{"title":"巴西热带稀树草原上的一个 Evolvulus（Cresseae-Convolvulaceae）新种","authors":"Diego Santos, Maria Teresa Buril","doi":"10.1007/s12228-023-09767-7","DOIUrl":null,"url":null,"abstract":"<p>During taxonomic studies of <i>Evolvulus</i> in the Brazilian northeast, a new species of this genus was discovered in the Brazilian savanna. It is characterized by having prostrate stems, leaf blades that are concolorous and falcate, lanceolate, or narrowly ovate, with leaf bases that are cuneate or rarely rounded. <b><i>Evolvulus jalapensis sp. nov.</i></b> is similar to <i>E. anagalloides</i> in sharing prostrate stems, peduncles that do not exceed the leaves, and rotate corollas, but differs from <i>E. anagalloides</i> by leaf blade and base shape, indumentum type, and the distribution of the inflorescences along the branches. A diagnosis, morphological descriptions, illustrations, taxonomic comments, conservation status, distribution map, and an identification key are here provided.</p>","PeriodicalId":9343,"journal":{"name":"Brittonia","volume":"16 1","pages":""},"PeriodicalIF":0.6000,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A new species of Evolvulus (Cresseae-Convolvulaceae) from the Brazilian savanna\",\"authors\":\"Diego Santos, Maria Teresa Buril\",\"doi\":\"10.1007/s12228-023-09767-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>During taxonomic studies of <i>Evolvulus</i> in the Brazilian northeast, a new species of this genus was discovered in the Brazilian savanna. It is characterized by having prostrate stems, leaf blades that are concolorous and falcate, lanceolate, or narrowly ovate, with leaf bases that are cuneate or rarely rounded. <b><i>Evolvulus jalapensis sp. nov.</i></b> is similar to <i>E. anagalloides</i> in sharing prostrate stems, peduncles that do not exceed the leaves, and rotate corollas, but differs from <i>E. anagalloides</i> by leaf blade and base shape, indumentum type, and the distribution of the inflorescences along the branches. A diagnosis, morphological descriptions, illustrations, taxonomic comments, conservation status, distribution map, and an identification key are here provided.</p>\",\"PeriodicalId\":9343,\"journal\":{\"name\":\"Brittonia\",\"volume\":\"16 1\",\"pages\":\"\"},\"PeriodicalIF\":0.6000,\"publicationDate\":\"2024-09-10\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Brittonia\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1007/s12228-023-09767-7\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"PLANT SCIENCES\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Brittonia","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1007/s12228-023-09767-7","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
摘要
在对巴西东北部的 Evolvulus 进行分类研究期间，在巴西热带稀树草原发现了该属的一个新种。它的特点是茎匍匐，叶片同叶，镰刀形、披针形或狭卵形，叶基部楔形或很少圆形。Evolvulus jalapensis sp. nov. 与 E. anagalloides 相似，都有匍匐茎、不超过叶片的花序梗和旋转的花冠，但叶片和基部形状、毛被类型以及花序沿枝条的分布与 E. anagalloides 不同。本文提供了诊断、形态学描述、插图、分类学评论、保护状况、分布图和识别钥匙。
A new species of Evolvulus (Cresseae-Convolvulaceae) from the Brazilian savanna
During taxonomic studies of Evolvulus in the Brazilian northeast, a new species of this genus was discovered in the Brazilian savanna. It is characterized by having prostrate stems, leaf blades that are concolorous and falcate, lanceolate, or narrowly ovate, with leaf bases that are cuneate or rarely rounded. Evolvulus jalapensis sp. nov. is similar to E. anagalloides in sharing prostrate stems, peduncles that do not exceed the leaves, and rotate corollas, but differs from E. anagalloides by leaf blade and base shape, indumentum type, and the distribution of the inflorescences along the branches. A diagnosis, morphological descriptions, illustrations, taxonomic comments, conservation status, distribution map, and an identification key are here provided.
期刊介绍：
Since 1931, Brittonia, assuming the broadest possible definition of the field of systematic botany, has been an important outlet for the publication of original research articles on anatomy, botanical history, chemotaxonomy, morphology, paleobotany, phylogenetic systematics, taxonomy, and phytogeography. Each issue contains articles by the staff of The New York Botanical Garden and outside contributors, book reviews, and announcements.
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