An investigation of the previously unexamined ancient Tasmanian clone Lomatia tasmanica W. M. Curtis (Proteaceae) and two other endemic species Lomatia tinctoria R. Br. and Lomatia polymorpha (Labill.) R. Br. was undertaken. This represents the first extensive natural products study in which individual phytochemical components have been isolated and identified from these three Lomatia species. Extraction of L. tasmanica leaves provided the naphthoquinone juglone (0.34% w/w), and n-alkanes nonacosane and heptacosane (0.30% w/w combined). L. polymorpha afforded the flavonoid glycosides dihydroquercetin 3-O-β-D-xyloside (0.22% w/w) and quercetin 3-O-β-d-glucose (0.14% w/w), as well as the naphthalene glucoside 1,4,8-trihydroxynaphthalene-1-O-β-d-glucose (0.04% w/w) and 4-O-p-coumaroyl-d-glucose (0.03% w/w). In addition, both L. polymorpha and L. tinctoria contained juglone (0.32% w/w and 0.58% w/w, respectively). L. polymorpha provided tetracosan-1-ol, hexacosan-1-ol and octacosan-1-ol (0.07% w/w combined), while L. tinctoria gave nonacosane (0.13% w/w). Analysis of three individual specimens from each of the three species demonstrated consistency in the respective phytochemical profiles of these populations and tentatively suggests limited intraspecific variation.

中文翻译：

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稀有古老克隆 Lomatia tasmanica 的植物化学特征以及与其他塔斯马尼亚特有物种 L. tinctoria 和 L. polymorpha 的比较

对先前未经审查的古代塔斯马尼亚克隆 Lomatia tasmanica WM Curtis (Proteaceae) 和其他两种特有物种 Lomatia tinctoria R. Br 的调查。和 Lomatia polymorpha (Labill.) R. Br. 进行了。这是第一次广泛的天然产品研究，其中从这三个 Lomatia 物种中分离和鉴定了单独的植物化学成分。L. tasmanica 叶的提取提供了萘醌胡桃酮 (0.34% w/w) 和正烷烃九十八烷和七十二烷 (0.30% w/w 组合)。L. polymorpha 提供黄酮苷二氢槲皮素 3-O-β-D-木糖苷 (0.22% w/w) 和槲皮素 3-O-β-d-葡萄糖 (0.14% w/w)，以及萘葡萄糖苷 1 ,4,8-trihydroxynaphthalene-1-O-β-d-glucose (0.04% w/w) 和 4-Op-coumaroyl-d-glucose (0.03% w/w)。此外，L. polymorpha 和 L. tinctoria 含有胡桃酮（分别为 0.32% w/w 和 0.58% w/w）。L. polymorpha 提供 tetracosan-1-ol、hexacosan-1-ol 和八十八烷-1-ol（0.07% w/w 的组合），而 L. tinctoria 提供了九十二烷（0.13% w/w）。对来自三个物种中每个物种的三个个体样本的分析表明，这些种群各自的植物化学特征具有一致性，并初步表明种内变异有限。