二歧

Flowers numerous, bisexual, small, borne in dichasial cymes, corymbs, or panicles, sometimes aggregated into capitula; bracts usually scarious, rarely leaflike.

花多数，两性，小，生于二歧聚伞花序，伞房花序，或圆锥花序，有时聚生成头状；苞片通常干膜质，很少叶状。

Dichotomous data on adverse effects were combined using classic methods of meta-analysis.

比较。副作用二歧数据用经典的Meta分析法分析。

Herbs, annual or perennial. Stem sometimes woody at base, simple or dichotomously branched.

一年生或多年生草本茎有时在基部木质化，简单或二歧分枝。

Male flowers in dichotomously branched cymes; leaf blade often lanceolate.

在二歧分枝聚伞花序里的雄花；叶片通常披针形。

Cymes many, axillary or clustered; peduncle up to 4 cm, usually 1-3 × dichotomously branched with many flowers; pedicel short, less than ca.

聚伞花序很多，腋生或者被丛生；花序梗可达4厘米，通常 1-3 *二歧与多花的分开；花梗短少于，大约5毫米。

Cymes mainly on branched axis, 3 or 4 × dichotomously branched, branches slender and patent; peduncle 1-2 cm, secondary peduncle 5-15 mm; pedicels very short, less than ca. 3 mm or absent.

聚伞花序主要在分枝的轴上，3或者4二歧分枝，分枝纤细和开展；花序梗1-2厘米，副花梗5-15毫米；非常短的花梗，少于长约3毫米或无。

The discovery of dichotomously bifurcated fronds of Gigantonoclea from the late Early Permian Tongtseyan Formation in Fujian Province is thus a matter of vital importance, for it brings a much closer relationship between the Asian and the American gigantopterids, although there are still many substantial differences between them.

因之，二歧分叉蕨叶在中国的发现具有十分重要的意义，它使东亚与北美大羽羊齿植物之间的关系变得更为密切，虽然其间仍存在不少实质性的差异。

Stem finely striate, dichotomously branched above.

茎细条纹，二歧的上面分枝。

Flowering stems not or not obviously dichotomously branched; if pedicels of fallen flowers persistent and exserted, then outer perianth segments crested.

花茎并非或并非明显二歧的分枝；如果脱落花的花梗宿存和外露，然后外部花被片达到顶点。

Basal leaf 1, palmatisect, veins dichotomously branched, not anastomosing; staminodes present

基部的叶1，掌状全裂，脉二歧的分枝，不网结；存在的退化雄蕊 31 Kingdonia 独叶草属

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。