Glossary of Bromeliaceae terms based on information from many
... aer-: Referring to the air (aeranthos = flowers of the air). aerial roots: Roots produced above or out of the growing medium. aesitivation: The arrangement of floral parts in the bud. affina: Related to another species; often used in the sense of being doubtful or ambiguous; shortened as aff. after- ...
... aer-: Referring to the air (aeranthos = flowers of the air). aerial roots: Roots produced above or out of the growing medium. aesitivation: The arrangement of floral parts in the bud. affina: Related to another species; often used in the sense of being doubtful or ambiguous; shortened as aff. after- ...
Guide to Using the Native Plants Found on the Hempstead Plains
... Forbs are dicots and include broad-leaved herbaceous flowering plants in many different families. Today’s Hempstead Plains is dominated by these kinds of plants (with some occasional small trees and shrubs). Prairies or grasslands are among the most important biomes in the world. They cover an enorm ...
... Forbs are dicots and include broad-leaved herbaceous flowering plants in many different families. Today’s Hempstead Plains is dominated by these kinds of plants (with some occasional small trees and shrubs). Prairies or grasslands are among the most important biomes in the world. They cover an enorm ...
Chapter 9 THE KINGDOM PLANTAE
... Gametophytes may be uni or bisexual depending upon whether stem is branched or un branched, the sex organs called antheridia (male) and archegonia develop at the tips of stem which are always diocuous having either male or female sex organs. There is protoandry because antheridia mature earlier and ...
... Gametophytes may be uni or bisexual depending upon whether stem is branched or un branched, the sex organs called antheridia (male) and archegonia develop at the tips of stem which are always diocuous having either male or female sex organs. There is protoandry because antheridia mature earlier and ...
How Fruits Form
... as milkweeds, willows, and cottonwoods is similar. Orgardener’s chids have minute, dustlike seeds, which are likewise despair. blown away by the wind. Coconuts and other plants that characteristically occur on or near beaches are regularly spread throughout a region by water (figure 40.14). This sor ...
... as milkweeds, willows, and cottonwoods is similar. Orgardener’s chids have minute, dustlike seeds, which are likewise despair. blown away by the wind. Coconuts and other plants that characteristically occur on or near beaches are regularly spread throughout a region by water (figure 40.14). This sor ...
The role of past and present management in the rural landscape
... In Europe, species-rich semi-natural grasslands have been created and maintained by the long history of grazing by wild animals and livestock (Vera 2000), but agricultural industrialisation in the nineteenth and twentieth century has resulted in the widespread and severe loss of semi-natural grassla ...
... In Europe, species-rich semi-natural grasslands have been created and maintained by the long history of grazing by wild animals and livestock (Vera 2000), but agricultural industrialisation in the nineteenth and twentieth century has resulted in the widespread and severe loss of semi-natural grassla ...
The seedling as part of a plant`s life history strategy
... few large seeds, each with high rates of survival as seedlings, versus producing many small seeds, each with lower rates of survival as seedlings. We, therefore, begin by reviewing the evidence for this trade-off. Our review shows that a full understanding of seed and seedling ecology requires consi ...
... few large seeds, each with high rates of survival as seedlings, versus producing many small seeds, each with lower rates of survival as seedlings. We, therefore, begin by reviewing the evidence for this trade-off. Our review shows that a full understanding of seed and seedling ecology requires consi ...
Timing and success of reproductive stages in the seagrass Zostera
... Conacher, 1997). Under laboratory conditions, 70% of Z. noltii seeds germinated within 26 days, which was higher and faster than the germination found by Loques et al. (1990) for the same species (42% within 63 days). Remaining seeds did not germinate due to the lack of viability. The high rate of s ...
... Conacher, 1997). Under laboratory conditions, 70% of Z. noltii seeds germinated within 26 days, which was higher and faster than the germination found by Loques et al. (1990) for the same species (42% within 63 days). Remaining seeds did not germinate due to the lack of viability. The high rate of s ...
Ch. 38 - HCC Learning Web
... 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 ...
topic #3: angiosperm morphology and flowering
... * Their principal mode of nutrition is photosynthesis. (They contain chlorophyll a, as do all photosynthetic eukaryotes, and they contain chlorophyll b, as do Green Algae and a few other organisms.) Some plant responses overlap. Cold and drought seem to satisfy the same “need.” One can therefore “fo ...
