Article 21 Hakea sp - Botanical Society of South Africa
... One of the major threats to our mountain fynbos is posed by Hakea species. Three species of Hakea were introduced into South Africa from Australia in the 1830’s and by 1900 they were well established in the Mountain Fynbos area of the Cape coastal region. Since then it has spread with a vengeance th ...
... One of the major threats to our mountain fynbos is posed by Hakea species. Three species of Hakea were introduced into South Africa from Australia in the 1830’s and by 1900 they were well established in the Mountain Fynbos area of the Cape coastal region. Since then it has spread with a vengeance th ...
Objectives A. Flowers
... cells form in the ovary portion of flowers. Though many plants are self-fertile (i.e., a sperm cell and an egg cell from the same plant can successfully unite), cross-pollination (union of gametes from different plants) is usually more advantageous for maintaining genetic diversity. Aquatic plants, ...
... cells form in the ovary portion of flowers. Though many plants are self-fertile (i.e., a sperm cell and an egg cell from the same plant can successfully unite), cross-pollination (union of gametes from different plants) is usually more advantageous for maintaining genetic diversity. Aquatic plants, ...
PHENOLOGICAL PATTERNS OF TERRESTRIAL PLANTS By
... (97, 255, 282). Other factors that stimulate germination do not affect the seedling directly but are correlated with factors that do. For example, some desert seeds germinate in response to reduced soil salinity, which occurs only after heavy rains that ensure establishment. Seeds will not germinate ...
... (97, 255, 282). Other factors that stimulate germination do not affect the seedling directly but are correlated with factors that do. For example, some desert seeds germinate in response to reduced soil salinity, which occurs only after heavy rains that ensure establishment. Seeds will not germinate ...
TAXON:Johannesteijsmannia altifrons SCORE:
... are up to 3 m long and 1 m wide. Highly prized for thatching roofs and walls (which last 3-4 years) the leaves are cut and sold for this purpose in Peninsular Malaysia. Providing 2-3 leaves are left on each plant, the practice may be sustainable (Kiew, 1991). However, almost nothing is known about t ...
... are up to 3 m long and 1 m wide. Highly prized for thatching roofs and walls (which last 3-4 years) the leaves are cut and sold for this purpose in Peninsular Malaysia. Providing 2-3 leaves are left on each plant, the practice may be sustainable (Kiew, 1991). However, almost nothing is known about t ...
Section 1 What Is a Plant?
... plant that doesn’t have specialized tissues to move water and nutrients through the plant. • Vascular Plants A plant that has tissues to deliver water and nutrients from one part of the plant to another is called a vascular plants. ...
... plant that doesn’t have specialized tissues to move water and nutrients through the plant. • Vascular Plants A plant that has tissues to deliver water and nutrients from one part of the plant to another is called a vascular plants. ...
ICEERS Notes about Iboga Cultivation
... or a couple nights at 4 ºC, will most likely kill the plants - although sometimes the roots survive and reshoot when temperatures raise. If the environment is humid enough, iboga is well tolerant to some direct sunlight, although new leaves will be smaller. Shaded spots, or areas that often have clo ...
... or a couple nights at 4 ºC, will most likely kill the plants - although sometimes the roots survive and reshoot when temperatures raise. If the environment is humid enough, iboga is well tolerant to some direct sunlight, although new leaves will be smaller. Shaded spots, or areas that often have clo ...
Morphology and Dispersal of One- and Two
... rainstorm dispersed most of the painted diaspores on five plants. The marked diaspores were recovered the following day in order to minimize their exposure to seed predators. Secondary as well as primary dispersal was expected to have occurred because diaspores seem to be blown about until they lodg ...
... rainstorm dispersed most of the painted diaspores on five plants. The marked diaspores were recovered the following day in order to minimize their exposure to seed predators. Secondary as well as primary dispersal was expected to have occurred because diaspores seem to be blown about until they lodg ...
Environmental Weeds of the Eastern Hills Region
... Seeds germinate in autumn in response to rains and plants grow over late autumn-winter, then flower, set seed and die off in late spring or early summer. ...
... Seeds germinate in autumn in response to rains and plants grow over late autumn-winter, then flower, set seed and die off in late spring or early summer. ...
Ornamental Grasses for New Mexico
... displayed in delicate, reddish, pyramidal seed heads at the end of stems. Planting and care: Redtop is a cool-season grass, preferring full sun and moist soils in mountain regions. Plants do not withstand hot, dry weather. Plants can be gathered in the mountains and along ditch banks in the cooler r ...
... displayed in delicate, reddish, pyramidal seed heads at the end of stems. Planting and care: Redtop is a cool-season grass, preferring full sun and moist soils in mountain regions. Plants do not withstand hot, dry weather. Plants can be gathered in the mountains and along ditch banks in the cooler r ...
document
... Seed Dormancy: An Adaptation for Tough Times • Seed dormancy increases the chances that germination will occur at a time and place most advantageous to the seedling • The breaking of seed dormancy often requires environmental cues, such as temperature or lighting changes ...
