Valsaria insitiva.
a Ectostroma in face view. b Projecting ectostromatic structures. c Transverse section at the ostiolar level. d, e Transverse section at the ascomatal level (d immature). f–i. Vertical stroma sections (f compound stroma; h showing fused ostioles; i showing peridium and adjacent prosenchymatous stroma). j–l Asci. m–p Ascospores (o, p. showing surface ornamentation). q Apical rings and apically free paraphyses in Congo red. Sources: a–d, h. VV; e. VW; f, l. VA; g, i. VCE; j. VV2; k, m, q. V8; n, o. VV1; p. V5. Scale bars: a, b, e, f=0.5 mm. c, g=0.3 mm. d=0.7 mm. h=0.2 mm. i=30 µm. j–l =15 µm. m, o–q=7 µm. n= 10 µm