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FIGURE 4 in First molecular and morphometric data for the genus Allmania (Amaranthaceae), with the description of a new species from India
No full textFIGURE 4. Box plots showing the variability of the diagnostic characters between Allmania sp. and A. nodiflora: A) length of tepals (mm), B) width of gynoecium (mm), C) diameter of seeds (mm), D) length of bracts (mm), E) length of peduncle (mm), F) number of flowers per synflorescence.Published as part of Sindhu, Arya, Iamonico, Duilio, Suresh, Veerankutty & Kumar, Venugopalan Nair Saradhamma Anil, 2022, First molecular and morphometric data for the genus Allmania (Amaranthaceae), with the description of a new species from India, pp. 221-237 in Phytotaxa 559 (3) on page 226, DOI: 10.11646/phytotaxa.559.3.1, http://zenodo.org/record/702167
Allmania R. Brown ex Wight 1834
No full textAllmania R.Brown ex Wight (1834: 226). Type: Allmania nodiflora (L.) R.Brown ex Wight (1834: 226) ≡ Celosia nodiflora Linnaeus (1753: 205)Published as part of Sindhu, Arya, Iamonico, Duilio, Suresh, Veerankutty & Kumar, Venugopalan Nair Saradhamma Anil, 2022, First molecular and morphometric data for the genus Allmania (Amaranthaceae), with the description of a new species from India, pp. 221-237 in Phytotaxa 559 (3) on page 230, DOI: 10.11646/phytotaxa.559.3.1, http://zenodo.org/record/702167
Amaranthus rajasekharii (Amaranthaceae), a new species from Kerala (SW-India)
No full textA new species of Amaranthus from Kerala (SW-India)-Amaranthus rajasekharii-is described and illustrated. Macro- and micro-morphological descriptions (with SEM analysis of pollen and seed), as well as original photos and drawings were provided. The new species is similar to A. dubius, from which it differs by stem color, inflorescence structure, gynoecium colour, number of stamens, and shape and lenght of tepals and bracts in pistillate flowers, seed ornamentation, and pollen architecture
Miliusa agasthyamalana V. S. A. Kumar & Sindhu Arya 2022, sp. nov.
No full textMiliusa agasthyamalana V.S.A. Kumar & Sindhu Arya, sp. nov. (Figs. 1,2) Type:— INDIA. Kerala: Thiruvananthapuram district, Athirumala, 8.970 N 77.30 E, 1200 m, 08 May 2020 (with flowers), Govind & VSA Kumar 590 (holotype UCBD; isotypes UCBD, KFRI). Diagnosis: — Miliusa agasthyamalana resembles M. wightiana Hooker & Thomson (1855: 285) with respect to solitary flowers, leaves with acuminate apex and ovate shape of the inner petal but is distinct with respect to the size of tree (small tree reaching a height of 9 m in M. agasthyamalana vs. medium sized tree reaching a height of 15 m in M. wightiana), shape of leaves (ovate to ovate lanceolate vs. elliptic-lanceolate), hairiness on secondary veins (glabrous vs. pubescent), length of pedicel (3.0– 5.5 mm vs. 1.5 –2.5 mm), sepals (Ovate or obovate with hair along margin vs. oblong and pubescent throughout.)inner petals (1.5–2.2cm fleshy, yellow with pink stripes or spots vs. 10–15 × 6–8 mm non-fleshy, greenish), staminal connectives (included vs. apiculate), number of carpels per flower (17–22 vs. 10–15) and shape of monocarps (dumbbell-shaped with round apex vs. pisiform with acute apex). The new species also shows resemblance to M. paithalmalayana Josekutty (2016: 287) reported from the Paithalamala range of Western Ghats with respect to the solitary flowers, included staminal connectives and linear carpels but is very distinct with respect to the inner petals (ovate, fleshy, yellow with pink stripes in M. agasthyamalana vs. elliptic to lanceolate, nonfleshy with purple color in M. paithalmalayana), sepals (ovate or obovate with hairs along margin vs. lanceolate, glabrous) number of carpels per flower (18–22 vs. 10–15), shape of monocarp (dumbbell shaped with round apex, green with purple spots vs. oblong, crimson red) Description: —Evergreen trees, 6–9 m high; bark brown, rough, branches terete, drooping, often spreading, young parts gloss, glabrous. Leaves chartaceous, 5.0–16.0 × 1.5–5.0 cm, ovate or ovate lanceolate, unequally rounded at base, wavy and slightly folded along margins, caudate-acuminate at apex, glabrous, subsessile or petiole to 1 mm long, terete, glabrous, black; lateral