Cephalotaxaceae (lat. Cephalotaxaceae) iynəyarpaqlılar dəstəsinə aid bitki fəsiləsi.
Amentotaxus
Cephalotaxus
Torreya
_at_Bhandakthathaatch_(8000_ft)_I_IMG_7363.jpg){kind=small}
İynəyarpaqlılar ilə əlaqədar bu məqalə qaralama halındadır. Məqaləni redaktə edərək Vikipediyanı zənginləşdirin. Etdiyiniz redaktələri mənbə və istinadlarla əsaslandırmağı unutmayın.
Cephalotaxaceae (lat. Cephalotaxaceae) iynəyarpaqlılar dəstəsinə aid bitki fəsiləsi.
Blommetaks-familien (Cephalotaxaceae) er en lille familie med tre slægter, der står Taks-familien nær. Den olivenagtige (eller altså: blommeagtige) frugt modner dog først efter to år.
Slægter
Cephalotaxaceae is a small grouping of conifers, that included one to three genera closely allied to Taxaceae. However, members of Cephalotaxaceae are now included in Taxaceae by botanists, instead of as a distinct family, based on phylogenetic evidence and close morphological similarities between them.[1][2][3][4][5] Included species were restricted to east Asia, except for two species of Torreya found in the southwest and southeast of the United States; fossil evidence shows a much wider prehistorical Northern Hemisphere distribution. The most notable differences between Taxaceae and Cephalotaxaceae concerned the cone aril, which fully encloses the seeds of Cephalotaxaceae, the longer maturation of Cephalotaxaceae seeds and the larger size of the mature seeds.
When considered as a distinct family, members of Cephalotaxaceae are much branched, small trees and shrubs. The leaves are evergreen, spirally arranged, often twisted at the base to appear biranked. They are linear to lanceolate, and have pale green or white stomatal bands on the undersides. The plants are monoecious, subdioecious, or dioecious. The male cones are 4–25 mm long, and shed pollen in the early spring. The female cones are reduced, with one to a few ovuliferous scales, and one seed on each ovuliferous scale. As the seed matures, the ovuliferous scale develops into a fleshy aril fully enclosing the seed. The mature aril is thin, green, purple or red, soft and resinous. Each ovuliferous scale remains discrete, so the cone develops into a short stem with one to a few berry-like seeds. They are probably eaten by birds or other animals which then disperse the hard seed undamaged in their droppings, but seed dispersal mechanisms in the family are not yet well researched.
Cephalotaxaceae is a small grouping of conifers, that included one to three genera closely allied to Taxaceae. However, members of Cephalotaxaceae are now included in Taxaceae by botanists, instead of as a distinct family, based on phylogenetic evidence and close morphological similarities between them. Included species were restricted to east Asia, except for two species of Torreya found in the southwest and southeast of the United States; fossil evidence shows a much wider prehistorical Northern Hemisphere distribution. The most notable differences between Taxaceae and Cephalotaxaceae concerned the cone aril, which fully encloses the seeds of Cephalotaxaceae, the longer maturation of Cephalotaxaceae seeds and the larger size of the mature seeds.
When considered as a distinct family, members of Cephalotaxaceae are much branched, small trees and shrubs. The leaves are evergreen, spirally arranged, often twisted at the base to appear biranked. They are linear to lanceolate, and have pale green or white stomatal bands on the undersides. The plants are monoecious, subdioecious, or dioecious. The male cones are 4–25 mm long, and shed pollen in the early spring. The female cones are reduced, with one to a few ovuliferous scales, and one seed on each ovuliferous scale. As the seed matures, the ovuliferous scale develops into a fleshy aril fully enclosing the seed. The mature aril is thin, green, purple or red, soft and resinous. Each ovuliferous scale remains discrete, so the cone develops into a short stem with one to a few berry-like seeds. They are probably eaten by birds or other animals which then disperse the hard seed undamaged in their droppings, but seed dispersal mechanisms in the family are not yet well researched.
Cephalotaxaceae, son una familia del Orden Pinales. Esta pequeña familia de coníferas, con alrededor de 20 especies, se encuentra relacionada con la familia Taxaceae, e incluidas en esa familia por algunos botánicos. Están restringidas al este de Asia, excepto en lo que se refiere a dos especies de Torreya que se encuentran en el suroeste y sudeste de los Estados Unidos; la evidencia fósil muestra una distribución mucho más amplia en el Hemisferio norte prehistórico. Las diferencias entre las dos familias son las siguientes:
* Hasta 25 mm en Austrotaxus
Se trata de arbustos o pequeños árboles con muchas ramas. Las hojas son perennes, dispuestas en espiral, a menudo retorcidas en la base para aparecer en dos filas. Son lineales a lanceoladas, y tienen bandas estomatales de color verde claro o blancas por el envés. Las plantas son monoicas, subdioicas o dioicas. Los estróbilos masculinos tienen 4-25 mm de largo, y lanzan el polen a principios de la primavera. Los conos femeninos son reducidos, con una a unas pocas escamas ovulíferas, y una semilla en cada escama ovulífera. Conforme la semilla madura, la escama ovulífera se desarrolla en un arilo carnoso que rodea por completo a la semilla. El arilo maduro es delgado, verde, púrpura o rojo, suave y resinoso. Cada escama ovulífera permanece discreto, de manera que el cono se desarrolla como una rama corta con una a varias semillas de bayas. Son probablemente comidas por las aves y otros animales que luego dispersan la semilla dura sin lesionar en sus deposiciones, pero los mecanismos de dispersión de semillas en la familia no están todavía bien investigados.
