Puccinia caricis-dispori Kakish., Jing X. Ji, K. Hosaka & Hosoya, 2024

Kakishima, Makoto, Ji, Jing Xin, Hosaka, Kentaro & Hosoya, Tsuyoshi, 2024, Rust fungi (Pucciniales) on Cyperaceae in Japan, with 2 new names, 5 new combinations and typifications, Phytotaxa 666 (4), pp. 229-256 : 237

Puccinia caricis-dispori Kakish., Jing X. Ji, K. Hosaka & Hosoya , nom. nov.

MycoBank: 854814.

Replaced name:— Aecidium dispori Dietel, Bot. Jahrb. Syst. 27: 571, 1899 [MB193119].

Heterotypic synonym:— Puccinia albispora Y. Ono & Kakish., Mycoscience 42: 152, 2001 [MB474649].

Competing homonym:— Puccinia dispori Syd., Ann. Mycol. 29: 151, 1931 [MB 263335].

Etymology:—Name after host plants.

Type:— Lectotype is selected from specimens in S and designated here; 0, I on Disporum sessile (Thunb.) D. Don ex Schult. & Schult. f. , Japan, Nagano Prefecture, Togakushi, 12 August 1897, S. Kusano, S-F18950, [MBT10021353]. Paratype in TNS (F100408). Epitype specimen is designated here because the morphology of uredinial and telial stages are important characters to specify this species: II, III on Carex rugata Ohwi , Japan, Ibaraki Prefecture, Mito, 22 November 1999, Y. Ono, Obtained by inoculation, IBA8492, Holotype of P. albispora , [MBT10021420].

Description:—See Ono et al. (2001b).

Hosts and distribution in Japan:—0, I on Disporum sessile (Thunb.) D. Don ex Schult. & Schult. f. (Hok, Hon, Shi), D. smilacinum A.Gray (Hok, Hon, Kyu); II, III on Carex alterniflora Franch. var. alterniflora [= C. pisiformis subsp. alteniflora (Franch.) T. Koyama , C. sachalinensis var. alterniflora (Franch.) Ohwi ] (Hon), C. conica Boott var. conica (= C. okushiriensis Akiyama ) (Hon), C. multifolia Ohwi var. multifolia [= C. dolichostachya subsp. multifolia (Ohwi) T. Koyama , C. dolichostachya var. glaberrima (Ohwi) T. Koyama ] (Hon), C. rugata Ohwi (Hon) ( Ito 1950, Hiratsuka 1960, Hiratsuka et al. 1992, Ono et al. 2001b).

Notes:—Life cycle of this species was proved by Ono et al. (2001b). Aecidium dispori Dietel is the legitimate earliest name of this species. Therefore, a new combination name, based on this anamorphic species name, should be proposed under the ICNafp Shenzhen Code ( Turland et al. 2018). Because Puccinia dispori Syd. is preoccupied a new name, P. caricis-dispori , is proposed as a replacment name for this species to avoid taxonomic confusion. Spermogonial and aecial stages of this species have been reported from China and Taiwan ( Ito 1950, Tai 1979, Hiratsuka & Chen 1991, Ono et al. 2001b).