Difference between revisions of "Camellia"

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Evergreen trees or shrubs with alternate short-petioled serrate lvs. and large terminal or axillary white or red fls. followed by subglobose woody caps.: fls. sessile, upright; sepals many, imbricate, deciduous; petals 5 or more; stamens numerous, more or less connate; ovary 3-5-celled, with slender styles connate, at least below: fr. a dehiscent caps.,with few large subglobose seeds.—About 10 species in tropical and subtropical Asia. Often united with Thea, which differs in its nodding and stalked fls. with a persistent calyx consisting of 5 nearly equal sepals. There is a monograph of this genus by Seemann in Trans. Linn. Soc. 22:337-352 (1859) and by Kochs in Engler Bot. Jahrb. 27:577-634 (1900). Illustrated monographs of the horticultural varieties are: Curtis, Monogr. of the genus Camellia (1819); Baumann. Bollweiler Camelliensammlung (1828); Chandler, Camellieae (1831); Berlese, Monogr. du genre Camellia a (1839); Verschaffelt, Nouvelle Monographie du Camellia (1848-1860): the last with 576 and the previous one with 300 colored plates.
 
Evergreen trees or shrubs with alternate short-petioled serrate lvs. and large terminal or axillary white or red fls. followed by subglobose woody caps.: fls. sessile, upright; sepals many, imbricate, deciduous; petals 5 or more; stamens numerous, more or less connate; ovary 3-5-celled, with slender styles connate, at least below: fr. a dehiscent caps.,with few large subglobose seeds.—About 10 species in tropical and subtropical Asia. Often united with Thea, which differs in its nodding and stalked fls. with a persistent calyx consisting of 5 nearly equal sepals. There is a monograph of this genus by Seemann in Trans. Linn. Soc. 22:337-352 (1859) and by Kochs in Engler Bot. Jahrb. 27:577-634 (1900). Illustrated monographs of the horticultural varieties are: Curtis, Monogr. of the genus Camellia (1819); Baumann. Bollweiler Camelliensammlung (1828); Chandler, Camellieae (1831); Berlese, Monogr. du genre Camellia a (1839); Verschaffelt, Nouvelle Monographie du Camellia (1848-1860): the last with 576 and the previous one with 300 colored plates.
 
Camellias grow like natives on sandy lands and even on high pine land in central Florida, but they flower best in half-shady somewhat moist places. The half-double varieties of Camellia japonica do best, while the very double kinds often drop their buds entirely. The flowers suffer very much from the sun and cannot be grown much farther south than central Florida. Camellia Sasanqua, single, half-double and double kinds, grow much more satisfactorily than the varieties of C. japonica. They begin to flower late in October and early November, and the double white C. Sasanqua is a mass of pure white usually at Christmas time. All the varieties of C. Sasanqua have somewhat fragrant flowers. C. reticulata does equally well in Florida. It ia very distinct in foliage from the two former species which have glossy leaves, while the leaves of C. reticulata are dull green. All the camellias are extremely slow growers if not carefully cultivated and fertilized. A mulch of old cow-manure, now and then a little commercial fertilizer, and thorough watering during the dry season several times a week start the bushes into a vigorous and healthy growth. They are so extremely beautiful when in flower that all the care given them is well repaid. (H. Nehrling.)
 
Camellias grow like natives on sandy lands and even on high pine land in central Florida, but they flower best in half-shady somewhat moist places. The half-double varieties of Camellia japonica do best, while the very double kinds often drop their buds entirely. The flowers suffer very much from the sun and cannot be grown much farther south than central Florida. Camellia Sasanqua, single, half-double and double kinds, grow much more satisfactorily than the varieties of C. japonica. They begin to flower late in October and early November, and the double white C. Sasanqua is a mass of pure white usually at Christmas time. All the varieties of C. Sasanqua have somewhat fragrant flowers. C. reticulata does equally well in Florida. It ia very distinct in foliage from the two former species which have glossy leaves, while the leaves of C. reticulata are dull green. All the camellias are extremely slow growers if not carefully cultivated and fertilized. A mulch of old cow-manure, now and then a little commercial fertilizer, and thorough watering during the dry season several times a week start the bushes into a vigorous and healthy growth. They are so extremely beautiful when in flower that all the care given them is well repaid. (H. Nehrling.)
 
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C. axillaris, Roxbg.―Gordonia anomala.—C. cuspidata, Hort.=Thea cuspidata.—C. drupifera. Lour. Shrub, to 8 ft.: lvs. elliptic, long-acuminate: fls. 1½ in- wide, fragrant, white, petals obovate. Himalayas, India. L.B.C. 19:1815.—C. euryoides, Lindl. =Thea euryoides.—C. euryoides, Hort.=Thea maliflora.—C. hongkongensis. Seem. (Thea hongkongensis, Pierre). Tree with glabrous branches: lvs. ovate-lanceolate to lanceolate, indistinctly serrate, lustrous above, coriaceous, 3—4 in. long: fls. red, 2 in. across; petals slightly emarginate; ovary pubescent. Hongkong. Trans. Linn, Soc. 22:60.—C. maliflora, Lindl. =Thea maliflora. — C. rosiflora, Hook.=Thea maliflora.—C. sinensis, Kuntze=Thea sinensis.—C. spectabilis, Champ.=Tutcheria spectabilis.—C. Thea, Link=Thea sinensis. Alfred Rehder.
 
