1,721,063 research outputs found
On the identity of Cyperus permacer (Cyperaceae) in West Africa
No full textVerloove, Filip, Browning, Jane, Mesterházy, Attila (2020): On the identity of Cyperus permacer (Cyperaceae) in West Africa. Adansonia (3) 42 (14): 249-254, DOI: 10.5252/adansonia2020v42a1
A new combination in Cenchrus (Poaceae: Paniceae), with lectotypification of Panicum divisum
No full textVerloove, Filip, Govaerts, Rafaël, Buttler, Karl Peter (2014): A new combination in Cenchrus (Poaceae: Paniceae), with lectotypification of Panicum divisum. Phytotaxa 181 (1): 59-60, DOI: 10.11646/phytotaxa.181.1.5, URL: http://dx.doi.org/10.11646/phytotaxa.181.1.
FIG. 1 in On the identity of Cyperus permacer (Cyperaceae) in West Africa
No full textFIG. 1. — Specimen used by Clarke (1907) to describe Cyperus permacer C.B. Clarke (Paris herbarium, Aug. Chevalier n°2488, P00569196).Published as part of Verloove, Filip, Browning, Jane & Mesterházy, Attila, 2020, On the identity of Cyperus permacer (Cyperaceae) in West Africa, pp. 249-254 in Adansonia (3) 42 (14) on page 252, DOI: 10.5252/adansonia2020v42a14, http://zenodo.org/record/444796
FIGURE 1 in Cynosurus peltieri (Pooideae, Poaceae), a poorly known species endemic to the Algerian-Tunisian terrestrial flora: further insights on its occurrence, IUCN Red List assessment, and lectotypification
No full textFIGURE 1. Cynosurus peltieri in its typical habitat in Kroumirian oak forests. A. Habit of the plant. B. Detail of its unilateral and linear, clearly lobed panicle. All photographs were taken by Ridha El Mokni in Aîn Zana-Aîn Draham (Jendouba, NW of Tunisia, North Africa), 16 June 2020.Published as part of Mokni, Ridha El & Verloove, Filip, 2022, Cynosurus peltieri (Pooideae, Poaceae), a poorly known species endemic to the Algerian-Tunisian terrestrial flora: further insights on its occurrence, IUCN Red List assessment, and lectotypification, pp. 292-300 in Phytotaxa 538 (4) on page 295, DOI: 10.11646/phytotaxa.538.4.3, http://zenodo.org/record/634037
FIG. 1 in Artemisia verlotiorum Lamotte (Anthemideae, Asteraceae), an invasive alien from the South African list of prohibited plants, is already present in South Africa
No full textFIG. 1. — Artemisia verlotiorum, specimen no. US01819492 (US Catalog No. 2999681).Published as part of Verloove, Filip, Mosyakin, Sergei L. & Boiko, Ganna V., 2021, Artemisia verlotiorum Lamotte (Anthemideae, Asteraceae), an invasive alien from the South African list of prohibited plants, is already present in South Africa, pp. 117-123 in Adansonia (3) 43 (11) on page 120, DOI: 10.5252/adansonia2021v43a11, http://zenodo.org/record/488324
Cynosurus Linnaeus 1753
No full textIdentification key to the species of the genus Cynosurus in North Africa (translated and modified from Maire 1955; species endemic to North Africa preceded by an *) 1 Inflorescence linear, 3–16 cm long. Ligule very short, up to 1.5 mm long, truncate.........................................................................2 - Inflorescence ovoid to oblong, often (much) shorter. Ligule usually longer, oblong........................................................................3 2 Perennial. Inflorescence clearly lobed and rather lax, with lower branches often extended and distant. Lemmas of sterile florets long-attenuate, with awn 1.00– 1.25 mm long. Fertile spikelets with 1 or 2 florets, with aristate glumes and lemmas.................................................................................................................................................................................................................. * C. peltieri - Annual. Inflorescence dense, not or only obscurely lobed, with short branches. Lemmas of sterile florets shortly mucronate, not aristate. Fertile spikelets with at least 3 florets, with mucronate glumes and muticous lemmas.......................... * C. polybracteatus 3 Perennial, densely tufted....................................................................................................................................................................4 - Annual................................................................................................................................................................................................5 4 Leaves involute, tough, almost pungent, the upper as a continuation of the stem, the inflorescence therefore appearing lateral. Innovations tough and erect, as long as the stem..............................................................................................................* C. junceus - Leaves flat, soft, the upper not as a continuation of the stem. Innovations flaccid and shorter than the stem...............* C. balansae 5 Glumes and lemmas of sterile florets with a long (15–20 mm) awn, distinctly pink coloured at the base, 6–10 times as long as the body of the glume or lemma. Anthers ovoid, 0.4–0.7 mm............................................................................................... C. coloratus - Glumes and lemmas of sterile florets with a shorter awn (6–15 mm), 2–4 times as long as the body of the glume or lemma.Anthers oblong to linear, 0.7–2.5 mm..............................................................................................................................................................6 6 Glumes of the fertile florets as wide as the lemmas. Leaves 3–9 mm wide..................................................................... C. echinatus - Glumes of the fertile florets much narrower than the lemmas. Leaves 1–3 mm wide........................................................ C. elegansPublished as part of Mokni, Ridha El & Verloove, Filip, 2022, Cynosurus peltieri (Pooideae, Poaceae), a poorly known species endemic to the Algerian-Tunisian terrestrial flora: further insights on its occurrence, IUCN Red List assessment, and lectotypification, pp. 292-300 in Phytotaxa 538 (4) on page 298, DOI: 10.11646/phytotaxa.538.4.3, http://zenodo.org/record/634037
New records in vascular plants alien to Tenerife (Spain, Canary Islands)
Full text linkRecent fieldwork by the author in Tenerife, mostly between 2014 and 2019, yielded new records of alien vascular plants.Seventeen taxa (Acacia decurrens, A. mearnsii, Brachychiton diversifolius, Caesalpinia pulcherrima, Ensete ventricosum, Eucalyptus camaldulensis subsp. arida, E. cladocalyx, Euryops chrysanthemoides, Ficus elastica, Lippia alba, Pavonia sepioides, Pittosporum tobira, Populus ×canadensis, Pyrostegia venusta, Ruellia dipteracanthus, Soleirolia soleirolii and Wigandia kunthii) are reported for the first time from the Canary Islands. All were initially introduced on purpose, mostly as ornamentals, and recently started to escape from cultivation. Most of them are ephemerals or only locally established but nearly all have the potential to naturalize in the future. Thirteen additional species are reported for the first time from Tenerife: Atriplex nummularia, Bellis perennis, Chenopodium probstii, Coccoloba uvifera, Commelina benghalensis, Cuphea hyssopifolia, Eragrostis virescens, Lemna minuta, Malvastrum corchorifolium, Plerandra elegantissima, Psidium guajava, Thunbergia alata and Urochloa subquadripara. Finally, some miscellaneous notes are provided on the presence of Balanites aegyptiaca, Callistemon viminalis, Grevillea robusta and Passiflora caerulea in Tenerife
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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