| 1. | Most monocotyledons are hypogeal . 大部分单子叶植物都是地面下的。 |
| 2. | A cladistic analysis of monocotyledons at the family level based on morphological data 单子叶植物科级分类阶元形态性状分支分析 |
| 3. | Dicotyledons usually show a netlike arrangement whereas monocotyledons generally show a parallel distribution of vein 双子叶植物主要为网状脉,而单子叶植物主要为平行脉。 |
| 4. | Some 60 of monocotyledons and 40 of dicotyledons are polyploid , as are 90 of ferns , many bryophytes , and some algae 60的单子叶植物和40的双子叶植物、 90的蕨类植物、多数苔藓植物以及某些藻类,都是多倍体。 |
| 5. | Angiosperms are divided into two major classes , the monocotyledons ( monocotyledonae ) and dicotyledons ( dicotyledonae ) , with a small basal group known as primitive dicotyledons 被子植物可以划分为两个纲,单子叶植物纲和双子叶植物纲。 |
| 6. | Monocotyledons and dicotyledons are so termed because they normally conatin one and two cotyledons respectively although there are exceptions 尽管有例外的情况出现,我们通常还是根据子叶的数目为一片还是两片而把植物分成单子叶植物和双子叶植物。 |
| 7. | The results of this study support removing acorus from araceae as a singular family and as the basal and relative isolation of the monocotyledon . 2 据此认为菖蒲属应从天南星科中分出并单独成科;同时支持菖蒲属位于单子叶植物基部较孤立的系统地位。 |
| 8. | Palmae is a very distinguished colony in the monocotyledon and a very important component of the tropical flora . it is one of the three most important economic families in the world 棕榈科( palmae )是单子叶植物纲中很有特色的一个类群,是热带植物区系的重要组成部分,是世界上最重要的三大经济植物类群之一。 |
| 9. | Thirdly , it is possible that acorus is in an isolated , primitive position among the monocotyledon . the systematic position of acorus among the angiosperms deserves to be studied deeply 菖蒲属可能是整个单子叶植物中一个较孤立的、原始的类群,它在整个被子植物中的系统地位,目前尚无定论,还有特深入探讨。 |
| 10. | Another question discussed was the pore shape correction . the equivalent pore radius of the elongated microcrack membrane pore was corrected by the correlation present in the study on the stomata diffusion of monocotyledons 这合理地解释了在膜接触器气液分离过程中,气液接触面积等于整个中空纤维膜的表面积而不是孔面积这一实验现象。 |