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A review of Alocasia - International Aroid Society
A review of Alocasia - International Aroid Society

... stem may bear a ring of physiognomically lateral infructescences below the leaf crown of the new vegetative module, e.g., in A. robusta M.Hotta (Borneo, Anambas Islands). The spathe is divided into a convolute thicker lower portion – the ‘lower spathe’ – which houses the female zone of the spadix an ...
Plant Form and Function
Plant Form and Function

... mystery, but close relatives are believed to exist in freshwater lakes today. DNA sequence data is consistent with the claim that a single “Eve” gave rise to the entire kingdom Plantae 450 million years ago. At each subsequent step in evolution, the evidence suggests that only a single family of pla ...
Tropicals - Greenstock Nurseries
Tropicals - Greenstock Nurseries

... Dimensions: A small tree to 4 m generally but it has been noted as reaching 6 m on rare occasions in its natural habitat. Flowers: Intense orange to red flowers are produced on racemes that are commonly spreading on a multi branching stem. The stem is generally produced at the head of the plant, giv ...
Some Wayside Flowers of Central Korea
Some Wayside Flowers of Central Korea

... more showy member of the same family. Its long flower-stems, thickly covered with creamy-white flowers, may be seen from afar, as the plant grows in abundance on open hillsides. (If anyone should be hot-tempered, let him make an infusion from the leaves of this plant, and the draught will have a won ...
Invasive Plants Common in Connecticut Invasive Plants Common in
Invasive Plants Common in Connecticut Invasive Plants Common in

... speed up marsh degradation. The rhizome mat prevents germination and seedling growth of other plant species including arrow arum (Peltandra virginica), which is an important duck food. Description/Biology: Plant: perennial that grows to a height of 1-3 ft. and produces thick pink-fleshed rhizomatous ...
Effects of Leaf and Root Extracts of Newbouldia laevis on Hepatic
Effects of Leaf and Root Extracts of Newbouldia laevis on Hepatic

... were used as renal toxicity indicators. The activities of ALT, AST, ALP and GGT decreased insignificantly (P>0.05) in the groups given 200 and 400mg/kg of DWL extract, while the enzymes activity groups given 200 and 400mg/kg of other extracts increased insignificantly (P>0.05). The increases obtaine ...
Mesquite - FutureBeef
Mesquite - FutureBeef

... The leaves are dark green and divided into numerous small fern-like leaflets. Most varieties have minute hairs on both surfaces. The twigs are smooth-barked and armed with straight spines which vary in size, but may reach a length of 10cm. They are usually found in pairs rising from the leaf base. T ...
February 2017 (314kB pdf)
February 2017 (314kB pdf)

... 1. Where named plant examples are asked for, full botanical names (genus and species) are required to achieve full marks. Common names will not be given a mark. 2. Use the command statements e.g. list or name (single words only), state (a few sentences), describe or explain (a fuller answer) togethe ...
Stem nematode on Narcissus and Tulip
Stem nematode on Narcissus and Tulip

... one of the most serious plant-parasitic nematodes of temperate regions, including Europe and the Mediterranean area. The pest is becoming more common in the UK, with a significant increase in the number of outbreaks reported in recent years. Stem nematode is a tiny thread-like, transparent and barel ...
rose growing in hawaii
rose growing in hawaii

... ly only 6 to 12 inches high. Flowers are borne in masses. The plants are often used in containers or in rock gardens ('Tom Thumb,' 'Red Elf). ...
.. ? \< 4
.. ? \< 4

... This is a resinous bush, as abundant as “gobernacfora” in plains and hillsides of desert or semi-desert areas of the northern region of Mexico. Sometimes, mile after mile of land is covered with a thicket of these two species, giving the landscape a thrilling monotony. Harmony among members of this ...
Somatic embryogenesis from leaf explants
Somatic embryogenesis from leaf explants

... light intensity of 30 µmol m -2 s-1 white fluorescent light. EXPLANT PREPARATION Leaves are detached from well-developed 28-30 days old in vitro plants. Every foliole of the trifoliate leaves is wounded 3-4 times by scalpel blade across main vein. Leaves prepared that way are transferred abaxial sid ...
CARNIVOROUS
CARNIVOROUS

... This Florida-native orchid has thick, succulent, lanceWater Spider Orchid (Habenaria shaped leaves, but is noted for its tall stalk of pale repens) green flowers resembling small spiders. Grows 12" to 24"' tall. ...
invasive plants in the crown
invasive plants in the crown

... soil nutrients, sunlight and space to grow. Once invasive plants become established, there are far-reaching consequences throughout the ecosystem for the native plant and wildlife communities. In a healthy plant community, various native plants fill every ecological niche in the system. Especially i ...
What is Garlic Mustard?
What is Garlic Mustard?

