|
Alexgeorgea
''Alexgeorgea'' is a genus of three plant species found in Western Australia belonging to the family Restionaceae named in honour of the botanist Alex George in 1976. The flowers of the female and large nut-like fruit are completely underground except for the stigmas, which extend out of the ground as 3 purple or red threads. Botanical history The genus ''Alexgeorgea'' was first discovered by Sherwin Carlquist on 2 September 1974 when he found a population of '' A. subterranea'' on the Cockleshell Gully road north of Jurien Bay in Western Australia. At first, Carlquist, an American botanist and professor at Claremont Graduate University doing field work in Western Australia, could only locate male plants of what he immediately identified as a restionaceous species. In order to identify species in the Restionaceae, it is important to gather material of both male and female flowers, so Carlquist continued to search and only then noticed "purple thread-like structures emergin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexgeorgea Ganopoda
''Alexgeorgea'' is a genus of three plant species found in Western Australia belonging to the family Restionaceae named in honour of the botanist Alex George in 1976. The flowers of the female and large nut-like fruit are completely underground except for the stigmas, which extend out of the ground as 3 purple or red threads. Botanical history The genus ''Alexgeorgea'' was first discovered by Sherwin Carlquist on 2 September 1974 when he found a population of '' A. subterranea'' on the Cockleshell Gully road north of Jurien Bay in Western Australia. At first, Carlquist, an American botanist and professor at Claremont Graduate University doing field work in Western Australia, could only locate male plants of what he immediately identified as a restionaceous species. In order to identify species in the Restionaceae, it is important to gather material of both male and female flowers, so Carlquist continued to search and only then noticed "purple thread-like structures emergin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexgeorgea Nitens
''Alexgeorgea'' is a genus of three plant species found in Western Australia belonging to the family Restionaceae named in honour of the botanist Alex George in 1976. The flowers of the female and large nut-like fruit are completely underground except for the stigmas, which extend out of the ground as 3 purple or red threads. Botanical history The genus ''Alexgeorgea'' was first discovered by Sherwin Carlquist on 2 September 1974 when he found a population of '' A. subterranea'' on the Cockleshell Gully road north of Jurien Bay in Western Australia. At first, Carlquist, an American botanist and professor at Claremont Graduate University doing field work in Western Australia, could only locate male plants of what he immediately identified as a restionaceous species. In order to identify species in the Restionaceae, it is important to gather material of both male and female flowers, so Carlquist continued to search and only then noticed "purple thread-like structures emergin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexgeorgea Subterranea
''Alexgeorgea'' is a genus of three plant species found in Western Australia belonging to the family Restionaceae named in honour of the botanist Alex George in 1976. The flowers of the female and large nut-like fruit are completely underground except for the stigmas, which extend out of the ground as 3 purple or red threads. Botanical history The genus ''Alexgeorgea'' was first discovered by Sherwin Carlquist on 2 September 1974 when he found a population of '' A. subterranea'' on the Cockleshell Gully road north of Jurien Bay in Western Australia. At first, Carlquist, an American botanist and professor at Claremont Graduate University doing field work in Western Australia, could only locate male plants of what he immediately identified as a restionaceous species. In order to identify species in the Restionaceae, it is important to gather material of both male and female flowers, so Carlquist continued to search and only then noticed "purple thread-like structures emergin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexgeorgea Arenicola
''Alexgeorgea'' is a genus of three plant species found in Western Australia belonging to the family Restionaceae named in honour of the botanist Alex George (botanist), Alex George in 1976. The flowers of the female and large nut-like fruit are completely underground except for the Stigma (botany), stigmas, which extend out of the ground as 3 purple or red threads. Botanical history The genus ''Alexgeorgea'' was first discovered by Sherwin Carlquist on 2 September 1974 when he found a population of ''Alexgeorgea subterranea, A. subterranea'' on the Cockleshell Gully road north of Jurien Bay, Western Australia, Jurien Bay in Western Australia. At first, Carlquist, an American botanist and professor at Claremont Graduate University doing field work in Western Australia, could only locate male plants of what he immediately identified as a Restionaceae, restionaceous species. In order to identify species in the Restionaceae, it is important to gather material of both male and fe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Restionaceae
The Restionaceae, also called restiads and restios, are a family (biology), family of flowering plants native to the Southern Hemisphere; they vary from a few centimeters to 3 meters in height. Following the APG IV system, APG IV (2016): the family now includes the former families Anarthriaceae, Centrolepidaceae and Lyginiaceae, and as such includes 51 genera with 572 known species. Based on evidence from fossil pollens, the Restionaceae likely originated more than 65 million years ago during the Cretaceous, Late Cretaceous period, when the southern continents were still part of Gondwana.Bremer, K. (2002). "Gondwanan Evolution of the Grass Alliance of Families (Poales)." ''Evolution'', 56(7): 1374-1387 Description The family consists of tufted or rhizomatous, herbaceous plants belonging to a group of monocotyledons that includes several similar families, such as the Cyperaceae, sedges, Juncaceae, rushes, and Poaceae, grasses. They have green, photosynthetic stems and leaves that h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alex George (botanist)
