Cryptovalsa halosarceiicola K.D.Hyde

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 : 42

Cryptovalsa halosarceiicola K.D.Hyde [as “halosarceicola”]

( Fig. 9 )

Mycological Research 97 (7): 799 (1993).

MATERIAL EXAMINED. — Australia, north Queensland, Cairns, Cairns airport mangrove, on intertidal decaying Halosarceia halocnemoides (Nees) P. G. Wilson, IV.1991, K. D. Hyde , (holo-, BRIP[BRIP-20340]).

DISTRIBUTION. — Australia.

DESCRIPTION

Sexual morph

Ascomata. Flask-shaped, black, immersed in a wide-spreading entostroma in the surface layers of the host tissue, with protruding necks, of dark angular cells, with periphyses. Substratum blackened around the ascomata, with a depressed zone between them (seen in section).

Peridium. Comprising an inner layer of hyaline elongate cells, and an outer layer of dark fungal hyphae in the form of textura intricata, fusing at the outside with the host tissue.

Paraphyses. Hyphae-like, filamentous, numerous.

Asci. Polysporous, cylindric-fusoid, tapering to the peduncle, tapering in the upper part to a truncate thickened apex, with a faint, non-amyloid subapical ring.

Ascospores. Allantoid, non-septate, hyaline (Description from Hyde 1993 ).

Asexual morph

Undetermined.

NOTES

Cryptovalsa halosarceiicola was associated with the mangrove fungus Marinosphaera mangrovei ( Hyde 1993) . It can be distinguished by the flask-shaped ascomata immersed in a wide-spreading entostroma with protruding necks, hyphae-like filamentous paraphyses, polysporous asci with non-amyloid subapical ring and allantoid, hyaline ascospores ( Hyde 1993 ). No ascomata of Cryptovalsa halosarceiicola were present in the type material of the species. Therefore, it is in need of epitypification for future studies. Cryptovalsa halosarceiicola is morphologically similar to C. suaedicola but differs in ascomatal characteristics such as the longer neck lacking furrows, and a two-layered thick peridium. Cryptovalsa halosarceiicola , Halocryptovalsa avicenniae , comb. nov., and the novel species Halodiatrype salicorniae share similar morphologies in ascomatal and ascal characteristics. Cryptovalsa halosarceiicola and Halodiatrype avicenniae are easy to differentiate by ascospore colouration, which is yellow-brown to brown in Halodiatrype avicenniae and hyaline in Cryptovalsa halosarceiicola . However, the ascomatal measurements of these two species are considerably disparate ( Table 4 ). There are no molecular data for these species to confirm their phylogenetic affinity with other related taxa within the family.

Figures

FIG. 9. — Cryptovalsa halosarceiicola K.D.Hyde (BRIP 20340 – holotype): A, B, herbarium material.