DIATRYPACEOUS

Dayarathne, Monika C., Wanasinghe, Dhanushka N., Devadatha, B., Abeywickrama, Pranami, G, E. B., Jones, areth, Chomnunti, Putarak, Sarma, V. V., Hyde, Kevin D., Lumyong, Saisamorn, C., Eric H. & Mckenzie, 2020, Modern taxonomic approaches to identifying diatrypaceous fungi from marine habitats, with a novel genus Halocryptovalsa Dayarathne & K. D. Hyde, gen. nov., Cryptogamie, Mycologie 20 (3), pp. 21-67 : 23-24

KEY TO MARINE DIATRYPACEOUS SPECIES

1. Only asexual morph known ............................... Cryptosphaeria halophila Dayarathne & K.D.Hyde , sp. nov.

— Sexual morphs with or without asexual morphs ........................................................................................... 2

2. Asci 8-spored ............................................................................................................................................... 3

— Asci more than 8 spored ............................................................................................................................ 12

3. Ascospores filiform or ellipsoidal ................................................................................................................. 4

— Ascospores allantoid or subinequilateral ...................................................................................................... 5

4. Ascospores 12-13-septate, without a longitudinal germ slit ............................................................................ ........................................................................................ Pedumispora rhizophorae K.D.Hyde & E.B.G.Jones

— Ascospores aseptate, without a longitudinal germ slit ............ Diatrypasimilis australiensis J.J.Zhou & Kohlm

5. Ascospores septate ....................................................................................................................................... 6

— Ascospores aseptate ..................................................................................................................................... 7

6. Ascomata 125-140 × 105-115 µm ....................................... Halodiatrype salinicola Dayarathne & K.D.Hyde

— Ascomata 520-990 × 740-880 µm ................. Halodiatrype mangrovei (K.D.Hyde) Dayarathne & K.D.Hyde

7. Ascospores 45-52 × 10-14 µm, with several small guttules .............................................................................. .......................................................................................... Halodiatrype avicenniae Dayarathne & K.D.Hyde

— Ascospores 5-10.5 × 1.5-3 µm, with two small guttules or without guttules ................................................ 8

8. Ascostromata erumpent, arising through cracks on bark, edges of cracks remaining as pointed, angular parts, carbonaceous .............................................................. Diatrype mangrovei Dayarathne & K.D.Hyde , sp. nov.

— Ascostromata immersed or semi immersed, blackening the wood surface or forming a blackened crust on host surface ......................................................................................................................................................... 9

9. Ascostromata blackening the wood surface with ectostromatal cushions occurring around each ascoma ......... ............................................................................................................................. Eutypella naqsii K.D.Hyde

— Ascostromata blackening the wood surface without ectostromatal cushions occurring around each ascoma. 10

10. With a thin white line under the black hymenium .................................................................................... 11

— Without a thin white line under the black hymenium ............................. Cryptosphaeria eunomia (Fr.) Fuckel

11. Ascospores olive-brown .................................................................................................................................. ............................. Cryptosphaeria bathurstensis (K.D.Hyde & Rappaz) Dayarathne & K.D.Hyde , comb. nov.

— Ascospores hyaline to slightly brownish ............ Cryptosphaeria avicenniae Devadatha & V. V. Sarma , sp. nov.

12. Ascomatal neck with horizontal or vertical furrows .................................................................................... 13

— Ascomatal neck lacking horizontal or vertical furrows ............................................................................... 14

13. Ascomatal neck with 4 horizontal furrows .............................. Cryptovalsa mangrovei Abdel-Wahab & Inderb

— Ascomatal neck with 4 vertical furrows ........................................................... Cryptovalsa suaedicola Spooner

14. Ascospores yellow-brown to brown ................................................................................................................ ..... Halocryptovalsa avicenniae (Abdel-Wahab, Bahkali & E.B.G.Jones) Dayarathne & K.D.Hyde , comb. nov.

— Ascospores hyaline ..................................................................................................................................... 15

15. Ascomata 130-185 × 185-260 µm .......................................................... Cryptovalsa halosarceicola K.D.Hyde

— Ascomata 230-300 ×140-168 µm .................... Halocryptovalsa salicorniae Dayarathne & K.D.Hyde , sp. nov.