Pub Date : 2023-12-20DOI: 10.11646/phytotaxa.630.3.4
XIN-JU Wang, Jiang-Yun Gao, Neng Li
Serendipita is a prominent fungal genus associated with orchids. In this study, a new species of orchid mycorrhizal fungus, Serendipita officinale, is described and thoroughly studied using morphological and molecular approaches. The fungus was isolated from naturally occurring protocorms of Dendrobium officinale in Chongqing Province, China. S. officinale has been observed to actively promote the germination of seeds and facilitate the seedling development of D. officinale, forming typical mycorrhizal pelotons within protocorm cells. This species is characterized by its characteristics on PDA medium, including the presence of abundant villiform and felty aerial mycelium, uninucleate hyphal cells, and the highest growth rate in terms of colony diameter (78 mm diam. in 2 weeks). Furthermore, analyses of ITS rDNA and LSU sequences also provide additional support for the novelty of this new plant symbiont.
{"title":"Serendipita officinale sp. nov. (Serendipitaceae): a new species of orchid mycorrhizal fungus","authors":"XIN-JU Wang, Jiang-Yun Gao, Neng Li","doi":"10.11646/phytotaxa.630.3.4","DOIUrl":"https://doi.org/10.11646/phytotaxa.630.3.4","url":null,"abstract":"Serendipita is a prominent fungal genus associated with orchids. In this study, a new species of orchid mycorrhizal fungus, Serendipita officinale, is described and thoroughly studied using morphological and molecular approaches. The fungus was isolated from naturally occurring protocorms of Dendrobium officinale in Chongqing Province, China. S. officinale has been observed to actively promote the germination of seeds and facilitate the seedling development of D. officinale, forming typical mycorrhizal pelotons within protocorm cells. This species is characterized by its characteristics on PDA medium, including the presence of abundant villiform and felty aerial mycelium, uninucleate hyphal cells, and the highest growth rate in terms of colony diameter (78 mm diam. in 2 weeks). Furthermore, analyses of ITS rDNA and LSU sequences also provide additional support for the novelty of this new plant symbiont.\u0000 ","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"16 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138956123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-20DOI: 10.11646/phytotaxa.630.3.3
Achala J. Gajanayake, R. Jayawardena, T. Luangharn
Hypocreales comprise a diverse group of fungi that exhibit a wide range of lifestyles in both aquatic and terrestrial environments. A significant number of the identified fungicolous taxa belong to Hypocreales. Samples were collected from Chiang Rai and Chiang Mai Provinces during an investigation on fungicolous fungi in northern Thailand. Based on morphological characteristics and multi-gene phylogenetic analyses of ITS-LSU-tef1α-rpb2 and ITS-LSU-tub2-tef1α, two isolates were identified as Hypomyces sichuanensis (Hypocreaceae) and Mariannaea humicola (Nectriaceae) respectively. This study marks the first documentation of Hypomyces sichuanensis and Mariannaea humicola as fungicolous species from Thailand. Additionally, the study reveals a novel host record for M. humicola on Marasmius sp.