... Seed Dormancy: An Adaptation for Tough Times • Seed dormancy increases the chances that germination will occur at a time and place most advantageous to the seedling • The breaking of seed dormancy often requires environmental cues, such as temperature or lighting changes ...
Angiosperm Reproduction
... Seed Dormancy: An Adaptation for Tough Times • Seed dormancy increases the chances that germination will occur at a time and place most advantageous to the seedling • The breaking of seed dormancy often requires environmental cues, such as temperature or lighting changes ...
... Seed Dormancy: An Adaptation for Tough Times • Seed dormancy increases the chances that germination will occur at a time and place most advantageous to the seedling • The breaking of seed dormancy often requires environmental cues, such as temperature or lighting changes ...
S21:Reproduction in flowering plants
... in which one or more ovules are found (Figure S21.1). A compound ovary is formed by the fusion of the bases of two or more carpels. It may contain one united cavity or several cavities corresponding to the original separate carpels. (The wallflower has a compound ovary which contains many ovules insi ...
... in which one or more ovules are found (Figure S21.1). A compound ovary is formed by the fusion of the bases of two or more carpels. It may contain one united cavity or several cavities corresponding to the original separate carpels. (The wallflower has a compound ovary which contains many ovules insi ...
Greater bilby - WWF
... greater bilby’s diet appears to rely heavily on the incidence of fire to regenerate. Large uncontrolled fires may eventually reduce the type and abundance of food plants available to the bilby. Drought & climate change The greater bilby is only partly adapted to arid environments and thus could be a ...
... greater bilby’s diet appears to rely heavily on the incidence of fire to regenerate. Large uncontrolled fires may eventually reduce the type and abundance of food plants available to the bilby. Drought & climate change The greater bilby is only partly adapted to arid environments and thus could be a ...
Lab 8
... Platanaceae—Sycamore / Plane Tree family (Greek Platanus, broad leaf). 1 genus (Platanus) / 7 species. Observe a vegetative and reproductive branch of Platanus. Note the distinctive encircling stipules (leaving an encircling stipule scar on the twigs), infrapetiolar buds, and palmately divided leave ...
... Platanaceae—Sycamore / Plane Tree family (Greek Platanus, broad leaf). 1 genus (Platanus) / 7 species. Observe a vegetative and reproductive branch of Platanus. Note the distinctive encircling stipules (leaving an encircling stipule scar on the twigs), infrapetiolar buds, and palmately divided leave ...
General impacts of the feral pig (Sus scrofa) Rooting by pigs disturbs
... Swank and Clebsch 1984, Arrington, Toth and Koebel 1999, in Wolf and Conover 2003). Due to the elevated rates of nitrogen in some pig rooted areas, high abundance of feral pigs near to streams leads to increased levels of nitrogen in stream water, Singer et al. (1984) found nitrate-nitrogen in strea ...
... Swank and Clebsch 1984, Arrington, Toth and Koebel 1999, in Wolf and Conover 2003). Due to the elevated rates of nitrogen in some pig rooted areas, high abundance of feral pigs near to streams leads to increased levels of nitrogen in stream water, Singer et al. (1984) found nitrate-nitrogen in strea ...
Winter Flowering Plants
... evergreen foliage. Requires acid soils. Long lowering period. Chimononanthus Praecox - Sweetly scented pale yellow flowers produced on mature plants. Cornus Mas - Cornelian Cherry - Large shrubs with small yellow flowers cover bare stems during February. Daphne Mesereum - Sweet scented purple/red fl ...
... evergreen foliage. Requires acid soils. Long lowering period. Chimononanthus Praecox - Sweetly scented pale yellow flowers produced on mature plants. Cornus Mas - Cornelian Cherry - Large shrubs with small yellow flowers cover bare stems during February. Daphne Mesereum - Sweet scented purple/red fl ...
Production of Naked-Seeded Pumpkin: A Food Crop for the Family
... The naked-seeded pumpkin varieties will intercross with all annual Cucurbita species and varieties except Cucurbita maxima. Therefore, isolation is needed to prevent loss of the naked-seeded characteristic in subsequent generations. At Rosemount, '14 mile isolation was not enough but 1 mile was suff ...
... The naked-seeded pumpkin varieties will intercross with all annual Cucurbita species and varieties except Cucurbita maxima. Therefore, isolation is needed to prevent loss of the naked-seeded characteristic in subsequent generations. At Rosemount, '14 mile isolation was not enough but 1 mile was suff ...
gilbert`s potoroo factsheet - WWF
... threatens to destroy the type of habitat that Gilbert's potoroo is restricted to. This introduced fungus can attack the truffle food sources that the potoroo relies on for survival. Fire: Wild fire has the potential to wipe out the entire wild population in one disastrous event. The only known wild ...
... threatens to destroy the type of habitat that Gilbert's potoroo is restricted to. This introduced fungus can attack the truffle food sources that the potoroo relies on for survival. Fire: Wild fire has the potential to wipe out the entire wild population in one disastrous event. The only known wild ...
