|
Justicia Austrocapensis
''Justicia austrocapensis'' is a species of perennial herb in the Acanthus family commonly known as the Cape tube-tongue or chuparrosa. ''J. austrocapensis'' is characterized by solitary, pink, two-lipped tubular flowers up to long that emerge from the leaf axils. It is one of two '' Justicia'' species endemic to the Cape region of Baja California Sur, the other being the larger, shrubby, red-flowered '' Justicia purpusii''. It is most similar to other species formerly placed in ''Siphonoglossa'', such as '' Justicia sessilis'' of the West Indies and South America. Description ''Justicia austrocapensis'' is a perennial herb that grows to tall. The young stems are square-shaped and may be furrowed. The foliage, stems, flowers and fruits are covered in pubescent, non-glandular hairs. The leaves are subsessile to petiolate, with the petioles up to long, eventually reducing to stubs along the stem once the leaves have fallen. The leaves are ovate and entire, measuring long by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas Franklin Daniel
Thomas Franklin Daniel (born September 14, 1954) is an American botanist, and teacher. He is a specialist of the botanical family Acanthaceae. In 1975 he obtained his undergraduate from Duke University. In 1980, he obtained his doctorate at the University of Michigan. In 1981, he was assistant professor. Between 1981 and 1985 he was an assistant curator of the Arizona State University Herbarium. Since 1986, Daniel belongs to the California Academy of Sciences where he is Curator of Botany, Emeritus. In 1987 he was a conservation assistant. From 1988 to 1991: assistant curator. In 2009, he was president of the Botany Department, a position he also held between 1988 and 1990 and between 1994 and 1996. Since 1998 he has been a research professor at San Francisco State University. He is also a researcher at the Arizona-Sonora Desert Museum. Selected publications Books * * * 1999. '' Flora of the Tehuacán-Cuicatlán Valley: fasciculo 23. Acanthaceae Juss. '' Ed. UNAM. 102 pp.o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed on the axis of a plant. The modifications can involve the length and the nature of the internodes and the phyllotaxis, as well as variations in the proportions, compressions, swellings, adnations, connations and reduction of main and secondary axes. One can also define an inflorescence as the reproductive portion of a plant that bears a cluster of flowers in a specific pattern. The stem holding the whole inflorescence is called a peduncle. The major axis (incorrectly referred to as the main stem) above the peduncle bearing the flowers or secondary branches is called the rachis. The stalk of each flower in the inflorescence is called a pedicel. A flower that is not part of an inflorescence is called a solitary flower and its stalk is al ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural History Of The Peninsular Ranges
Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena. The word ''nature'' is borrowed from the Old French ''nature'' and is derived from the Latin word ''natura'', or "essential qualities, innate disposition", and in ancient times, literally meant "birth". In ancient philosophy, ''natura'' is mostly used as the Latin translation of the Greek word ''physis'' (φύσις), which originally related to the intrinsic characteristics of plants, animals, and other features of the world to develop of their own accord. The concept of nature as a whole, the physical universe The universe is all of space and time and their contents, including planets, stars, galaxies, and all other forms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Natural History Of Baja California Sur
Nature, in the broadest sense, is the physical world or universe. "Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not the only, part of science. Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena. The word ''nature'' is borrowed from the Old French ''nature'' and is derived from the Latin word ''natura'', or "essential qualities, innate disposition", and in ancient times, literally meant "birth". In ancient philosophy, ''natura'' is mostly used as the Latin translation of the Greek word ''physis'' (φύσις), which originally related to the intrinsic characteristics of plants, animals, and other features of the world to develop of their own accord. The concept of nature as a whole, the physical universe, is one of several expansions of the original notion; it began with certain core applications of the word φύσις by pre-Soc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flora Of Baja California Sur
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 Phyt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Biodiversity Heritage Library
The Biodiversity Heritage Library (BHL) is the world’s largest open access digital library for biodiversity literature and archives. BHL operates as worldwide consortiumof natural history, botanical, research, and national libraries working together to address this challenge by digitizing the natural history literature held in their collections and making it freely available for open access as part of a global “biodiversity community.” The BHL consortium works with the international taxonomic community, publishers, bioinformaticians, and information technology professionals to develotools and servicesto facilitate greater access, interoperability, and reuse of content and data. BHL provides a range of services, data exports, and APIs to allow users to download content, harvest source data files, and reuse materials for research purposes. Through taxonomic intelligence tools developed bGlobal Names Architecture BHL indexes the taxonomic names throughout the collection, allowing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Species Description