Peajugapuulised (Cephalotaxaceae) on igihaljaste okaspuude sugukond okaspuulaadsete seltsist.
Peajugapuuliste sugukonda kuulub kolm perekonda ja umbes 20 liiki. Mõnikord arvatakse peajugapuulised jugapuuliste sugukonda.
Sugukonda kuuluvad tugevalt hargnevad väikesekasvulised puud ja põõsad, mis kasvavad valdavalt Ida-Aasias; üksnes kaht pähkeljugapuu liiki on leitud ka Põhja-Ameerikast.
Peajugapuulised (Cephalotaxaceae) on igihaljaste okaspuude sugukond okaspuulaadsete seltsist.
Peajugapuuliste sugukonda kuulub kolm perekonda ja umbes 20 liiki. Mõnikord arvatakse peajugapuulised jugapuuliste sugukonda.
Sugukonda kuuluvad tugevalt hargnevad väikesekasvulised puud ja põõsad, mis kasvavad valdavalt Ida-Aasias; üksnes kaht pähkeljugapuu liiki on leitud ka Põhja-Ameerikast.
La famille des Céphalotaxacées regroupe des plantes pinophytes (ou conifères) ; elle comprend 20 espèces réparties en 3 genres, parfois inclus dans les Taxacées :
La famille des Céphalotaxacées regroupe des plantes pinophytes (ou conifères) ; elle comprend 20 espèces réparties en 3 genres, parfois inclus dans les Taxacées :
Amentotaxus (parfois inclus dans les Taxaceae) Cephalotaxus Siebold et Zucc. ex Endl. Torreya Arn. (parfois inclus dans les Taxaceae)Cephalotaxaceae é uma pequena família de coníferas, constituida por três géneros e 20 espécies. São próximas da família Taxaceae e alguns taxonomistas chegam mesmo a incluí-las nela.
Estão restritas à Ásia oriental, com excepção de 2 espécies do género Torreya, encontradas nos EUA.[1]
Cephalotaxaceae é uma pequena família de coníferas, constituida por três géneros e 20 espécies. São próximas da família Taxaceae e alguns taxonomistas chegam mesmo a incluí-las nela.
Estão restritas à Ásia oriental, com excepção de 2 espécies do género Torreya, encontradas nos EUA.
개비자나무과(-榧子--科, 학명: Cephalotaxaceae 케팔로탁사케아이[*])는 과거에 인정되었던 과이다. 구과목의 식물로 3속 20종이 포함된다. 주목과(Taxaceae)와 가깝다. 상록관목 또는 교목으로 잎은 가지에 밀생하여 2열로 난 것처럼 보이며 선형이다. 꽃은 암수딴그루이나 드물게 암수한그루인 경우도 있다. 수꽃은 잎겨드랑이에 구형 또는 수상(穗狀)의 구화(毬花) 모양의 꽃차례를 이루며, 수술은 7-12개가 달려 있다. 회사는 짧고, 꽃밥은 3실로 이루어져 있다. 암꽃은 작은 가지의 기부에 달리고, 2개의 밑씨를 가진 여러 쌍의 대포자엽으로 구성된다. 씨는 1-2개로 타원형이며 핵과 모양이다. 육질의 종피와 얇은 목질의 내피를 가졌다.
개비자나무과(-榧子--科, 학명: Cephalotaxaceae 케팔로탁사케아이[*])는 과거에 인정되었던 과이다. 구과목의 식물로 3속 20종이 포함된다. 주목과(Taxaceae)와 가깝다. 상록관목 또는 교목으로 잎은 가지에 밀생하여 2열로 난 것처럼 보이며 선형이다. 꽃은 암수딴그루이나 드물게 암수한그루인 경우도 있다. 수꽃은 잎겨드랑이에 구형 또는 수상(穗狀)의 구화(毬花) 모양의 꽃차례를 이루며, 수술은 7-12개가 달려 있다. 회사는 짧고, 꽃밥은 3실로 이루어져 있다. 암꽃은 작은 가지의 기부에 달리고, 2개의 밑씨를 가진 여러 쌍의 대포자엽으로 구성된다. 씨는 1-2개로 타원형이며 핵과 모양이다. 육질의 종피와 얇은 목질의 내피를 가졌다.
이 문서에는 다음커뮤니케이션(현 카카오)에서 GFDL 또는 CC-SA 라이선스로 배포한 글로벌 세계대백과사전의 내용을 기초로 작성된 글이 포함되어 있습니다. 
