苞

Ovary and capsule ± ellipsoid or, if ovoid-ellipsoid to broadly ovoid, then styles 4-5 mm; uppermost leaf pair bracteose

子房和蒴果多少椭圆形的或，如果卵球状椭圆形的到宽卵形，然后花柱4-5毫米；最上部的叶对多苞片 69

The concrete work include: First, we consult a lot of herbarium specimen from PE, NAS, IFP and XJA etc.; Second, we collect more than 100 species of Brassicaceae from Xinjiang, Jilin and Shandong; Third, we study the phylogeny of Brassicaceae from China to approach some divergence on the tribe, genera and species of Brassicaceae using many ways including morphology, micromorphology and molecular systematics, furthermore, estimate the significance of every index.

2确定了两种模式植物-拟南芥与盐芥的系统学位置和系统学关系，认为两者分别归于拟南芥属和盐芥属，其亲缘关系较远，拟南芥属靠近须弥芥属、荠属、亚麻荠属、旗杆芥属、无苞芥属、糖芥属以及垂果南芥等，而盐芥属靠近山嵛菜属和沟子荠属，对于它们的深入认识，为两种模式植物在进化领域研究物种抗逆适应与趋异分化提供了一个不可多得的比较模式系统，以及更多可供比较的物种，具有重要的应用价值。

Stems creeping and rooting at least below middle; bracts and calyces glabrous; style 5-6 mm

茎匍匐和根至少中间以下；苞片和花萼无毛；花柱5-6毫米 34 Veronica laxissima 极疏花婆婆纳

Rachises, bracts, pedicels, and calyces glandular pilose.

轴，苞，花梗和花萼具腺柔毛。

Inflorescences capitate cymes, 3-7-flowered, subtended by a whorl of 5 or 6 prominent involucral bracts.

头状的花序聚伞花序，3-7花，在以前轮生的5或6突出总苞片。

Twigs distinctly trigonous or with narrow wings; inflorescence 2–3 cm; bract ovate-lanceolate, 5–6 mm, with 1 distinct main vein, distinctly carinate, secondary veins 2 pairs.

清楚的小枝三棱的或具狭窄翅；花序2-3厘米；苞片卵状披针形，5-6毫米，具1离生的主脉，清楚具龙骨状隆起，次脉2 对。

Begonia pulvinifera is similar to B. wangii T. T. Yü, differing in the lower surface of the leaf being pale green; petiole with a reddish brown swollen base; tepals obtuse; tepals of staminate flowers 4; tepals of carpellate flowers 3 and ovary with axile placentation throughout. Begonia pulvinifera also resembles B. cavaleriei Lév., but is distinguishable by the narrower leaf; pulvinate petiole; stipules triangular with apex acuminate or cuspidate; and ovate bracts with apex acute or acuminate.

相似种类有少瓣秋海棠与昌感秋海棠：但本新种叶背面浅绿色，叶柄基部红棕色、膨大，雄花花被片四枚，雌花花被片三枚，花被片先端圆钝，且子房通体具中轴胎座，有别於少瓣秋海棠；此外，新种之托叶三角形，先端渐尖或骤尖，叶身较窄，叶柄基部具叶枕，卵状苞片先端尖或渐尖，明显不同於昌感秋海棠。

Plants distinctly caulescent, stems erect, ascending; bracteoles lanceolate or linear-lanceolate, entire.

清楚具茎的植株，茎直立，上升；小苞片披针形披针形或线形，整个。

A small chafflike bract enclosing the flower of a grass.

热带产的主要是草本的科，叶基生或似苞片，花小。

Objective: To study the chemical constituents of Chondrilla piptocoma .

中文摘要：目的：研究粉苞苣的化学成分。

You need to lie low for a while.

你们得歇手一段时间

If you do, you may just be pleasantly surprised.

如果你开口问了，或许有意想不到的惊喜。