Senecio esperensis (Asteraceae: Senecioneae)-a new combination for the L'Esperance Rock groundsel, Kermadec Islands

被引：2
|
作者：
de Lange, P. J. [1 ]
Liew, C. S. [2 ]
Rolfe, J. R. [3 ]
Pelser, P. B. [2 ]
机构：
[1] Dept Conservat, Terr Ecosyst Sci & Policy Grp, Auckland, New Zealand
[2] Univ Canterbury, Sch Biol Sci, Christchurch 1, New Zealand
[3] Natl Off, Dept Conservat, Terr Ecosyst Sci & Policy Grp, Wellington, New Zealand
来源：
NEW ZEALAND JOURNAL OF BOTANY | 2015年 / 53卷 / 03期
关键词：
Asteraceae; Kermadec Islands group; lautusoid Senecio; new combination; New Zealand flora; Senecio; S; lautus; lautus subsp; esperensis;
D O I：
10.1080/0028825X.2015.1039552
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
A new combination, Senecio esperensis, is made for Senecio lautus subsp. esperensis, a narrow-range endemic confined to L'Esperance Rock, the southernmost of the Kermadec Islands group. Senecio esperensis is an ornithocoprophilous species wholly confined to the guano-enriched summit saddle of L'Esperance Rock. It is distinguished from S.lautus s.s. by its taller sparingly branched, strictly erect annual growth habit, succulent stems and foliage, and oblong-spathulate, irregularly serrate or lobulate, deeply toothed leaves. It has fewer involucral bracts, disc and ray-florets, shorter often twisted ray-florets, and smaller, sparingly hairy cypsela.
引用
收藏
页码：131 / 138
页数：8
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