{"title":"Revealing new records of hypocrealean fungicolous fungi from northern Thailand","authors":"Achala J. Gajanayake, R. Jayawardena, T. Luangharn","doi":"10.11646/phytotaxa.630.3.3","DOIUrl":"https://doi.org/10.11646/phytotaxa.630.3.3","url":null,"abstract":"Hypocreales comprise a diverse group of fungi that exhibit a wide range of lifestyles in both aquatic and terrestrial environments. A significant number of the identified fungicolous taxa belong to Hypocreales. Samples were collected from Chiang Rai and Chiang Mai Provinces during an investigation on fungicolous fungi in northern Thailand. Based on morphological characteristics and multi-gene phylogenetic analyses of ITS-LSU-tef1α-rpb2 and ITS-LSU-tub2-tef1α, two isolates were identified as Hypomyces sichuanensis (Hypocreaceae) and Mariannaea humicola (Nectriaceae) respectively. This study marks the first documentation of Hypomyces sichuanensis and Mariannaea humicola as fungicolous species from Thailand. Additionally, the study reveals a novel host record for M. humicola on Marasmius sp.\u0000 ","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"30 10","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138954669","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-14DOI: 10.11646/phytotaxa.630.2.9
SHI-YONG Dong, A. M. A. Mustapeng
N/A
不适用
{"title":"Cyathea arjae, a new synonym of Sphaeropteris elliptica (Cyatheaceae)","authors":"SHI-YONG Dong, A. M. A. Mustapeng","doi":"10.11646/phytotaxa.630.2.9","DOIUrl":"https://doi.org/10.11646/phytotaxa.630.2.9","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"16 6","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138974654","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-14DOI: 10.11646/phytotaxa.630.2.2
A. Glushchenko, Andrei Mironov, Irina Kuznetsova, M. Kulikovskiy
A new species from the genus Cymbella is described based on the morphological study using light and scanning electron microscopy. In the new species, striae are predominantly biseriate except for the central part of the valve, where they become uniseriate. Cymbella alexandrovichii sp. nov. is compared to 8 similar species of Cymbella that possess biseriate striae throughout the valve or only near the apices. Another species with biseriate striae—Gomphocymbellopsis guijiangensis—was included in the comparison based on the similar morphology. In addition, 3 species of Cymbella are compared to Cymbella alexandrovichii sp. nov. herein, despite lacking biseriate striation. The new species can be distinguished from similar taxa by a combination of features: asymmetric lanceolate outline with convex dorsal margin, not protracted cuneate to bluntly rounded valve ends, predominantly biseriate striae and 2–3 ventral stigmata.
{"title":"Cymbella alexandrovichii sp. nov. (Cymbellaceae, Bacillariophyceae), a new cymbelloid diatom species with predominantly biseriate striae from South-East Asia","authors":"A. Glushchenko, Andrei Mironov, Irina Kuznetsova, M. Kulikovskiy","doi":"10.11646/phytotaxa.630.2.2","DOIUrl":"https://doi.org/10.11646/phytotaxa.630.2.2","url":null,"abstract":"A new species from the genus Cymbella is described based on the morphological study using light and scanning electron microscopy. In the new species, striae are predominantly biseriate except for the central part of the valve, where they become uniseriate. Cymbella alexandrovichii sp. nov. is compared to 8 similar species of Cymbella that possess biseriate striae throughout the valve or only near the apices. Another species with biseriate striae—Gomphocymbellopsis guijiangensis—was included in the comparison based on the similar morphology. In addition, 3 species of Cymbella are compared to Cymbella alexandrovichii sp. nov. herein, despite lacking biseriate striation. The new species can be distinguished from similar taxa by a combination of features: asymmetric lanceolate outline with convex dorsal margin, not protracted cuneate to bluntly rounded valve ends, predominantly biseriate striae and 2–3 ventral stigmata.\u0000 ","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"25 24","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138974859","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-14DOI: 10.11646/phytotaxa.630.2.3
Aparna R. Shukla, Nayan Sahu, Imitiyaz A. Hurrah, Mairaj Ahmad, V. V. Wagh
A new species, Geranium janakianum, is described and illustrated here from Uttarakhand State, India. Photographs and a comparison of the diagnostic features of the new taxon with those of the morphologically similar species, G. himalayense and G. wlassovianum, are provided. These three species are characterised by palmatipartite leaves and relatively less lobed leaf segments. However, G. janakianum is clearly distinguished from its close relatives by having a pentamerous leaf lamina, rounded petal apex, micro-morphological features of the seed, mericarp and pollen in addition to the presence of stomata all over the plant.
