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Scilla Cretica
''Scilla cretica'' is a species of flowering plant in the Asparagaceae family. It is referred to by the common name Cretan glory-of-the-snow, and is a bulbous perennial native to Crete, flowering in early spring. It belongs to a group of ''Scilla'' species that were formerly put in a separate genus, ''Chionodoxa'', and may now be treated as ''Scilla'' sect. ''Chionodoxa''. It has not always been recognized as distinct from ''Scilla nana''. Description Like all members of the former genus ''Chionodoxa'', the bases of the stamens are flattened and closely clustered in the middle of the flower. In other species of ''Scilla'', the stamens are not flattened or clustered together. Taxonomy The number of related species recognized as occurring in Crete has varied. In 1987, Sfikas' ''Wild flowers of Crete'' recognized two (then placed in ''Chionodoxa''), ''C. cretica'' and ''C. nana''. In 1993, the Natural History Museum's checklist of the Cretan Flora recognized only ''Scilla nana''. , ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierre Edmond Boissier
Pierre Edmond Boissier (25 May 1810 Geneva – 25 September 1885 Valeyres-sous-Rances) was a Swiss prominent botanist, explorer and mathematician. He was the son of Jacques Boissier (1784-1857) and Caroline Butini (1786-1836), daughter of Pierre Butini (1759-1838) a well-known physician and naturalist from Geneva. With his sister, Valérie Boissier (1813-1894), he received a strict education with lessons delivered in Italian and Latin. Edmond's interest in natural history stemmed from holidays in the company of his mother and his grandfather, Pierre Butini at Valeyres-sous-Rances. His hikes in the Jura and the Alps laid the foundation of his zest for later exploration and adventure. He attended a course at the Academy of Geneva given by Augustin Pyramus de Candolle. Edmond Boissier collected extensively in Europe, North Africa and western Asia, on occasion accompanied by his daughter, Caroline Barbey-Boissier (1847-1918) and her husband, William Barbey (1842-1914), who collect ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Theodor Von Heldreich
Theodor Heinrich Hermann von Heldreich (3 March 1822 – 7 September 1902) was a German botanist born in Dresden. In 1851, he settled in Greece for the rest of his life. He carried out botanical experiments in the country. He published thirteen volumes of the “Herbarium Graecum Normale” between 1856 and 1896. In Greece, he served as director of the National Garden of Athens for over 50 years. He was also director of the natural history museum of Athens. Heldreich was good friends with Charles Darwin. Biography Scion of an old aristocratic family, he was the son of Conrad Friedrich Robert Heldreich and Amalia Charlotte Humbold. He initially studied philosophy. A love of botany, however, took him to Montpellier in 1837 to study under Professor Michel Félix Dunal. He later completed his botanical education in Geneva (1838–1842). In 1841, he was honoured by botanist Pierre Edmond Boissier, who named a genus of plants (in family Brassicaceae) from Palestine and Turkey '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Franz Speta
Franz Speta (22 December 1941 – 5 December 2015) was an Austrian botanist. He specialized in bulbous plants, especially the Hyacinthaceae. Career Speta worked as an apprentice for a clerk. He then studied at the University of Vienna in the Department of Botany and Zoology. He wrote among professors such as Lothar Geitler and Tschermak Woess about the "evolution and karyology of elaiosomes to fruit and seeds." In 1972, he received a Ph.D. From 1970, he was a research associate at the Upper Austrian Provincial Museum Linz, initially as Head of botany and invertebrates, from 1985 as director deputy of the National Museum and 1990 to 1991 as interim director. From 1993 to 2003 he was head of the newly founded Biology Centre of the National Museum. In 1982, he received the venia legendi of Systematic Botany at the University of Salzburg. In 1994, he became the Councilor appointed. Research The research focus of Speta was the bulbous plants, especially the Hyacinthaceae focusing Sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flowering Plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants that produce their seeds enclosed within a fruit. They are by far the most diverse group of land plants with 64 orders, 416 families, approximately 13,000 known genera and 300,000 known species. Angiosperms were formerly called Magnoliophyta (). Like gymnosperms, angiosperms are seed-producing plants. They are distinguished from gymnosperms by characteristics including flowers, endosperm within their seeds, and the production of fruits that contain the seeds. The ancestors of flowering plants diverged from the common ancestor of all living gymnosperms before the end of the Carboniferous, over 300 million years ago. The closest fossil relatives of flowering plants are uncertain and contentious. The earliest angiosperm fossils ar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asparagaceae
Asparagaceae, known as the asparagus family, is a family of flowering plants, placed in the order Asparagales of the monocots. The family name is based on the edible garden asparagus, ''Asparagus officinalis''. Those who live in the temperate climates may be surprised to learn that this family includes both common garden plants as well as common houseplants. The garden plants include asparagus, yucca, bluebell, and hosta, and the houseplants include snake plant, corn cane, spider plant and plumosus fern. Taxonomy In earlier classification systems, the species involved were often treated as belonging to the family Liliaceae. The APG II system of 2003 allowed two options as to the circumscription of the family: either Asparagaceae ''sensu lato'' ("in the wider sense") combining seven previously recognized families, or Asparagaceae ''sensu stricto'' ("in the strict sense") consisting of very few genera (notably ''Asparagus'', also ''Hemiphylacus''), but nevertheless totalling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bulb
