Table 2 in The genus Piptadenia Benth.: pollen morphology and taxonomic implications

Table2. Qualitative characters of the polyads from Piptadenia species (Leguminosae). SpeciesSizeShapePollen grain number per polyadExineSexine:Nexine/NUbisch bodiesTypePiptadenia adiantoidesSmallOvoid12RugulateS=N-2Piptadenia affinisMediumOvoid8RugulateS>N+3Piptadenia buchtieniiMediumSpheroidal12Rugulate-+2Piptadenia cuzcoënsisMediumSpheroidal12RugulateS<N-2Piptadenia floribundaMediumSpheroidal12RugulateS<N-2Piptadenia gonoacanthaSmallSpheroidal12AreolateS=N+2Piptadenia imatacaeMediumSpheroidal16Rugulate--1Piptadenia irwiniiSmallOvoid8VerrucateS=N-3Piptadenia killipiiSmallOvoid16AreolateS=N-1Piptadenia laxipinnaMediumSpheroidal16RugulateS=N-1Piptadenia micracanthaSmallSpheroidal8RugulateS=N-3Piptadenia paniculataMediumSpheroidal16GranulateS=N+1Piptadenia peruvianaMediumSpheroidal16AreolateS>N-1Piptadenia pterocladaMediumOvoid12RugulateS<N+2Piptadenia ramosissimaSmallOvoid8Areolate--3Piptadenia retusaSmallOvoid8VerrucateS=N-3Piptadenia robustaMediumSpheroidal12RugulateS=N-2Piptadenia santosiiMediumOvoid12RugulateS>N-2Piptadenia trispermaSmallSpheroidal8Verrucate--3Piptadenia uaupensisMediumSpheroidal16VerrucateS>N-1Piptadenia uliginosaMediumSpheroidal16RugulateS=N+1 Legend: S = sexine / N= nexine表2 豆科（Leguminosae）盾柱木属（Piptadenia）物种复合花粉粒（polyad）的定性性状。 |物种|大小|形状|每个复合花粉粒的花粉粒数|外壁纹饰（exine）|外壁外层（sexine）:外壁内层（nexine）|乌比希氏体（Ubisch bodies）| |----|----|----|----|----|----|----| |Piptadenia adiantoides|小型|卵形|12|具皱纹饰（rugulate）|S=N-2|无| |Piptadenia affinis|中型|卵形|8|具皱纹饰（rugulate）|S>N+3|无| |Piptadenia buchtienii|中型|近球形|12|具皱纹饰（rugulate）|-+|2| |Piptadenia cuzcoënsis|中型|近球形|12|具皱纹饰（rugulate）|S<N-2|无| |Piptadenia floribunda|中型|近球形|12|具皱纹饰（rugulate）|S<N-2|无| |Piptadenia gonoacantha|小型|近球形|12|具网隙纹饰（areolate）|S=N+2|无| |Piptadenia imatacae|中型|近球形|16|具皱纹饰（rugulate）|--|1| |Piptadenia irwinii|小型|卵形|8|具瘤纹饰（verrucate）|S=N-3|无| |Piptadenia killipii|小型|卵形|16|具网隙纹饰（areolate）|S=N-1|无| |Piptadenia laxipinna|中型|近球形|16|具皱纹饰（rugulate）|S=N-1|无| |Piptadenia micracantha|小型|近球形|8|具皱纹饰（rugulate）|S=N-3|无| |Piptadenia paniculata|中型|近球形|16|具颗粒纹饰（granulate）|S=N+1|无| |Piptadenia peruviana|中型|近球形|16|具网隙纹饰（areolate）|S>N-1|无| |Piptadenia pteroclada|中型|卵形|12|具皱纹饰（rugulate）|S<N+2|无| |Piptadenia ramosissima|小型|卵形|8|具网隙纹饰（areolate）|--|3| |Piptadenia retusa|小型|卵形|8|具瘤纹饰（verrucate）|S=N-3|无| |Piptadenia robusta|中型|近球形|12|具皱纹饰（rugulate）|S=N-2|无| |Piptadenia santosii|中型|卵形|12|具皱纹饰（rugulate）|S>N-2|无| |Piptadenia trisperma|小型|近球形|8|具瘤纹饰（verrucate）|--|3| |Piptadenia uaupensis|中型|近球形|16|具瘤纹饰（verrucate）|S>N-1|无| |Piptadenia uliginosa|中型|近球形|16|具皱纹饰（rugulate）|S=N+1|无| 图例：S=外壁外层（sexine），N=外壁内层（nexine）