Fungalpedia – Note 49 Naevia


Naevia Fr.

Index Fungorum Identifier 3413; Facesoffungi number; MycoBank, GenBank, Fig 1.

Naevia was established by Fries (1824) to accommodate N. orbicularis. Later Massalongo (1855) added five species including N. punctiformis and compared the genus with Arthopyrenia rather Arthonia. Beltramini de Casati (1858) placed Naevia close to Arthonia. Almquist (1880) considered Naevia as a synonym of Arthonia. Rehm (1896) described Naevia sensu Fries (1849) as having hemiangiocarpous ascomata with pale discs and producing non-septate ascospores, and most other species subsequently included in the genus were based on this character combination (Kirschstein 1935, Hein 1976). Thiyagaraja et al. (2020) resurrected this genus within Arthoniaceae based on mtSSU, nuLSU and RPB2 sequence data. Consequently, the species A. dispersa (barely lichenized or non-lichenized) and A. punctiformis (non-lichenized) A. pinastri (non-lichenized) were synonymized under Naevia and recovered between Arthonia sensu stricto and Mycoporoid clade in the phylogenetic analyses. The members are characterized by non-lichenized but often forming thallus-like, whitish to greyish patches on the substrate, apothecial ascomata that are black, circular to irregular to almost stellate in outline, hyaline hymenium, olive-brown epithecium with K + reaction, ovoid to clavate, bitunicate, fissitunicate asci, 4–8-spored ascospores and the asexual morph produces pycnidia which are black semi immersed to immersed. The genus shares mostly similar morphological characteristics to Arthonia but mainly differs in the non-lichenized lifestyle the presence of amyloid (I + blue, KI + blue) in the ascospores (Thiyagaraja et al. 2020).


Type species: Naevia orbicularis Fr. 

Other accepted species: 

Naevia aeruginosa (Fuckel) Rehm 

Naevia atomaria (A. Massal.) A. Massal. 

Naevia bassanensis Beltr. 

Naevia benguellensis Vain. 

Naevia callorioides (Sacc. & Briard) Sacc. 

Naevia callorioides Rehm 

Naevia calthae P. Karst. 

Naevia canadica Rehm 

Naevia caricis Fuckel 

Naevia carlinae Velen. 

Naevia celtidis (A. Massal.) A. Massal. 

Naevia confusa Höhn. 

Naevia diminuens var. diminuens (P. Karst.) Rehm 

Naevia dispersa (Schrad.) Thiyagaraja, Lücking & K.D. Hyde 

Naevia electrina Kirschst. 

Naevia elynae Ade 

Naevia epilobii P. Karst. 

Naevia euphorbiae Vain. 

Naevia exigua Sacc. 

Naevia genistae Velen. 

Naevia grandis Syd. & P. Syd. 

Naevia gyrosa (Ach.) A. Massal. 

Naevia junci Rehm 

Naevia junci var. junci Rehm 

Naevia junci var. phragmitis Feltgen 

Naevia lutescens Rehm 

Naevia luzulae Sacc. 

Naevia mazosia A. Massal. 

Naevia mozambica Vain. 

Naevia mozambica var. mozambica Vain. 

Naevia mozambica var. simplicior Vain. 

Naevia muscarina Rehm 

Naevia obscuromarginata Starbäck 

Naevia orbicularis Fr. 

Naevia pandani Räsänen 

Naevia parallela Vain. 

Naevia pediculorum Kirschst. 

Naevia pezizelloides Rehm 

Naevia pinastri (Anzi) Thiyagaraja, Lücking & K.D. Hyde 

Naevia poae (Lib.) Rehm 

Naevia populina (A. Massal.) A. Massal. 

Naevia punctiformis (Ach.) A. Massal. 

Naevia rosella f. impatientis Höhn. 

Naevia rosella f. rosella (Rehm) Rehm 

Naevia rotundata Vain. 

Naevia rubella (G. Winter) Rehm 

Naevia seriata var. comedens Rehm 

Naevia seriata var. seriata (Lib.) Fuckel 

Naevia seriata var. spectabilis Fautrey 

Naevia subvelutinae Vain. 

Naevia tiliae (Kleb.) Nannf. 

Naevia tofieldiae Rehm 

Naevia trollii (Wettst.) Boud. 

Naevia viciae Fautrey 

Naevia virgarum Kirschst. 

Naevia vitellina Kirschst.

Fig 1. Naevia pinastri (MFLU 17-1696) a, b. Ascomata on host substrate. c. Vertical section of ascoma. d–g. Asci. h. Ascospores. Scale bars: a = 200 μm, b, c = 100 μm, d–f = 10 μm, g = 30 μm, g = 5 μm.



Beltramini de Casati F 1858  Lichenografia Bassanese enumerati e descriti. Roberti, Bassano

Fries EM 1824  Schedulae Criticae de Lichenibus Exsiccatis Sueciae. Berlingiana, Londini Gothorum

Hein P 1976  Revision der Gattung Laetinaevia Nannf (Ascomycetes) und Neuordnung der Naevioideae. Willdenowia Beiheft 9(3):5–136.

Kirschstein W 1935  Neue und seltene Ascomyceten. Ann Mycol 33, 202–229.

Massalongo A B 1855  Frammenti Lichenografici. Ramanzini, Verona

Rehm H 1896  Die Pilze Deutschlands, Oesterreichs und der Schweiz. III. Abteilung: Ascomyceten: Hysteriaceen und Discomyceten. Dr. L. Rabenhorst’s Kleine Kryptogamenflora von Deutschland, Oesterreich und der Schweiz, Erster Band: Pilze, Zweite Auflage, Zweite edn. Kummer, Leipzig

Thiyagaraja V, Lücking R, Ertz D, Wanasinghe DN, Karunarathna SC, Camporesi E, Hyde KD 2020  Evolution of non-lichenized, saprotrophic species of Arthonia (Ascomycota, Arthoniales) and resurrection of Naevia, with notes on Mycoporum. Fungal Diversity 102, 205224.


Entry by

Vinodhini Thiyagaraja, CAS Key Laboratory for Plant Biodiversity and Biogeography of East Asia (KLPB), Kunming Institute of Botany, Chinese Academy of Science, Kunming 650201, China. Department of Entomology and Plant Pathology, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand


(Edited by Kevin D. Hyde)