A comparative study of the development of the sporophyte in the Anthocerotaceae, with especial reference to the genus Anthoceros.
A comparative study of the development of the sporophyte in the Anthocerotaceae, with especial reference to the genus Anthoceros.
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DOI：
10.1093/oxfordjournals.aob.a090123
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发表时间：
1928-04-01
期刊：
影响因子：
4.2
通讯作者：
Bartlett, EM
中科院分区：
文献类型：
--
作者：
Bartlett, EM
在已知的100多个花色科植物中，很少有人进行过形态学研究。在现有的12个物种中，有8个在这个意义上是新的[长破折号]，都是热带的，收集在广泛分离的地区。对本地（加州）物种和外来物质的所有观察都倾向于表明，某些结构特征几乎不受环境变化的影响，这些结构以及其他结构，毫无疑问地证明了分类学家将Anthoceros属分为黑色和黄色孢子群是完全自然的。被认为具有诊断意义的要点是：（1）孢子颜色，（2）配子体中的陷窝，（3）造孢层，（4）叶绿体的结构和分布，以及诸如开裂方式、孢子形态、精子器数目等附加的、也许不那么具有决定性的特征。hallii，一种罕见的太平洋海岸形式;孢子体与Notothyles或Megaceros的共同点比作者已知的任何其他Anthoceros的共同点要多得多，同时，显然是A的非常近亲。pearsoni，另一种黄色孢子的物种。
Very few of the hundred or more known Anthocerotaceae have been studied morphologically. Of the 12 species available, 8 were new in this sense[long dash]all troplcal and collected in widely separated regions. All observations made on the local (California) species and on the foreign material tended to show that certain structural features are little affected by environmental changes and that these, as well as other structures, unquestionably prove that the taxonomist''s division of the genus Anthoceros into a black- and a yellow-spored group is an entirely natural one. Points considered diagnostic are (1) spore color, (2) lacunae in the gametophyte, (3) the sporogenous layer, (4) structure and distribution of chloroplasts, with such additional and perhaps less decisive features as method of dehiscence, form of spore, antheridial number, etc. Many features unusual in Anthoceros were noted in A. hallii, a rare Pacific coast form; the sporophyte has many more points in common with that of Notothyles or of Megaceros than has that of any other Anthoceros known to the writer and is, at the same time, obviously a very close relative of A. pearsoni, another yellow-spored species.