Fungalpedia – Note 156, Axisporonites (Fossil Fungi)


Axisporonites Kalgutkar & Janson. 

Citation when using this data: Saxena RK & Hyde KD. in prep – Fungalpedia, Fossil Fungi. 

Index Fungorum, Facesoffungi, MycoBank, GenBank, Fig. 1

ClassificationPhragmosporae, Fungi

The monotypic fossil genus Axisporonites was established by Kalgutkar & Jansonius (2000) to accommodate Multicellaesporites indicus P. Kumar (1990) described from the Early-Middle Miocene (23–11.6 mya) sediments of Padappakkara, Quilon District, Kerala, South India. The fungal spores are medium-sized, inaperturate, and tricellate, with an overall shape that is more or less elliptical. Two polar cells are smaller, triangular, with dark pigmentation and thicker walled than the large, hyaline central cell. Additionally, the septa are thicker than the wall of the central cell (Saxena & Tripathi 2011). Only one species listed in Index Fungorum (2023) under this genus. 

Type species: Axisporonites indicus (P. Kumar) Kalgutkar & Janson. 

BasionymMulticellaesporites indicus P. Kumar.



Figure 1 – Axisporonites indicusScale bar = 10 μm. Redrawn from Kumar (1990)



Kalgutkar RM, Jansonius J. 2000 – Synopsis of fungal spores, mycelia and fructifications. AASP Contribution Series 39, 1–423. 

Kumar P. 1990 – Fungal remains from the Miocene Quilon Bed of Kerala state, South India. Review of Palaeobotany and Palynology 63, 13–28.

Saxena RK, Tripathi SKM. 2011 – Indian fossil fungi. Palaeobotanist 60, 1–208.


Entry by

Ramesh K. SaxenaBirbal Sahni Institute of Palaeosciences, Lucknow, India


(Edited by Kevin D. Hyde, Samaneh Chaharmiri-Dokhaharani, & Achala R. Rathnayaka)