无萼片的

Flowers small to medium-sized, bracteate and often bracteolate, bisexual or unisexual, actinomorphic or rarely zygomorphic, hypogynous to epigynous, floral cup shallow to urn-shaped, sometimes absent; sepals 4 or 5(–10), sometimes absent, imbricate, usually persistent; petals absent or 4 or 5, yellow, white, greenish or red, often ribbonlike and circinate in bud, caducous; stamens 4, 5, or many, free, rarely arranged in 2 whorls with the inner whorl staminodal, development of polyandrous androecia centripetal or centrifugal; anthers basifixed, thecae mostly bisporangiate, each opening by two valves or a simple longitudinal slit, or monosporangiate and opening by a single valve (Exbucklandia, Hamamelis and the genera of the S hemisphere), connective protruding; disk scales sometimes present between stamens and carpels.

花小对中型，具苞片和通常，萼片4或5(-10)，有时无，覆瓦状，通常宿存；花瓣无或者4-5，黄色，白色，带绿色或者红，通常在芽期带状的并且拳卷，早落；雄蕊4，5，或者很多，离生，很少2轮生并且退化雄蕊内部轮生，多雄蕊的雄蕊群向心或离花药基着大多为的囊bisporangiate，以二裂爿或一单纵裂缝每开阔的，花盘鳞片有时片在雄蕊和心皮之间存在。

Female flowers 1-3 per bract, often sessile; bracts often dentate or lobed, accrescent in fruit; sepals 3-5, shortly connate, imbricate; ovary (2 or)3-locular; styles mostly free, laciniate.

雌花1-3 每苞片，通常是无梗；苞片经常具牙齿的或浅裂，在果期增大；萼片3-5，短，覆瓦状；子房2(或3)室；花柱多数离生，条裂。

Sepals 6.6-7.8 mm, mucro 1.6-2.5 mm, ratio of mucro/sepal length = 0.22-0.37, outside with 0.1-1.2 mm antrorse to patent nonglandular trichomes, inside glabrous.

萼片6.6-7.8毫米，短尖头1.6-2.5毫米，短尖头/萼片长度比率=0.22-0.37，外面具0.1-1.2毫米向前到开展的非腺毛，里面无毛。

Sepals 5-6.5 mm, mucro 1.5-2 mm, ratio of mucro/sepal length = ca. 0.3, outside with 0.1-0.6 mm antrorse to patent nonglandular trichomes and 0.2-0.5 mm patent glandular trichomes, inside glabrous.

萼片5-6.5毫米，短尖头1.5-2毫米，短尖头/萼片长度的比率=约0.3，外面有0.1-0.6毫米向上到开展的非腺状毛和0.2-0.5毫米开展的腺毛，内面无毛。

Sepals 8.4-10.8 mm, mucro 0.8-2.2 mm, ratio of mucro/sepal length = 0.09-0.22, outside with 0.3-1.4 mm antrorse ± appressed nonglandular trichomes and purplish 0.3-1.1 mm patent glandular trichomes, inside glabrous.

萼片8.4-10.8毫米，短尖头0.8-2.2毫米，短尖头/萼片长度比率=0.12-0.31，外面具0.4-1.2毫米多少开展的非腺状毛和有时具0.2-0.6毫米开展的具腺毛，里面无毛。

A segment of a perianth which is not differentiated into calyx and corolla; a sepal or petal.

花被片 Tepal 无花萼和花冠之分的花被片；萼片或花瓣。

Petals alternisepalous,(2-)4, absent in female flowers of some Myriophyllum , imbricate, longer than sepals, often deciduous with stamens.

花瓣与萼片互生，(2-)4，但是Myriophyllum的一些种类雌花无花瓣，花瓣覆瓦状排列，比萼片长，通常与雄蕊一起脱落。

Sepals and petals 5, persistent after anthesis, sepals free, entire or rarely glandular-ciliate, petals entire or glandular-ciliate, apiculus absent.

萼片和花瓣5，宿存在花后，萼片离生，全缘或很少具腺具缘毛的，花瓣全缘或具腺具缘毛，细尖无。

Female flowers at base of inflorescences, larger than male ones, each bract-axil with only 1 female flower; pedicel short but distinct; calyx, rarely 2-sepaled, slightly fused at base; petals and disk absent; ovary 2-celled; ovules 1 per cell, smooth; styles short; stigmas 2, revolute, entire, eglandular.

雌花在花序的基部，比雄花大，每苞片腋只具1雌花；花梗短但是明显；花萼，很少2萼片，稍在基部愈合；花瓣和花盘无；子房2室；胚珠1 每室，平滑；花柱短柱头2，外卷，全缘，无腺体。

Bracteoles and sepals outside glabrous, inside velutinous; ovary glabrous; capsule pericarp smooth.

无毛的小苞片和萼片外面，里面短绒毛；子房无毛蒴果果皮平滑。

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。