Species identification of European forest pathogens of the genus Milesina (Pucciniales) using urediniospore morphology and molecular barcoding including M. woodwardiana sp. nov. Author Bubner, Ben Author Buchheit, Ramona Author Friedrich, Frank Author Kummer, Volker Author Scholler, Markus text MycoKeys 2019 48 1 40 http://dx.doi.org/10.3897/mycokeys.48.30350 journal article http://dx.doi.org/10.3897/mycokeys.48.30350 1314-4049--1 Milesina scolopendrii (Fuckel) Jaap, Fungi selecti exsiccati no. 571 (1912) Figure 6n Asplenium scolopendrium L. ( Phyllitis scolopendrium (L.) Newman). Germany, Baden-Wuerttemberg : Bodensee, Konstanz, N Langenrain, Ueberlinger-See , NW part of Blisenhalde, 9 May 1999, H. Jage (KR, KR-M-0025400); Reutlingen, Bad Urach, 12 Sep 2017, M. Scholler & R. Buchheit (KR, KR-M-0049049, KR-M-0049050); Reutlingen, Bad Urach, Guetersteiner Wasserfall, 18 Sep 2017, R. Buchheit (KR, KR-M-0049066); Reutlingen, Bad Urach, Uracher Wasserfaelle , 12 Sep 2017, M. Scholler & R. Buchheit (KR, KR-M-0049037, KR-M-0049051); Nordrhein-Westfalen, Maerkischer Kreis, Balve, Volkringhausen, moist forest, limestone rocks, 16 Aug 2012, H. Thiel (KR, KR-M-0043186); Rheinland-Pfalz, Bad Kreuznach, Hochstetten-Dhaun, forested slope below Dhaun castle, 30 Oct 2013, H. Thiel, II (KR, KR-M-0043153); Switzerland, Graubuenden : 1871-1873, L. Fuckel (G, G 00550757, type). Description. Urediniospores hyaline, ellipsoidal to obovoidal, clavate, 27.5-49.0 x 17.5-25.0 µm , mostly 27.5-42.5 x 17.5-22.5 µm ; wall 0.5-1.8 µm , mostly 0.5-1.2 µm thick; spores echinulate with 1 mostly ovoidal smooth area, located centrally to apically, smooth area 12.5-20.0 x 7.5-11.3 µm , mostly 15.0-17.5 x 7.5/10.0 µm , spines 1.5-2.8 long, irregularly distributed, erect, distances between spine bases 1.0-9.0 µm , mostly 2.0-5.0 µm , sometimes denser toward spore base, spine base 0.8-1.6 µm , mostly 0.9-1.2 µm diam.; germ pores scattered, 4-9, mostly 6-7, 1.25-3.0 µm , mostly 2.0-3.0 µm diam., O 2.4 µm diam.