scholarly journals A revision of the genus Ruagea (Meliaceae: Melioideae)

Kew Bulletin ◽  
2021 ◽  
Author(s):  
Terence D. Pennington ◽  
Amy Barker ◽  
Blanca M. Rojas-Andres

SummaryThe neotropical genus Ruagea H.Karst. is revised. Fifteen species are recognised, including three R. obovata T.D.Penn., R. beckii T.D.Penn. and R. parvifructa T.D.Penn. which are described as new to science. A key to the species is presented, along with information on the morphology, distribution, ecology, conservation assessments, local names, uses and field characters. All species are mapped and illustrated with line drawings and all specimens seen are cited in a list of exsiccatae.

Kew Bulletin ◽  
2021 ◽  
Author(s):  
Aaron P. Davis ◽  
Franck Rakotonasolo

SummarySix new species of Coffea are described as new to science: Coffea callmanderi, C. darainensis, C. kalobinonensis, C. microdubardii, C. pustulata and C. rupicola. All six species are endemic to northern Madagascar; four species are narrowly endemic to specific forest areas. Associated information, including distribution maps, conservation assessments, phenology and taxonomic notes are provided, and two species are illustrated with line drawings.


2008 ◽  
Vol 65 (2) ◽  
pp. 161-347 ◽  
Author(s):  
Zhaoran Xu ◽  
†B. L. Burtt ◽  
L. E. Skog ◽  
D. J. Middleton

The genus Paraboea Ridl. (Gesneriaceae) is revised. It is found in Bangladesh, Bhutan, Burma, Cambodia, southern China, India (Assam), Indonesia (Sumatra, Java, Borneo, Sulawesi), Laos, Malaysia (Peninsular and Borneo), Philippines, Thailand and Vietnam, mostly from limestone habitats. Eighty-nine species and five varieties are recognised. Four new species and one new variety are described: Paraboea apiensis Z.R.Xu, Paraboea argentea Z.R.Xu, Paraboea graniticola Z.R.Xu, Paraboea paraprimuloides Z.R.Xu and Paraboea harroviana var. ovata Z.R.Xu. In addition two taxa are highlighted as possible new species but are not described here due to insufficient material. The treatment includes one new combination for a species, Paraboea harroviana (Craib) Z.R.Xu, one new combination for a variety, Paraboea schefferi var. ambigua (C.B.Clarke) Z.R.Xu, one new status for a variety, Paraboea rufescens var. tomentosa (Barnett) Z.R.Xu, and one new name, Paraboea primuloides Z.R.Xu. Fifty-one line drawings are included. A key is presented and all taxa are described. Preliminary conservation assessments are given.


2020 ◽  
Vol 45 (2) ◽  
pp. 277-293
Author(s):  
Ricardo Pacifico ◽  
Frank Almeda ◽  
Karina Fidanza

Abstract—Seven new species of the neotropical genus Microlicia are proposed (Microlicia capitata, M. coriacea, M. mutabilis, M. piranii, M. polychaeta, M. repanda, and M. sparsifolia). All seven species are known only from the state of Minas Gerais, Brazil, mainly in the Diamantina Plateau and/or the Serra do Cabral. Diagnoses, line drawings, distribution maps, notes on diagnostic characters, conservation assessments, and habitat and phenology are provided.


PhytoKeys ◽  
2018 ◽  
Vol 106 ◽  
pp. 1-223 ◽  
Author(s):  
Tiina Särkinen ◽  
Peter Poczai ◽  
Gloria E. Barboza ◽  
Gerard M. van der Weerden ◽  
Maria Baden ◽  
...  

