Wood Kenneth R, Lorence David H, Wagner Warren L, Appelhans Marc S
National Tropical Botanical Garden, 3530 Papalina Road, Kalāheo, HI 96741, USA National Tropical Botanical Garden Kalāheo United States of America.
National Museum of Natural History, Smithsonian Institution, PO Box 37012, Washington, DC 20013-7012, USA National Museum of Natural History, Smithsonian Institution Washington United States of America.
PhytoKeys. 2024 Dec 31;250:237-249. doi: 10.3897/phytokeys.250.128963. eCollection 2024.
A newly-discovered endemic tree species of from Kaua'i, Hawaiian Islands, is described and illustrated with notes on its distribution, ecology, conservation status and phylogenetic placement. A modification to the existing key to Hawaiian is also provided. is a member of Stone's group having carpels connate at base, capsules 4-lobed and leaves usually opposite. The new species differs from its Hawaiian congeners by its unique combination of abaxially glabrate to pilose-pubescent leaves with petioles up to 70 mm long, ramiflorous and axillary inflorescences, sepals on staminate flowers 0.3-0.5 mm long, capsules with green and purple streaking, 10-14 mm wide and seeds 3-3.5 mm long. Since its discovery in 2021, 15 individuals have been documented within a single remote windward hanging valley below the Kawaikini Summit of Kaua'i. represents a new Critically Endangered (CR) single island endemic species in need of conservation.
本文描述并说明了一种新发现的来自夏威夷考艾岛的特有树种，同时还介绍了其分布、生态、保护状况和系统发育位置，并配有相关注释。此外，还对现有的夏威夷植物检索表进行了修订。该树种是斯通组的成员，心皮基部合生，蒴果4裂，叶通常对生。新物种与其夏威夷同属植物的区别在于，其独特的叶背无毛至具柔毛的特征，叶柄长达70毫米，花着生于枝上和腋生花序，雄花萼片长0.3 - 0.5毫米，蒴果有绿色和紫色条纹，宽10 - 14毫米，种子长3 - 3.5毫米。自2021年发现以来，在考艾岛卡瓦伊基尼峰下风向上的一个偏远悬挂山谷中记录到了15株该树种个体。它是一种新的极度濒危（CR）单岛特有物种，需要进行保护。
