Phragmidium duchesneae-indicae P. Zhao & L. Cai, Fungal Diversity 5:1-58, 2021

Sun, Jing-E, Zhang, Qian, Luo, Wen-Mei, Yang, Yuan-Qiao, An, Hua-Ming & Wang, Yong, 2022, Four new Phragmidium (Phragmidiaceae, Pucciniomycetes) species from Rosaceae plants in Guizhou Province of China, MycoKeys 93, pp. 193-213 : 193

Phragmidium duchesneae-indicae P. Zhao & L. Cai, Fungal Diversity 5:1-58, 2021

Fig. 7

Description.

Spermogonia, aecia and telia not observed. Uredinia produced on the abaxial leaf surface, hypophyllous, nearly oval, golden, densely bright orange-yellow, powdery, not surrounding by host epidermis, 0.3-1.2 mm diam, without paraphyses. Urediniospores produced in basipetal succession, mostly globose, 17-22 × 15-20 µm (mean 19.5 × 17.5 μm, n = 30), inclusions yellowish, or bright-yellow; thick-walled, wall 0.7-1.8 µm thick, colorless, densely and minutely echinulate. Telia and teliospores see Zhao et al (2021).

Habitat.

Duchesnea indica

Known distribution.

China, Guizhou Province.

Material examined.

China. Guizhou Province: Guiyang city, 27°10'30"N, 106°99'91"W, 820 m, 09 Apr 2021, on Duchesnea indica , coll. J.E. Sun, HGUP21031; Guiyang city, 27°09'26"N, 106°98'90"W, 734 m, 04 Sep 2021, on Duchesnea indica , coll. J.E. Sun, HGUP21032 .

Notes.

Phragmidium duchesneae-indicae was first reported on D. indica by Zhao et al (2021). Our specimen had similar morphology to that described by Zhao et al (2021). GenBank accession numbers (ITS and LSU) of Ph. duchesneae-indicae have not been released, and our identification is based only on a morphological comparison.

Figures

Figure 7. Phragmidium duchesneae-indicae (HGUP 21031) on Duchesnea indica a-c uredinia on leaves d longitudinal section of uredinium e-g urediniospores. Scale bars: 2 mm (b); 1 mm (c); 50 µm (d); 12.5 µm (e-g).