Known from trees and the tropics: new insights into the species complex.

The species complex (FLSC) currently comprises 11 phylogenetic species, including accepted names such as , , and , which have mostly been reported in association with citrus and coffee. Many varieties were documented by Wollenweber & Reinking (1935), which is indicative of a wider diversity of species within this group. The lack of type material in some cases, especially for the older names, means that definition by molecular phylogeny is very difficult.

: an important genus of canker pathogens.

species have commonly been reported as important plant pathogenic fungi with wide host ranges and geographic distributions. With the increase in the number of cryptic species being described, a comprehensive global taxonomic revision of the genus is required. The present study includes 399 isolates from 32 countries.

XII International Mycological Congress: report of Congress action on nomenclature proposals relating to fungi.

Procedures, appointments and outcomes of the Fungal Nomenclature Session (FNS) of the XII International Mycological Congress (IMC12) are summarized, including the composition of the Fungal Nomenclature Bureau and the Nominating Committee of the IMC. Between 124 and 322 mycologists attended the three sessions of the FNS, at which formal proposals to amend Chapter F of the International Code of Nomenclature for algae, fungi, and plants were debated. The 15 proposals considered included eight "from the floor", five of which were withdrawn prior to the FNS.

Phyllosticta paracitricarpa is synonymous with the EU quarantine fungus P. citricarpa based on phylogenomic analyses.

Phyllosticta citricarpa is an important citrus-pathogen and a quarantine organism in the European Union. Its recently described relative, P. paracitricarpa, is very closely related and not listed as a quarantine organism.

Fungal Planet description sheets: 1614-1696.

Novel species of fungi described in this study include those from various countries as follows: , in leaves of , among deep leaf litter, from uredinium of on , on well-rotted twigs and litter in mixed wet sclerophyll and subtropical rainforest. , on twigs of , on bark, in savannas with shrubs and trees. , on leaves of , (incl.

Species diversity in .

Species of are commonly associated with leaf and fruit spots on diverse plant hosts in sub-tropical and tropical regions. spp. have mycosphaerella-like sexual morphs, but represent a distinct genus in (, ).

New and Interesting Fungi. 7.

Two new genera, 17 new species, two epitypes, and six interesting new host and / or geographical records are introduced in this study. New genera include: (based on ) and (based on ). New species include: (from hypersaline sea water, Qatar), (from mycangia of , USA), (on leaves of , Brazil), (from pre-stored , South Africa), (from soil, South Africa), (from dead capsule of , Germany), (from house dust, Canada), (from soil, South Africa), (on ascomata of ascomycete on twigs of , South Africa), (on leaf litter, Spain), (on larva, Thailand), (from soil, South Africa), (from pasture mulch, South Africa), (from soil, South Africa), (on stem, bark of living tree of sp.

Revising and allied genera in .

(, ) species are common soil-borne fungi, endophytes, epiphytes, and saprotrophs. Sexual morphs of spp were placed in the genus , which was further segregated into the six subgenera , , , , , and . However, with the end of dual nomenclature, became the single depository for sexual and asexual morph-typified species.

Redisposition of acremonium-like fungi in .

is acknowledged as a highly ubiquitous genus including saprobic, parasitic, or endophytic fungi that inhabit a variety of environments. Species of this genus are extensively exploited in industrial, commercial, pharmaceutical, and biocontrol applications, and proved to be a rich source of novel and bioactive secondary metabolites. has been recognised as a taxonomically difficult group of ascomycetes, due to the reduced and high plasticity of morphological characters, wide ecological distribution and substrate range.

Fungal Planet description sheets: 1478-1549.

Novel species of fungi described in this study include those from various countries as follows: , on whitefly, on bark of , from soil under , on leaf spot of , and on leaf spot of . , on fully submersed siliceous schist in high-mountain streams, and on the lower part and apothecial discs of on a twig. , on decaying wood, from moist soil with leaf litter, on a trunk of a living unknown hardwood tree species, and on dead twigs of unidentified plant.

New and Interesting Fungi. 6.

