{"title":"金丝桃属植物种皮形态特征及其分类价值","authors":"P. Szkudlarz, Z. Celka","doi":"10.1515/biorc-2016-0022","DOIUrl":null,"url":null,"abstract":"Abstract Eight Hypericum species are native to Poland: H. elegans Stephan ex Willd., H. hirsutum L., H. humifusum L., H. maculatum Crantz, H. montanum L., H. perforatum L., H. pulchrum L., and H. tetrapterum Fr. Only seeds of H. elegans were investigated in detail in Poland before, so here we present results of qualitative and quantitative analyses of seed morphology of the other 7 species, based on characters like seed length, width, and shape, seed coat sculpture, shape of epidermal cells of the testa, and number of epidermal cells along the seed axis. The results show that seeds of the studied species are small, 0.56-1.15 mm long and 0.26-0.49 mm wide. In SEM images, seed coat sculpture is reticulate in 5 species, papillate in H. hirsutum, and cup-shaped in H. pulchrum. The differences are caused by the varied final development of the testa epidermis, which constitutes the outer layer of the seed coat. The mean number of epidermal cells along the seed axis ranges from 22 to 33. Results of cluster analysis, based on the agglomeration method and including also published data on seeds of H. elegans, show that the variation in the investigated characters of seeds is reflected in the taxonomic division of the genus into sections.","PeriodicalId":30223,"journal":{"name":"Biodiversity Research and Conservation","volume":"4 1","pages":"1 - 9"},"PeriodicalIF":0.0000,"publicationDate":"2016-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"Morphological characters of the seed coat in selected species of the genus Hypericum L. and their taxonomic value\",\"authors\":\"P. Szkudlarz, Z. Celka\",\"doi\":\"10.1515/biorc-2016-0022\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Abstract Eight Hypericum species are native to Poland: H. elegans Stephan ex Willd., H. hirsutum L., H. humifusum L., H. maculatum Crantz, H. montanum L., H. perforatum L., H. pulchrum L., and H. tetrapterum Fr. Only seeds of H. elegans were investigated in detail in Poland before, so here we present results of qualitative and quantitative analyses of seed morphology of the other 7 species, based on characters like seed length, width, and shape, seed coat sculpture, shape of epidermal cells of the testa, and number of epidermal cells along the seed axis. The results show that seeds of the studied species are small, 0.56-1.15 mm long and 0.26-0.49 mm wide. In SEM images, seed coat sculpture is reticulate in 5 species, papillate in H. hirsutum, and cup-shaped in H. pulchrum. The differences are caused by the varied final development of the testa epidermis, which constitutes the outer layer of the seed coat. The mean number of epidermal cells along the seed axis ranges from 22 to 33. Results of cluster analysis, based on the agglomeration method and including also published data on seeds of H. elegans, show that the variation in the investigated characters of seeds is reflected in the taxonomic division of the genus into sections.\",\"PeriodicalId\":30223,\"journal\":{\"name\":\"Biodiversity Research and Conservation\",\"volume\":\"4 1\",\"pages\":\"1 - 9\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"6\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Biodiversity Research and Conservation\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1515/biorc-2016-0022\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Biodiversity Research and Conservation","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1515/biorc-2016-0022","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
摘要
8种原产于波兰的金丝桃属植物:H. elegans Stephan ex wild。, h .分子L h . humifusum L。h .欧Crantz, h . montanum L。h .叶连翘L。h . pulchrum L。h . tetrapterum Fr。只有种子的详细研究了h .线虫在波兰之前,这里我们提出的定性和定量分析结果种子形态学的其他7种,基于角色像种子长度,宽度,和形状,种皮雕塑、外种皮的表皮细胞的形状,沿着种子轴和表皮细胞的数量。结果表明:所研究树种种子体积小,长0.56 ~ 1.15 mm,宽0.26 ~ 0.49 mm;在扫描电镜图像中,种皮雕刻在5种中呈网状,在H. hirsutum中呈乳头状,在H. pulchrum中呈杯状。这种差异是由构成种皮外层的种皮表皮最终发育的不同引起的。沿种子轴的平均表皮细胞数为22 ~ 33个。采用聚类分析方法并结合已发表的线虫种子资料进行聚类分析,结果表明所调查的线虫种子性状的差异反映在属的分段上。
Morphological characters of the seed coat in selected species of the genus Hypericum L. and their taxonomic value
Abstract Eight Hypericum species are native to Poland: H. elegans Stephan ex Willd., H. hirsutum L., H. humifusum L., H. maculatum Crantz, H. montanum L., H. perforatum L., H. pulchrum L., and H. tetrapterum Fr. Only seeds of H. elegans were investigated in detail in Poland before, so here we present results of qualitative and quantitative analyses of seed morphology of the other 7 species, based on characters like seed length, width, and shape, seed coat sculpture, shape of epidermal cells of the testa, and number of epidermal cells along the seed axis. The results show that seeds of the studied species are small, 0.56-1.15 mm long and 0.26-0.49 mm wide. In SEM images, seed coat sculpture is reticulate in 5 species, papillate in H. hirsutum, and cup-shaped in H. pulchrum. The differences are caused by the varied final development of the testa epidermis, which constitutes the outer layer of the seed coat. The mean number of epidermal cells along the seed axis ranges from 22 to 33. Results of cluster analysis, based on the agglomeration method and including also published data on seeds of H. elegans, show that the variation in the investigated characters of seeds is reflected in the taxonomic division of the genus into sections.