茎叶植物

In the whole growing stage from infancy to burliness, protein contents in roots, stalks and leaves gradually decline; protein contents in the leaves of glaucum and acuminate increase slightly at the beginning while descend rapidly after growing period.

从营养前期到结实期的整个生长过程中，植物根、茎、叶中的蛋白质含量总体呈逐渐下降的趋势；灰绿藜和绿珠藜叶中的蛋白质含量开始时略有增长，营养后期后迅速下降。

In previous study,the ability of plant resist-drought almost focuses on plant foot,corm and leaf,except seed, especially,large number kinds of plant species is not report.

以往的植物抗旱性研究，多集中在植物成株后的根、茎、叶组织等方面，而对种子的抗旱性研究较少，特别是对批量旱生植物种子，在各种水分条件下的响应方式的研究未见报道。

Ratio of the external leaf surface to its volume was smaller in psammophytes than in mesophytes.

轴器官中普遍具有发达的机械组织，一些植物形成异常结构；根的周皮发达；茎中基本组织／半径比率较大；部分植物形成同化枝，有的茎、叶中存在粘液细胞或结晶。

Any of several plants of the genus Brodiaea having basal grasslike leaves and globose flower heads on leafless stems resembling those of genus Allium.

卜若地属几种植物中的任何一种，具基生草状叶，在类似葱属植物的无叶的茎干上长有球形的头状花序。

Mean leaf area ratio （equal to IMR/SIA） and net assimilation rate were coequally important in determining the response of RGR to nitrogen levels in A.

随氮素的增加，紫茎泽兰的比叶面积降低，飞机草的SIA升高，但在所有氮水平下，前者的SIA都高于后者，紫茎泽兰SIA的变化规律更利于植物适应氮环境。

An observation and analysis of series of characteristics coming from sixteen species belonging to five genera of Polypodiaceae subfam.Polypodioideae were undertaken in order to unravel the phylogenetic relationships within this group.

对水龙骨科水龙骨亚科5属16种植物的孢子形态、叶表皮结构、叶柄和根状茎的横切、根状茎上的鳞片以及叶脉特征进行了详细的观察和分析，探讨了该亚科植物的系统位置和亲缘关系。

The results of observation on the microstructure of Karelinia caspica, Tamarix stromongolica, Salsola collina. Cheno Dodium glaucum, stipa bangenana show that the nutritional organs of these halophytes present some adaptability structures as follows:(1) sunken stomas, thick cuticle and orderly arrangement of epidermal cell;(2) equilateral leaves with developed palisade tissue, or squama-shaped leaf;(3) well-developed water-storing tissue in stems and leaves;(4) crystal cells, salt glands in most of the leaves and assimilating branches.

通过对花花柴、甘蒙怪柳、猪毛菜、灰绿藜、长芒草五种盐生植物显微结构观察，这五种盐生植物营养器官的形态结构均呈现一定的适应性特征：(1)气孔器下陷，角质层加厚，表皮细胞排列紧密而整齐；(2)多为等面叶，叶片栅栏组织发达，或退化为鳞片状，而具同化枝；(3)茎、叶多为肉质化，贮水组织发达；(4)具有含晶细胞，枝叶具盐腺。

For example, the basic angiosperm stem is vertical and elongated, but some cacti have swollen water-storing stems, while other xerophytic plants that have lost their leaves during the course of evolution have evolved flattened leaflike stems for photosynthesis, e.g.

例如被子植物的茎是垂直的，伸长的，但一些仙人掌具有膨大的能够储水的茎，另一些旱生植物在进化的过程中失去了叶子，但又发展为利用扁平叶状的茎来进行光合作用。

The results showed that the calorific values of the test plant species had no unified change pattern, which was possibly related to the partitioning ratio of calorific value in different plant organs and the timing when the reproductive period appeared. In general, spike had a higher calorific value than leaf and stem, and aquatic plants had obviously lower calorific value than mesophytes and wet mesophytes. Within a species, the change pattern of calorific value had certain relations to the phenophase, with approximately two lowest values and two highest values. Among the species, the differences in the calorific value were decided by the nature of the species themselves. Under the same habitat and climatic conditions, the species that contained more materials rich in energy could more easily accumulate calorific, and thus, more adaptable to grow under this environment.

结果表明：各物种的热值动态变化规律并不是统一的，这种变化可能与植物各器官热值的变化及生殖期出现的时间有关；各植物器官的热值普遍表现出穗的热值大于茎和叶；水生植物的热值明显小于中生性和湿中生性植物；种内热值变化随物候期变化有一定的规律，大约会出现2次低值、2次高值；种间热值差异是由于植物本身性质决定的，在相同生境和气候条件下，植物体中含能物质越多，就越易积聚热值，从而更适宜生长在此环境。

They have long, narrow parallel-veined leaves, whorled or alternate, arising at the base of the stem or along it.

百合科植物具有狭长的叶，平行叶脉，叶轮生或互生，在茎基部或沿着茎生长。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失