CAJ | 학술논문

首次对后蕊苣苔属(Opithandra)文采后蕊苣苔(O．wentsaii)、龙南后蕊苣苔(O．burttii)和裂檐苣苔(O．pumila)的花粉进行扫描电镜研究.结果表明：三者花粉形状与外壁纹饰差异显著.在前人研究基础上,综合花粉形状及外壁纹饰特征,将后蕊苣苔属花粉分为四大类群：第一大类群包括O．burttii、O．sinohenryi、O．primuloides和O．fargesii,该类群花粉近球形,网状纹饰,网脊较宽,宽度不均匀；第二大类群包括O．acaulis和O．pumila,该类群花粉近球形,网状纹饰不明显,刺密且显著；第三大类群包括O．dalzielii、O．cinerea和O．dinghushanensis,该类群花粉近球形或扁球形,网状纹饰,网脊较窄,宽度均匀；第四大类群包括O．wentsaii 和O．obtusidentata,该类群花粉长椭圆球形,网状纹饰,网脊较窄,宽度均匀.结果与王文采对该属的分类系统不完全一致,对该属分类提出一些建议.
수차대후예거태속(Opithandra)문채후예거태(O．wentsaii)、룡남후예거태(O．burttii)화렬첨거태(O．pumila)적화분진행소묘전경연구.결과표명：삼자화분형상여외벽문식차이현저.재전인연구기출상,종합화분형상급외벽문식특정,장후예거태속화분분위사대류군：제일대류군포괄O．burttii、O．sinohenryi、O．primuloides화O．fargesii,해류군화분근구형,망상문식,망척교관,관도불균균；제이대류군포괄O．acaulis화O．pumila,해류군화분근구형,망상문식불명현,자밀차현저；제삼대류군포괄O．dalzielii、O．cinerea화O．dinghushanensis,해류군화분근구형혹편구형,망상문식,망척교착,관도균균；제사대류군포괄O．wentsaii 화O．obtusidentata,해류군화분장타원구형,망상문식,망척교착,관도균균.결과여왕문채대해속적분류계통불완전일치,대해속분류제출일사건의.
Pollen grains ofOpithandra wentsaii ,O .burttii andO .pumila were firstly examined by SEM.The pollen morphologies of them were significantly different from each other.Based on previous research,according to the pollen shape and exine ornamentation,pollen grains of this genus can be divided into 4 groups:(1)pollen is subspheroidal, wide muri and uneven width of muri,includingO .burttii ,O .sinohenryi ,O .primuloides andO .fargesii ;(2)pollen is subspheroidal,obscure reticulation with distinct spinulate,including O .acaulis and O .pumila ;(3)pollen is subspheroidal or oblate,narrow muri and even width of muri,includingO .dalzielii ,O .cinerea andO .dinghushanensis ;(4)pollen is long ellipsoid,narrow muri and even width of muri,includingO .wentsaii andO .obtusidentata .Our result disaccords with Wang’s classification system.We put forward classified advice to the genus.