这类植物分属莴苣属和翅果菊属。
They were found to belong to the genera Lactuca and Pterocypsela.
一种莴苣属植物，尤指莴苣，因叶可食用而扶植。
一种莴苣属植物，尤指莴苣，因叶可食用而扶植。
Any of various plants of the genus Lactuca, especially L. sativa, cultivated for their edible leaves.
结果表明：莴苣属（广义）内这些种具有相同的花粉类型。
The results indicate: the species within Lactuca L. (s. l. ) have the same pollen type.
叶用莴苣属喜冷凉蔬菜，在炎热的季节栽培，植株往往遭受伤害或生长不良。
Adapted to cool climate, lettuce (Lactuca sativa L. ) is liable to be heat injured or grow poorly when grown in hot seasons.
石莼科的模式属；绿色海藻具有两个细胞厚度的叶状体；海莴苣。
Type genus of the family ulvaceae; green seaweed having a thallus two cells thick: sea lettuce.
石莼科的模式属；绿色海藻具有两个细胞厚度的叶状体；海莴苣。
Type genus of the family ulvaceae; green seaweed having a thallus two cells thick: sea lettuce.
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