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 C11: Puccinia caricis-pediformis Jing X. Ji, Zhuang Li, Y. Li & Kakish. sp. nov. ( Fig. 14 ) MycoBank No: MB 838300. Diagnosis: —This species is characterized by having only telial stage morphologically similar to P. caricis-amblyolepis , but phylogenetically separated. Typus: — CHINA , Jilin Province , Changchun , Jingyue Forest Park , telia on Carex pediformis C.A. Mey. , 20 May 2016 , M . Kakishima & J . X. Ji , HMJAU 8836 , Holotype . Etymology: —Named after host plant on which telia are formed. Description: — Spermogonia , aecia and uredinia not found. Telia hypophyllous, compact, blackish brown, rounded to broadly elliptic, erumpent. Teliospores broadly clavate, ellipsoid, truncate and rounded at apices, constricted at the septa, attenuate at the bases, 38.0–53.5 × 17.5–22.5 µm (av. 40.5 × 17.5 µm); walls brown, 0.8–1.0 µm (av. 0.9 µm) thick at sides, 7.5–12.0 µm (av. 9.5 µm) at apices; pedicels persistent, hyaline, 9.0–16.0 µm (av. 12.5 µm) long. FIGURE 13. Puccinia caricis-amblyolepis on Carex sp. A . Plants producing uredinia and telia on the leaf surface in the field. B . Vertical section of a uredinium. C . Urediniospores. D . Uredinia and telia on the lower leaf surface. E . Teliospores. F . Vertical section of a telium. Scale bars: B, C = 30 μm, E, F = 20 μm. FIGURE 14. Puccinia caricis-pediformis on Carex pediformis . A , B . Telia on the lower leaf surface. C . Vertical section of a telium. Scale bars: C = 20 μm. Additional specimens examined from northeastern CHINA : — Heilongjiang Province , Wuchang , telia on Carex pediformis , 6 June 2016 , HMJAU 8835 . Hosts and distribution in northeastern CHINA ( Fig. 1 ): —Telia on Carex pediformis (A, D). Note: —Two specimens on C. pediformis are phylogenetically close to P. caricis-amblyolepis and P. caricistenuiformis , but are clearly separated from these species because they have a distinct linage ( Fig. 3 ) and are, therefore, treated as an independent species. Teliospores are morphologically similar to P. caricis-amblyolepis , but no uredinial stage has been found; spermogonial and aecial stages are suspected to be produced on Urtica .