S. Brullo, C. Brullo, S. Cambria, G. Tavilla, G. G. D. Galdo, S. Bogdanović
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引用次数: 3
摘要
Poa maroccana是地中海一年生物种,首次在西西里岛和整个意大利领土上记录。它通常发生在合生栖息地,主要以城市和郊区的路边为代表,在那里它是相当零星的。根据目前的知识,迄今只在地中海地区的几个地方,特别是在摩洛哥、阿尔及利亚、突尼斯、利比亚、西班牙、葡萄牙、希腊、土耳其、叙利亚和克里米亚报告了这种情况。野外观察和植物标本室调查表明,由于其形态上的相似性和相同的生态需要,该物种经常被误认为是黄花蒿,因此其真实的地理分布尚未得到证实。虽然这两个物种都是四倍体(2n = 28),但它们在叶柄、花序、小穗、颖片、颖花、外稃、花药、花萼和种子的形状和大小等许多相关特征上明显不同。为了更好地阐明maroccana P. maroccana与P. annua及其他地中海一年生植物的关系,本文对其进行了详细的形态描述和图解,并提供了所有近缘种的比较形态表和便于鉴定的分析关键字。
Taxonomical and chorological remarks on the Mediterranean Poa maroccana (Poaceae) and the first record in Italy from the Sicilian flora
Poa maroccana is an annual Mediterranean species, which is recorded for the first time from Sicily and for the whole Italian territory. It usually occurs in synanthopic habitats, represented mainly by urban and suburban roadsides, where it is quite sporadic. Based on current knowledge, it has been hitherto reported only in a few localities of the Mediterranean area, particularly in Morocco, Algeria, Tunisia, Libya, Spain, Portugal, Greece, Turkey, Syria and Crimea. Field observations and herbarium investigations have shown that this species is often mistaken for P. annua, mainly due to its morphological similarities, as well as for the same ecological needs, therefore its real geographical distribution has yet to be verified. Although the two species are both tetraploids (2n = 28), they clearly differ for numerous relevant features concerning the shape and size of ligules, inflorescence, spikelet, glumes, palea, lemma, anthers, lodicules and seed. In order to better clarify the relationships of P. maroccana with P. annua and the other annual species of this genus occurring in the Mediterranean, its carefull a morphological description and iconography is provided, as well as a comparative morphological table of all allied species and also their analytical key for easy identification.
期刊介绍:
The interest of the journal is field (terrestrial and aquatic) and experimental botany (including microorganisms, plant viruses, bacteria, unicellular algae), from subcellular level to ecosystems. The attention of the Journal is aimed to the research of karstic areas of the southern Europe, karstic waters and the Adriatic Sea (Mediterranean).