摘要
为了研究苦草属植物的多样性 ,对安徽省董铺水库和六安市新河大塘产的水鳖科刺苦草和长梗苦草种子进行了扫描电镜观察 研究发现刺苦草种子的翅 2～ 5枚 ,较短 ,为种子的 1/ 2～2 / 3;而其另一个居群种子的翅 2～ 3枚 ,与种子近等长 ,并且翅较厚 长梗苦草种子有许多腺状突起 ,而其另一个居群种子光滑 本文将刺苦草和长梗苦草各建立一个新变种 ,即 :长翅刺苦草 (Val lisneriaspinulosavar.longalis)和细果长梗苦草 (V .longipedunculatavar.linearicarpa)
In order to study the diversity of Vallisneria , the seeds of Vallisneria spinulosa and V. longipedunculata from the Dongpu Reservoir of Hefei city and Xinhe of Liuan City in Anhui Province were Aubjected to observation with SEM. The seed wings of V. spinulosa were 2～5 in number, about 1/2～2/3 in length of the seed itself, but those of another variety were 2～3 in number, nearly equal to the seed in length and thicker. The seed of V. longipedunculata was coated with many glandiform spines, but that of another variety is smooth. Two new varieties were found in this work, namely V. spinulosa var. longalis and V. longipedunculata var. linearicarpa. [
出处
《暨南大学学报（自然科学与医学版）》
CAS
CSCD
2001年第1期89-91,95,共4页
Journal of Jinan University(Natural Science & Medicine Edition)
基金
国家自然科学基金!<淮河水体污染防治的生态系统理论研究>课题资助 ([1999]0 45 )
