叶状体状

Macrocystis and Nereocystis and is distinguished by its heteromorphic ALTERNATION OF GENERATIONS in which a large sporophyte alternates with a microscopic gametophyte, and in which growth takes place in a special meristem region on the surface of the thallus.

在这类植物的生活史中，孢子体比配子体小。配子体是由叶状体表面特殊的分生组织区发育而来的。

Leaves opposite; stipules often persistent, interpetiolar, lateral, free or connate; leaf blade 3-5(-7)-veined, margin dentate or incised-lobed; cystoliths often punctiform, sometimes short botuliform.

叶对生 托叶通常宿存，叶柄间，横向，离生或合生；叶片3-5(-7)脉，有叶边缘具牙齿或锐裂；钟乳体经常点状，有时短香肠状。

After 13 months culture, sporophytes began to form. Each gametophyte had several archegonia, and only one sporophyte was produced per gametophyte. The first sporophyte frond was simple and had pinnate venation.

抱子体在经13个月的培养后开始产生，每个配子体虽然有许多的藏卵器，但只产生一株孢子体，第一片孢子体的叶片为单叶羽状脉。

Toppling failure always occurs in anaclinal slopes of layered rock mass, such as thin-bedded sedimentary rocks, foliated metamorphic rocks and those of one single joint set.

倾倒破坏通常发生於层状岩体之逆向坡，如薄层沉积岩、叶理状变质岩及其它含有单组节理之岩石。

RT-PCR analysis showed that GhMADS1 gene expressed in petals, stamens, ovules and fibers, but not in roots, stems, leaves, bracts and sepals. The strongest expression of GhMADS1 gene was detected in petals. But in floral buds of a cotton homeotic mutant (CHV1), whose floral organs are all converted to bract leaf-like organs, the transcript of GhMADS1 gene was not detected.

RT-PCR分析显示，该基因在陆地棉的花瓣、雄蕊、胚珠和纤维中表达，特别是在花瓣中表达量最高，而在根、茎、叶等营养器官和棉花同源异型突变体CHV1（所有花器官均变为苞叶状叶性器官）的变异花蕾中不表达。

RT-PCR analysis showed the GhMASD1 gene expressed in petals, stamens, ovules and fibers, but not in roots,stems, leaves, bracts and sepals. The strongest expression of GhMADS1 gene was detected in petals. But in floral buds of a cotton homeotic mutant (CHV1), whose floral orgens are all converted to bract leaf-like organs, the transcript of GhMADS1 gene was not detected.

RT-PCR分析显示，该基因在陆地棉的花瓣、雄蕊、胚珠和纤维中表达，特别是在花瓣中表达量最高，而在根、茎、叶等营养器官和棉花同源异型突变体CHV1（所有花器官均变为苞叶状叶性器官）的变异花蕾中不表达。

Leaves alternate, petiolate; stipules caducous, intrapetiolar, connate, often broad, foliaceous; leaf blade 3-veined, margin dentate or lobed; cystoliths punctiform.

叶互生，具叶柄；托叶早落，叶柄内，合生，经常宽，叶状；3脉的叶片，浅裂的边缘具牙齿或；钟乳体点状。

Leaves alternate, spiral, petiolate; stipules deciduous, intrapetiolar, completely connate, leathery, often large, apex entire; leaf blade leathery or papery, pinnately veined, rarely 3-5-veined, margin entire, undulate, or crenulate; cystoliths punctiform.

叶互生，螺旋形，具叶柄；落叶的托叶，叶柄内，完全合生，似皮革，经常大，先端全缘；叶片革质或纸质，成羽状脉，很少3-5脉，边缘全缘，波状，或具细圆齿；钟乳体点状。

Leaves alternate, petiolate; stipules deciduous, intrapetiolar, incompletely connate, apex 2-cleft; leaf blade papery, pinnately veined or 3-veined, margin often coarsely dentate or serrate, rarely entire; cystoliths punctiform or botuliform.

叶互生，具叶柄；托叶脱落，叶柄内，不完全合生，顶2半裂；纸质的叶片，成羽状脉或3脉的，边缘通常粗牙齿或有锯齿，很少全缘；钟乳体点状或者香肠状。

Methods Since 1993,314 cases of 364 cone-screw-typed and bl ade-typed implants used CDIC pured Titanium were analysed.

总结自93年以来用CDIC钝钛锥状螺旋和叶状种植体修复的314例364枚种植体。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。