本文描述并展示了印度北阿坎德邦的一个新物种--Geranium janakianum。本文提供了照片，并比较了该新分类群与形态上相似的 G. himalayense 和 G. wlassovianum 的诊断特征。这三个物种的特征是叶片掌状深裂，叶片裂片相对较少。不过，G. janakianum 与近亲的明显区别在于其叶片为五瓣，花瓣先端呈圆形，种子、分果爿和花粉都具有微形态特征，而且植株上到处都有气孔。
{"title":"Geranium janakianum (Geraniaceae), a new species from Uttarakhand, India","authors":"Aparna R. Shukla, Nayan Sahu, Imitiyaz A. Hurrah, Mairaj Ahmad, V. V. Wagh","doi":"10.11646/phytotaxa.630.2.3","DOIUrl":"https://doi.org/10.11646/phytotaxa.630.2.3","url":null,"abstract":"A new species, Geranium janakianum, is described and illustrated here from Uttarakhand State, India. Photographs and a comparison of the diagnostic features of the new taxon with those of the morphologically similar species, G. himalayense and G. wlassovianum, are provided. These three species are characterised by palmatipartite leaves and relatively less lobed leaf segments. However, G. janakianum is clearly distinguished from its close relatives by having a pentamerous leaf lamina, rounded petal apex, micro-morphological features of the seed, mericarp and pollen in addition to the presence of stomata all over the plant.\u0000 ","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"62 4","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138974957","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-14DOI: 10.11646/phytotaxa.630.2.4
R. C. Sodré, R. S. Secco
During a floristic survey of Euphorbiaceae in cangas (areas of iron-rich soils) of the Serra dos Carajás (Pará State, Brazil), a new species of Euphorbiaceae was found. Croton carajasensis is only known from cangas vegetation and it is herein described and illustrated. The relationships of the new taxon with the most morphologically similar species (C. abaitensis, C. adamantinus, C. harleyi and C. ramosissimus) and its infrageneric position are discussed. We also include a distribution map, comments on habitat, flowering, fruiting, and a preliminary assessment of the species’ conservation status.
在对卡拉哈斯山（巴西帕拉州）cangas（富含铁的土壤地区）的大戟科植物进行植物学调查期间，发现了大戟科的一个新物种。Croton carajasensis 是仅见于坎加斯植被的植物，本文对其进行了描述和说明。本文讨论了该新分类群与形态上最相似的物种（C. abaitensis、C. adamantinus、C. harleyi 和 C. ramosissimus）的关系及其下属地位。我们还绘制了分布图，对栖息地、花期、果期进行了评论，并对该物种的保护状况进行了初步评估。
{"title":"Croton carajasensis, a new species from Serra dos Carajás, Pará, Brazilian Amazon","authors":"R. C. Sodré, R. S. Secco","doi":"10.11646/phytotaxa.630.2.4","DOIUrl":"https://doi.org/10.11646/phytotaxa.630.2.4","url":null,"abstract":"During a floristic survey of Euphorbiaceae in cangas (areas of iron-rich soils) of the Serra dos Carajás (Pará State, Brazil), a new species of Euphorbiaceae was found. Croton carajasensis is only known from cangas vegetation and it is herein described and illustrated. The relationships of the new taxon with the most morphologically similar species (C. abaitensis, C. adamantinus, C. harleyi and C. ramosissimus) and its infrageneric position are discussed. We also include a distribution map, comments on habitat, flowering, fruiting, and a preliminary assessment of the species’ conservation status.\u0000 ","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"334 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138974102","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-14DOI: 10.11646/phytotaxa.630.2.8
P. FERRER-GALLEGO, Ricarda Riina
N/A
不适用
{"title":"Neotypification of the sweet tabaiba, Euphorbia balsamifera (Euphorbiaceae)","authors":"P. FERRER-GALLEGO, Ricarda Riina","doi":"10.11646/phytotaxa.630.2.8","DOIUrl":"https://doi.org/10.11646/phytotaxa.630.2.8","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"28 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138972894","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-14DOI: 10.11646/phytotaxa.630.2.10
Rajeev Kumar Singh, A. M. Reddy, Ravi Kiran Arigela
N/A
不适用
{"title":"Lectotypification of the names Shorea tumbuggaia and S. penicillata (Dipterocarpaceae)","authors":"Rajeev Kumar Singh, A. M. Reddy, Ravi Kiran Arigela","doi":"10.11646/phytotaxa.630.2.10","DOIUrl":"https://doi.org/10.11646/phytotaxa.630.2.10","url":null,"abstract":"<jats:p>N/A</jats:p>","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"599 1","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138973941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-14DOI: 10.11646/phytotaxa.630.2.5
M. D. Miranda
Begonia schizostya, a new species of Begonia sect. Astrothrix from São Paulo state, Brazil is described. Begonia schizostyla is morphologically similar to Begonia bullatifolia and Begonia crispula, with which it is compared. The new species grows in Ombrophilous Dense Submontane Forest, over rocks inside the primary forest of São Sebastião Island. Description, comparisons with related species, etymology, taxonomic comments, illustration and localization map of the new species are provided.
