Calamoideae
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Calamoideae
Calamoideae is a subfamily of flowering plant in the palm family found throughout Central America, South America, Africa, India, China, Southeast Asia and Australia. It is represented by 21 genera - containing nearly a quarter of all species in the palm family - including the largest genus, ''Calamus'', the type genus of the group. Only four are found in the New World while the rest are Old World denizens, usually found in equatorial swampland or along tropical coastlines. While the many species show marked differences, the bracts of all orders are tubular, the flowers are almost always borne in dyads or dyad derivatives, but most marked as an identifier among these palms are the overlapping scales covering the fruit; occasionally small and irregular they are, in most cases, neatly aligned in vertical rows. Also common to the group are varying forms of armament: spines along leaf margins or on sheaths, root and stem spines, reflexed rachis cirri, or specialized hooks among the ...
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Rattan
Rattan, also spelled ratan, is the name for roughly 600 species of Old World climbing palms belonging to subfamily Calamoideae. The greatest diversity of rattan palm species and genera are in the closed-canopy old-growth tropical forests of Southeast Asia, though they can also be found in other parts of tropical Asia and Africa. Most rattan palms are ecologically considered lianas due to their climbing habits, unlike other palm species. A few species also have tree-like or shrub-like habits. Around 20% of rattan palm species are economically important and are traditionally used in Southeast Asia in producing wickerwork furniture, baskets, canes, woven mats, cordage, and other handicrafts. Rattan canes are one of the world's most valuable non-timber forest products. Some species of rattan also have edible scaly fruit and heart of palm. Despite increasing attempts in the last 30 years at commercial cultivation, almost all rattan products still come from wild-harvested plants. ...
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Arecaceae
The Arecaceae is a family of perennial flowering plants in the monocot order Arecales. Their growth form can be climbers, shrubs, tree-like and stemless plants, all commonly known as palms. Those having a tree-like form are called palm trees. Currently, 181 genera with around 2,600 species are known, most of which are restricted to tropical and subtropical climates. Most palms are distinguished by their large, compound, evergreen leaves, known as fronds, arranged at the top of an unbranched stem. However, palms exhibit an enormous diversity in physical characteristics and inhabit nearly every type of habitat within their range, from rainforests to deserts. Palms are among the best known and most extensively cultivated plant families. They have been important to humans throughout much of history. Many common products and foods are derived from palms. In contemporary times, palms are also widely used in landscaping. In many historical cultures, because of their importance as ...
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Oncocalamus
''Oncocalamus'' is a monoecious genus of flowering plants in the palm family found in western Africa. The genus is the lone member of the Oncocalaminae; once placed with the vegetatively similar '' Eremospatha'' and '' Laccosperma'' in the Ancistrophyllinae, it is now isolated based on their unusual flowers and arrangement. Such a placement argues for a long and complex evolutionary process in the Calamoideae with heavy extinction rates.Uhl, Natalie W. and Dransfield, John (1987) ''Genera Palmarum - A classification of palms based on the work of Harold E. Moore''. Lawrence, Kansas: Allen Press. / The Greek genus name combines "horn" and "capsule".Riffle, Robert L. and Craft, Paul (2003) ''An Encyclopedia of Cultivated Palms''. Portland: Timber Press. / Description The trunks are small, very spiny, and high climbing, becoming bare with age. All species form dense clusters with undivided or bifid juvenile leaves which become pinnate in maturity, with leaf sheath spines, ...
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Myrialepis
''Myrialepis'' is a monotypic genus of flowering plant in the palm family, the single species, ''Myrialepis paradoxa'', native to Southeast Asia.Riffle, Robert L. and Craft, Paul (2003) ''An Encyclopedia of Cultivated Palms''. Portland: Timber Press. / The genus name is a combination of the Greek words meaning "innumerable" and "scale", a description of the fruit, and the epithet is Latin for "paradox". Description The trunks are clustering and climbing at 7 cm wide and are armed with whorls of sharp, golden spines. Reaching high into the canopy, the red to brown stems retain persistent leaf sheaths in its new growth but become bare toward the base, exposing conspicuous rings of leaf scars. Each mature leaf is comparatively large at 3 m, pinnate, and carried on armed petioles, with widely and regularly spaced, dark green leaflets. The spiny rachis extends well beyond the pinnae and is accompanied by pairs of recurved barbs adapted for climbing.Uhl, Natalie W. and Dransfield ...
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Eugeissona
''Eugeissona'' is a clustering genus of flowering plant in the palm family native to Borneo, Thailand and Malaysia. The six monoecious species provide a wide range of local uses and are commonly called bertam or wild Bornean sago. The genus is the sole representative of the Eugeissoninae having very few obvious relatives; the hermaphrodite and staminate flowers are also found in '' Metroxylon'', however the other specialized characteristics are unique suggesting an early split and differentiation from other members of the Calameae.Uhl, Natalie W. and Dransfield, John (1987) ''Genera Palmarum - A classification of palms based on the work of Harold E. Moore''. Lawrence, Kansas: Allen Press. / Fossilized pollen belonging to these plants has been recovered in the lower and middle Miocene deposits in Sarawak. The name is from two Greek words meaning "good" and "roof", due to their common use in roof thatching. Description All of the ''Eugeissona'' palms will form above-ground s ...