... triangular to heartshaped, coarsely toothed leaves that give off an odor of garlic when crushed (particularly new leaves). First-year plants appear only as a cluster of green leaves close to the ground. Clusters remain green through the winter and develop into flowering plants the following spring. ...
Johannesteijsmannia sp. - Palm Beach Palm and Cycad Society
Johannesteijsmannia sp. - Palm Beach Palm and Cycad Society

... just as it is spelled, but it still is quite a mouthful. Most growers and collectors just use the name Joey, as I will do for this article. The genus Joey consists of four species of palms endemic to Indonesia, Malaysia, and southern Thailand. Joey altifrons and Joey magnifica are commonly available ...
Grass Key Draft - Canadian Weed Science Society
Grass Key Draft - Canadian Weed Science Society

... 15. Auricles present (sometimes rudimentary or deciduous) (Figs. 5A-C). Note that claw-like auricles are not always well developed on all leaves and are often deciduous; several fresh leaves in good condition should be examined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Piante per Bevande
Piante per Bevande

... uterus[269]. Hop flowers are much used as an infusion or can also be used to stuff pillows where the weight of the head will release the volatile oils[213]. The fruit is also applied externally as a poultice to ulcers, boils, painful swellings etc[4, 218], it is said to remedy painful tumours[269]. ...
The NAC-domain transcription factor GOBLET
The NAC-domain transcription factor GOBLET

... UNIFOLIATA and SINGLE LEAFLET, respectively, are also involved in leaf elaboration (Hofer et al., 1997; Wang et al., 2008). Likewise, several plant hormones, such as auxin and gibberellic acid (GA), have also been implicated in leaf elaboration, either via regulation of maturation or through mediati ...
Micro-organisms Associated with Plant Buds
Micro-organisms Associated with Plant Buds

... better, were thinner, or had fewer trichomes). If micro-organisms were not detected in the examination time allotted for each bud (about five min), the bud was considered negative. Bacteria often were in groups. Buds were categorized as not bearing bacteria if objects which in fact may have been bac ...
Corymbia and Eucalyptus Trees Found in South Florida
Corymbia and Eucalyptus Trees Found in South Florida

... Eucalyptus trees are divided horticulturally into several groups. The ‘gum’ type is the most common of the groups found in South Florida. The entire trunk, or all but a short portion of the base, eventually becomes smooth. Gum trees shed their bark in various patterns and secrete gum (known commerci ...


... type and five groups. . To identify a legume examine the leaf type of the plant and decide to which the five groups it belongs. If the plant has trifoliate leaves (Group 3) it must be allocated, in a similar, way to one of 3 sUb-groups. Each group (or sub-group) is arranged in paired statements (exc ...
Growing Herbs - West Lafayette
Growing Herbs - West Lafayette

... Lady’ will bloom the first year from seed and grows well in northern climates. ‘Hidcote’ and ‘Munstead’ are also popular cultivars that will perform well. L. x intermedia (‘Provence’ and ‘Grosso’) may survive all but the coldest winters. L. dentata (French fringed lavender) and L. stoechas (Spanish ...
Herbal Medicine - Dave
Herbal Medicine - Dave

... (boiled/masticated inner bark) (bark for eyelid granulation) (bark used) (root bark used) (roots used) (roots used for sore eyes) ...
PDF
PDF

... Odland and Lepper (37) deseribed a plant with crinkled leaves, which was observed in the progeny of a cross between tetraploid .lIedicago sativa and tetraploid .1/. fa/c(lia L. TIH'Y l1!'('I'ibed the abnormality to the epidermis and mesophyll growing at a more rapid ratIO t,han the vascular tissue. ...
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Leaf



A leaf is an organ of a vascular plant and is the principal lateral appendage of the stem. The leaves and stem together form the shoot. Foliage is a mass noun that refers to leaves collectively.Typically a leaf is a thin, dorsiventrally flattened organ, borne above ground and specialized for photosynthesis. Most leaves have distinctive upper (adaxial) and lower (abaxial) surfaces that differ in colour, hairiness, the number of stomata (pores that intake and output gases) and other features. In most plant species, leaves are broad and flat. Such species are referred to as broad-leaved plants. Many gymnosperm species have thin needle-like leaves that can be advantageous in cold climates frequented by snow and frost. Leaves can also have other shapes and forms such as the scales in certain species of conifers. Some leaves are not above ground (such as bulb scales). Succulent plants often have thick juicy leaves, but some leaves are without major photosynthetic function and may be dead at maturity, as in some cataphylls, and spines). Furthermore, several kinds of leaf-like structures found in vascular plants are not totally homologous with them. Examples include flattened plant stems (called phylloclades and cladodes), and phyllodes (flattened leaf stems), both of which differ from leaves in their structure and origin. Many structures of non-vascular plants, and even of some lichens, which are not plants at all (in the sense of being members of the kingdom Plantae), look and function much like leaves. The primary site of photosynthesis in most leaves (palisade mesophyll) almost always occurs on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of Eucalyptus palisade occurs on both sides and the leaves are said to be isobilateral.
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