Fungalpedia – Note 3187, Retihelicosporonites
Retihelicosporonites Ramanujam & Rao: 3 (1979).
Citation when using this data: Jian Ma et al. 2024 – Fungalpedia.
Index Fungorum, Faceoffungi, MycoBank, GenBank, Fig 1.
Notes: Retihelicosporonites was established by Ramanujam and Rao (1978), with R. elsikii as the type species based on its morphological characteristics. Retihelicosporonites differs from other fossil helicosporous genera due to its reticulate conidia that consist of cuneate basal cell, and helicoid terminal cell, with the remaining cells being rectangular in shape (Ramanujam and Rao 1978; Saxena et al. 2021). Retihelicosporonites comprises a single species, R. elsikii, which was found in India.
Type species: Retihelicosporonites elsikii Ramanujam & K.P. Rao, Proceedings of the IV International Palynology Conference, Lucknow 1976-1977: 299 + pl. 3, figs 37-38 (1979).
Other accepted species: Species Fungorum – search Retihelicosporonites.
Figure 1 – a Colligerites kutchensis, Bar = 8 μm. b Elsikisporonites tubulatus, Bar = 12 μm. c Helicominites salvinites, Bar = 10 μm. d Helicoonites goosii, Bar = 10 μm. e Helicosporiates pirozynskii, Bar = 8 μm. f Involutisporonites foraminus, Bar = 10 μm. g Palaeocirrenalia elegans, Bar = 8 μm. h Paleoslimacomyces canadensis, Bar = 5 μm. i Retihelicosporonites elsikii, Bar = 20 μm. (redrawn from Saxena et al. (2021)).
References
Ramanujam C, Rao K. 1978 – Fungal spores from the Neogene strata of Kerala in South India. In: pp. 291–304 in Bharadwaj DC et al. (eds)–Proceedings of the 4th International Palynological Conference, Lucknow, Birbal Sahni Institute of Palaeobotany, pp 1976–1977.
Entry by
Jian Ma, School of Food and Pharmaceutical Engineering, Guizhou Institute of Technology, Guiyang 550003, P.R. China, Center of Excellence in Fungal Research, Mae Fah Luang University, Chiang Rai 57100, Thailand, School of Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand.
Published online 18 September 2026