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Some kind of pyrenomycetous fungi growing on Leotia sp.
8-spored asci, IKI-.
Ascospores in H2O
(8.2) 8.6 - 10 (11.4) × (3) 3.2 - 3.68 (3.7) µm
Q = (2.4) 2.5 - 3 (3.3) ; N = 26
Me = 9.3 × 3.4 µm ; Qe = 2.7

Common. Corticolous on rohutu (Lophomyrtus obcordata). Thallus yellow-green when fresh, coarsely areolate. Apothecia verruciform, concolorous with thallus, up to 1 mm diameter. Ascospores 2 per ascus, ellipsoid, smooth with halonite margin, 80-100 × 30-40 microns. Chemical spot tests. K+ (very weak yellow), KC+ orange (strong), C+ orange. UV+ orange.

Determination by Dr. D.J. Blanchon.

Voucher: P.J. de Lange 14604, M. Prasad & P. Bell-Butler, UNITEC 11511

Uncommon (but easily overlooked). Corticolous on rohutu (Lophomyrtus obcordata). Minute lichen. