Pollination Pollination • Definition: transfer of pollen from stamen to
... • Only if tube is longer than tongue will moth have to push into flower far enough to pick up pollen • So, long spurred flowers reproduce better. Pollination syndromes • Which leads to longer moth tongues to reach all of the nectar ...
... • Only if tube is longer than tongue will moth have to push into flower far enough to pick up pollen • So, long spurred flowers reproduce better. Pollination syndromes • Which leads to longer moth tongues to reach all of the nectar ...
Janis Ruksans
... form of the species. Merits include dwarf growths, rich colouring and great variability in colour from bright yellow to lilac, including occasional reddish and even whitish toned plants. Good outside in the garden in a sunny, welldrained site, where it is tolerant but excellent in pots, too. 30. All ...
... form of the species. Merits include dwarf growths, rich colouring and great variability in colour from bright yellow to lilac, including occasional reddish and even whitish toned plants. Good outside in the garden in a sunny, welldrained site, where it is tolerant but excellent in pots, too. 30. All ...
Dracaena deremensis - Wikipedia, the free encyclopedia
... Dracaena deremensis grows as an 8 to 12 feet unbranched rosette of evergreen leaves, though some cultivars are variegated in a white to grey-green color. Dracaena deremensis is also commonly grown as an indoor houseplant and includes the popular cultivars 'Janet Craig' and 'Warneckii'. ...
... Dracaena deremensis grows as an 8 to 12 feet unbranched rosette of evergreen leaves, though some cultivars are variegated in a white to grey-green color. Dracaena deremensis is also commonly grown as an indoor houseplant and includes the popular cultivars 'Janet Craig' and 'Warneckii'. ...
The role of plant species size in invasibility: a
... (Schamp et al. 2008), where 25 individuals were sampled per species (n = 11, R2 = 0.75, P = 0.008). All individuals were sampled in late season at reproductive stage. To test whether larger species would self-thin in such a way as to allow greater invasion, we regressed the number of invading specie ...
... (Schamp et al. 2008), where 25 individuals were sampled per species (n = 11, R2 = 0.75, P = 0.008). All individuals were sampled in late season at reproductive stage. To test whether larger species would self-thin in such a way as to allow greater invasion, we regressed the number of invading specie ...
Biology 10, Term 4
... curriculum next year. Although it is an interesting topic, the grade 9s this year dealt with the subject matter in a more mature way than the 10s, which leads me to believe that there is no reason to suppose that the grade 9 students should wait to study this material when they are older. Next year ...
... curriculum next year. Although it is an interesting topic, the grade 9s this year dealt with the subject matter in a more mature way than the 10s, which leads me to believe that there is no reason to suppose that the grade 9 students should wait to study this material when they are older. Next year ...
Seaside Bird`s-foot Lotus (Lotus formosissimus)
... are made on native species for the following taxonomic groups: mammals, birds, reptiles, amphibians, fishes, arthropods, molluscs, vascular plants, mosses, and lichens. ...
... are made on native species for the following taxonomic groups: mammals, birds, reptiles, amphibians, fishes, arthropods, molluscs, vascular plants, mosses, and lichens. ...
Characterization of Linaria KNOX genes suggests a role in petal
... in abaxial to adaxial sequence. The floral apex assumes a pentagonal shape as five petal primordia are initiated, alternating with the sepal primordia (phase C; Figure 2b). The sepals grow and soon enclose the developing petals (Figure 2c). Following the initiation of the petal primordia, four stame ...
... in abaxial to adaxial sequence. The floral apex assumes a pentagonal shape as five petal primordia are initiated, alternating with the sepal primordia (phase C; Figure 2b). The sepals grow and soon enclose the developing petals (Figure 2c). Following the initiation of the petal primordia, four stame ...
Population density of North American elk
... sites. Thus, NAPP in grasslands during 1999 only was restricted to areas with herbivory by elk, but grassland exclosures were established for 2000 and 2001. Stewart et al. (2006) provide a detailed rationale for this experimental design. We placed exclosures (32 9 32 m) in mesic, logged, and xeric f ...
... sites. Thus, NAPP in grasslands during 1999 only was restricted to areas with herbivory by elk, but grassland exclosures were established for 2000 and 2001. Stewart et al. (2006) provide a detailed rationale for this experimental design. We placed exclosures (32 9 32 m) in mesic, logged, and xeric f ...
Humus-Producing Materials and the Making and Use of Compost
... to be expected that there should be considerable variation not only between peat deposits but also between different portions of the same deposit. It is said that deposits vary widely in percentage of nitrogen, and it is often claimed that those with a high percentage are much more valuable than tho ...
... to be expected that there should be considerable variation not only between peat deposits but also between different portions of the same deposit. It is said that deposits vary widely in percentage of nitrogen, and it is often claimed that those with a high percentage are much more valuable than tho ...
Great Basin Fact Sheet No. 1: Putting Resilience and Resistance
... types with warm (mesic) and dry (aridic) soils and highest in mountain big sagebrush/mountain brush types with cool (frigid) to moist (xeric) bordering on cold (cryic) soils. Resilience is often lower for soils with shallow depths or coarse textures which reduce available moisture. Low and black sag ...
