英语词汇“pteridosperm”的意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

是什么意思

种子蕨；

英英释义

pteridosperm

n.an extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae)
同义词：seed fern

学习怎么用

权威例句

TETRAXYLOPTERIS SCHMIDTII GEN. ET SP. NOV., A PROBABLE PTERIDOSPERM PRECURSOR FROM THE DEVONIAN OF NEW YORK
A contribution to the knowledge of the pteridosperm genera Pseudomariopteris Danzé-Corsin nov. emend. and Helenopteris nov. gen.
A probable pteridosperm from the uppermost Devonian near Ballyheigue, Co. Kerry, Ireland
The chemical composition of Upper Carboniferous pteridosperm cuticles
Systematics of the Late Carboniferous Medullosalean Pteridosperm Laveineopteris and Its Associated Cyclopteris Leaves
Some Pteridosperm Stems and Fructifications with Particular Reference to the Medullosae
An improved method for obtaining large pteridosperm cuticles
Reconstruction of the frond of Laceya hibernica , a Lyginopterid pteridosperm from the uppermost Devonian of Ireland
Revision of the pteridosperm foliage Alethopteris and Lonchopteridium (Upper Carboniferous), Sydney Coalfield, Nova Scotia, Canada
A new pteridosperm from Upper Pennsylvanian deposits of North America

单词	pteridosperm
释义	pteridosperm 听听怎么读英 ['(p)ter?d??sp?:m] 美 ['ter?do??sp?m] 是什么意思 n. 种子蕨；英英释义 pteridosperm n.an extinct seed-producing fernlike plant of the order Cycadofilicales (or group Pteridospermae) 同义词：seed fern 学习怎么用权威例句 TETRAXYLOPTERIS SCHMIDTII GEN. ET SP. NOV., A PROBABLE PTERIDOSPERM PRECURSOR FROM THE DEVONIAN OF NEW YORK A contribution to the knowledge of the pteridosperm genera Pseudomariopteris Danzé-Corsin nov. emend. and Helenopteris nov. gen. A probable pteridosperm from the uppermost Devonian near Ballyheigue, Co. Kerry, Ireland The chemical composition of Upper Carboniferous pteridosperm cuticles Systematics of the Late Carboniferous Medullosalean Pteridosperm Laveineopteris and Its Associated Cyclopteris Leaves Some Pteridosperm Stems and Fructifications with Particular Reference to the Medullosae An improved method for obtaining large pteridosperm cuticles Reconstruction of the frond of Laceya hibernica , a Lyginopterid pteridosperm from the uppermost Devonian of Ireland Revision of the pteridosperm foliage Alethopteris and Lonchopteridium (Upper Carboniferous), Sydney Coalfield, Nova Scotia, Canada A new pteridosperm from Upper Pennsylvanian deposits of North America
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