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Hooveria (plant)
''Hooveria'' is a genus of perennial bulbous plants in the Agavaceae family native to California and northwest Baja California. They are among a number of taxa referred to as amole. They are characterized by diurnal flowering and were formerly placed in the genus ''Chlorogalum'', which consists of vespertine flowering species. They are named in honor of Robert F. Hoover,Taylor, D.W. and D.J. Keil. 2018Hooveria, a new genus liberated from Chlorogalum (Agavaceae subf. Chlorogaloideae).Phytoneuron 2018-67: 1–6. Published 1 October 2018ISSN 2153-733X/ref> a field botanist from California who was responsible for founding the botanical garden and herbarium at California State Polytechnic College. Description This genus grows as herbaceous perennials from bulbs. The bulb is ovoid to more or less elongate, with a white to brown outer coat. The basal leaves are shaped linear, and have wavy margins. The inflorescence is a panicle, with linear-shaped bracts. There are one to several ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hooveria Parviflora
''Hooveria parviflora'' is a species of perennial herb in the Agave/Yucca subfamily known by the common name smallflower soap plant. It is a monocot, native to coastal southern California and Baja California, where it is a member of the coastal sage scrub flora. It resembles a smaller version of ''Chlorogalum pomeridianum'', with wavy leaves and white flowers that open during the day. Description ''Hooveria parviflora'' is a perennial wildflower, growing from a bulb wide. The bulb is covered in a dark brown, membranous coat. The leaves emerge from the top of the bulb, and are long and narrow, with wavy margins, wide. The inflorescence is tall, with ascending to erect branches. There are several flowers or buds per node. The pedicels, which suspend the flowers, are long. On the flower, the perianth parts spread from above the base, and are colored a white to pink, with a darker midvein. The perianth is in length, and the stamens are long. Atop the stamens are yellow ant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ovary (botany)
In the flowering plants, an ovary is a part of the female reproductive organ of the flower or gynoecium. Specifically, it is the part of the pistil which holds the ovule(s) and is located above or below or at the point of connection with the base of the petals and sepals. The pistil may be made up of one carpel or of several fused carpels (e.g. dicarpel or tricarpel), and therefore the ovary can contain part of one carpel or parts of several fused carpels. Above the ovary is the style and the stigma, which is where the pollen lands and germinates to grow down through the style to the ovary, and, for each individual pollen grain, to fertilize one individual ovule. Some wind pollinated flowers have much reduced and modified ovaries. Fruits A fruit is the mature, ripened ovary of a flower following double fertilization in an angiosperm. Because gymnosperms do not have an ovary but reproduce through double fertilization of unprotected ovules, they produce naked seeds that do not ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hooveria Purpurea
''Hooveria purpurea'' is a species of flowering plant related to the agaves known by the common name purple amole. This species of soap plant is endemic to California, where it grows in the Santa Lucia Range, in the Central Coast region. There are two varieties of this plant, and both are believed to be quite rare. It is a federally listed threatened species. Description ''Hooveria purpurea'' is a perennial plant growing from a bulb about 3 centimeters in diameter. The narrow, wavy leaves grow at the base of the stem. The leaves are bright green and have thick midribs. There are usually one to eight leaves, but plants with up to fourteen have been noted.USFWS''Chlorogalum purpureum'' Five Year Review.September 2008. The stem bears flowers at widely spaced nodes. Each flower has curled tepals each less than a centimeter long in shades of blue or purple. The flowers have long stamens with yellow anthers around a protruding style. The two varieties of the species can be told apar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Camassia
''Camassia'' is a genus of plants in the asparagus family native to North America. Common names include camas, quamash, Indian hyacinth, camash, and wild hyacinth. It grows in the wild in great numbers in moist meadows. They are perennial plants with basal linear leaves measuring in length, which emerge early in the spring. They grow to a height of , with a multi-flowered stem rising above the main plant in summer. The six-petaled flowers vary in color from pale lilac or white to deep purple or blue-violet. Camas can appear to color entire meadows when in flower. Taxonomy and species Historically, the genus was placed in the lily family (Liliaceae), when this was very broadly defined to include most lilioid monocots., in When the Liliaceae was split, in some treatments ''Camassia'' was placed in a family called Hyacinthaceae (now the subfamily Scilloideae). DNA and biochemical studies have led the Angiosperm Phylogeny Group to reassign ''Camassia'' to the family Asparag ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hastingsia
