Cunninghamella verrucosa sp. nov. (Mucorales, Mucoromycota) from Guangdong Province in China Author Wang, Yu-Jie 0000-0001-6039-349X College of Plant Science, Tibet Agricultural and Animal Husbandry University, Linzhi 860000, China & College of Life Sciences, Shandong Normal University, Jinan 250358, China & 18503217053 @ 163. com; https: // orcid. org / 0000 - 0001 - 6039 - 349 X Author Zhao, Ting 0000-0002-0499-4933 China Alcoholic Drinks Association, Beijing 100831, China & zhaoting @ cada. cc; https: // orcid. org / 0000 - 0002 - 0499 - 4933 zhaoting@cada.cc Author Wu, Wen-Ying 0000-0002-4656-2573 China Alcoholic Drinks Association, Beijing 100831, China & wuwenying @ cada. cc; https: // orcid. org / 0000 - 0002 - 4656 - 2573 wuwenying@cada.cc Author Wang, Mu 0000-0002-5235-4914 College of Plant Science, Tibet Agricultural and Animal Husbandry University, Linzhi 860000, China & wangmutb @ 163. com; https: // orcid. org / 0000 - 0002 - 5235 - 4914 Author Liu, Xiao-Yong 0000-0002-8808-010X College of Life Sciences, Shandong Normal University, Jinan 250358, China & State Key Laboratory of Mycology, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China & 622001 @ sdnu. edu. cn; https: // orcid. org / 0000 - 0002 - 8808 - 010 X 622001@sdnu.edu.cn text Phytotaxa 2022 2022-09-02 560 3 274 284 http://dx.doi.org/10.11646/phytotaxa.560.3.2 journal article 137727 10.11646/phytotaxa.560.3.2 b0b880d0-e9e2-4ddc-9f2c-ef259c071008 1179-3163 7042667 A key to the species and varieties of Cunninghamella Together with the new species proposed in this paper, a total of 22 taxa of Cunninghamella , including 19 species and three varieties, were described in the world ( Zheng and Chen 2001 , Guo et al . 2015 , Hyde et al . 2016 , Zhang et al . 2020 , Hallur et al . 2021 , Suwannarach et al . 2021 , Zhao et al . 2021b ). Consequently, a key to the 22 taxa is updated herein. 1. Chlamydospores present.............................................................................................................................................. C. saisamornae 1. Chlamydospores absent ......................................................................................................................................................................2 2. Zygospores present.............................................................................................................................................................................3 2. Zygospores absent ............................................................................................................................................................................10 3. Homothallic ................................................................................................................................................................ C. homothallica 3. Heterothallic .......................................................................................................................................................................................4 4. Sporangiola are two types , globose to broadly ellipsoid or ovoid, or dark giant sporangiola exclusively globose...........................5 4. Sporangiola are more types , ovoid, ellipsoid, globose, subglobose, or lacrymoid ............................................................................6 5. Sporophores without verticillate branches ............................................................................................ C. echinulata var. echinulata 5. Sporophores usually with many whorls of verticillate branches or pseudoverticillate branches.......... C. echinulata var. verticillata 6. Sporangiola reaching 15 µm...............................................................................................................................................................7 6. Sporangiola <15 µm .................................................................................................................................................... C. phaeospora 7. Suspensors mainly equal in shape but unequal in length, rarely unequal in shape...................................................... C. polymorpha 7. Suspensors mostly unequal in shape and size, rarely equal ...............................................................................................................8 8. Suspensors mainly equal in shape but unequal in length, rarely unequal in shape...................................................... C. polymorpha 8. Suspensors mostly unequal in shape and size, rarely equal ...............................................................................................................9 9. Maximum growth temperature ≤ 36 ˚C .............................................................................................................................. C. elegans 9. Maximum growth temperature> 36 ˚C ..................................................................................................................... C. blakesleeana 10 Sporangioles are globose.................................................................................................................................................................11 10. Sporangioles are globose to subglobose, ellipsoid, ovoid or lacrymoid ..........................................................................................15 11. Causing as opportunistic pathogens of mucormycosis................................................................................................... C. arunalokei 11. Not reported causing as opportunistic pathogens until now.............................................................................................................12 12. Vesicles clavate.................................................................................................................................................................................13 12. Vesicles globose to subglobose ........................................................................................................................................................14 13. Branches 1–4, single, in pairs, or 3–4 arranged pseudoverticillately, vesicles without warts............................................. C. clavata 13. Usually unbranched, occasionally simply branched, monopodial, vesicles bearing warts ............................... C. verrucosa sp. nov. 14. Maximum growth temperature ≤ 43 ˚C ......................................................................................................................... C. intermedia 14. Maximum growth temperature> 43 ˚C ........................................................................................................................ C. globospora 15. Sporophores with many septa.............................................................................................................................................. C. septata 15. Sporophores without septa, or one to serval septa ...........................................................................................................................16 16. Sporophores typically nodulous .................................................................................................................. C. echinulata var. nodosa 16. Sporophores not nodulous ................................................................................................................................................................17 17. Sporophores sympodial, not verticillate......................................................................................................................... C. vesiculosa 17. Sporophores not sympodial, but verticillate.....................................................................................................................................18 18. Sporophores pseudoverticillate ........................................................................................................................................................19 18. Sporophores not pseudoverticillate ..................................................................................................................................................20 19. Giant cells present ..................................................................................................................................................... C. gigacellularis 19. Giant cells absent.................................................................................................................................... C. echinulata var. antarctica 20. Vesicles subglobose to pyriform........................................................................................................................................ C. bigelovii 20. Vesicles globose to subglobose, ovoid or irregular ..........................................................................................................................21 21. Vesicles regular........................................................................................................................................................... C. guizhouensis 21. Vesicles irregular ..............................................................................................................................................................................22 22. Sporangiola lacrymoid....................................................................................................................................................... C. binariae 22. Sporangiola not lacrymoid .................................................................................................................................... C. multiverticillata