...This is probably due to the extinction of species or genera with intermediate characteristics between extant genera. Also, the distribution is isolated, with the following species: Athrotaxis (Tasmania), Cunninghamia (Southern China, Taiwan), Glyptostrobus (Southeastern China), Metasequoia (Central China), Sequoia (Western North America), Sequoiadendron (Western North America), Taiwania (Southwestern China, Taiwan), Cryptomeria (Japan and Southeast China), and Taxodium (Southeastern North America, Mexico) (Figure). Tasmanian cedar has many seed scales on the bract scales, while Taiwan cedar has degenerated and lost the seed scales, and the ovules are on the bract scales. ... *Some of the terminology that mentions "Athrotaxis" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…これは現生の属の中間的形質をもった種や属が絶滅したためと思われる。また分布も,タスマニアスギ属Athrotaxis(タスマニア),コウヨウザン属Cunninghamia(中国南部,台湾),スイショウ属Glyptostrobus(中国南東部),メタセコイア属Metasequoia(中国中部),セコイアSequoia(北アメリカ西部),セコイアオスギSequoiadendron(北アメリカ西部),タイワンスギ属Taiwania(中国南西部,台湾),スギ属Cryptomeria(日本と中国南東部),ヌマスギ属Taxodium(北アメリカ南東部,メキシコ)と,それぞれ隔離的に分布している(図)。タスマニアスギは包鱗上に多数の種鱗があり,タイワンスギでは種鱗が退化消失し,胚珠は包鱗上についている。… ※「Athrotaxis」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
<<: Athyrium brevifrons (English spelling) Athyrium brevifrons
A domestic dog originating from Germany. A descend...
Brazilian architect. Born in Rio de Janeiro, Braz...
A type of footwear. It is a type of sandal with l...
A deciduous tall tree of the legume family (APG c...
In 1335 (Kenmu 2), Tokiyuki, the surviving son of...
Year of death: Chungryeong 26.8.16 (1300.9.29) Yea...
In 66 he was hired as the commander-in-chief of t...
In a broader sense, it refers to industries relat...
A general term for animals that live as parasites ...
A type of customs duty imposed from the mid-Kamaku...
…His pen names were Toyotei, Shukodo, and Tatsumi...
This mine was located in Niki Town, under the jur...
〘 noun 〙 A mountain with red bare soil, where the ...
A structure built across a river to prevent flood...
…It is located on the south bank of the Yoshino R...