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Lysimachia septemfida. A. Flowering plant; B. Opened flower; C. Fruit with persistent style; D. Bract; E. Seeds; F. Leaves in whorls of 3; G: Multicellular nodiferous hairs.
Source publication
A new species, Lysimachia septemfida (Primulaceae), from Yunnan (Southwest China) is described and illustrated. The new species exhibits several unusual characters in Lysimachia including lack of a corolla, 7-merous flowers, leaves in whorls of 3 and distinct multicellular nodiferous hairs, which make it readily distinguishable from all other speci...
Citations
... China has been considered as the diversity centre of this genus with approximately 130 species recorded in Flora of China (Hu and Kelso 1996). Subsequently, at least 20 new species have been discovered in the last two decades (Peng and Hu 1999;Shao et al. 2004;Shao et al. 2006;Yan and Hao 2012;Liu et al. 2014a, b;Estes et al. 2015;Zhou et al. 2015;Baskose et al. 2016;Julius et al. 2016;Wang et al. 2016;Yan et al. 2017;Wang et al. 2018;Huang et al. 2019;Liu et al. 2020;Mou et al. 2020;Yi 2020;Ju et al. 2021;Lu et al. 2021). In recent years, multiple field expeditions have been conducted in the Municipality of Chongqing, China. ...
A new species, Lysimachia coriacea , from Chongqing, China, is described and illustrated. It is assigned to subgen. Lysimachia sect. Nummularia ser. Paridiformes and resembles L. paridiformis var. stenophylla, but is characterised by smaller leathery leaves with black glandular striations near the margin. It is also similar to L. nanpingensis in its two to three pairs of leaves sub-whorled at the stem apices, but differs by smaller leathery leaves and densely glandular stem, petiole and pedicel, and calyx lobes with sparse black glandular stripes.
... The species of Lysimachia are highly diversified in East Asia (Yan et al., 2018). Especially in China, there is nearly 150 species (Zhou et al., 2015;Wang et al., 2016;Yan et al., 2017;Wang et al., 2018;Huang et al., 2019;Huang et al., 2020) and one of the diversity centers of the genus. ...
Lysimachia liujiangensis, a new species of Lysimachia subg. Idiophyton Hand.-Mazz. from central Guangxi, China, is described and illustrated based on morphological and molecular data. The phylogenetic analyses showed that Lysimachia liujiangensis belongs to subg. Idiophyton and closely related to L. millietii (H.Lév.) Hand.-Mazz.. However, Lysimachia liujiangensis can be distinguished from L. millietii by its stems densely dark purple-glandular at the top and terete in upper part, leaf blade oblanceolate, pedicel 1.3-2.2 cm long, dark purple-glandular, calyx lobes 5-7 mm long, dark purple-glandular on both sides and margin.
... Рід Lysimachia містить приблизно 140-200 видів з поширенням по всьому світу і за результатами сучасних досліджень досить активно доповнюється новими видами (Loc and Hu, 2011;Zhang et al., 2012;Zhou et al., 2015;Wang et al., 2016). В Україні наведені 5 видів цього роду (Lysimachia nummularia L. (вербозілля лучне або монетне), L. vulgaris L. (в. ...
A cytological study of pollen of different species of the genus Lysimachia L. has been carried out. This is part of the comprehensive study of biological, anatomical, cytological, biochemical and molecular genetic features of the common species in Ukraine of this genus. The genetic collection of the genus Lysimachia has been begun to create on the territory of Feofania Park in Kyiv which is the government designated park. The general appearance and sculpture of pollen grains and the sensitivity of pollen of some species of the genus Lysimachia to different conditions of plant cultivation were studied. The pollen morphology and structure of his shell in of L. nummularia L., L. punctata L. and L. vulgaris L. studied using the scanning electron microscope. The obtained results made it possible to confirm that the shape of pollen grains, the structure of its shell are genetically determined and bear the specific features of the taxon. Growth and development of plants of Lysimachia in different conditions of the environment affect the biometric indices of pollen and its fertility. The sensitivity of pollen to exogenous conditions is elevated during the flowering of plants, compared to the phase of budding. There was a tendency towards a decrease in the diameter of pollen grains with the flower opening of the L. punctata and L. vulgaris in the cultivation of plants in conditions with increased exposure to anthropogenic factors. A high level of pollen fertility for plants of L. nummularia has been established.
Lysimachia caloneura G. Hao, X.L. Yu & A. Liu sp. nova (Primulaceae) is described and illustrated from Hunan, China. In general morphology it resembles the species in subgen. Lysimachia sect. Nummularia ser. Drymarifoliae, characterized by leaves with black glandular punctuations or striations, yellow corolla, filaments being longer than anthers and basally connate into a short tube, and a dorsifixed anther opening by lateral slits. Lysimachia caloneura is to some extent similar to L. patungensis, but differs from the latter by its tiny size and by having a strikingly dark green abaxial leaf surface and narrow light green bands along the main veins on the adaxial surface.
