胚叶

Seeds 1-12, smooth or occasionally furrowed, albuminous or exalbuminous, sometimes winged, wing membranous, basal, exarillate or aril basal to completely enveloping seed, aril membranous, fleshy, rarely mucilaginous; cotyledons flat, foliaceous or thick, connate, germination epigeous.

种子1-12，光滑或者偶尔有皱，具胚乳或无胚乳，有时具翅，翅膜质，基生，无假种皮或有假种皮，假种皮基生或完全包围种子，膜质、肉质，很少有粘液子叶平，叶状或者厚，合生，发芽时出土。2n = 8，12，14。

The morphology of M2 and M3 was observed in hothouse and mutants on cotyledon and root of seedling, or embryo of seed were identified. The result showed that there were 8 types of mutative treats on cotyledon, including light-yellow cotyledon, yellowish cotyledon, trump-shaped cotyledon, multilobed cotyledon, non-cotyledon, single-cotyledon, tricotyledon and quadrcotyledon.

M_2和M_3的水培和形态学观察的结果发现，子叶性状出现浅色、黄化、喇叭形、多耳突、无子叶、单子叶、三子叶、四子叶等8种变异类型；根系性状出现短小根、发达根、无侧根和弱向地性等4种变异类型；种胚性状中发现了多胚变异。

Plumule The shoot apex and first rudimentary leaves in the mature embryo and the seedling .

胚芽：在成熟胚和幼苗中，枝的顶端长出的第一片未发育的叶。

And Cucumis sativus L. were tested by bioassay-guided separation. The extracts from P. tomentosa flower with ethanol were extracted with petroleum ether, ethyl acetate and n-butanol. The inhibition rate of the ethyl acetate extract to growth of the 3 kinds of plant radicel were 99.89%, 63.53% and 32.74% respectively at 0.5 mg/mL concentration, and that of petroleum ether were 76.30%, 56.17% and 23.36%.

绒叶泡桐Paulownia tomentosa花乙醇提取物依次用石油醚、乙酸乙酯、正丁醇和水萃取后进行活性测定，结果表明，石油醚萃取物在浓度为0.5mg/mL时，对反枝苋、生菜和黄瓜种子胚根生长的抑制率分别为76.30%、56.17%和23.36%；乙酸乙酯萃取物在浓度为0.5mg/mL时，对反枝苋、生菜和黄瓜种子胚根生长的抑制率分别为99.89%、63.53%和32.74%。

Firstly, it is found that there are many obvious differences between Acorus and Araceae. Their differences are based on many aspects which include characteristics of morphology, anatomy and epidermis of leaf, types of tapetum in anther walls , patterns of endothecial thickenings, and ways of development of endosperms, presence or absence of perisperm, components of photochemistry, and sequences of rbcL.

研究表明：1。菖蒲属与天南星科其它属在叶的形态、结构、表面特征，花药绒毡层类型，药室内壁增厚的特点，胚乳的发育方式，外胚乳的有无，植物化学成分，rbcL基因序列等多方面存在着显著的差异。

Fruit juicy or dry, naked, scaly, hairy, bristly, or spiny, indehiscent or dehiscent, when juicy then pulp derived from often deliquescent funicles. Seeds usually numerous, often arillate or strophiolate; embryo curved or rarely straight; endosperm present or absent; cotyledons reduced or vestigial, rarely leaflike.

果多汁或干燥，裸露，有鳞片，有毛，具刚毛，或者具刺，不裂或开裂，种子通常多数，通常具假种皮或具种阜；胚弯曲或很少直；胚乳提出或无；子叶退化或者残留，很少叶状。

Embryo with cotyledons much smaller than the hypocotyl; leaves small, often ericoid.

胚具子叶很多小于下胚轴；叶小，通常。 4 Baeckea 岗松属

Among different organ explants from ginger lily, only sheaths and leaves cultured in VW medium containing 5mg/l 2, 4-D、0.5mg/l BA、3% sucrose and 200ml/l coconut water for 3 months could be induced to form embryogenic callus. It could produce lots of germinated or ungerminated somatic embryos per culture directly from the surface of calli after culture in MS medium containing 4mg/l BA and 0.05mg/l NAA. The shoots could develop into intact plants with vigorous appearance after 2 months in culture.

叶鞘及叶培植体在含5 mg/l 2，4-D，0.5 mg/1 BA、3%蔗糖及200 ml/1椰子水的VW固体培养基中，经3个月，可诱导产生具体胚分化能力之愈合组织；并於含4 ms/l BA及0.05 ms/l NAA之MS培养基中，直接由此愈合组织的表面产生数个至数十个数目不等之体胚，2个月后可形成一完整植株。

So acertain concentration of auxins is important to the induction of embryonic callus, and cytokinins are cooperative in the process of somatic embryo genesis and embryoid growth.

因此，一定浓度的生长素是诱导紫叶酢浆草胚性愈伤组织的关键因素，细胞分裂素在体细胞胚的发生和发育过程中起增效作用。

So a certain concentration of auxins was important to the induction of embryonic callus. Cytokinins were cooperative in the process of somatic embryo genesis and embryoid growth.

因此，一定浓度的生长素是诱导紫叶酢浆草胚性愈伤组织的关键因素，细胞分裂素在体细胞胚的发生和发育过程中起增效作用。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。