The genus Diospyros (Ebenaceae) is highly diverse throughout Malesia, and New Guinea is thought to host c.46 species. Here we present a taxonomic treatment of a group of vegetatively similar species from the region, characterised by the large, chartaceous leaves that develop a peculiarly dark colour when dried. As a result of examination of herbarium collections, we describe two species new to science, Diospyros multimaculata and D. tehno; we exclude the presence of D. rostrata from New Guinea; and we provide a key to these and the three other species with a similar habit, namely, D. janowskyi, D. fusicarpa and D. pulchra.
{"title":"TWO NEW SPECIES OF DIOSPYROS (EBENACEAE) FROM NEW GUINEA","authors":"C. Puglisi, T. Jimbo, Austin Hagwood","doi":"10.24823/ejb.2022.1879","DOIUrl":"https://doi.org/10.24823/ejb.2022.1879","url":null,"abstract":"The genus Diospyros (Ebenaceae) is highly diverse throughout Malesia, and New Guinea is thought to host c.46 species. Here we present a taxonomic treatment of a group of vegetatively similar species from the region, characterised by the large, chartaceous leaves that develop a peculiarly dark colour when dried. As a result of examination of herbarium collections, we describe two species new to science, Diospyros multimaculata and D. tehno; we exclude the presence of D. rostrata from New Guinea; and we provide a key to these and the three other species with a similar habit, namely, D. janowskyi, D. fusicarpa and D. pulchra.","PeriodicalId":39376,"journal":{"name":"Edinburgh Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45957302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Trias‐Blasi, R. Dee, T. Jimbo, B. Jackes, Gaurav Parmar
The three species of Causonis (Vitaceae) that occur on the island of New Guinea, namely C. australasica, C. maritima and C. trifolia, are here revised. We provide synonymy, descriptions, a distribution map and diagnostic character llustrations.
{"title":"Taxonomic revision of Causonis (Vitaceae) in New Guinea","authors":"A. Trias‐Blasi, R. Dee, T. Jimbo, B. Jackes, Gaurav Parmar","doi":"10.24823/ejb.2022.1895","DOIUrl":"https://doi.org/10.24823/ejb.2022.1895","url":null,"abstract":"The three species of Causonis (Vitaceae) that occur on the island of New Guinea, namely C. australasica, C. maritima and C. trifolia, are here revised. We provide synonymy, descriptions, a distribution map and diagnostic character llustrations.","PeriodicalId":39376,"journal":{"name":"Edinburgh Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41857646","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rhododendron obscurum Sleumer (Ericaceae) is a species endemic to Peninsular Malaysia. This name is a later homonym of Rhododendron obscurum Franch. ex Balf.f. In preparation of a revision of the Ericaceae for the Flora of Peninsular Malaysia and of a Red List assessment of this species by the Global Conservation Consortium for Rhododendron, a new name, Rhododendron benomense Rafidah & A.C.Elliott, is proposed here.
{"title":"RHODODENDRON BENOMENSE RAFIDAH & A.C.ELLIOTT (ERICACEAE), A NEW NAME FOR RHODODENDRON OBSCURUM SLEUMER, A SPECIES ENDEMIC TO PENINSULAR MALAYSIA","authors":"A. Rafidah, A. Elliott","doi":"10.24823/ejb.2022.413","DOIUrl":"https://doi.org/10.24823/ejb.2022.413","url":null,"abstract":"Rhododendron obscurum Sleumer (Ericaceae) is a species endemic to Peninsular Malaysia. This name is a later homonym of Rhododendron obscurum Franch. ex Balf.f. In preparation of a revision of the Ericaceae for the Flora of Peninsular Malaysia and of a Red List assessment of this species by the Global Conservation Consortium for Rhododendron, a new name, Rhododendron benomense Rafidah & A.C.Elliott, is proposed here.","PeriodicalId":39376,"journal":{"name":"Edinburgh Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48952815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Six new species are described from Thailand: Wurfbainia ellipticarpa, W. geostachyoides, W. globosa, W. longiflora, W. parviflora and W. yingyongii. A line drawing and photographs, information on phenology, distribution, ecology and etymology, and a proposed IUCN conservation category are provided for each species. A key to the species of Wurfbainia in Thailand is also provided.
