Phylogenetic approach for identification and life cycles of Puccinia (Pucciniaceae) species on Carex (Cyperaceae) from northeastern China Author Ji, Jingxin Author Li, Zhuang Author Li, Yu Author Kakishima, Makoto text Phytotaxa 2022 2022-04-06 542 3 221 255 http://dx.doi.org/10.11646/phytotaxa.542.3.1 journal article 53874 10.11646/phytotaxa.542.3.1 3df0930d-462b-4889-8dd8-c94298fa9568 1179-3163 6416737 C7: Puccinia caricis-hebeiensis Jing X. Ji, Zhuang Li, Y. Li & Kakish. sp. nov. ( Fig. 10 ) MycoBank No: MB 838298. Diagnosis: —This species is morphologically similar to P. caricis-atractylodis and P. vaginatae , but phylogenetically separated from these species. Typus: — CHINA , Hebei Province , Cangzhou , Cangxian , telia on Carex sp. , 17 November. 2018, J . X. Ji , HMJAU 8895 , Holotype . Etymology: —Named after host plant genus of the telial stages, and the locality of collection, Hebei Province . Description: — Spermogonia , aecia and uredinia not found. Telia hypophyllous, compact, black, rounded to broadly elliptic, erumpent. Teliospores broadly clavate, ellipsoid, mostly conical and rounded at apices, weakly constricted at the septa, attenuate at the bases, 34.0–51.0 × 17.0–21.0 µm (av. 43.0 × 19.5 µm); walls brown, 0.6–1.4 µm (av. 0.9 µm) thick at sides, 5.4–8.6 µm (av. 6.9 µm) at apices; pedicels persistent, hyaline, 19.5–48.0 µm (av. 32.0 µm) long. FIGURE 10. Puccinia caricis-hebeiensis on Carex sp. A . Telia on the lower leaf surface. B , C . Vertical section of a telium. Scale bars: B, C = 20 μm. FIGURE 11. Puccinia circaeae-caricis on Circaea sp. ( A–H ) and Carex sp. ( I ). A . Plants producing spermogonia and aecia on the leaf surface in the field. B , D . Aecia on the lower leaf surface. C . Vertical section of a spermogonium. E . Vertical section of an aecium surrounded with peridia. F . Aeciospores. G . An aecium observed under SEM. H . Aeciospores with granules on the surface observed under SEM. I . Vertical section of a telium. Scale bars: C, F, I = 20 μm, E, G = 50 μm, H = 5 μm. Additional specimens examined from CHINA :— Hebei Province , Cangzhou , telia on Carex sp. , 12 May 2019 , HMJAU 8894 . Hosts and distribution in China : —Telia on Carex sp. ( Hebei Province ). Note:— Two specimens of the telial stage are included in this clade and they are morphologically similar and phylogenetically close to P. caricis-atractylodis and P. vaginatae . However, they are clearly separated from clades of these species ( Fig. 3 ), and are also slightly different in the shape and size of the teliospores, being slightly shorter and wider.