Phytosociological analysis of the <i>Genista</i> sp. pl. garrigues of the <i>Cisto-Lavanduletea</i> and <i>Rosmarinetea officinalis</i> classes in the South-Tyrrhenian area (Mediterranean Region)

The study reviews the <i>Genista</i> sp. pl. garrigues ascribable to the classes <i>Cisto-Lavanduletea</i> (acidophilous communities on volcanics and quartzarenites) and <i>Rosmarinetea officinalis</i> (basiphilous communities on calcareous and calcareous-dolomite substrates), in the southern territories of the Italo-Tyrrhenian Province. The floristic-synecological characterization of the identified coenoses led to the description and/or redefinition of various new syntaxa. They are distributed in the two new suballiances <i>Calicotomo villosae–Genistenion tyrrhenae</i> and <i>Genisto aristatae–Calicotomenion infestae</i> of the class <i>Cisto-Lavanduletea</i> (<i>Lavanduletalia stoechadis</i> and <i>Calicotomo villosae–Genistion tyrrhenae</i>), and in the alliance <i>Cisto eriocephali–Ericion multiflorae</i> of the class <i>Rosmarinetea officinalis</i> (<i>Rosmarinetalia officinalis</i>), with two new described associations.本研究对意大利-第勒尼安植物区（Italo-Tyrrhenian Province）南部领地内可归属于《岩蔷薇-熏衣草群丛纲（Cisto-Lavanduletea）》（火山岩与石英砂质岩基质上的适酸群落）与《药用迷迭香群丛纲（Rosmarinetea officinalis）》（石灰岩与石灰质白云岩基质上的适碱群落）的金雀儿属（Genista）多类群加里格灌丛（garrigues）进行了系统回顾与梳理。对所识别群落的区系-群落学特征表征，促成了多个全新群丛单位（syntaxa）的描述与/或重新界定。这些类群分布于《岩蔷薇-熏衣草群丛纲》下的两个全新亚联盟：毛花假百里香-第勒尼安金雀儿亚联盟（Calicotomo villosae–Genistenion tyrrhenae）与芒尖金雀儿-侵害假百里香亚联盟（Genisto aristatae–Calicotomenion infestae），该纲下属宽叶薰衣草群丛目（Lavanduletalia stoechadis）与毛花假百里香-第勒尼安金雀儿联盟（Calicotomo villosae–Genistion tyrrhenae）；同时分布于《药用迷迭香群丛纲》下的白头岩蔷薇-多花欧石楠联盟（Cisto eriocephali–Ericion multiflorae），该纲下属药用迷迭香群丛目（Rosmarinetalia officinalis），并包含两个首次正式描述的群丛（association）。