Kenneth R Wood, David H Lorence, Warren L Wagner, Susan Fawcett
{"title":"<i>Geniostomaimadae</i> (Loganiaceae), a new single-island endemic species from Kaua'i, Hawaiian Islands.","authors":"Kenneth R Wood, David H Lorence, Warren L Wagner, Susan Fawcett","doi":"10.3897/phytokeys.257.154236","DOIUrl":null,"url":null,"abstract":"<p><p>A new endemic species of <i>Geniostoma</i> from Kaua'i, Hawaiian Islands, is described and illustrated with notes on its distribution, ecology, conservation status, and relationships to other members of the genus. A modification to the existing key for Hawaiian <i>Geniostoma</i> is provided along with a key to all Kaua'i species. <i>Geniostomaimadae</i> <b>sp. nov.</b>, differs from its Hawaiian congeners by its unique combination of glabrous stems, leaves and stipules, flowers 3-10 in open, paniculate cymes with peduncles up to 75 mm long, corolla salverform, lobes 9-11 mm long, calyx lobes 5-9 mm long, and capsules 2-valved with beak 2-4 mm long. Population estimates range from 800 to 1250 individuals distributed across the central northern and eastern windward ridges, slopes and valleys of Kaua'i. <i>Geniostomaimadae</i> represents a new Vulnerable (VU) single-island endemic species.</p>","PeriodicalId":20070,"journal":{"name":"PhytoKeys","volume":"257 ","pages":"191-207"},"PeriodicalIF":1.3000,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12177514/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"PhytoKeys","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.3897/phytokeys.257.154236","RegionNum":3,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/1/1 0:00:00","PubModel":"eCollection","JCR":"Q3","JCRName":"PLANT SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
A new endemic species of Geniostoma from Kaua'i, Hawaiian Islands, is described and illustrated with notes on its distribution, ecology, conservation status, and relationships to other members of the genus. A modification to the existing key for Hawaiian Geniostoma is provided along with a key to all Kaua'i species. Geniostomaimadaesp. nov., differs from its Hawaiian congeners by its unique combination of glabrous stems, leaves and stipules, flowers 3-10 in open, paniculate cymes with peduncles up to 75 mm long, corolla salverform, lobes 9-11 mm long, calyx lobes 5-9 mm long, and capsules 2-valved with beak 2-4 mm long. Population estimates range from 800 to 1250 individuals distributed across the central northern and eastern windward ridges, slopes and valleys of Kaua'i. Geniostomaimadae represents a new Vulnerable (VU) single-island endemic species.
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