In botany, a bulb is structurally a short stem with fleshy leaves or leaf basesBell, A.D. 1997. ''Plant form: an illustrated guide to flowering plant morphology''. Oxford University Press, Oxford, U.K. that function as food storage organs during dormancy. (In gardening, plants with other kinds of storage organ are also called "ornamental bulbous plants" or just "bulbs".) Description The bulb's leaf bases, also known as scales, generally do not support leaves, but contain food reserves to enable the plant to survive adverse conditions. At the center of the bulb is a vegetative growing point or an unexpanded flowering shoot. The base is formed by a reduced stem, and plant growth occurs from this basal plate. Roots emerge from the underside of the base, and new stems and leaves from the upper side. Tunicate bulbs have dry, membranous outer scales that protect the continuous lamina of fleshy scales. Species in the genera ''Allium'', ''Hippeastrum'', '' Narcissus'', and ''Tulipa' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perennial Plant
A perennial plant or simply perennial is a plant that lives more than two years. The term ('' per-'' + '' -ennial'', "through the years") is often used to differentiate a plant from shorter-lived annuals and biennials. The term is also widely used to distinguish plants with little or no woody growth (secondary growth in girth) from trees and shrubs, which are also technically perennials. Perennialsespecially small flowering plantsthat grow and bloom over the spring and summer, die back every autumn and winter, and then return in the spring from their rootstock or other overwintering structure, are known as herbaceous perennials. However, depending on the rigours of local climate (temperature, moisture, organic content in the soil, microorganisms), a plant that is a perennial in its native habitat, or in a milder garden, may be treated by a gardener as an annual and planted out every year, from seed, from cuttings, or from divisions. Tomato vines, for example, live several y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crete
Crete ( el, Κρήτη, translit=, Modern: , Ancient: ) is the largest and most populous of the Greek islands, the 88th largest island in the world and the fifth largest island in the Mediterranean Sea, after Sicily, Sardinia, Cyprus, and Corsica. Crete rests about south of the Greek mainland, and about southwest of Anatolia. Crete has an area of and a coastline of 1,046 km (650 mi). It bounds the southern border of the Aegean Sea, with the Sea of Crete (or North Cretan Sea) to the north and the Libyan Sea (or South Cretan Sea) to the south. Crete and a number of islands and islets that surround it constitute the Region of Crete ( el, Περιφέρεια Κρήτης, links=no), which is the southernmost of the 13 top-level administrative units of Greece, and the fifth most populous of Greece's regions. Its capital and largest city is Heraklion, on the north shore of the island. , the region had a population of 636,504. The Dodecanese are located to the no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scilla
''Scilla'' () is a genus of about 30 to 80 species of bulb-forming perennial herbaceous plants in the family Asparagaceae, subfamily Scilloideae. Sometimes called the squills in English, they are native to woodlands, subalpine meadows, and seashores throughout Europe, Africa and the Middle East. A few species are also naturalized in Australasia and North America. Their flowers are usually blue, but white, pink, and purple types are known; most flower in early spring, but a few are autumn-flowering. Several ''Scilla'' species are valued as ornamental garden plants. Taxonomy Species of ''Scilla'' have been known since classical antiquity, being described by both Greek (Theophrastus (371–287 BC) and Discorides (40–90 AD)) and Roman (Pliny (23–79 AD)) writers. Theophrastus described ''Scilla hyacinthoides'' (''skilla''), and more briefly '' S. autumnalis'' and '' S. bifolia'' in his ''Historia plantarum'', where he mentions "those of squill" (σκῐ́λ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scilla Sect
''Scilla'' () is a genus of about 30 to 80 species of bulb-forming perennial herbaceous plants in the family Asparagaceae, subfamily Scilloideae. Sometimes called the squills in English, they are native to woodlands, subalpine meadows, and seashores throughout Europe, Africa and the Middle East. A few species are also naturalized in Australasia and North America. Their flowers are usually blue, but white, pink, and purple types are known; most flower in early spring, but a few are autumn-flowering. Several ''Scilla'' species are valued as ornamental garden plants. Taxonomy Species of ''Scilla'' have been known since classical antiquity, being described by both Greek (Theophrastus (371–287 BC) and Discorides (40–90 AD)) and Roman (Pliny (23–79 AD)) writers. Theophrastus described ''Scilla hyacinthoides'' (''skilla''), and more briefly '' S. autumnalis'' and '' S. bifolia'' in his ''Historia plantarum'', where he mentions "those of squill" (σκῐ́λ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scilla Nana
''Scilla nana'', known as dwarf glory-of-the-snow, is a bulbous perennial from Crete flowering in early spring with flowers in shades of lilac blue. After flowering, it goes into dormancy until the next spring. It belongs to a group of ''Scilla'' species that were formerly put in a separate genus, ''Chionodoxa'', and may now be treated as ''Scilla'' sect. ''Chionodoxa''. It has not always been recognized as distinct from ''Scilla cretica''. Description Like all members of ''Scilla'' sect. ''Chionodoxa'', the bases of the stamens of ''Scilla nana'' are flattened and closely clustered in the middle of the flower. In other species of ''Scilla'', the stamens are not flattened or clustered together. ''S. nana'' (like '' S. cretica'') has two leaves per bulb, and at most one flowering stem, with one to five (more commonly three) flowers in a loose raceme. Individual flowers are up to 2.4 cm diameter with tepals up to 1.1 cm long, most facing upwards, the overall colour effec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stamen
The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filament and an anther which contains ''sporangium, microsporangia''. Most commonly anthers are two-lobed and are attached to the filament either at the base or in the middle area of the anther. The sterile tissue between the lobes is called the connective, an extension of the filament containing conducting strands. It can be seen as an extension on the dorsal side of the anther. A pollen grain develops from a microspore in the microsporangium and contains the male gametophyte. The stamens in a flower are collectively called the androecium. The androecium can consist of as few as one-half stamen (i.e. a single locule) as in ''Canna (plant), Canna'' species or as many as 3,482 stamens which have been counted in the saguaro (''Carnegiea gigantea'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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