A. R. Clapham’s scientific contributions

... The results of molecular analysis prove this fact, because in dendrogram M2 appear in second cluster near Mentha aquatica (M1), so that indicate the genetic similarity in his structure. The morphological characteristics of the M2 variety correspond for Mentha x piperita, which it is universally agreed to be a hybrid (Harley, 1975). The leaves can be 4-9 cm long and 1.5-4 cm wide with a very short petiole. ...

Reference:

Use Of RAPD Markers For Identification Of Different Varieties In Mentha sp

... The flowers have small and numerous petals with strong pleasant scent. The leaves are divided and made up of two or more discrete leaflets, with large serrate pinna and small intermediate ones [16,17]. Since the plant has a favorable taste and smell, the whole plant parts are used in aromatic products and food industries [18]. ...

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Filipendula ulmaria (L.) Maxim. (Meadowsweet): a Review of Traditional Uses, Phytochemistry and Pharmacology

... In these networks, there are examples of active female botanists . Marian Farquharson (1846–1912) authored the Pocket Guide to British Ferns and campaigned for women's admission to the Royal and Linnean Societies (Ridley, 1881; Mason, 1995); Eliza Standerwick Gregory (1840–1832) wrote a monograph on Violets (Gregory, 1912); Gwendolen Day (1884–1967) was president of the Bedford Natural History and Archaeological Society; Lady Joanna Davy (1865– 1955) and Gertrude Foggit (A.K.A Gertrude Bacon, 1874–1949) were co-discoverers of Carex microglochin in Britain (Desmond, 1977). Gertrude Foggit was a particularly pioneering woman, being the first woman to fly in an airship and the first English woman to fly in an airplane (Haines, 2001). ...

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Herbarium specimens reveal the exchange network of British and Irish botanists, 1856–1932

... The methodology employed in this study consisted of three steps: (i) selection of roses to be considered to be native, naturalised or occurring naturally, which hereafter they are referred to as wild; (ii) a detailed morphological description of the species or cultivar, including habitat and taxonomical remarks supported by photographs and (iii) identification of the collected specimens, with the aid of various publications and online sources ( Chapman, 2012;Clapham, Tutin & Warburg, 1962;Grant, 2000;HMF, 2016;HWR, 2009;Klastersky, 1968;Pignatti, 1982;Phillips & Rix, 1993;Pottier-Alapetite, 1979;Redell, 1998;Silvestre & Montserrat, 1998;Stace, 2010;VRA, 2016). The main criteria by which roses were selected for this study are the following: i. ...

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A Preliminary Survey and Taxonomy of Wild Roses (Rosa Spp.) Occurring on the Maltese Islands

... This equates to an approximate rate of 12.5 meters per year. The concept of rapid plant migration, initially elucidated by Reid (Reid, 1899), shed light on the phenomenon where oaks spread at a pace faster than the natural dispersal rate of their seeds in northern England following the last glacial period. The primary reason behind this phenomenon, referred to as the Rapid Plant Migration Paradox (Clark et al., 1998), is the assumption that crows play a significant role in facilitating such rapid dispersal. ...

Reference:

Kitap Bölümü Juniperus

... True C. solstitialis exhibits heterocarpy. This is rarely or not even mentioned in Floras, exceptions include the monograph by Prodan (1930) andClapham & al. (1957). The marginal achenes are dark brown to nearly black and usually without a pappus, the central achenes are shiny, pale yellowish blotched with brown and with a white pappus ca. as long as the achene. ...

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Vladimirov, V., Delcheva, M., Tashev, A. & Bancheva, S. 2017. Reports 78–87. – In: Vladimirov, V. & al. (comp.), New floristic records in the Balkans: 32. – Phytol. Balcan., 23(1). pp. 139-140.

... Corolla petals are white, often reddish on the outside, oblong, 9-14 mm long and 2.5-5 mm wide, and glabrous. Stamens are 3-5.5 mm long; anthers are about 1.5 × 1 mm in size (Clapham et al. 1981;Lepší and Lepší 2008). ...

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First record of non-native woody species Amelanchier ×lamarckii (Rosaceae), in Lithuania

... Suaeda maritima is a common species on saline areas of the northern hemisphere. It grows in both inland and coastal wetland, such as British salt marshes, between high and low tides, from April to October (Clapham and Warburg, 1959; Wetson and Flowers, 2010) and commonly shows optimal growth between 170 and 340 mM NaCl (Flowers, 1972; Thiyagarajah et al., 1996). Although much work has been done on the effect of salinity on growth of S. maritima, there is less information on its response to the combination of salinity and waterlogging. ...

Reference:

The effect of combined salinity and waterlogging on the halophyte Suaeda maritima: The role of antioxidants