{"title":"SIX NEW SPECIES OF WURFBAINIA (ZINGIBERACEAE) FROM THAILAND","authors":"W. Kaewsri, S. Sangvirotjanapat","doi":"10.24823/ejb.2022.369","DOIUrl":"https://doi.org/10.24823/ejb.2022.369","url":null,"abstract":"Six new species are described from Thailand: Wurfbainia ellipticarpa, W. geostachyoides, W. globosa, W. longiflora, W. parviflora and W. yingyongii. A line drawing and photographs, information on phenology, distribution, ecology and etymology, and a proposed IUCN conservation category are provided for each species. A key to the species of Wurfbainia in Thailand is also provided.","PeriodicalId":39376,"journal":{"name":"Edinburgh Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47928082","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eastern Minas Gerais has been historically neglected regarding biodiversity sampling effort. However, recent botanical explorations have revealed several new taxa for its flora, especially from disjunct fragments of campos rupestres vegetation, which form a mosaic with granitic inselbergs in the region. In this article, we add four new species of Pleroma (Melastomataceae) to the growing list of new taxa: P. brevicomosum, P. caetanoi, P. miconiifolium and P. petrophylax. We provide descriptions, detailed photographs, taxonomic comparisons, a distribution map and conservation status assessments for these new taxa. All four species are assessed under a category of threat, highlighting the need for conservation actions in these biodiverse albeit still poorly known areas.
{"title":"Four new species of Pleroma (Melastomataceae) from campos rupestres and vegetation on granitic inselbergs in Eastern Minas Gerais, Brazil","authors":"R. Goldenberg, P. Gonella, F. S. Meyer","doi":"10.24823/ejb.2022.624","DOIUrl":"https://doi.org/10.24823/ejb.2022.624","url":null,"abstract":"Eastern Minas Gerais has been historically neglected regarding biodiversity sampling effort. However, recent botanical explorations have revealed several new taxa for its flora, especially from disjunct fragments of campos rupestres vegetation, which form a mosaic with granitic inselbergs in the region. In this article, we add four new species of Pleroma (Melastomataceae) to the growing list of new taxa: P. brevicomosum, P. caetanoi, P. miconiifolium and P. petrophylax. We provide descriptions, detailed photographs, taxonomic comparisons, a distribution map and conservation status assessments for these new taxa. All four species are assessed under a category of threat, highlighting the need for conservation actions in these biodiverse albeit still poorly known areas.","PeriodicalId":39376,"journal":{"name":"Edinburgh Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43823453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Eugenia pachakumachiana Arum. & Murugan, a species from Megamalai Wildlife Sanctuary, southern Western Ghats of Tamil Nadu, India, and new to science is described and illustrated. The species is compared with its closely allied species Eugenia rottleriana Wight & Arn. and incorporated into a key of Indian Eugenia species.
{"title":"EUGENIA PACHAKUMACHIANA (MYRTACEAE), A NEW SPECIES FROM THE WESTERN GHATS, INDIA","authors":"C. Murugan, S. Arumugam","doi":"10.24823/ejb.2022.1938","DOIUrl":"https://doi.org/10.24823/ejb.2022.1938","url":null,"abstract":"Eugenia pachakumachiana Arum. & Murugan, a species from Megamalai Wildlife Sanctuary, southern Western Ghats of Tamil Nadu, India, and new to science is described and illustrated. The species is compared with its closely allied species Eugenia rottleriana Wight & Arn. and incorporated into a key of Indian Eugenia species.","PeriodicalId":39376,"journal":{"name":"Edinburgh Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44039549","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dionysia splendens Alipour, Mehregan & Lidén, sp. nov., from Fars, Iran, is a unique species that cannot be easily accommodated in any hitherto recognised section of the genus and is immediately recognised by its large flowers and pectinate leaves with very broad pale and thick midvein. It agrees with Dionysia cespitosa Duby (Boiss.) in the small flat leaves, stalked inflorescence with large bracts, and few large ellipsoid seeds, but differs in the tubular calyx and large purplish-blue corolla. It is also somewhat reminiscent of Dionysia viva Lidén & Zetterl. in growth habit and inflorescence structure, but that species has large irregularly dentate leaves, yellow corolla and numerous small angular seeds. Dionysia splendens is so far known from a single locality with c.200 mature individuals. An updated key to Dionysia species in the Zagros mountains is provided.
{"title":"DIONYSIA SPLENDENS (PRIMULACEAE), A NEW SPECIES FROM THE FARS PROVINCE OF IRAN","authors":"S. Alipour, I. Mehregan, M. Lidén","doi":"10.24823/ejb.2021.397","DOIUrl":"https://doi.org/10.24823/ejb.2021.397","url":null,"abstract":"Dionysia splendens Alipour, Mehregan & Lidén, sp. nov., from Fars, Iran, is a unique species that cannot be easily accommodated in any hitherto recognised section of the genus and is immediately recognised by its large flowers and pectinate leaves with very broad pale and thick midvein. It agrees with Dionysia cespitosa Duby (Boiss.) in the small flat leaves, stalked inflorescence with large bracts, and few large ellipsoid seeds, but differs in the tubular calyx and large purplish-blue corolla. It is also somewhat reminiscent of Dionysia viva Lidén & Zetterl. in growth habit and inflorescence structure, but that species has large irregularly dentate leaves, yellow corolla and numerous small angular seeds. Dionysia splendens is so far known from a single locality with c.200 mature individuals. An updated key to Dionysia species in the Zagros mountains is provided.","PeriodicalId":39376,"journal":{"name":"Edinburgh Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42692446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dionysia jamzadiae Lidén, M.Irvine, Alvén & Mehregan, from the east Zagros Mountains, Fars, Iran, is described as new to science. It belongs in section Dionysiopsis and is similar to D. oreodoxa Bornm. but differs in, for example, its sparsely glandular hairy or almost glabrous corolla with emarginated lobes (densely non-glandular pubescent with entire lobes in D. oreodoxa). Dionysia jamzadiae is known from two places and is quite abundant at the type locality.