''Hastingsia'' is a small genus of flowering plants in the family Asparagaceae, subfamily Agavoideae, known generally as rushlilies. These are small perennial herbs endemic to serpentine soils of the Siskiyou-Klamath region in northern California and SW Oregon in the United States. They reach heights between 25 and 90 centimeters and have long linear leaves and racemes of small white flowers. Species: # '' Hastingsia alba'' (Durand) S.Watson - white rushlily - California and Oregon #'' Hastingsia atropurpurea'' Becking - Oregon # '' Hastingsia bracteosa'' S.Watson - largeflower rushlily - Oregon # '' Hastingsia serpentinicola'' Becking - Klamath rushlily - California and Oregon Name The genus is named after Serranus Clinton Hastings, a 19th century California businessman and judge. Hastings created and endowed the Hastings College of Law. In 2020, a commission of Hastings College concluded that in the 1850s Serranus Hastings facilitated the genocide of the Yuki people in Mend ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monophyly
In cladistics for a group of organisms, monophyly is the condition of being a clade—that is, a group of taxa composed only of a common ancestor (or more precisely an ancestral population) and all of its lineal descendants. Monophyletic groups are typically characterised by shared derived characteristics ( synapomorphies), which distinguish organisms in the clade from other organisms. An equivalent term is holophyly. The word "mono-phyly" means "one-tribe" in Greek. Monophyly is contrasted with paraphyly and polyphyly as shown in the second diagram. A ''paraphyletic group'' consists of all of the descendants of a common ancestor minus one or more monophyletic groups. A '' polyphyletic group'' is characterized by convergent features or habits of scientific interest (for example, night-active primates, fruit trees, aquatic insects). The features by which a polyphyletic group is differentiated from others are not inherited from a common ancestor. These definitions have taken ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phylogenetics
In biology, phylogenetics (; from Greek language, Greek wikt:φυλή, φυλή/wikt:φῦλον, φῦλον [] "tribe, clan, race", and wikt:γενετικός, γενετικός [] "origin, source, birth") is the study of the evolutionary history and relationships among or within groups of organisms. These relationships are determined by Computational phylogenetics, phylogenetic inference methods that focus on observed heritable traits, such as DNA sequences, Protein, protein Amino acid, amino acid sequences, or Morphology (biology), morphology. The result of such an analysis is a phylogenetic tree—a diagram containing a hypothesis of relationships that reflects the evolutionary history of a group of organisms. The tips of a phylogenetic tree can be living taxa or fossils, and represent the "end" or the present time in an evolutionary lineage. A phylogenetic diagram can be rooted or unrooted. A rooted tree diagram indicates the hypothetical common ancestor of the tree. An un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyploidy
Polyploidy is a condition in which the cells of an organism have more than one pair of ( homologous) chromosomes. Most species whose cells have nuclei ( eukaryotes) are diploid, meaning they have two sets of chromosomes, where each set contains one or more chromosomes and comes from each of two parents, resulting in pairs of homologous chromosomes between sets. However, some organisms are polyploid. Polyploidy is especially common in plants. Most eukaryotes have diploid somatic cells, but produce haploid gametes (eggs and sperm) by meiosis. A monoploid has only one set of chromosomes, and the term is usually only applied to cells or organisms that are normally diploid. Males of bees and other Hymenoptera, for example, are monoploid. Unlike animals, plants and multicellular algae have life cycles with two alternating multicellular generations. The gametophyte generation is haploid, and produces gametes by mitosis, the sporophyte generation is diploid and produces spores by mei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karyotype
A karyotype is the general appearance of the complete set of metaphase chromosomes in the cells of a species or in an individual organism, mainly including their sizes, numbers, and shapes. Karyotyping is the process by which a karyotype is discerned by determining the chromosome complement of an individual, including the number of chromosomes and any abnormalities. A karyogram or idiogram is a graphical depiction of a karyotype, wherein chromosomes are organized in pairs, ordered by size and position of centromere for chromosomes of the same size. Karyotyping generally combines light microscopy and photography, and results in a photomicrographic (or simply micrographic) karyogram. In contrast, a schematic karyogram is a designed graphic representation of a karyotype. In schematic karyograms, just one of the sister chromatids of each chromosome is generally shown for brevity, and in reality they are generally so close together that they look as one on photomicrographs as well ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Madroño (journal)
Madroño may refer to: Places *El Madroño, Spanish municipality of Seville *Navas del Madroño, Spanish municipality of Cáceres, Extremadura Botany *''Garcinia madruno'', a tropical species of fruit tree in the family Clusiaceae *Madroño, common name of some North American tree species in the genus ''Arbutus'', family Ericaceae *Madroño (journal), scientific journal of the California Botanical Society {{disambiguation, plant ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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