... * Their principal mode of nutrition is photosynthesis. (They contain chlorophyll a, as do all photosynthetic eukaryotes, and they contain chlorophyll b, as do Green Algae and a few other organisms.) Some plant responses overlap. Cold and drought seem to satisfy the same “need.” One can therefore “fo ...
Respiratory potential and Se compounds in pea (Pisum sativum L
... feasibility of biofortifying Se by growing high-Se cereals and soybean, by soil or foliar application of Se (Sima and Gissel-Nielsen, 1985; Gupta and MacLeod, 1999). In the last decade, pea has been studied as a nutritional source of non- or slowly digestible carbohydrates (Skrabanja et al., 1999). ...
... feasibility of biofortifying Se by growing high-Se cereals and soybean, by soil or foliar application of Se (Sima and Gissel-Nielsen, 1985; Gupta and MacLeod, 1999). In the last decade, pea has been studied as a nutritional source of non- or slowly digestible carbohydrates (Skrabanja et al., 1999). ...
Gymnosperms
... cones, together with the small bugs that live on Welwitschia and may help to pollinate it. ...
... cones, together with the small bugs that live on Welwitschia and may help to pollinate it. ...
Fungal fidelity in the myco‐heterotroph‐to‐autotroph life cycle of
... The second hypothesis states that the fitness of a plant with Se and in the presence of herbivores is equal to the fitness of a plant without Se and in the presence of herbivores. Disproving the second null hypothesis demonstrates that the presence of Se has fitness consequences for herbivores. The ...
... The second hypothesis states that the fitness of a plant with Se and in the presence of herbivores is equal to the fitness of a plant without Se and in the presence of herbivores. Disproving the second null hypothesis demonstrates that the presence of Se has fitness consequences for herbivores. The ...
Endless Symbioses Most Intricate
... fungal cells). It can take weeks to more than a year for the little green protocorm to acquire sufficient nutrients from its fungal associate and grow large enough to form its first root and leaf—and once a leaf has formed, the baby orchid can begin the process of photosynthesis in earnest. The situ ...
... fungal cells). It can take weeks to more than a year for the little green protocorm to acquire sufficient nutrients from its fungal associate and grow large enough to form its first root and leaf—and once a leaf has formed, the baby orchid can begin the process of photosynthesis in earnest. The situ ...
Oligoneuron rigidum, aka Solidago rigida
... Meadow wildflowers provide valuable natural habitat for a variety of wildlife and are an essential part of maintaining healthy biodiversity. They attract a group of important wildlife recognized as pollinator species including bees, hummingbirds, butterflies, moths, beetles, birds and other insects. ...
... Meadow wildflowers provide valuable natural habitat for a variety of wildlife and are an essential part of maintaining healthy biodiversity. They attract a group of important wildlife recognized as pollinator species including bees, hummingbirds, butterflies, moths, beetles, birds and other insects. ...
Loss of mammalian species from the South American Gran Chaco
... mammals found there. 2. We assess the potential consequences of the loss of large and medium-sized native mammalian herbivores and frugivores on Chacoan ecosystem functioning, focusing on their role and conservation status in the Argentine Chaco. 3. Our review shows that almost 50% of the largest fr ...
... mammals found there. 2. We assess the potential consequences of the loss of large and medium-sized native mammalian herbivores and frugivores on Chacoan ecosystem functioning, focusing on their role and conservation status in the Argentine Chaco. 3. Our review shows that almost 50% of the largest fr ...
How to save your own seeds
... can wait to harvest seed until the plant has ‘dried down’ in the field. In the process of drying down, all these legumes lose their leaves until only the pods are left. When the pods are dry, most get to the point where the beans rattle in the pods if you shake them. Some beans pods twist open and s ...
... can wait to harvest seed until the plant has ‘dried down’ in the field. In the process of drying down, all these legumes lose their leaves until only the pods are left. When the pods are dry, most get to the point where the beans rattle in the pods if you shake them. Some beans pods twist open and s ...
Final Report 10/10/2012 Key West Botanical Garden EPAC grant
... species, many are diminutive and potentially easily confused with common weeds by volunteers, and are of questionable value in demonstration plantings at KWBG or in out-plantings within their natural habitats. Other small pine rockland herbs were also removed as immediate targets for inclusion based ...