Three new genera, six new species, three combinations, six epitypes, and 25 interesting new host and / or geographical records are introduced in this study. New genera: (based on ), and (based on ). New species: (from cooling pad water, USA, (on dead wood of sp.

Fungal Species Causing Canker and Wilt of and Evidence of Their Association by Bark Beetles in Italy.

Field surveys conducted during 2021 and 2022 in Western Sicily, Italy, revealed the presence of common fig trees severely affected by trunk and crown root canker and bark cracking. Moreover, in conjunction with the symptomatic tissues, the same surveyed plants showed the presence of bark beetle holes and internal wood galleries. The predominant beetle was previously reported attacking figs in Sicily.

New and Interesting Fungi. 5.

Nine new genera, 17 new species, nine new combinations, seven epitypes, three lectotypes, one neotype, and 14 interesting new host and / or geographical records are introduced in this study. New genera: (based on ), (based on ), (based on ), (based on ), (based on ), (based on ), (based on ), (based on ), (based on ). New species: (on leaves of , Belgium), (on leaves of , Colombia), (on twigs of , Colombia), (on dead leaves of subsp supporting , Australia), (on leaves of , South Africa), (on , Netherlands), (on leaves of sp.

diversity associated with the interaction in Ethiopia.

production is seriously threatened by the root parasitic weeds (RPWs) and in sub-Saharan Africa. Research has shown that control depends on eliminating its seed reserves in soil. Several species of the genus ( ), which have been isolated from diseased plants have proven to be highly pathogenic to all developmental stages of these RPWs.

causing leaf spot and wilt on plants in the Czech Republic.

L. is one of the largest genera of Ranunculaceae, accommodating over 300 plant species (Wang & Li 2005). They are mostly flowering creepers commonly grown as ornamentals.

Genera of phytopathogenic fungi: GOPHY 4.

This paper is the fourth contribution in the Genera of Phytopathogenic Fungi (GOPHY) series. The series provides morphological descriptions and information about the pathology, distribution, hosts and disease symptoms, as well as DNA barcodes for the taxa covered. Moreover, 12 whole-genome sequences for the type or new species in the treated genera are provided.

and allied fusarioid taxa (FUSA). 1.

Seven species complexes are treated, namely species complex (FASC) (two species), species complex (FBSC) (five species), species complex (FBURSC) (three species), species complex (FCAMSC) (three species), species complex (FCSC) (eight species), species complex (FCCSC) (five species) and the species complex (FCOSC) (four species). New species include from soil (Zimbabwe), and from soil associated with (Netherlands). New combinations include and Newly validated taxa include , , , and .

Fungal Planet description sheets: 1383-1435.

Novel species of fungi described in this study include those from various countries as follows: , , and on soil, from stem cankers of , from stem of , and from leaves of , as endophyte from roots of , from stem of , from leaves of × and from roots of , from intertidal wood and (incl. gen. nov.

Enemy or ally: a genomic approach to elucidate the lifestyle of Phyllosticta citrichinaensis.

Members of the fungal genus Phyllosticta can colonize a variety of plant hosts, including several Citrus species such as Citrus sinensis (orange), Citrus limon (lemon), and Citrus maxima (pomelo). Some Phyllosticta species have the capacity to cause disease, such as Citrus Black Spot, while others have only been observed as endophytes. Thus far, genomic differences underlying lifestyle adaptations of Phyllosticta species have not yet been studied.

Citizen science project reveals novel fusarioid fungi () from urban soils.

Soil fungi play a crucial role in soil quality and fertility in being able to break down organic matter but are frequently also observed to play a role as important plant pathogens. As part of a Citizen Science Project initiated by the Westerdijk Fungal Biodiversity Institute and the Utrecht University Museum, which aimed to describe novel fungal species from Dutch garden soil, the diversity of fusarioid fungi ( and other fusarioid genera), which are members of () was investigated. Preliminary analyses of ITS and LSU sequences from more than 4 750 isolates obtained indicated that 109 strains belong to this generic complex.

Fungal Planet description sheets: 1284-1382.

Novel species of fungi described in this study include those from various countries as follows: , from coastal sea sand. , on soil, on dead wood, from roots and leaves of and from capsules of , (incl. gen.