Hong Kong Croton
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Hong Kong Croton
''Croton hancei'' Benth., the Hong Kong croton, is a shrub or small tree, a species of '' Croton'' which is endemic to Tsing Yi Island, Hong Kong. In Hong Kong, it is listed in the book ''Rare and precious Plants of Hong Kong''.Hu, Qi-ming, Nian-he Xia, De-lin Wu, Fu-wu Xing, P.C.C. Lai & K. L. Yip. 2003. ''Rare and Precious Plants of Hong Kong''. Agriculture, Fisheries and Conservation Department, Hong Kong. 234 pages/ref> ''Croton hancei'' was discovered by Henry Fletcher Hance, H. F. Hance on Hong Kong Island in the 1850s and published by botanist George Bentham as a new species in ''Flora Hongkongensis'' in 1861. The species was not observed again until 21 February 1997, when staff of the Hong Kong Herbarium of the Agriculture, Fisheries and Conservation Department found an "unknown" species on a steep slope woodland under the highest peak, Tsing Yi Peak, on Tsing Yi Island. After confirmation by experts from the South China Institute of Botany, the Hong Kong Croton was re- ...
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George Bentham
George Bentham (22 September 1800 – 10 September 1884) was an English botanist, described by the weed botanist Duane Isely as "the premier systematic botanist of the nineteenth century". Born into a distinguished family, he initially studied law, but had a fascination with botany from an early age, which he soon pursued, becoming president of the Linnaean Society in 1861, and a fellow of the Royal Society in 1862. He was the author of a number of important botanical works, particularly flora. He is best known for his taxonomic classification of plants in collaboration with Joseph Dalton Hooker, his ''Genera Plantarum'' (1862–1883). He died in London in 1884. Life Bentham was born in Stoke, Plymouth, on 22 September 1800.Jean-Jacques Amigo, « Bentham (George) », in Nouveau Dictionnaire de biographies roussillonnaises, vol. 3 Sciences de la Vie et de la Terre, Perpignan, Publications de l'olivier, 2017, 915 p. () His father, Sir Samuel Bentham, a naval architect, was ...
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Site Of Special Scientific Interest (Hong Kong)
A Site of Special Scientific Interest () or SSSI is a special area to protect wildlife, habitats and geographic features based on scientific interest in Hong Kong. Scientific interests are special features relating to animal life, plant life, geology and/or geography. After being identified by the Agriculture, Fisheries and Conservation Department, these areas are documented by the Planning Department and added to maps. From 1975 to 2005, 67 locations were designated SSSIs throughout Hong Kong. List of SSSIs # Yim Tso Ha Egretry 25/02/75. Delisted in March 2016. # Shing Mun Fung Shui Woodland 25/02/75 # Tai Mo Shan Montane Forest Scrub 15/09/75 # She Shan Fung Shui Woodland 15/09/75 # Tai Tam Harbour (Inner Bay) 24/10/75 # D'Aguilar Peninsula 24/10/75 # Ma On Shan 23/06/76 # Tsing Shan Tsuen 23/06/76 (delisted in 2007) # Sunset Peak 23/06/76 # Mai Po Marshes 15/09/76 # Bluff Island & Basalt Island 16/02/79 # Port Island 16/02/79 # Kat O Chau 16/02/79 (De-Designated o ...
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Flora Of Hong Kong
Flora is all the plant life present in a particular region or time, generally the naturally occurring (indigenous) native plants. Sometimes bacteria and fungi are also referred to as flora, as in the terms ''gut flora'' or ''skin flora''. Etymology The word "flora" comes from the Latin name of Flora, the goddess of plants, flowers, and fertility in Roman mythology. The technical term "flora" is then derived from a metonymy of this goddess at the end of the sixteenth century. It was first used in poetry to denote the natural vegetation of an area, but soon also assumed the meaning of a work cataloguing such vegetation. Moreover, "Flora" was used to refer to the flowers of an artificial garden in the seventeenth century. The distinction between vegetation (the general appearance of a community) and flora (the taxonomic composition of a community) was first made by Jules Thurmann (1849). Prior to this, the two terms were used indiscriminately.Thurmann, J. (1849). ''Essai de Phyt ...
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List Of Croton Species
This is the alphabetical list of 1149 species accepted as belonging to the genus Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nom ... '' Croton'', as of March 2021. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Reassigned taxa *'' Croton aromaticus'', synonym of '' Mallotus tiliifolius'' *'' Croton corymbulosus'' (encilla, manzanilla) is no longer accepted, ''Croton corymbulosus'' var. ''thermophilus'' is a synonym of '' Croton pottsii'' var. ''thermophilus'' *'' Croton echinocarpus'' is a synonym of '' Croton grandivelum'' *'' Croton oblongifolius'' is a synonym for '' Chrozophora tinctoria'' *'' Croton setigerus'' is no longer accepted *'' Croton torreyanus'' (Torrey's croton) is now a synonym of '' Croton incanu ...
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Inflorescence
An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed on the axis of a plant. The modifications can involve the length and the nature of the internodes and the phyllotaxis, as well as variations in the proportions, compressions, swellings, adnations, connations and reduction of main and secondary axes. One can also define an inflorescence as the reproductive portion of a plant that bears a cluster of flowers in a specific pattern. The stem holding the whole inflorescence is called a peduncle. The major axis (incorrectly referred to as the main stem) above the peduncle bearing the flowers or secondary branches is called the rachis. The stalk of each flower in the inflorescence is called a pedicel. A flower that is not part of an inflorescence is called a solitary flower and its stalk is al ...
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Leaf
A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, stem, flower, and fruit collectively form the shoot system. In most leaves, the primary photosynthetic tissue is the palisade mesophyll and is located on the upper side of the blade or lamina of the leaf but in some species, including the mature foliage of ''Eucalyptus'', palisade mesophyll is present on both sides and the leaves are said to be isobilateral. Most leaves are flattened and have distinct upper (adaxial) and lower ( abaxial) surfaces that differ in color, hairiness, the number of stomata (pores that intake and output gases), the amount and structure of epicuticular wax and other features. Leaves are mostly green in color due to the presence of a compound called chlorophyll that is essential for photosynthesis as it absorbs light ...
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Petiole (botany)
In botany, the petiole () is the stalk that attaches the leaf blade to the stem, and is able to twist the leaf to face the sun. This gives a characteristic foliage arrangement to the plant. Outgrowths appearing on each side of the petiole in some species are called stipules. Leaves with a petiole are said to be petiolate, while leaves lacking a petiole are called sessile or apetiolate. Description The petiole is a stalk that attaches a leaf to the plant stem. In petiolate leaves, the leaf stalk may be long, as in the leaves of celery and rhubarb, or short. When completely absent, the blade attaches directly to the stem and is said to be sessile. Subpetiolate leaves have an extremely short petiole, and may appear sessile. The broomrape family Orobanchaceae is an example of a family in which the leaves are always sessile. In some other plant groups, such as the speedwell genus '' Veronica'', petiolate and sessile leaves may occur in different species. In the grasses (Poaceae), ...
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