blochmaniae
''Dudleya blochmaniae'' is a summer-deciduous succulent plant known by the common names Blochman's liveforever or Blochman's dudleya. This species of ''Dudleya'' survives part of the year with no aboveground presence, surviving as underground corm-like roots in deciduous months. It is characterized by white, Star polygon, star-shaped and spreading flowers that emerge after sufficient rainfall. It is found along the Pacific coast of the California Floristic Province, from the vicinity of San Luis Obispo County, California, San Luis Obispo in California to Punta Colonet in Baja California. Description Vegetative morphology This plant forms a basal Rosette (botany), rosette from an underground corm. The small rosette is around only 0.5 to 7 cm, and the Leaf, leaves are summer deciduous. The leaves are 1 to 6 cm long, more or less Glossary of leaf morphology, shaped, oblanceolate to club-shaped, and when removed from the plant, the point of detachment will turn red with t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dudleya Brevifolia
''Dudleya brevifolia'', is a rare succulent plant known by the common name short-leaved liveforever, short-leaved dudleya or rarely the Del Mar Hasseanthus. It is an edaphic endemic that only grows on the mesas of the most ancient marine terraces, hiding in the vicinity of ironstone concretions. The leaves are deciduous, and disappear after the inflorescence develops. The small white flowers are star-shaped with a yellow center. After flowering, any above ground trace of the plant will disappear, and it survives under the earth with a starch-rich subterranean caudex. ''Dudleya brevifolia'' is only found on coastal mesas along a small strip of coast in San Diego County, California. It was formerly a subspecies of the similar '' Dudleya blochmaniae'', and was not recognized as a distinct species because both plants grew and hybridized together. However, the habitats with the intermediate populations were razed for residential development, and with these populations destroyed, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico ''''. . making it the world's 13th-largest country by are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Germination
Germination is the process by which an organism grows from a seed or spore. The term is applied to the sprouting of a seedling from a seed of an angiosperm or gymnosperm, the growth of a sporeling from a spore, such as the spores of fungi, ferns, bacteria, and the growth of the pollen tube from the pollen grain of a seed plant. Seed plants Germination is usually the growth of a plant contained within a seed; it results in the formation of the seedling. It is also the process of reactivation of metabolic machinery of the seed resulting in the emergence of radicle and plumule. The seed of a vascular plant is a small package produced in a fruit or cone after the union of male and female reproductive cells. All fully developed seeds contain an embryo and, in most plant species some store of food reserves, wrapped in a seed coat. Some plants produce varying numbers of seeds that lack embryos; these are empty seeds which never germinate. Dormant seeds are viable seeds that do ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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