A species description is a formal description of a newly discovered species, usually in the form of a scientific paper. Its purpose is to give a clear description of a new species of organism and explain how it differs from species that have been described previously or are related. In order for species to be validly described, they need to follow guidelines established over time. Zoological naming requires adherence to the ICZN code, plants, the ICN, viruses ICTV, and so on. The species description often contains photographs or other illustrations of type material along with a note on where they are deposited. The publication in which the species is described gives the new species a formal scientific name. Some 1.9 million species have been identified and described, out of some 8.7 million that may actually exist. Millions more have become extinct throughout the existence of life on Earth. Naming process A name of a new species becomes valid (available in zo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra De La Laguna Pine–oak Forests
The Sierra de la Laguna pine–oak forests are a subtropical coniferous forest ecoregion, found in the Sierra de la Laguna mountain range at the southern tip of the Baja California Peninsula, Mexico. It is found within Los Cabos Municipality and eastern La Paz Municipality of southern Baja California Sur state. Setting The ecoregion encompasses an area of . The pine–oak forests are found above in elevation, and are surrounded at lower elevations by the Sierra de la Laguna dry forests. The pine–oak forests have a unique and diverse flora and fauna, including 694 plant species, of which approximately 85 are endemic. Climate The higher elevation gives the ecoregion a subtropical to temperate climate, in contrast to the dry tropical climate of the lowlands. Rainfall is higher than the lower-elevation dry forests and deserts of the peninsula, averaging 760 mm annually. Rain falls mostly in the summer, with occasional winter rains. Flora The composition of the pine–oa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra De La Laguna Dry Forests
The Sierra de la Laguna dry forests are a subtropical dry forest ecoregion of the southern Baja California Peninsula in Mexico. Geography The dry forests cover the lower elevations of the Sierra de la Laguna, from elevation. They are surrounded at lower elevations by the San Lucan xeric scrub, which lies between sea level and elevation. Above 800 meters elevation, the dry forests transition to the subhumid and temperate Sierra de la Laguna pine-oak forests. Climate The ecoregion has a warm and dry subtropical climate. Annual precipitation is generally less than 500 mm. The highest-rainfall months are late summer, from August to October with peak annual precipitation in September. Flora The characteristic vegetation is dry forest, composed of low trees and shrubs with an herbaceous understory. Many of the trees are deciduous, dropping their leaves during the dry season. The predominant tree species of the dry forests are the mauto (''Lysiloma divaricatum''), palo blanco ('' L. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
San Lucan Xeric Scrub
The San Lucan xeric scrub is a xeric shrubland ecoregion of the southernmost Baja California Peninsula, in Los Cabos Municipality and eastern La Paz Municipality of southern Baja California Sur state, Mexico. Geography The San Lucan xeric scrub covers an area of . It extends to the sea on the west, south, and east, and up to elevation in the Sierra de la Laguna, where the Sierra de la Laguna dry forests ecoregion begins. Above that to the range's summits is the Sierra de la Laguna pine-oak forests ecoregion. The ecoregion includes Jacques Cousteau Island (aka Cerralvo Island), Espíritu Santo Island, and Partida Island in the Gulf of California. It is bounded on the north by the Gulf of California xeric scrub ecoregion. The cities of Cabo San Lucas and San José del Cabo are on the southern coast. The city of La Paz lies at the northern edge of the ecoregion. Climate The ecoregion has a tropical desert climate (Köppen: ''BWh''). Annual rainfall averages about 400mm. The A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sierra De La Laguna
The Sierra de la Laguna is a mountain range at the southern end of the Baja California Peninsula in Mexico, and is the southernmost range of the Peninsular Ranges System. It is located in La Paz Municipality and Los Cabos Municipality of southern Baja California Sur state. The "Sierra de la Laguna High Point", at in elevation, is the highest point of the range and in Baja California Sur state. Ecology The southern tip of the Baja California Peninsula, including the Sierra de la Laguna, was formerly an island in prehistoric times. It has a distinctive flora and fauna, with many affinities to Southwestern Mexico. The Sierra is home to many endemic species and subspecies. The dry San Lucan xeric scrub ecoregion extends from the sea level at the coast to in elevation. The Sierra de la Laguna dry forests ecoregion occupy lower portion of the range, from in elevation. Above in elevation, the dry forests transition to the Sierra de la Laguna pine-oak forests ecoregion. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petal
Petals are modified Leaf, leaves that surround the reproductive parts of flowers. They are often advertising coloration, brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''corolla''. Petals are usually accompanied by another set of modified leaves called sepals, that collectively form the ''calyx'' and lie just beneath the corolla. The calyx and the corolla together make up the perianth, the non-reproductive portion of a flower. When the petals and sepals of a flower are difficult to distinguish, they are collectively called tepals. Examples of plants in which the term ''tepal'' is appropriate include Genus, genera such as ''Aloe'' and ''Tulipa''. Conversely, genera such as ''Rose, Rosa'' and ''Phaseolus'' have well-distinguished sepals and petals. When the undifferentiated tepals resemble petals, they are referred to as "petaloid", as in petaloid monocots, orders of monocots with brightly colored tepals. Sinc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Natural History Of The Peninsular Ranges")