nerves 6–8 pairs, intramarginal nerves looping; tertiary nerves inconspicuous, nervules obscure, Flowers solitary, pseudo-terminal (slightly above and opposite the terminal leaf) yellowish-pink; pedicels 3.5–5.5 cm long, glabrous, glossy, yellowish to light green; bracts 2, ovate-triangular, acute, ca 0.5 mm long, hairy outside; sepals 3, ca 1.0 × 1.2 mm, ovate-lanceolate, apex acute, adaxial side glabrous in the middle, pubescent along margin; outer petals 3, ovate or obovate, apex acute, hairy along margins, slightly curved inwards, ca 3.0 × 3.5 mm; inner petals 3, ovate or obovate, 1–1.4 × 0.8–1.0 cm, thick ca 1mm long, fleshy, glabrous, thickly hooded on the lower half, cohering when young along margins, yellow with pink streaks inside and pink spots outside; torus ovoid, long with white hairs; stamens 15–20, anthers ca 0.5 mm long, connective included; carpels 17–22, linear in outline, slightly curved, ca 1 mm long, glabrous; stigma obovate-acute, about half the height of the ovary, ovules 1 or 2. Fruiting stalk terete, glabrous, dark brown, 7–9 cm long; monocarps usually 8–15, each 1–1.2 × 1–1.5 cm across, more or less dumbbell-shaped, green with purple stripes. Seeds 1–2. Phenology:— Flowering and fruiting occur during April to July. Etymology:— The specific epithet refers to the type locality, Agasthyamala Biosphere reserve in Thiruvananthapuram District of Kerala, south India. Distribution and ecology:— Miliusa agasthyamalana is known only from the type locality, between 1000–1250 m elevations. It grows in the interior of the evergreen forest range of Athirumala, with a total of two individual only. Each individual is separated by a distance range of 1.5 km. The associated species include Garcinia imberti Bourdillion (1899: 349) (Clusiaceae) and Myristica beddomei King (1891: 327) (Myristicaceae).The type locality Athirumala forms the base station of Agasthyamala biosphere reserve that is rich with moist deciduous forest, semi evergreen forest, grassland, evergreen forest and at the end, large rock formations. It has a unique biodiversity and is noted for the presence of many endemic medicinal herbs. The high conservation value of the area relies on its rich biodiversity, geography and hydrology and hence protected as a biosphere reserve. Taxonomic notes:—The new species is similar to Miliusa campanulate Pierre (1881: 41) group (Chaowasku & Kessler 2013), based on the tightly appressed nature of the inner petals (Chaowasku & Kessler 2013) and Indian species to the Miliusa nilagirica group (Van Heusden 1992) in having recurved inner petals. Miliusa agasthyamalana shows similarity to Miliusa tirunelvelica Murugan, Manickam, Sundaresan & Jothi (2004: 102) with respect to 6–8 pairs of secondary veins in leaf and included connectives but is distinct with respect to many characters summarized in Table 1. Conservation status:— There is only a single population, with about 2 mature individuals, occupying an area of less than 2 km 2. The estimated Extent of Occurrence (EOO) is 25 km 2 and the Area of Occupancy (AOO) is less than 2 km 2. The number of mature individuals is estimated to be two, when considering all the localities. Since these locations are inside a protected area, the likelihood of a decline due to anthropogenic activity is small. Nevertheless, we recommend that the species be categorized as Critically Endangered (CR) in the category [B2a, b(v)] (IUCN 2020). The area is well protected but chances of forest fires pose a high threat to this area. Selected specimen examined (paratypes):— INDIA. Kerala Thiruvananthapuram district, Athirumala 1110 m, 8.970 N 77.30 E, 25 May 2020 Govind 778 (UCBD), 30 June 2020, S . Arya & V. S. A. Kumar 790 (UCBD), 24 June 2021 S . Arya & V. S. A. Kumar 1226 (UCBD).Published as part of Arya, Sindhu & Kumar, Venugopalan Nair Saradamma Anil, 2022, Miliusa agasthyamalana (Annonaceae), a new species from southern Western Ghats, India, pp. 252-258 in Phytotaxa 552 (4) on pages 253-257, DOI: 10.11646/phytotaxa.552.4.2, http://zenodo.org/record/678581
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
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
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