... types with warm (mesic) and dry (aridic) soils and highest in mountain big sagebrush/mountain brush types with cool (frigid) to moist (xeric) bordering on cold (cryic) soils. Resilience is often lower for soils with shallow depths or coarse textures which reduce available moisture. Low and black sag ...
appalachian plant monographs
... Native in Zones 2-8 in North America, Europe, and Asia (Kartesz, 2011; Cullina, 2000), C. umbellata is a slow growing perennial with evergreen leaves that may persist for seven or eight years (Matthews, 1994; Minore, 2008). It can be found in a wide variety of soils including shady pine woods, grave ...
... Native in Zones 2-8 in North America, Europe, and Asia (Kartesz, 2011; Cullina, 2000), C. umbellata is a slow growing perennial with evergreen leaves that may persist for seven or eight years (Matthews, 1994; Minore, 2008). It can be found in a wide variety of soils including shady pine woods, grave ...
Ecological Heterogeneity in the Effects of Grazing and Fire on
... determines grassland species composition and productivity within our study region. On most soils in California, native bunchgrasses and forbs have been replaced by annual grasses and forbs from the Mediterranean region (Heady 1977; Mooney et al. 1986). This transformation may have been aided by chan ...
... determines grassland species composition and productivity within our study region. On most soils in California, native bunchgrasses and forbs have been replaced by annual grasses and forbs from the Mediterranean region (Heady 1977; Mooney et al. 1986). This transformation may have been aided by chan ...
Robert Powell Acacia cyclops - Cottesloe Coastcare Association
... more its upper foliage is killed, which may reduce its height to a metre or less on some sites. A kilometre or two further inland, where the air is less salty, red-eyed wattle grows taller and sparser, particularly in the dappled shade of the tuart forest, where it forms a small tree up to seven met ...
... more its upper foliage is killed, which may reduce its height to a metre or less on some sites. A kilometre or two further inland, where the air is less salty, red-eyed wattle grows taller and sparser, particularly in the dappled shade of the tuart forest, where it forms a small tree up to seven met ...
impact breeding bird diversity?
... habitats, such as American robins, to less common species with more stringent habitat requirements, including purple martins. Passerines 1 are easily studied during the breeding season and include many habitat specialists susceptible to changes in the landscape (M rtberg, 2001). By comparing the div ...
... habitats, such as American robins, to less common species with more stringent habitat requirements, including purple martins. Passerines 1 are easily studied during the breeding season and include many habitat specialists susceptible to changes in the landscape (M rtberg, 2001). By comparing the div ...
3.6 M - Thierry Karsenti
... 10. BIOTA: The total aggregation of organisms in a specific. This includes both plants and animals 11. GROSS PRIMARY PRODUCTIVITY (Pg) The total organic matter created (including that used for respiration) in a unit area per unit time (g m-2 d-1). 13. SUCCESSION: This is the orderly process of one p ...
... 10. BIOTA: The total aggregation of organisms in a specific. This includes both plants and animals 11. GROSS PRIMARY PRODUCTIVITY (Pg) The total organic matter created (including that used for respiration) in a unit area per unit time (g m-2 d-1). 13. SUCCESSION: This is the orderly process of one p ...
Plant Growth and Development: Seed Germination OVERVIEW
... Have you ever thought of how most plants come from only a small seed? Seeds* are essential for the survival and continued existence of many plant species. The life cycle of a plant species begins with the seed. A plant’s seed contains the genetic material to produce another plant with identical, sim ...
... Have you ever thought of how most plants come from only a small seed? Seeds* are essential for the survival and continued existence of many plant species. The life cycle of a plant species begins with the seed. A plant’s seed contains the genetic material to produce another plant with identical, sim ...
7. LUDISIA A. Richard in Bory, Dict. Class. Hist. Nat. 7: 437. 1825.
... Herbs, terrestrial or occasionally lithophytic. Rhizome elongate, creeping, several noded, fleshy; roots borne at rhizome nodes, stout. Stem erect, leafy. Leaves alternate, adaxially usually with silvery or pinkish veins and reticulation, oblong-lanceolate to elliptic; petiole-like base dilating int ...
... Herbs, terrestrial or occasionally lithophytic. Rhizome elongate, creeping, several noded, fleshy; roots borne at rhizome nodes, stout. Stem erect, leafy. Leaves alternate, adaxially usually with silvery or pinkish veins and reticulation, oblong-lanceolate to elliptic; petiole-like base dilating int ...
Edinburgh Journal of Botany, 63: 191-199.
... Recent expeditions to northern Sulawesi from the Royal Botanic Garden Edinburgh have brought to light several new species of Begonia, four of which have been brought into cultivation and are described below. This species-rich genus was previously represented by 26 species on Sulawesi (Doorenbos et a ...
