Eucalyptus punctata (lat. Eucalyptus punctata) — mərsinkimilər fəsiləsinin evkalipt cinsinə aid bitki növü.
Eucalyptus punctata (lat. Eucalyptus punctata) — mərsinkimilər fəsiləsinin evkalipt cinsinə aid bitki növü.
Eucalyptus punctata, commonly known as grey gum,[2] is a small to medium-sized tree that is endemic to eastern Australia. It has smooth grey bark that is shed in patches, lance-shaped, curved or egg-shaped adult leaves flower buds in groups of seven, white flowers and hemispherical or cup-shaped fruit. Its leaves are one of the favoured foods of the koala.
Eucalyptus punctata is a tree that typically grows to a height of 35 m (115 ft) and forms a lignotuber. It has smooth grey, brown or cream-coloured bark that is shed in patches. Young plants and coppice regrowth have dull green leaves that are paler on the lower surface, egg-shaped to lance-shaped, 55–115 mm (2.2–4.5 in) long and 15–35 mm (0.59–1.38 in) wide and petiolate. Adult leaves are glossy dark green, paler on the lower surface, lance-shaped or curved to egg-shaped, 60–180 mm (2.4–7.1 in) long and 14–37 mm (0.55–1.46 in) wide tapering to a petiole 13–26 mm (0.51–1.02 in) long. The flower buds are arranged in leaf axils in groups of seven on an unbranched peduncle 10–20 mm (0.39–0.79 in) long, the individual buds on pedicels 2–8 mm (0.079–0.315 in) long. Mature buds are oval, 6–9 mm (0.24–0.35 in) long and 4–9 mm (0.16–0.35 in) wide with a conical to rounded operculum. Flowering occurs from December to March and the flowers are white. The fruit is a woody, cup-shaped or hemispherical capsule 4–9 mm (0.16–0.35 in) long and 6–10 mm (0.24–0.39 in) wide.[2][3][4][5]
Eucalyptus punctata was first formally described in 1828 by Swiss naturalist Augustin Pyramus de Candolle in his book Prodromus Systematis Naturalis Regni Vegetabilis.[6][7] The specifici epithet (punctata) is from the Latin adjective punctatus meaning "spotted" and refers to the oil glands, which give the leaves a dotted appearance.[8]
It is one a group of related species known collectively as large-fruited grey gums found in eastern Australia, the others being E. longirostrata from eastern Queensland, E. biturbinata from the New England region, and E. canaliculata from the vicinity of Gloucester and Dungog in central-northern New South Wales.[8][4]
Grey gum occurs through the ranges and near coastal areas from near Gympie in Queensland to near Nowra in New South Wales, most commonly on transition zone soil types between sandstone and shale.[8]
It grows in tall open sclerophyll forest, associated with such species as red bloodwood (Corymbia gummifera), pink bloodwood (C. intermedia), spotted gum (C. maculata), white stringybark (E. globoidea), Sydney peppermint (E. piperita), blackbutt (E. pilularis), yellow box (E. melliodora), mountain grey gum (E. cypellocarpa), narrow-leaved ironbark (E. crebra), grey ironbark (E. paniculata), broad-leaved white mahogany (E. umbra), white mahogany (E. acmenoides), and apples (Angophora species).[8][9]
The grey gum regenerates by regrowing from the base and branches after bushfire. Trees live for over a hundred years. The grey-headed flying fox (Pteropus poliocephalus) eats the flowers, while the leaves form a staple of the diet of the koala (Phascolarctos cinereus).[9] Leaves in winter contain less nitrogen than those in summer, which the koalas make up for by eating more in winter months.[10] The brown-headed honeyeater (Melithreptus brevirostris) and yellow-tufted honeyeater (Lichenostomus melanops) have been observed eating gum exudate from the stems.[11] Fieldwork at several sites around central New South Wales showed that the red wattlebird (Anthochaera carunculata) and noisy friarbird (Philemon corniculatus) preferred to forage on the foliage of the grey gum over other trees, with the former appearing to oust the latter if both species were present.[12]
The timber is very hard and durable, and used in construction and for railway sleepers.[8] The multicoloured bark of Eucalyptus punctata that appears from time to time gives the tree some horticultural appeal, and it has potential applications in large parks, reserves and fields.[13]
Adult leaves
Buds
Fruit
Trunk bark
Upper branch bark
flower buds
fruit Eucalyptus punctata, commonly known as grey gum, is a small to medium-sized tree that is endemic to eastern Australia. It has smooth grey bark that is shed in patches, lance-shaped, curved or egg-shaped adult leaves flower buds in groups of seven, white flowers and hemispherical or cup-shaped fruit. Its leaves are one of the favoured foods of the koala.
