草业学报
草業學報
초업학보
PRATACULTURAL SCIENCE
2015年
6期
168-176
,共9页
王淼媛%刘玫%程薪宇%王宇婷
王淼媛%劉玫%程薪宇%王宇婷
왕묘원%류매%정신우%왕우정
前胡属%果实%结构%伞形科%系统学
前鬍屬%果實%結構%傘形科%繫統學
전호속%과실%결구%산형과%계통학
Peucedanum%fruit%structure%Apiaceae%systematics
本文深入研究了位于中国前胡属刺尖前胡组,多小苞片组,山亮蛇床组及近亮蛇床组的果实结构,结果显示前胡属果实多具单细胞毛状体。中脊及侧脊通常不明显,边脊形成翅。多数物种具小的伴生油管。油管分布在沟(1~4个)及结合面(2~14个),一些物种具短的或小的油管。结合面与分果同宽,具两个相对的心皮柄。胚乳腹面多平直。中果皮有球状晶体。前胡属不同组的果实结构相似,此属应是一个较自然的类群,属内是否需要分组值得进一步研究。石防风的果实与其他物种不同,具厚的边翅和大的维管束,支持分子系统学将其从前胡属分离出去。
本文深入研究瞭位于中國前鬍屬刺尖前鬍組,多小苞片組,山亮蛇床組及近亮蛇床組的果實結構,結果顯示前鬍屬果實多具單細胞毛狀體。中脊及側脊通常不明顯,邊脊形成翅。多數物種具小的伴生油管。油管分佈在溝(1~4箇)及結閤麵(2~14箇),一些物種具短的或小的油管。結閤麵與分果同寬,具兩箇相對的心皮柄。胚乳腹麵多平直。中果皮有毬狀晶體。前鬍屬不同組的果實結構相似,此屬應是一箇較自然的類群,屬內是否需要分組值得進一步研究。石防風的果實與其他物種不同,具厚的邊翅和大的維管束,支持分子繫統學將其從前鬍屬分離齣去。
본문심입연구료위우중국전호속자첨전호조,다소포편조,산량사상조급근량사상조적과실결구,결과현시전호속과실다구단세포모상체。중척급측척통상불명현,변척형성시。다수물충구소적반생유관。유관분포재구(1~4개)급결합면(2~14개),일사물충구단적혹소적유관。결합면여분과동관,구량개상대적심피병。배유복면다평직。중과피유구상정체。전호속불동조적과실결구상사,차속응시일개교자연적류군,속내시부수요분조치득진일보연구。석방풍적과실여기타물충불동,구후적변시화대적유관속,지지분자계통학장기종전호속분리출거。
The fruit structures of the sections Eleganitia,Bracteolata,Oreoselinum,and Selinoides in the genus Peucedanum were deeply studied in the paper.The results show that fruits of the genus usually have single cel-lular trichome.The median and lateral ribs are usually not prominent,but marginal ribs form wings.The small rib duct occurs in many taxa.Vittae are present in the furrow (1-4)and commisure (2-14),and short and drowf vittae are observed in some species.The commisure is as wide as the mericarp width and with two opposite carpophores.The endosperm is often flat at the commissural side.The spherical crystals occur in the mesocarp.The fruit structures are similar in different sections and the Peucedanum should be a more natural group,and the further study is needed to know if the genus should be divided into sections.The fruits of Peu-cedanum terebinthaceum differ from the other taxa,which have thick marginal wings and large vascular bun-dles,and it is supported here that the molecular research moved the Peucedanum terebinthaceum out from the genus.