{"title":"DIONYSIA JAMZADIAE (PRIMULACEAE), A NEW SPECIES FROM THE FARS PROVINCE OF IRAN","authors":"M. Lidén, M. Irvine, A. Alvén, I. Mehregan","doi":"10.24823/ejb.2021.396","DOIUrl":"https://doi.org/10.24823/ejb.2021.396","url":null,"abstract":"Dionysia jamzadiae Lidén, M.Irvine, Alvén & Mehregan, from the east Zagros Mountains, Fars, Iran, is described as new to science. It belongs in section Dionysiopsis and is similar to D. oreodoxa Bornm. but differs in, for example, its sparsely glandular hairy or almost glabrous corolla with emarginated lobes (densely non-glandular pubescent with entire lobes in D. oreodoxa). Dionysia jamzadiae is known from two places and is quite abundant at the type locality.","PeriodicalId":39376,"journal":{"name":"Edinburgh Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48731264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Polyethylene glycol (PEG) is a non-carcinogenic, water-soluble polymer of ethylene oxide that has found wide applicability in industry and medicine, and has been used to embed and section small animal and plant tissues. Here we investigate the use of PEG for the rapid embedding of larger plant tissues. Ovaries of Musa velutina, Heliconia psittacorum and eight other species were embedded with a mixture of PEG 1450 and PEG 4000. It was found that tissues up to 6.5 × 10 mm could easily be embedded and sectioned in PEG. Embedded tissues could be stored at room temperature for up to 5 days with no detrimental effects. Sections were easily cut at 8–15 μm on a rotary microtome. PEG embedding resulted in equal or better tissue differentiation, better retention of cell inclusions, and reduced shrinkage compared with paraffin embedding. The process was also faster, requiring only 3–6 h compared with the 2 days needed for paraffin embedding. PEG is a rapid-embedding medium suitable for use with even large plant tissues.
{"title":"USE OF POLYETHYLENE GLYCOL (PEG, CARBOWAX) AS AN EMBEDDING MEDIUM PRODUCES RESULTS COMPARABLE TO PARAFFIN","authors":"A. Romanov, K. Ly, Bruce Kirchoff","doi":"10.24823/ejb.2021.382","DOIUrl":"https://doi.org/10.24823/ejb.2021.382","url":null,"abstract":"Polyethylene glycol (PEG) is a non-carcinogenic, water-soluble polymer of ethylene oxide that has found wide applicability in industry and medicine, and has been used to embed and section small animal and plant tissues. Here we investigate the use of PEG for the rapid embedding of larger plant tissues. Ovaries of Musa velutina, Heliconia psittacorum and eight other species were embedded with a mixture of PEG 1450 and PEG 4000. It was found that tissues up to 6.5 × 10 mm could easily be embedded and sectioned in PEG. Embedded tissues could be stored at room temperature for up to 5 days with no detrimental effects. Sections were easily cut at 8–15 μm on a rotary microtome. PEG embedding resulted in equal or better tissue differentiation, better retention of cell inclusions, and reduced shrinkage compared with paraffin embedding. The process was also faster, requiring only 3–6 h compared with the 2 days needed for paraffin embedding. PEG is a rapid-embedding medium suitable for use with even large plant tissues.","PeriodicalId":39376,"journal":{"name":"Edinburgh Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48413666","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The new species Litsea anamalayana Robi & Udayan, from Kerala, India, is described and illustrated. A detailed description is given, together with information on its distribution and ecology. Photographs of the new species are provided, as well as a comparison with the morphologically similar L. glabrata (Wall. ex Nees) Hook.f.
{"title":"LITSEA ANAMALAYANA (LAURACEAE) A NEW SPECIES FROM NELLIYAMPATHY HILLS, INDIA.","authors":"Robi A. J., Udayan P.S.","doi":"10.24823/ejb.2021.373","DOIUrl":"https://doi.org/10.24823/ejb.2021.373","url":null,"abstract":"The new species Litsea anamalayana Robi & Udayan, from Kerala, India, is described and illustrated. A detailed description is given, together with information on its distribution and ecology. Photographs of the new species are provided, as well as a comparison with the morphologically similar L. glabrata (Wall. ex Nees) Hook.f.","PeriodicalId":39376,"journal":{"name":"Edinburgh Journal of Botany","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-11-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41370587","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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