Alexander Segger George (born 4 April 1939) is a Western Australian botanist. He is the authority on the plant genera ''Banksia'' and ''Dryandra''. The "bizarre" Restionaceae genus '' Alexgeorgea'' was named in his honour in 1976. Early life Alex Segger George was born in Western Australia on 4 April 1939. Career George joined the Western Australian Herbarium as a laboratory assistant at the age of twenty in 1959. He worked under Charles Gardner for a year before the latter's retirement, and partly credits him with rekindling an interest in banksias. In 1963 he graduated with a Bachelor of Arts from the University of Western Australia, and the following year added a botany major. Continuing at the Western Australian Herbarium as a botanist, in 1968 he was seconded as Australian Botanical Liaison Officer at the Royal Botanic Gardens in London. George also has an interest in history, especially historical biography of naturalists in Western Australia. He has published a number ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sherwin Carlquist
Sherwin John Carlquist FMLS (July 7, 1930 - December 1, 2021) was an American botanist and photographer. Education He received his undergraduate degree from the University of California, Berkeley in 1952 and a Ph.D. in botany in 1956, also at Berkeley. During his graduate studies, Marion Elizabeth Stilwell Cave instructed him in the nuances of plant microphotography and embryology. Carlquist did a postdoctoral study at Harvard University from 1955 to 1956. Career After his postdoctoral studies, he began his teaching career at the Claremont Graduate School. In 1977 he also began teaching at Pomona College and continued teaching at both institutions until 1992. From 1984 to 1992 Carlquist was the resident Plant Anatomist at Rancho Santa Ana Botanic Garden. His last post was as an adjunct professor at University of California at Santa Barbara from 1993 to 1998.Sherwin CarlquistBiography and Publications.Accessed online December 5, 2010. Carlquist studied wood anatomy of the Gne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stigma (botany)
The stigma () is the receptive tip of a carpel, or of several fused carpels, in the gynoecium of a flower. Description The stigma, together with the style and ovary (typically called the stigma-style-ovary system) comprises the pistil, which is part of the gynoecium or female reproductive organ of a plant. The stigma itself forms the distal portion of the style, or stylodia, and is composed of , the cells of which are receptive to pollen. These may be restricted to the apex of the style or, especially in wind pollinated species, cover a wide surface. The stigma receives pollen and it is on the stigma that the pollen grain germinates. Often sticky, the stigma is adapted in various ways to catch and trap pollen with various hairs, flaps, or sculpturings. The pollen may be captured from the air (wind-borne pollen, anemophily), from visiting insects or other animals ( biotic pollination), or in rare cases from surrounding water (hydrophily). Stigma can vary from long and sle ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telopea (journal)
''Telopea'' is a fully open-access, online, peer-reviewed scientific journal that rapidly publishes original research on plant systematics, with broad content that covers Australia and the Asia-Pacific region. The journal was established in 1975 and is published by the National Herbarium of New South Wales, Royal Botanic Gardens & Domain Trust. As from Volume 9, part 1, 2000, full text of papers is available electronically in pdf format. It is named for the genus ''Telopea'', commonly known as waratah Waratah (''Telopea'') is an Australian-endemic genus of five species of large shrubs or small trees, native to the southeastern parts of Australia (New South Wales, Victoria, and Tasmania). The best-known species in this genus is ''Telopea speci ...s. The forerunner of ''Telopea'' was ''Contributions from the New South Wales National Herbarium'' which was first published in July 1939 as Volume 1(1). Publication was suspended between 1941 and resumed in 1948 with the publication of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angiosperms Of Western Australia
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 are in the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
A Journal Of Systematic And Evolutionary Botany
A, or a, is the first letter and the first vowel of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''a'' (pronounced ), plural ''aes''. It is similar in shape to the Ancient Greek letter alpha, from which it derives. The uppercase version consists of the two slanting sides of a triangle, crossed in the middle by a horizontal bar. The lowercase version can be written in two forms: the double-storey a and single-storey ɑ. The latter is commonly used in handwriting and fonts based on it, especially fonts intended to be read by children, and is also found in italic type. In English grammar, " a", and its variant " an", are indefinite articles. History The earliest certain ancestor of "A" is aleph (also written 'aleph), the first letter of the Phoenician alphabet, which consisted entirely of consonants (for that reason, it is also called an abjad to distinguish it fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Synonym (taxonomy)
The Botanical and Zoological Codes of nomenclature treat the concept of synonymy differently. * In botanical nomenclature, a synonym is a scientific name that applies to a taxon that (now) goes by a different scientific name. For example, Linnaeus was the first to give a scientific name (under the currently used system of scientific nomenclature) to the Norway spruce, which he called ''Pinus abies''. This name is no longer in use, so it is now a synonym of the current scientific name, ''Picea abies''. * In zoology, moving a species from one genus to another results in a different binomen, but the name is considered an alternative combination rather than a synonym. The concept of synonymy in zoology is reserved for two names at the same rank that refers to a taxon at that rank - for example, the name ''Papilio prorsa'' Linnaeus, 1758 is a junior synonym of ''Papilio levana'' Linnaeus, 1758, being names for different seasonal forms of the species now referred to as ''Araschnia le ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.JPG "Click for more on -> Angiosperms Of Western Australia")