New Britain ROOTS Organic Seed Fundraiser
... sweet basil, recommended for drying, all-around great eating, and large-scale pesto production. Can be direct seeded but for quickest growth start indoors and transplant out after all danger of frost. Set seedlings 4" apart. Topping mature plants induces branching and increases total yields. Likes h ...
... sweet basil, recommended for drying, all-around great eating, and large-scale pesto production. Can be direct seeded but for quickest growth start indoors and transplant out after all danger of frost. Set seedlings 4" apart. Topping mature plants induces branching and increases total yields. Likes h ...
Chapter 22: The Diversity of Plants
... evolved into many species, adapted to different environments, and today are more abundant than club mosses or horsetails. Ferns range in size from a few meters tall, like tree ferns, to small, floating plants that are only a few centimeters in diameter, such as those in Figure 22.9. You may have see ...
... evolved into many species, adapted to different environments, and today are more abundant than club mosses or horsetails. Ferns range in size from a few meters tall, like tree ferns, to small, floating plants that are only a few centimeters in diameter, such as those in Figure 22.9. You may have see ...
Chapter 22: The Diversity of Plants
... evolved into many species, adapted to different environments, and today are more abundant than club mosses or horsetails. Ferns range in size from a few meters tall, like tree ferns, to small, floating plants that are only a few centimeters in diameter, such as those in Figure 22.9. You may have see ...
... evolved into many species, adapted to different environments, and today are more abundant than club mosses or horsetails. Ferns range in size from a few meters tall, like tree ferns, to small, floating plants that are only a few centimeters in diameter, such as those in Figure 22.9. You may have see ...
Seed size, growth rate and gap microsite
... neotropical pioneer species. We investigated the soil seed bank, and followed seedlings from emergence and establishment to the sapling stage in artificially created gaps in secondary forest on the Barro Colorado Nature Monument, Panamá. 2 To simulate microsite variation within gaps, litter addition ...
... neotropical pioneer species. We investigated the soil seed bank, and followed seedlings from emergence and establishment to the sapling stage in artificially created gaps in secondary forest on the Barro Colorado Nature Monument, Panamá. 2 To simulate microsite variation within gaps, litter addition ...
15. Gymnosperms of Nainital
... Roxb. (cedar), but in catchments of lower lakes at 1200-1400m altitudes tropical and subtropical plants such as species of Bauhinia variegata (Linn.)Benth. and Butea Roxb. And Pinus roxburghii Roxb. occur. Quercus Leucotricophora A.Camus (banj oak) forests are usually confined between 1500- 2400 m b ...
... Roxb. (cedar), but in catchments of lower lakes at 1200-1400m altitudes tropical and subtropical plants such as species of Bauhinia variegata (Linn.)Benth. and Butea Roxb. And Pinus roxburghii Roxb. occur. Quercus Leucotricophora A.Camus (banj oak) forests are usually confined between 1500- 2400 m b ...
Conservation Action Plan - Fairchild Tropical Botanic Garden
... lobbed, sometimes split fully to the base; white to reddish; inconspicuous. Inflorescences solitary in leaf axils. Peduncle shorter than to slightly exceeding the leaf. Cyathia glabrous to densely pubescent, involucre campanulate, .9-1.9 mm long, .5-1.7 mm wide, lobes triangular, equaling to slightl ...
... lobbed, sometimes split fully to the base; white to reddish; inconspicuous. Inflorescences solitary in leaf axils. Peduncle shorter than to slightly exceeding the leaf. Cyathia glabrous to densely pubescent, involucre campanulate, .9-1.9 mm long, .5-1.7 mm wide, lobes triangular, equaling to slightl ...
Handling Arabidopsis plants and seeds
... treatment, also called stratification, may not be required for germination when planting older seeds of these lines. However, a cold treatment at 4°C for 3 days will improve the rate and synchrony of germination. The use of an extended cold treatment of approximately 7 days is especially important f ...
... treatment, also called stratification, may not be required for germination when planting older seeds of these lines. However, a cold treatment at 4°C for 3 days will improve the rate and synchrony of germination. The use of an extended cold treatment of approximately 7 days is especially important f ...
Ecology of Banksia
The ecology of Banksia refers to all the relationships and interactions among the plant genus Banksia and its environment. Banksia has a number of adaptations that have so far enabled the genus to survive despite dry, nutrient-poor soil, low rates of seed set, high rates of seed predation and low rates of seedling survival. These adaptations include proteoid roots and lignotubers; specialised floral structures that attract nectariferous animals and ensure effective pollen transfer; and the release of seed in response to bushfire.The arrival of Europeans in Australia has brought new ecological challenges. European colonisation of Australia has directly affected Banksia through deforestation, exploitation of flowers and changes to the fire regime. In addition, the accidental introduction and spread of plant pathogens such as Phytophthora cinnamomi (dieback) pose a serious threat to the genus's habitat and biodiversity. Various conservation measures have been put in place to mitigate these threats, but a number of taxa remain endangered.