对生叶

The Study on the Productivity of phyllostachys heterocycal forest mixed with broadieaved trees in East Fujian showed that the mixed forest had higher productivity compared with pure forest, the mean DHB beight and mean weight and M of culm increased by 17.9%、8.7%、37.53% and 25.6% respectively, the density, evenness, uniform and ILA were all higher than pure forest

对闽东12年生竹阔混交林中毛竹生产力的研究结果表明：竹阔混交林比纯林具有较高的生产力，毛竹的平均胸径、平均竹高、平均竹秆产量、平均蓄积量分别比毛竹纯林增加了17.9%、8.7%、37.53%和25.6%；立竹度、均匀度、整齐度、叶面积指数均比毛竹纯林高。

One-year-old seedlings of five native species including Dolichandrone cauda-felina, Syzygium jambos, Melastoma candidum, Pterospermum heterophyllu, and Schefflera octophylla were planted in pot containers and acclimated under partially shaded regime for 4 weeks. And further, seedlings of each species were divided into two groups with equivalent individuals for each group, which were exposed to the clean and the polluted site, respectively. After five months, dimensional growth parameters and dry mass allocation were measured and analysed to study the differences in response of these subtropical woody species to atmospheric pollution.

将乡土木本植物猫尾木Dolichandrone cauda-felina蒲桃Syzygium jambos、野牡丹Melastoma candidum、翻白叶树Pterospermum heterophyllum以及鸭脚木Schefflera ctophylla 1年生袋装苗盆栽，置半庇荫环境下适应4周，之后按株数均等分成两组，分别放置在南海五星污染区和广州华南植物园清洁区进行试验。5个月后进行植物构形生长参数和干物质量的测定，以探讨这5种亚热带树苗对大气污染响应的差异。

Stems herbaceous. Foliage leaves solitary or paired on each growth module, usually long petiolate, often cordate or sagittate, margin entire.

茎草质。营养叶单生或成对在每生长单元，具叶柄的通常长，通常上心形的或箭头形，边缘全缘。

Both Stemona sessilifolia and Stemona japonica had more protostemonine which was 0.22%～0.36 percent of all. No protostemonine was in Stemona tuberose.

蔓生、直立百部均含有较多的原百部碱，所取样品中含量为0.22%～0.36％；对叶百部中并不含有原百部碱。

Flowering shoots in pairs; leaves alternate, abaxially often white tomentose or strigose in var.

成对的花嫩枝；叶互生，背面经常白色或具糙伏毛在var。

Leaves alternate, 3-veined from base, margin subentire to serrate; stipules usually changed into 1 or 2 lignified, erect or revurved spines.

叶互生，3脉的自基部，边缘近全缘对有锯齿的；托叶通常变成1或2木质化，直立或者revurved具刺。

Leaves alternate, petiolate, thinly leathery or papery, margin dentate in apical half, rarely entire, lateral veins 2 or 3 pairs, lowest triplinerved.

叶互生，具叶柄，薄革质或纸质，上半部边缘具牙齿，很少全缘，侧脉2或3对，低的离基三出脉。

Leaf pairs free; capsule valves with longitudinal vittae only

叶对离生；仅蒴果裂爿具纵向的油管 51

Leaves sublinear to narrowly lanceolate, subentire to obscurely denticulate; stolons with fleshy terminal turions; fruiting pedicels 1-5 cm; seed comas dingy white.

叶近线形到狭披针形，对具不明显小齿近全缘；匍匐茎具肉质的顶生的具鳞根出条；果梗1-5厘米；种子种缨昏暗白色。

With the seeds of artificially cultivated 2-year-old A. heterophyllum as tested materials, the cells in metaphase in the seeds were made for observation, statistic and karyotype analysis, and based on the 2 main features of length ratio and arm ratio of chromosome, the karyotypes were classified according to the criteria of Stebbins.

方法］以人工栽培的2年生异叶天南星种子为试材，观察种子中的中期分裂相细胞并对其进行统计和核型分析，其核型分类根据核型中染色体的长度比和臂比2项主要特征，按Stebbins的标准进行划分。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。