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Arenaria Livermorensis
''Arenaria livermorensis'', common name Livermore sandwort, is a plant species endemic to the Davis Mountains in Jeff Davis County, Texas, Jeff Davis County in western Texas. It grows in cracks in cliff faces at elevations of 2100–2500 m. ''Arenaria livermorensis'' is a perennial herb growing close to the ground and forming a mat, rather resembling moss. Stems can attain a length of 4 cm. The leaves are Needle (botany), needle-like, narrow and rigid, up to 6 mm long, hairless but with peg-like Cilia (botany), cilia along the margins, green and shiny. The flowers are solitary in the axils of the leaves, with green sepals and no petals.Correll, Donovan Stewart. 1966. Brittonia 18(4): 308. References {{Taxonbar, from=Q15561390 Arenaria (plant), livermorensis Flora of Texas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Donovan Stewart Correll
Donovan "Don" Stewart Correll (13 April 1908, Wilson, North Carolina – 28 March 1983, Miami, Florida) was an American botanist, plant collector, and plant taxonomist, specializing in orchids. Biography Correll grew up in North Carolina. For two years, before entering college, he took voice lessons and sang solos in church and on radio. He also spent a year doing various jobs in Florida. At Duke University, he graduated with A.B. in 1934, A.M. in 1936, and Ph.D. in 1939. Some of his doctoral work was done at Harvard University, where he worked under the orchidologist Oakes Ames, who introduced him to economic botany. At Harvard, Correll was financially assisted by the Anna C. Ames Memorial Scholarship. In 1937 he married Helen Elizabeth Butts (1907–2000). She received her Ph.D. in zoology from Duke University in 1934. She worked extensively on botany with her husband and became an expert on grasses and sedges. He was from 1939 to 1943 a research associate at the Harvard Univ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Davis Mountains
The Davis Mountains, originally known as Limpia Mountains, are a range of mountains in West Texas, located near Fort Davis, after which they are named. The fort was named for then United States Secretary of War and later Confederate President Jefferson Davis. They are a popular site for camping and hiking and the region includes Fort Davis National Historic Site and Davis Mountains State Park. The historical and architectural value of the fort, alongside the rugged natural environment of the park are a significant destination for tourism in Texas. Most of the land in the Davis Mountains is under private ownership as ranch land, but The Nature Conservancy owns or has conservation easements on more than . Description Rather than being a single coherent range, the Davis Mountains are an irregular jumble of isolated peaks and ridges separated by flatter areas. The mountains occupy a rough square about on each side. The mountains are of volcanic origin composed of strata assoc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeff Davis County, Texas
Jeff Davis County is a county in the U.S. state of Texas. As of the 2020 census, its population was 1,996. Its county seat is Fort Davis. The county is named for Jefferson Davis, who served as the 23rd United States Secretary of War in the 1850s, and as President of the Confederate States of America. Jeff Davis County is recognizable for its unique shape; it is a pentagon that has no north–south nor east–west boundaries, save for a six-mile line serving as its southern boundary. It is the only county in the United States that touches a foreign country (Mexico) at a single point. Jeff Davis is one of the nine counties that compose the Trans-Pecos region of West Texas. The county contains the Texas Davis Mountains American Viticultural Area. About are "under vine". The McDonald Observatory, owned by the University of Texas at Austin, is located near Fort Davis. History Native Americans Prehistoric peoples camped at Phantom Lake Spring, in present-day northeastern Jef ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Texas
Texas (, ; Spanish language, Spanish: ''Texas'', ''Tejas'') is a state in the South Central United States, South Central region of the United States. At 268,596 square miles (695,662 km2), and with more than 29.1 million residents in 2020, it is the second-largest U.S. state by both List of U.S. states and territories by area, area (after Alaska) and List of U.S. states and territories by population, population (after California). Texas shares borders with the states of Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the west, and the Mexico, Mexican States of Mexico, states of Chihuahua (state), Chihuahua, Coahuila, Nuevo León, and Tamaulipas to the south and southwest; and has a coastline with the Gulf of Mexico to the southeast. Houston is the List of cities in Texas by population, most populous city in Texas and the List of United States cities by population, fourth-largest in the U.S., while San Antonio is the second most pop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moss