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Korthalsia
''Korthalsia'' is a clustering genus of flowering plant in the palm family spread throughout Southeast Asia. It is a highly specialized rattan with some species known to have an intimate relationship with ants, hence the common name ant rattan.Uhl, Natalie W. and Dransfield, John (1987) ''Genera Palmarum - A classification of palms based on the work of Harold E. Moore''. Lawrence, Kansas: Allen Press. / High-climbing and armed with spines, the genus is named for the Dutch botanist P. W. Korthals who first collected them from Indonesia. Description In young plants the trunks, petioles and rachises are covered in spines. Mature plants typically lose rachis and petiole spines but will retain trunks spines in its new growth. The suckering stems are small to mostly moderate and are among the few in the palm family that branch; among rattans it is the only one with splitting stems. The trunks are bare at the bottom but retain persistent leaf bases in its youngest parts; enlarged p ...
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Coryphoideae
The Coryphoideae is one of five subfamilies in the palm family, Arecaceae. It contains all of the genera with palmate leaves, excepting ''Mauritia'', ''Mauritiella'' and ''Lepidocaryum,'' all of subfamily Calamoideae, tribe Lepidocaryeae, subtribe Mauritiinae. However, all Coryphoid palm leaves have induplicate (V-shaped) leaf folds (excepting ''Guihaia''), while Calamoid palms have reduplicate (inverted V-shaped) leaf folds. Pinnate leaves do occur in Coryphoideae, in ''Phoenix'', '' Arenga'', ''Wallichia'' and bipinnate in ''Caryota''. Classification Subfamily Coryphoideae is divided into 8 tribes: * Sabaleae ** ''Sabal'' * Cryosophileae ** ''Schippia'' ** '' Trithrinax'' ** ''Zombia'' ** ''Coccothrinax'' ** ''Hemithrinax'' ** ''Thrinax'' ** ''Chelyocarpus'' ** ''Cryosophila'' ** ''Itaya'' ** ''Sabinaria'' * Phoeniceae ** ''Phoenix'' * Trachycarpeae ** ''Chamaerops'' ** ''Guihaia'' ** ''Trachycarpus'' ** ''Rhapidophyllum'' ** ''Maxburretia'' ** ''Rhapis'' ** ''Livistona'' ...
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Laccosperma
''Laccosperma'' is a clustering genus of flowering plant in the family palm found in tropical Africa. Poorly studied and rarely cultivated, they are closely related to the genus '' Eremospatha'' and with it form a tribe in the ''Calameae'' characterized by dyads of hermaphrodite flowers.Uhl, Natalie W. and Dransfield, John (1987) ''Genera Palmarum - A classification of palms based on the work of Harold E. Moore''. Lawrence, Kansas: Allen Press. / The genus name combines the Greek words for "reservoir" and "seed".Riffle, Robert L. and Craft, Paul (2003) ''An Encyclopedia of Cultivated Palms''. Portland: Timber Press. / Description The trunks are mostly medium to large, clustering, high climbing, and extensively armed with sharp spines. The pinnate leaves are usually large, with spiny petioles, rachises and leaf sheaths. The barbed, linear leaflets are regularly arranged along the rachis and usually hang pendent. The end of the rachis is modified for climbing, featuring double, ...
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Eremospatha
''Eremospatha'' is a genus of climbing flowering plants in the palm family found in tropical Africa. These rattans are uncommon in cultivation and poorly understood by taxonomists;. Closely related to ''Laccosperma'', they differentiated by the near complete absence of bracts and bracteoles.Uhl, Natalie W. and Dransfield, John (1987) ''Genera Palmarum - A classification of palms based on the work of Harold E. Moore''. Lawrence, Kansas: Allen Press. / The name is from Greek meaning "without a spathe". Description The slender, high-climbing trunks are naturally clustering and can reach up to 45 m in length. The pinnate leaves range from 30 cm to 2.5 m on short, armed petioles; the rachis, leaf margins and cirri are also armed with spines. They are hermaphroditic, with both male and female reproductive organs present in each flower. The pale blooms are fragrant and produce a red to brown, scaly fruit, each containing one to three seeds.Riffle, Robert L. and Craft, Paul ( ...
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Salacca
''Salacca'' is a genus of about 20 species of palms native to Southeast Asia and the eastern Himalayas. They are dioecious (with the exception of Salak Bali) and pollinated by Curculionidae beetles. They are very short-stemmed palms, with leaves up to 6–8 m long. The leaves have a spiny petiole; in most species they are pinnate with numerous leaflets, but some species, notably ''S. magnifica'', have undivided leaves. The fruit grow in clusters at the base of the plants, and are edible in many species, with a reddish-brown scaly skin covering a white pulp and one to two large inedible seeds. The Salak (''S. zalacca'') or snake fruit is the species most widely grown for its fruit; the firm white pulp has a slight acidic taste. The skin of the snakefruit has a unique texture not unlike that of a snake's skin, rough to the touch in one direction but smooth in the other. Species *'' Salacca acehensis'' Chikmawati. - Aceh *''Salacca affinis'' Griff. - Borneo, Sumatra, Malaysia *'' ...
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Hapaxanthic
Monocarpic plants are those that flower and set seeds only once, and then die. The term is derived from Greek (''mono'', "single" + ''karpos'', "fruit" or "grain"), and was first used by Alphonse de Candolle. Other terms with the same meaning are ''hapaxanth'' and ''semelparous''. The antonym is polycarpic, a plant that flowers and sets seeds many times during its lifetime; the antonym of semelparous is ''iteroparous''. Plants which flower en masse (gregariously) before dying are known as plietesials. The term ''hapaxanth'' is most often in conjunction with describing some of the taxa of Arecaceae (palms) and some species of bamboo, but rarely used otherwise; its antonym is ''pleonanth''. This was first used by Alexander Braun. Monocarpic plants are not necessarily annuals, because some monocarpic plants can live a number of years before they will flower. In some monocarpic plants, flowering signals senescence, while in others the production of fruits and seeds causes changes wit ...
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