... species, many are diminutive and potentially easily confused with common weeds by volunteers, and are of questionable value in demonstration plantings at KWBG or in out-plantings within their natural habitats. Other small pine rockland herbs were also removed as immediate targets for inclusion based ...
BSI_V39(6). - BSI Journal Archive
... Altitude is perhaps the greatest determining factor in the success or failure of plants imported into Florida. Most high altitude plants are tillandsias, vrieseas, guzmanias, or pitcairnias, and puyas. Most of the bromeliads that are grown suc cessfully in collections are those found growing under 5 ...
... Altitude is perhaps the greatest determining factor in the success or failure of plants imported into Florida. Most high altitude plants are tillandsias, vrieseas, guzmanias, or pitcairnias, and puyas. Most of the bromeliads that are grown suc cessfully in collections are those found growing under 5 ...
video slide
... probe flowers that secrete nectar deep within floral tubes. Before the hummer leaves, anthers will dust its beak and head feathers with pollen. Many flowers that are pollinated by birds are red or pink, colors to which bird eyes are especially sensitive. ...
... probe flowers that secrete nectar deep within floral tubes. Before the hummer leaves, anthers will dust its beak and head feathers with pollen. Many flowers that are pollinated by birds are red or pink, colors to which bird eyes are especially sensitive. ...
(Corema conradii) benefits from ant seed dispersal in coastal US
... typically explained by three theories: (1) the predatoravoidance theory, which posits that predator pressures are greatest at the parent plant and rapid removal of seeds away from the parent plant reduces predation (Janzen 1970; Heithaus 1981; Bond and Slingsby 1984; Beattie 1985; Ohkawara and Higas ...
... typically explained by three theories: (1) the predatoravoidance theory, which posits that predator pressures are greatest at the parent plant and rapid removal of seeds away from the parent plant reduces predation (Janzen 1970; Heithaus 1981; Bond and Slingsby 1984; Beattie 1985; Ohkawara and Higas ...
Weed Control in Natural Areas in the Western United
... Seed production and viability is highly variable, depending on out-crossing and presence of pollinators. A single plant can produce as many as 500,000 seeds per year. Seeds germinate in spring and fall when conditions become favorable. Seedlings compete poorly with established vegetation for soil mo ...
... Seed production and viability is highly variable, depending on out-crossing and presence of pollinators. A single plant can produce as many as 500,000 seeds per year. Seeds germinate in spring and fall when conditions become favorable. Seedlings compete poorly with established vegetation for soil mo ...
full text pdf
... On natural sites southern sweet-grass seeds are spread over long distances by the wind only occasionally. After maturing they shed very quickly and easily in the vicinity of the maternal plant, and remain there. Like in many other wild species, phenotypic polymorphism of seeds expressed by uneven ge ...
... On natural sites southern sweet-grass seeds are spread over long distances by the wind only occasionally. After maturing they shed very quickly and easily in the vicinity of the maternal plant, and remain there. Like in many other wild species, phenotypic polymorphism of seeds expressed by uneven ge ...
A snake in paradise: Disturbance of plant reproduction following
... Secondary extinction and decline of species following extinction of their mutualist partners, may, however, potentially affect a large number of species (Koh et al., 2004). One of the worst known cases of an introduced predator species is the brown treesnake (Boiga irregularis) to the island of Guam ...
... Secondary extinction and decline of species following extinction of their mutualist partners, may, however, potentially affect a large number of species (Koh et al., 2004). One of the worst known cases of an introduced predator species is the brown treesnake (Boiga irregularis) to the island of Guam ...
Niche Expansion and Contraction in a Variable Environment1
... For example, Chipping Sparrows were resident in two habitats during each of the two years of high seed production (1972— 73 and 1974-75) but resident in only one habitat during each of two years of low seed production (1973-74 and 1975-76). Similarly, Vesper Sparrows were absent from the study site ...
... For example, Chipping Sparrows were resident in two habitats during each of the two years of high seed production (1972— 73 and 1974-75) but resident in only one habitat during each of two years of low seed production (1973-74 and 1975-76). Similarly, Vesper Sparrows were absent from the study site ...
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.