Conidiomata stromatic, pycnidioid, immersed, eventually becoming erumpent, irregularly plurilocular with convoluted locules, glabrous, dark brown to black, initially closed, ultimately dehiscing by several circular to oval openings in the apical wall and covered with a pearl white or cream, gloeoid globule or conidial cirrhi; wall of textura angularis with thick-walled, brown to dark brown cells. Conidiophores lining the locules, reduced to conidiogenous cells and invested in mucus. Conidiogenous cells discrete, subcylindrical to broadly conical, colourless, smooth. Conidiogenesis: ontogeny by apical wall building in the first conidium and by replacement wall-building in subsequent conidia; maturation by diffuse wall-building synchronous with ontogeny; delimitation by a double septum; secession schizolytic; proliferation, of conidiogenous cell enteroblastic-percurrent to produce additional conidia at the same or slightly higher level; conidiogenous cells with marked periclinal thickenings in the collarette zone; regeneration of conidiogenous cells absent. Conidia fusiform with somewhat apiculate ends, unicellular, colourless, thin-walled, smooth, with funnel-shaped to irregular, mucoid appendages of type H at both ends, arising by gelatinization of appendage primordia at the poles of the developing conidia.

Conidiomata stromatica, pycnidioidea, initio immersa, deinde erumpentia, irregulatim plurilocularia loculis convolutes, glabra, atrobrunnea vel nigra, initio clausa, postremo per aliquot foramina circularia vel ovalia parietis apicalis dehiscentia, globulo viscido vel cirrho conidiorum albido vel eburneo velata; paries e textura angulari cellulis crassitunicatis, brunneis vel atrobrunnees compositus. Conidiophora circum cavitatem loculorum enascentia, ad cellulas conidiogenas redacta, in muco involuta. Cellulae conidiogenae discretae, subcylindraceae vel late conicae, hyalinae, laeves. Conidiogenesis: ontogenea holoblastica; maturatio conidiorum cum ontogenea synchrona; delimitatio per septum duplex; secessio schizolytica, proliferatio cellularum conidiogenarum enteroblastica, conidia plura ad locos eosdem aut altiores successive producens; cellulae conidiogenae in zona collarali crassitiebus periclinalibus notatis praeditae; regeneratio cellularum conidiogenarum nulla. Conidia fusiformia, extremitatibus aliquantum apiculatis, unicellularia, hyalina, tenuitunicata, laevia, utrinque appendices mucosas infundibuliformes vel irregulares ferentia; appendices per gelatisationem zonarum certarum parietis ad polos conidiorum crescentium orientes.

Zelandiocoela, with its bipolar mucoid conidium appendages, is likely to be confused with several other coelomycete genera. The conidium appendages in Allantophomopsis Petrak, Hymenopsis Saccardo, and Koorchaloma Subramanian are of type C, while the appendages in Mirimyces Nag Raj, Tiarospora Saccardo & Marchal, and Zelandiocoela are of type H. In Mirimyces, the appendage arises from a torus of mucus resulting from gelatinization of appendage primordia - convex lens-shaped wall areas, subapical in position, and delimited at an early stage of conidium development. In Tiarospora and Zelandiocoela, the appendage primordia on the developing conidia are bipolar, conic and obconic in shape. The differences between Tiarospora and Zelandiocoela outweigh the similarity. The conidia in Tiarospora are thick-walled, eventually pigmented and 1-septate, while in Zelandiocoela the conidia are thin-walled, colourless and unicellular. Another feature present in Tiarospora, but absent in Zelandiocoela, is the microconidiogenous cells lining the ostiolar channel in the neck region of the conidioma.

Type anamorph-species: Zelandiocoela ambigua (Nag Raj & Kendrick) Nag Raj. Teleomorph: Unknown.