Trema

Trema

:"This article is about the tree. "Trema" is also a diacritic called diaeresis. Trema is also a discarded part in trema removing fractal algorithms."

Taxobox
name = Trema


image_caption = Flowers & leaves at Kolkata, West Bengal, India
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
ordo = Rosales
familia = Cannabaceae
genus = "Trema"
genus_authority = Lour.
subdivision_ranks = Species
subdivision = About 15 species including: "Trema cannabina" "Trema guineensis" "Trema orientalis"



thumb|left|Branches at Kolkata, West Bengal, India


thumb|left|Bark at Kolkata, West Bengal, India

Trema ("Trema") is a genus of about 15 species of evergreen trees closely related to the hackberries ("Celtis"), occurring in subtropical and tropical regions of southern Asia, northern Australasia, Africa and South and Central America. They are generally small trees, reaching 10-20 m tall.

Previously included either in the elm family Ulmaceae or with "Celtis" in the Celtidaceae, genetic analysis by the APG has shown they are best placed in the hemp family Cannabaceae.

The leaves are alternate, simple, 7-15 cm long, ovate-acuminate to lanceolate with a long pointed tip, and evenly serrated margins. The fruit is a small drupe 3-5 mm diameter.

"Trema" species are sometimes used as food plants by the larvae of hepialid moths of the genera "Aenetus", including "A. splendens", which burrow horizontally into the trunk then vertically down, and "Endoclita", including "E. malabaricus".

"Trema orientalis" is widely planted for land reclamation in Southern Asia, valued for its tolerance of poor soils. It is also an invasive species on some Pacific Ocean islands.

Links

List of Southern African indigenous trees

External links

* [http://www.hear.org/pier/species/trema_orientalis.htm Pacific Island Ecosystems at Risk (PIER) page on "Trema orientalis" (with photos)]


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Look at other dictionaries:

  • tréma — tréma …   Dictionnaire des rimes

  • Trema — Pour les articles homonymes, voir Trema (homonymie) …   Wikipédia en Français

  • tréma — [ trema ] n. m. • 1762; points tremaz 1600; gr. trêma « trou, points sur un dé » ♦ Signe formé de deux points juxtaposés que l on met sur les voyelles e, i, u, pour indiquer que la voyelle qui précède doit être prononcée séparément. « Astéroïde » …   Encyclopédie Universelle

  • tremă — TRÉMĂ, treme, s.f. Semn diacritic format din două puncte care se aşază orizontal deasupra unei vocale, în unele limbi, pentru a indica o anumită pronunţare a sunetului respectiv. – Din fr. tréma. Trimis de LauraGellner, 30.06.2004. Sursa: DEX 98… …   Dicționar Român

  • trema — {{/stl 13}}{{stl 8}}rz. ż Ia, CMc. tremamie, blm {{/stl 8}}{{stl 7}} podniecenie połączone z lękiem, obawą, zdenerwowaniem, mające miejsce przed lub w trakcie publicznego wystąpienia, występu, prezentacji swych umiejętności, możliwości, zwykle… …   Langenscheidt Polski wyjaśnień

  • trèma — tremà fr. trema m. tréma [Nota : le mot est, en portugais, normalement féminin > trema] …   Diccionari Personau e Evolutiu

  • trema- — o trema Elemento prefijo o sufijo del gr. «trêma», que significa «abertura», usado en la composición de palabras científicas: ‘monotrema, trematodo’ …   Enciclopedia Universal

  • -trema — o trema Elemento prefijo o sufijo del gr. «trêma», que significa «abertura», usado en la composición de palabras científicas: ‘monotrema, trematodo’ …   Enciclopedia Universal

  • trema — |ê| s. m. 1.  [Gramática] Sinal ortográfico (¨) que se sobre põe a certas vogais, usado em português em derivados de palavras estrangeiras (ex.: mülleriano). [Era usado nos grupos gü e qü, para indicar que a vogal u devia ser lida (ex.:… …   Dicionário da Língua Portuguesa

  • trema — tréma ž DEFINICIJA psih. osjećaj straha, zbunjenost prije javnog nastupanja, poduzimanja kakva nesvakidašnjeg posla i sl. [imati tremu; dobiti tremu] ETIMOLOGIJA njem. Trema ≃ lat. tremere: drhtati ≃ grč. trémō: dršećem …   Hrvatski jezični portal

  • Trema — Trema, 1) (griech. Ant.), Öffnung in der Schiffsseite, um ein Ruder durchzustecken; 2) (Sprachw.), ein Trennungszeichen, bes. im Französischen so v.w. Puncta diaereseos …   Pierer's Universal-Lexikon

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