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Revision as of 16:35, 22 May 2009


Read about Camellia in the Standard Cyclopedia of Horticulture 

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The above text is from the Standard Cyclopedia of Horticulture. It may be out of date, but still contains valuable and interesting information which can be incorporated into the remainder of the article. Click on "Collapse" in the header to hide this text.


Template:Alternateuses

Camellia bush
Camellia japonica
Camellia japonica
Plant Info
Scientific classification
Kingdom: Plantae
Division: Magnoliophyta
Class: Magnoliopsida
Order: Ericales
Family: Theaceae
Genus: Camellia
L.

Species
About 100–250 species, including:

Camellia assimilis
Camellia azalea
Camellia brevistyla
Camellia caudata
Camellia chekiangoleosa
Camellia chrysantha – Golden Camellia
Camellia connata
Camellia crapnelliana
Camellia cuspidata
Camellia euphlebia
Camellia euryoides
Camellia forrestii
Camellia fraterna
Camellia furfuracea
Camellia granthamiana
Camellia grijsii
Camellia hongkongensis - Hong Kong Camellia
Camellia irrawadiensis
Camellia japonica – Japanese Camellia
Camellia kissii
Camellia lutchuensis
Camellia miyagii
Camellia nitidissima - Camellia chrysantha, Yellow Camellia
Camellia nokoensis
Camellia oleifera - Tea Oil Camellia, Oil-seed Camellia
Camellia parviflora
Camellia pitardii
Camellia polyodonta
Camellia reticulata
Camellia rosiflora
Camellia rusticana – Snow Camellia
Camellia salicifolia
Camellia saluenensis
Camellia sasanqua – Christmas Camellia
Camellia semiserrata
Camellia sinensis – Tea
Camellia taliensis
Camellia transnokoensis
Camellia tsaii
Camellia vietnamensis
Camellia yunnanensis

Camellia (Template:Zh-cp) is a genus of flowering plants in the family Theaceae, native to eastern and southern Asia from the Himalaya east to Japan and Indonesia. There are 100–250 existent species, with some controversy over the exact number. The genus was named by Linnaeus after Jesuit botanist Georg Joseph Kamel.

Leaves of Camellia sinensis, also known as the tea plant

They are evergreen shrubs and small trees 2–20 m tall. The leaves are alternately arranged, simple, thick, serrated, usually glossy, and 3–17 cm long. The flowers are large and conspicuous, 1–12 cm diameter, with (in natural conditions) 5–9 petals; colour varies from white to pink and red, and yellow in a few species. The fruit is a dry capsule, sometimes subdivided into up to 5 compartments, each compartment containing up to 8 seeds.

The genus is generally adapted to acidic soils, and does not grow well on chalk or other calcium-rich soils. Most species also have a high rainfall requirement and will not tolerate drought. Some Camellias have been known to grow without much rainfall.

Camellia species are used as food plants by the larvae of a number of Lepidoptera species. See List of Lepidoptera which feed on Camellia.

Cultivation and uses

Camellia sinensis is of major commercial importance because tea is made from its leaves. Tea oil is a sweet seasoning and cooking oil made by pressing the seeds of Camellia sinensis or Camellia oleifera.

Many other camellias are grown as ornamental plants for their flowers; about 3,000 cultivars and hybrids have been selected, many with double flowers. Camellia japonica (often simply called Camellia) is the most prominent species in cultivation, with over 2,000 named cultivars; next are C. reticulata, with over 400 named cultivars, and C. sasanqua, with over 300 named cultivars. Popular hybrids include C. × hiemalis (C. japonica × C. sasanqua) and C. × williamsii (C. japonica × C. salouenensis). They are highly valued in Japan and elsewhere for their very early flowering, often among the first flowers to appear in the late winter. Late frosts can damage the flowers.

PF1022A, a metabolite of Mycelia sterile, a fungus that inhabits the leaves of Camellia japonica is chemically altered to synthesise emodepside, an anthelmintic drug.

Camellias have a slow growth rate. Typically they will grow about 30 centimetres a year until mature although this varies depending on variety and location.

Template:Commons

As a favourite flower

Places

Camellia japonica is the state flower of Alabama as well as the city flower of Slidell, Louisiana, the Chinese municipality Chongqing and of Matsue City in Shimane Prefecture, Japan.

People

External links