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Lippia Dulcis
Lippia Dulcis

... Lippia Dulcis Native to Central America, Nicaragua and Mexico, Lippia dulcis is well grown in mild and damp climate and under full sun exposure. This 30 cm height grown plant isn`t evergreen, which means, it may lose its 5 cm sized leaves some months during the year. However, during spring time, sma ...
Kingdom_Plantae_Notes
Kingdom_Plantae_Notes

...  The pollen lands on the stigma and germinates, forming a pollen tube through which sperm cells travel to the egg. o Pollen tubes grow through the style to the ovary. o The ovary contains ovules, each containing an egg. A sperm fertilizes the egg forming a zygote which grows into an embryo. o The o ...
Bougainvillea
Bougainvillea

... The Bougainvillea, a versatile, evergreen desert woody vine, flowers several times throughout the year and is native to the Brazilian coast. The most common type of Bougainvillea plant in the Southwest has vibrant reddish pink flowers; however some varieties have more pink, salmon or purple blooms. ...
bougainvillea - Johnson Ranch
bougainvillea - Johnson Ranch

... The Bougainvillea, a versatile, evergreen desert woody vine, flowers several times throughout the year and is native to the Brazilian coast. The most common type of Bougainvillea plant in the Southwest has vibrant reddish pink flowers; however some varieties have more pink, salmon or purple blooms. ...
Chapter 12: Plants (pgs. 291-302) Heather Mims Classification and
Chapter 12: Plants (pgs. 291-302) Heather Mims Classification and

... o Sphenophyta; horsetails o Pterophyta; ferns o Cycadophyta; cydads o Cnetophyta; highly specialized trees, shrubs and climbing vines o Ginkgophyta; only one living species Ginkogobiloba o Coniferophyta; conifers o Anthophyta; flowering plants  Members of the plant kingdom have chlorophyll and man ...
Cold Comforts
Cold Comforts

... to diminish during chilly temperatures. And gardening for five months of color is significant in my northern garden. I used to worry about those first-to-perish annuals. Sweet potato vine and coleus, two of my favorites, were spent when temperatures dipped into the 30s. Many years back, I noticed th ...
Privet (Ligustrum spp.) - University of Tennessee Extension
Privet (Ligustrum spp.) - University of Tennessee Extension

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PowerPoint
PowerPoint

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Parts of a Flower
Parts of a Flower

... • A growing plant produces new cells in areas called meristems. Meristems are regions of actively dividing cells. Apical meristems are found at or near the tips of roots and stems. • The vascular cambium produces new xylem and phloem cells in the stems and roots. The cork cambium produces cells with ...
Australian National Botanic Gardens
Australian National Botanic Gardens

... cm high. Flower *colour is a purplish red with a tube sometimes paler and the anthers yellow. Each trumpet-shaped flower is held on a long, thin pedicel and is about 2 cm long. The plant makes an ideal rockery subject, taking up very little space but extending its flowering stem high enough to becom ...
Pacific waterleaf - University of Washington
Pacific waterleaf - University of Washington

... tolerate a wide range of soil textures, from sandy loam to heavy clay as long as the soil is sufficiently moist.9 Sow the seeds as soon as they are collected in midsummer. Not all of the seeds will germinate, but there should be a fair number of plants by next spring.8 Plants will die back during th ...
7.5 x 11.5.Threelines.p65 - Beck-Shop
7.5 x 11.5.Threelines.p65 - Beck-Shop

... plants. In all taxa except seed plants, however, at least a thin film of water is required for fertilization; and even in two primitive groups of seed plants, the cycads and Ginkgo, fertilization is by free-swimming spermatozoids released into a liquid medium in the archegonial chamber. A few angiosp ...
Leaves of these plants have their veins arranged in
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... The cones of this common tree, grown for its wood in the South, may take up to two years to mature. ...
Keywords: gamma irradiation, Jasminum sambac, mutation
Keywords: gamma irradiation, Jasminum sambac, mutation

... including the survival of cuttings were investigated in unirradiated and irradiated sampaguita. Cuttings were exposed to varying doses of gamma rays ranging from 0, 3, 5, 10 and 15 Gy. Unirradiated control plants and those irradiated at 15 Gy had the highest percent survival of cuttings which was no ...
Plants
Plants

... When the small plant inside begins to grow, the seed germinates. The young plant that grows from a seed is the seedling. Seeds are scattered by planting, wind, water, and animals. ...
Poisonous Plants
Poisonous Plants