... Recent expeditions to northern Sulawesi from the Royal Botanic Garden Edinburgh have brought to light several new species of Begonia, four of which have been brought into cultivation and are described below. This species-rich genus was previously represented by 26 species on Sulawesi (Doorenbos et a ...
Teacher`s Guide - Reptiles Alive
... from -65 to 30° F during the winter. The wax on the evergreens protects the leaves from freezing and killing the plant. This allows the plant to soak up sun and make food all year long (photosynthesis). Animals have found their own way to survive the winter. Many birds migrate and fly to the warmer ...
... from -65 to 30° F during the winter. The wax on the evergreens protects the leaves from freezing and killing the plant. This allows the plant to soak up sun and make food all year long (photosynthesis). Animals have found their own way to survive the winter. Many birds migrate and fly to the warmer ...
Cnidoscolus texanus (M
... herb, spinescent of horrific stinging hairs, with massive root, not rosetted, several-stemmed at base, 30−115 cm tall; monoecious; shoots with only cauline leaves, extremely painful to touch, having long, straight stinging hairs with bulbous white bases (pustulate) with white bases elongate to the a ...
... herb, spinescent of horrific stinging hairs, with massive root, not rosetted, several-stemmed at base, 30−115 cm tall; monoecious; shoots with only cauline leaves, extremely painful to touch, having long, straight stinging hairs with bulbous white bases (pustulate) with white bases elongate to the a ...
an illustrated summary of genetic traits in tetraploid and diploid alfalfa
... Barnes and Hovin (7) studied a mutant with pale-green stems and leaves (fig. 7). Chemical analyses of mutant plants indicated they had an increased ratio of chlorophyll a to chlorophyll b and were about 70-percent deficient in total chlorophyll. Seedling viability appeared normal when classified at ...
... Barnes and Hovin (7) studied a mutant with pale-green stems and leaves (fig. 7). Chemical analyses of mutant plants indicated they had an increased ratio of chlorophyll a to chlorophyll b and were about 70-percent deficient in total chlorophyll. Seedling viability appeared normal when classified at ...
Full Article - Pertanika Journal
... production as cooking ingredients, this crop is gaining recognition as an ornamental and landscaping plant in urban areas. In fact, when left to bloom, it is one of the most beautiful and striking inflorescences of tropical flowering plants, and brightens up any garden. The extravagant and showy inf ...
... production as cooking ingredients, this crop is gaining recognition as an ornamental and landscaping plant in urban areas. In fact, when left to bloom, it is one of the most beautiful and striking inflorescences of tropical flowering plants, and brightens up any garden. The extravagant and showy inf ...
Restoring Native Forest Understory: The Influence of Ferns and
... for wide spacing of experimental plantings. In addition, in some locations, we have observed disproportionate regeneration of understory seedlings within 10–50 cm of this fern than at other locations in the forest. 2.2.2. Outplanting and Direct Seeding Species We used six understory species for outp ...
... for wide spacing of experimental plantings. In addition, in some locations, we have observed disproportionate regeneration of understory seedlings within 10–50 cm of this fern than at other locations in the forest. 2.2.2. Outplanting and Direct Seeding Species We used six understory species for outp ...
Invasional meltdown 6 years later: important
... or could be harmed, but insignificantly, while the recipient of the aid is greatly helped, so the net effect is increased invasion. Stronger would be mutual facilitation, in which each species aids the other. This is still a population process and would still not, by itself, constitute meltdown. Mel ...
... or could be harmed, but insignificantly, while the recipient of the aid is greatly helped, so the net effect is increased invasion. Stronger would be mutual facilitation, in which each species aids the other. This is still a population process and would still not, by itself, constitute meltdown. Mel ...
Perovskia atriplicifolia
Perovskia atriplicifolia (/pəˈrɒvskiə ætrɪplɪsɪˈfoʊliə/), commonly called Russian sage, is a flowering herbaceous perennial plant and subshrub. Although not a member of Salvia, the genus of other plants commonly called sage, it is closely related to them. It has an upright habit, typically reaching 0.5–1.2 m (1 ft 8 in–3 ft 11 in) tall, with square stems and gray-green leaves that yield a distinctive odor when crushed, but it is best known for its flowers. Its flowering season extends from mid-summer to as late as October, with blue to violet blossoms arranged into showy, branched panicles.Native to the steppes and hills of southwestern and central Asia, it was introduced to cultivation by Vasily Perovsky in the 19th century. Successful over a wide range of climate and soil conditions, it has since become popular and widely planted. Several cultivars have been developed, differing primarily in leaf shape and overall height; 'Blue Spire' is the most common. This variation has been widely used in gardens and landscaping. P. atriplicifolia was the Perennial Plant Association's 1995 Plant of the Year, and the 'Blue Spire' cultivar received the Award of Garden Merit from the Royal Horticultural Society.The species has a long history of use in traditional medicine in its native range, where it is employed as a treatment for a variety of ailments. This has led to the investigation of its phytochemistry. Its flowers can be eaten in salads or crushed for dyemaking, and the plant has been considered for potential use in the phytoremediation of contaminated soil.