Mosses are small, non-vascular flowerless plants in the taxonomic division Bryophyta (, ) '' sensu stricto''. Bryophyta ('' sensu lato'', Schimp. 1879) may also refer to the parent group bryophytes, which comprise liverworts, mosses, and hornworts. Mosses typically form dense green clumps or mats, often in damp or shady locations. The individual plants are usually composed of simple leaves that are generally only one cell thick, attached to a stem that may be branched or unbranched and has only a limited role in conducting water and nutrients. Although some species have conducting tissues, these are generally poorly developed and structurally different from similar tissue found in vascular plants. Mosses do not have seeds and after fertilisation develop sporophytes with unbranched stalks topped with single capsules containing spores. They are typically tall, though some species are much larger. ''Dawsonia'', the tallest moss in the world, can grow to in height. Ther ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Needle (botany)
Conifers are a group of cone-bearing seed plants, a subset of gymnosperms. Scientifically, they make up the division Pinophyta (), also known as Coniferophyta () or Coniferae. The division contains a single extant class, Pinopsida. All extant conifers are perennial woody plants with secondary growth. The great majority are trees, though a few are shrubs. Examples include cedars, Douglas-firs, cypresses, firs, junipers, kauri, larches, pines, hemlocks, redwoods, spruces, and yews.Campbell, Reece, "Phylum Coniferophyta". Biology. 7th. 2005. Print. P. 595 As of 1998, the division Pinophyta was estimated to contain eight families, 68 genera, and 629 living species. Although the total number of species is relatively small, conifers are ecologically important. They are the dominant plants over large areas of land, most notably the taiga of the Northern Hemisphere, but also in similar cool climates in mountains further south. Boreal conifers have many wintertime adaptations. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cilia (botany)
This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary of leaf morphology. For other related terms, see Glossary of phytopathology, Glossary of lichen terms, and List of Latin and Greek words commonly used in systematic names. A B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Axils
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sepals
A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined by Noël Martin Joseph de Necker in 1790, and derived . Collectively the sepals are called the calyx (plural calyces), the outermost whorl of parts that form a flower. The word ''calyx'' was adopted from the Latin ,Jackson, Benjamin, Daydon; A Glossary of Botanic Terms with their Derivation and Accent; Published by Gerald Duckworth & Co. London, 4th ed 1928 not to be confused with 'cup, goblet'. ''Calyx'' is derived from Greek 'bud, calyx, husk, wrapping' ( Sanskrit 'bud'), while is derived from Greek 'cup, goblet', and the words have been used interchangeably in botanical Latin. After flowering, most plants have no more use for the calyx which withers or becomes vestigial. Some plants retain a thorny calyx, either dried or live, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Petals
Petals are modified leaves that surround the reproductive parts of flowers. They are often 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 genera such as '' Aloe'' and '' Tulipa''. Conversely, genera such as ''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. Since they include Liliales, an alternati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arenaria (plant)
''Arenaria'' is a genus of flowering plants, within the family Caryophyllaceae. Species of this genus are among those plants commonly known as " sandworts". Several species formerly classified within ''Arenaria'' are now classed in the genera ''Spergularia'', '' Eremogone'' and ''Minuartia''. Species Species accepted by the Plants of the World Online as of September 2021: *'' Arenaria acaulis'' *''Arenaria achalensis'' *'' Arenaria aggregata'' *'' Arenaria alfacarensis'' *'' Arenaria algarbiensis'' *'' Arenaria alpamarcae'' *'' Arenaria altorum'' *''Arenaria andina'' *'' Arenaria angustifolia'' *'' Arenaria angustifolioides'' *'' Arenaria antitaurica'' *'' Arenaria aphanantha'' *'' Arenaria arcuatociliata'' *'' Arenaria armerina'' *'' Arenaria aucheriana'' *'' Arenaria balansae'' *'' Arenaria balearica'' *'' Arenaria benthamii'' *'' Arenaria bertolonii'' *'' Arenaria biflora'' *'' Arenaria bisulca'' *'' Arenaria boliviana'' *'' Arenaria bourgaei'' *''Aren ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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