A terrestrial hybrid quillwort, Isoetes ×angeloi, hyb. nov., (Isoetaceae) from Sicily

IF 1.5 4区生物学 Q3 PLANT SCIENCES

Botany Letters Pub Date : 2022-11-08 DOI:10.1080/23818107.2022.2138539

D. Brunton, Karen L. McIntosh, P. Sokoloff

引用次数: 0

Abstract

ABSTRACT A sterile hybrid between diploids Isoetes gymnocarpa and I. longissima (s.s.) (Isoetaceae) is described from Anguillara, Trapani Province, Sicily, Italy. Although closest in morphology to I. gymnocarpa with which it was growing, the small group of hybrid plants also exhibited features of I. longissima which occurred abundantly within 50 m of the site. In addition to such classic hybrid characteristics as larger plant size (hybrid vigour) and polymorphic, aborted megaspores with ornamentation intermediate between that of the putative parents, the microspores of the hybrid exhibit both the arachnoid ornamentation features of I. gymnocarpa and the echinate features of I. longissima (s.s.). Isoetes ×angeloi, hyb. nov., is the first non-aquatic Isoetes hybrid to be formally described. It is also the first hybrid quillwort to be confirmed from the Mediterranean Basin.

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一种陆生杂交鹅掌草，Isoetes×angeloi，hyb。十一月，（Isoetaceae）来自西西里岛

摘要：在意大利西西里岛特拉帕尼省Anguillara报道了一个由裸果二倍体Isoetes gymnocarpa和最长柄木犀（Isoetaceae）组成的不育杂交种。尽管在形态上与它生长的裸果木最接近，但这一小群杂交植物也表现出最长的裸果木属的特征，这些特征大量出现在距离场地50米的范围内。除了植株较大（杂种活力）和多态性、败育的大孢子（其装饰性介于假定亲本之间）等经典杂交特征外，该杂交种的小孢子还表现出裸果木的蛛形装饰特征和最长刺木的针叶树特征。Isoetes×angeloi，hyb。nov.，是第一个被正式描述的非水生Isoetes杂交种。它也是第一个从地中海盆地确认的杂交鹅掌草。

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来源期刊

Botany Letters Agricultural and Biological Sciences-Plant Science

CiteScore

3.10

自引率

6.70%

发文量

期刊介绍： Botany Letters is an international scientific journal, published by the French Botanical Society (Société botanique de France) in partnership with Taylor & Francis. Botany Letters replaces Acta Botanica Gallica, which was created in 1993, building on over a century of renowned publications by the Société botanique de France.