The Morelloid clade, also known as the black nightshades or “Maurella” (Morella), is one of the 10 major clades withinSolanumL. The pantropical clade consists of 75 currently recognised non-spiny herbaceous and suffrutescent species with simple or branched hairs with or without glandular tips, with a centre of distribution in the tropical Andes. A secondary centre of diversity is found in Africa, where a set of mainly polyploid taxa occur. A yet smaller set of species is found in Australasia and Europe, includingSolanumnigrumL., the type of the genusSolanum. Due to the large number of published synonyms, combined with complex morphological variation, our understanding of species limits and diversity in the Morelloid clade has remained poor despite detailed morphological studies carried out in conjunction with breeding experiments. Here we provide the first taxonomic overview since the 19thcentury of the entire group in the Old World, including Africa, Asia, Australia, Europe and islands of the Pacific. Complete synonymy, morphological descriptions, distribution maps and common names and uses are provided for all 19 species occurring outside the Americas (i.e. Africa, Asia, Australia, Europe and islands of the Pacific). We treat 12 species native to the Old World, as well as 7 taxa that are putatively introduced and/or invasive in the region. The current knowledge of the origin of the polyploid species is summarised. A key to all of the species occurring in the Old World is provided, together with line drawings and colour figures to aid identification both in herbaria and in the field. Preliminary conservation assessments are provided for all species.


Phytotaxa ◽  
2021 ◽  
Vol 494 (1) ◽  
pp. 103-112
Author(s):  
PHONGSAKORN KOCHAIPHAT ◽  
PAWEENA TRAIPERM ◽  
TIMOTHY M.A. UTTERIDGE

As part of a comprehensive review of the genus Erycibe (Convolvulaceae) in South-East Asia, three new species are described and illustrated: E. sangiheensis Kochaiph. & Utteridge sp. nov. from Sangihe Island, North Sulawesi Province in Indonesia and two from Borneo (E. trichocarpa Kochaiph. & Utteridge sp. nov. and E. brunneopilosa Kochaiph. & Utteridge sp. nov.). A distribution map, line drawings and preliminary IUCN conservation assessments are provided for all three species.


2019 ◽  
Vol 4 (6) ◽  
pp. 1482-1488
Author(s):  
Jennifer J. Thistle

Purpose Previous research with children with and without disabilities has demonstrated that visual–perceptual factors can influence the speech of locating a target on an array. Adults without disabilities often facilitate the learning and use of a child's augmentative and alternative communication system. The current research examined how the presence of symbol background color influenced the speed with which adults without disabilities located target line drawings in 2 studies. Method Both studies used a between-subjects design. In the 1st study, 30 adults (ages 18–29 years) located targets in a 16-symbol array. In the 2nd study, 30 adults (ages 18–34 years) located targets in a 60-symbol array. There were 3 conditions in each study: symbol background color, symbol background white with a black border, and symbol background white with a color border. Results In the 1st study, reaction times across groups were not significantly different. In the 2nd study, participants in the symbol background color condition were significantly faster than participants in the other conditions, and participants in the symbol background white with black border were significantly slower than participants in the other conditions. Conclusion Communication partners may benefit from the presence of background color, especially when supporting children using displays with many symbols.


Author(s):  
Robert J. Hartsuiker ◽  
Lies Notebaert

A picture naming experiment in Dutch tested whether disfluencies in speech can arise from difficulties in lexical access. Speakers described networks consisting of line drawings and paths connecting these drawings, and we manipulated picture name agreement. Consistent with our hypothesis, there were more pauses and more self-corrections in the low name agreement condition than the high name agreement condition, but there was no effect on repetitions. We also considered determiner frequency. There were more self-corrections and more repetitions when the picture name required the less frequent (neuter-gender) determiner “het” than the more frequent (common-gender) determiner “de”. These data suggest that difficulties in distinct stages of language production result in distinct patterns of disfluencies.


Author(s):  
Toby J. Lloyd-Jones ◽  
Juergen Gehrke ◽  
Jason Lauder

We assessed the importance of outline contour and individual features in mediating the recognition of animals by examining response times and eye movements in an animal-object decision task (i.e., deciding whether or not an object was an animal that may be encountered in real life). There were shorter latencies for animals as compared with nonanimals and performance was similar for shaded line drawings and silhouettes, suggesting that important information for recognition lies in the outline contour. The most salient information in the outline contour was around the head, followed by the lower torso and leg regions. We also observed effects of object orientation and argue that the usefulness of the head and lower torso/leg regions is consistent with a role for the object axis in recognition.


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