{"title":"A new insular species of Begonia (Begoniaceae) from São Paulo State, Brazil","authors":"M. D. Miranda","doi":"10.11646/phytotaxa.630.2.5","DOIUrl":"https://doi.org/10.11646/phytotaxa.630.2.5","url":null,"abstract":"Begonia schizostya, a new species of Begonia sect. Astrothrix from São Paulo state, Brazil is described. Begonia schizostyla is morphologically similar to Begonia bullatifolia and Begonia crispula, with which it is compared. The new species grows in Ombrophilous Dense Submontane Forest, over rocks inside the primary forest of São Sebastião Island. Description, comparisons with related species, etymology, taxonomic comments, illustration and localization map of the new species are provided. \u0000 ","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"2000 21","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139001891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-14DOI: 10.11646/phytotaxa.630.2.7
Y. Tong, Jing‐Bo Ni, BING-MOU Wang
Primulina liangwaniae, a new species of Gesneriaceae endemic to Guangdong, China, is described and illustrated. The new species is close to P. versicolor in having similar shape and color of corollas, but differs in the significantly smaller leaf blades with dense spreading villus and pubescence and crenate margin, much shorter peduncles, smaller bracts with margin being crenate on upper part and entire on lower part, much shorter pedicels, and narrowly cordate stigma. The flowering times of these two species are also different. A provisional conservation status of DD (Data Deficient) is given for P. liangwaniae.
本文描述了中国广东特有的 Gesneriaceae 新种 Primulina liangwaniae，并绘制了插图。新种与 P. versicolor 接近，花冠的形状和颜色相似，但叶片明显较小，叶片上有密集的平展长柔毛和短柔毛，边缘具圆齿，花序梗短得多，苞片较小，上部边缘具圆齿，下部全缘，花梗短得多，柱头狭心形。这两个物种的花期也不同。梁祝的暂定保护级别为 DD（数据不足）。
{"title":"Primulina liangwaniae (Gesneriaceae), a new species from Guangdong, China","authors":"Y. Tong, Jing‐Bo Ni, BING-MOU Wang","doi":"10.11646/phytotaxa.630.2.7","DOIUrl":"https://doi.org/10.11646/phytotaxa.630.2.7","url":null,"abstract":"Primulina liangwaniae, a new species of Gesneriaceae endemic to Guangdong, China, is described and illustrated. The new species is close to P. versicolor in having similar shape and color of corollas, but differs in the significantly smaller leaf blades with dense spreading villus and pubescence and crenate margin, much shorter peduncles, smaller bracts with margin being crenate on upper part and entire on lower part, much shorter pedicels, and narrowly cordate stigma. The flowering times of these two species are also different. A provisional conservation status of DD (Data Deficient) is given for P. liangwaniae.\u0000 ","PeriodicalId":20114,"journal":{"name":"Phytotaxa","volume":"10 3","pages":""},"PeriodicalIF":1.1,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139002472","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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