{"title":"A taxonomic study of the genus Pseudostellaria in Korea","authors":"Hyun Jo, Muyeol Kim","doi":"10.11110/KJPT.2019.49.2.145","DOIUrl":null,"url":null,"abstract":"The genus Pseudostellaria (Caryophyllaceae) in Korea was investigated in order to clarify the taxonomic positions and scientific names among the species in this genus based on morphological characteristics. P. × bohyeonsanensis and P. × seoraksanensis share several characteristics (trichome on the sepal margin and midvein, five petals, and stem reclining to the ground after flowering) with P. davidii. P. × bohyeonsanensis, resulting from natural hybridization of P. davidii and P. okamotoi var. longipedicellata, has sterile fruit and a long pedicel (2.2–6.0 cm). P. × seoraksanensis, a natural hybrid of P. davidii and P. palibiniana var. palibiniana, has sterile fruit and a short pedicel (1.1–1.8 cm). P. okamotoi var. longipedicellata shares several characteristics (long pedicels of chasmogamic flowers that elongate to the ground when bearing fruit and cleistogamic flowers with a long pedicel) with the related taxa P. okamotoi var. okamotoi. P. okamotoi var. longipedicellata has slender root tubers, glabrous pedicels, and 5–9 petals. P. palibiniana var. gageodoensis is described from Gageodo Island. It is similar to P. palibiniana var. palibiniana having chasmogamic flowers at the stem terminal, 5–7 petals, and a short pedicel, but P. palibiniana var. gageodoensis is distinguished by 1–2 rows of trichomes on the pedicel, a large sepal size, a large petal size, and a branched stem at its base. P. × biseulsanensis, from a natural hybrid of P. heterophylla and P. okamotoi var. longipedicellata, has a solitary aerial stem, a chasmogamic flower at the stem terminal, a shallow marginate or bitten petal apex, one row of trichomes on the pedicel, and sterile fruit. P. × segeolsanensis, from a natural hybrid of P. palibiniana var. palibiniana and P. okamotoi var. okamotoi, is described from Segeolsan Mt. It has numerous aerial stems, a chasmogamic flower at the stem terminal, 1–2 rows of trichomes on the pedicel, and fertile fruit. Consequently, the genus Pseudostellaria in Korea has been classified into eight species, four hybrids, two varieties, and five forms.","PeriodicalId":52232,"journal":{"name":"KOREAN JOURNAL OF PLANT TAXONOMY","volume":null,"pages":null},"PeriodicalIF":0.8000,"publicationDate":"2019-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"KOREAN JOURNAL OF PLANT TAXONOMY","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.11110/KJPT.2019.49.2.145","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 2
Abstract
The genus Pseudostellaria (Caryophyllaceae) in Korea was investigated in order to clarify the taxonomic positions and scientific names among the species in this genus based on morphological characteristics. P. × bohyeonsanensis and P. × seoraksanensis share several characteristics (trichome on the sepal margin and midvein, five petals, and stem reclining to the ground after flowering) with P. davidii. P. × bohyeonsanensis, resulting from natural hybridization of P. davidii and P. okamotoi var. longipedicellata, has sterile fruit and a long pedicel (2.2–6.0 cm). P. × seoraksanensis, a natural hybrid of P. davidii and P. palibiniana var. palibiniana, has sterile fruit and a short pedicel (1.1–1.8 cm). P. okamotoi var. longipedicellata shares several characteristics (long pedicels of chasmogamic flowers that elongate to the ground when bearing fruit and cleistogamic flowers with a long pedicel) with the related taxa P. okamotoi var. okamotoi. P. okamotoi var. longipedicellata has slender root tubers, glabrous pedicels, and 5–9 petals. P. palibiniana var. gageodoensis is described from Gageodo Island. It is similar to P. palibiniana var. palibiniana having chasmogamic flowers at the stem terminal, 5–7 petals, and a short pedicel, but P. palibiniana var. gageodoensis is distinguished by 1–2 rows of trichomes on the pedicel, a large sepal size, a large petal size, and a branched stem at its base. P. × biseulsanensis, from a natural hybrid of P. heterophylla and P. okamotoi var. longipedicellata, has a solitary aerial stem, a chasmogamic flower at the stem terminal, a shallow marginate or bitten petal apex, one row of trichomes on the pedicel, and sterile fruit. P. × segeolsanensis, from a natural hybrid of P. palibiniana var. palibiniana and P. okamotoi var. okamotoi, is described from Segeolsan Mt. It has numerous aerial stems, a chasmogamic flower at the stem terminal, 1–2 rows of trichomes on the pedicel, and fertile fruit. Consequently, the genus Pseudostellaria in Korea has been classified into eight species, four hybrids, two varieties, and five forms.
摘要根据形态特征,对韩国的伪星属(Pseudostellaria)进行了研究,以明确该属各种的分类位置和学名。P. x bohyeonsanensis和P. x seoraksanensis与P. x davidii有几个共同的特征(在萼片边缘和中脉上有毛状体,五个花瓣,开花后茎斜向地面)。P. x bohyeonsanensis是P. davidii和P. okamotoi var. longipedicellata的自然杂交产物,果实不育,花梗长(2.2 ~ 6.0 cm)。P. x seoraksanensis是P. davidii和P. palibiniana var. palibiniana的天然杂交种,果实不育,花梗短(1.1-1.8 cm)。冈本变种长花梗与相关分类群冈本变种有几个共同的特征(裂裂花的长花梗在结果时拉长到地面,闭裂花的长花梗)。长花梗okamotoi变种有纤细的块根,无花梗,5-9瓣。加古多岛的palibiniana var. gageodoensis。它与palibiniana变种palibiniana相似,在茎端有裂裂花,5-7瓣,花梗短,但palibiniana变种gageodoensis的特征是花梗上有1-2行毛状体,萼片大,花瓣大,基部有分枝茎。异叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶假单叶。P. x segeolsanensis是P. palibiniana var. palibiniana和P. okamotoi var. okamotoi的天然杂种,描述于Segeolsan山。它有许多空中茎,茎端有裂裂花,花梗上有1-2行毛状体,果实可育。因此,韩国的Pseudostellaria属被分为8种,4种杂交,2种变种和5种。