... Even a small mouthful can kill an adult. Therefore it stands to reason that ingesting even a little bit of the juice will make a person seriously ill. So, it is best to learn to identify these plant by sight, rather than characteristics that require you to handle it or examine the roots or inside of ...
Lab #9: Plant Diversity
Lab #9: Plant Diversity

... “evergreen”, holding their needle-like or scale-like leaves year round. This allows for growth year round, although this growth is reduced in the seasons of least sunlight. The reduced leaves are adapted to colder, drier climates with a thick cuticle (waxy layer that prevents water loss). Commercial ...
Plant Physiology: Environmental Factors and Photosynthesis
Plant Physiology: Environmental Factors and Photosynthesis

... shortly before flowering through a few weeks after anthesis. Heat Stress - When temperatures rise too high, heat destruction of the protoplast results in cell death. This occurs in the range of 113-122ºF (45-55ºC). In tomatoes, fruits exposed on vines to high temperatures and high solar radiation ca ...


... Despite its popularity for traditional medicine and charm use, the Lemon Bush is widespread in the wild and locally abundant in some areas. It is a hardy, drought-resistant plant that grows easily from seed in a variety of soil types. ...
Plant Classification Bryophytes
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... • Monocot seeds will not separate into two Halves. Instead, the food is stored around the embryo. • have one seed leaf which is generally long and thin • Rice wheat corn ...
Strange Plants - Pearson SuccessNet
Strange Plants - Pearson SuccessNet

... You may have already heard about plants that trap creatures in their leaves and eat them. If so, you might think that these meat-eating plants are the weirdest plants of all. Well, have you ever heard of plants that actually steal from other plants? How about plants that strangle other plants as the ...
Cultural Requirements of Dendrobium
Cultural Requirements of Dendrobium

... 6-inch long leaves clothe the upper half of the pseudobulbs, and usually remain for one to two years. The number of flowers borne on an inflorescence increases as the plant matures. First-bloom seedlings often bear one to five flowers per spray. Mature plants can produce 20 or more flowers per cane ...
Ostrich Plume Astilbe
Ostrich Plume Astilbe

... Ostrich Plume Astilbe will grow to be about 16 inches tall at maturity extending to 24 inches tall with the flowers, with a spread of 24 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 18 inches apart. Its foliage tends to remain dense right ...
PENTANISIA PRUNELLOIDES  GENERAL DESCRIPTION
PENTANISIA PRUNELLOIDES GENERAL DESCRIPTION

... in dense groups on the ends of branches. ...
Plants final review key - Hicksville Public Schools
Plants final review key - Hicksville Public Schools

... 13. The table below provides some information about common plant cell structures and their functions. In the table, there are three blank spaces. Fill in the three blank spaces by writing the name of the plant cell structure that performs the function described. ...
< 1 ... 217 218 219 220 221 222 223 224 225 ... 347 >

History of botany



The history of botany examines the human effort to understand life on Earth by tracing the historical development of the discipline of botany—that part of natural science dealing with organisms traditionally treated as plants.Rudimentary botanical science began with empirically-based plant lore passed from generation to generation in the oral traditions of paleolithic hunter-gatherers. The first written records of plants were made in the Neolithic Revolution about 10,000 years ago as writing was developed in the settled agricultural communities where plants and animals were first domesticated. The first writings that show human curiosity about plants themselves, rather than the uses that could be made of them, appears in the teachings of Aristotle's student Theophrastus at the Lyceum in ancient Athens in about 350 BC; this is considered the starting point for modern botany. In Europe, this early botanical science was soon overshadowed by a medieval preoccupation with the medicinal properties of plants that lasted more than 1000 years. During this time, the medicinal works of classical antiquity were reproduced in manuscripts and books called herbals. In China and the Arab world, the Greco-Roman work on medicinal plants was preserved and extended.In Europe the Renaissance of the 14th–17th centuries heralded a scientific revival during which botany gradually emerged from natural history as an independent science, distinct from medicine and agriculture. Herbals were replaced by floras: books that described the native plants of local regions. The invention of the microscope stimulated the study of plant anatomy, and the first carefully designed experiments in plant physiology were performed. With the expansion of trade and exploration beyond Europe, the many new plants being discovered were subjected to an increasingly rigorous process of naming, description, and classification.Progressively more sophisticated scientific technology has aided the development of contemporary botanical offshoots in the plant sciences, ranging from the applied fields of economic botany (notably agriculture, horticulture and forestry), to the detailed examination of the structure and function of plants and their interaction with the environment over many scales from the large-scale global significance of vegetation and plant communities (biogeography and ecology) through to the small scale of subjects like cell theory, molecular biology and plant biochemistry.
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