Eucalyptus punctata llamado comúnmente eucalipto gris ("grey gum"), es una especie de eucalipto perteneciente a la familia de las mirtáceas.
Eucalyptus punctata es uno de los alimentos favoritos del koala en el sureste de Queensland y este de Nueva Gales del Sur, donde se especializa en suelos pobres tales como arenisca. La fotografía es típica de una corteza de años, la cual da al árbol su nombre. En la mayoría de los árboles se muda parcialmente, revelando una superficie desnuda y ligeramente naranja o una lisa y teñida de café.
Eucalyptus punctata fue descrita por A.Cunn. ex DC. y publicado en Prodromus Systematis Naturalis Regni Vegetabilis 3: 217. 1828.[1]
Eucalyptus: nombre genérico que proviene del griego antiguo: eû = "bien, justamente" y kalyptós = "cubierto, que recubre". En Eucalyptus L'Hér., los pétalos, soldados entre sí y a veces también con los sépalos, forman parte del opérculo, perfectamente ajustado al hipanto, que se desprende a la hora de la floración.[2]
punctata: epíteto latíno que significa "punteado, manchado".[3]
Eucalyptus punctata llamado comúnmente eucalipto gris ("grey gum"), es una especie de eucalipto perteneciente a la familia de las mirtáceas.
Eucalyptus punctata, appelé communément gommier ponctué, est une espèce du genre Eucalyptus, famille des Myrtaceae.
Eucalyptus punctata est un grand arbre pouvant atteindre 35 m de haut, avec une écorce de diverses nuances de gris, de blanc et d'orange, qui se répandent en larges écailles[1], donnant au tronc une apparence inégale. Les feuilles adultes vert foncé brillantes sont falciformes ou lancéolées et mesurent de 8 à 15 cm de longueur et de 1,5 à 3 cm cm de largeur. Les fleurs sont blanches[2] et fleurissent de décembre à mars[3].
L'aire de répartition s'étend de la chaîne de Liverpool à Nowra, au centre de la Nouvelle-Galles du Sud, le plus souvent sur un type de sol de zone de transition entre le grès et le schiste[4], comme le grès de Hawkesbury.
Il pousse dans la haute forêt de sclérophylle ouverte, associée à des espèces telles que Corymbia gummifera, Corymbia intermedia, Corymbia maculata, Eucalyptus acmenoides, Eucalyptus crebra, Eucalyptus cypellocarpa, Eucalyptus globoidea, Eucalyptus melliodora, Eucalyptus paniculata, Eucalyptus pilularis, Eucalyptus piperita, Eucalyptus umbra et des espèces de Angophora[4],[5].
Eucalyptus punctata se régénère en repoussant à partir de la base et des branches après le feu de brousse. Les arbres peuvent vivre jusqu'à trois cents ans. Pteropus poliocephalus mange les fleurs tandis que le koala mange les feuilles[5]. Les feuilles en hiver contiennent moins d'azote qu'en été, ce qui fait que les koalas s'en nourrissent davantage en hiver. Le Méliphage à tête brune et le Méliphage cornu ont été observés manger de l'exsudat des tiges. Le travail sur le terrain dans plusieurs sites autour du centre de la Nouvelle-Galles du Sud a montré que le Méliphage barbe-rouge et le Polochion criard préfèrent se nourrir sur le feuillage de Eucalyptus punctata que des autres arbres présents.
Le bois est très dur et durable[1] et utilisé dans les traverses de chemin de fer[2]. L'écorce multicolore de Eucalyptus punctata lui donne un certain attrait horticole.
Eucalyptus punctata, appelé communément gommier ponctué, est une espèce du genre Eucalyptus, famille des Myrtaceae.
Eucalyptus punctata là một loài thực vật có hoa trong Họ Đào kim nương. Loài này được A.Cunn. ex DC. mô tả khoa học đầu tiên năm 1828.[1]
Bài viết tông thực vật Eucalypteae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Eucalyptus punctata là một loài thực vật có hoa trong Họ Đào kim nương. Loài này được A.Cunn. ex DC. mô tả khoa học đầu tiên năm 1828.
斑叶桉（学名：Eucalyptus punctata）为桃金娘科桉属下的一个种。
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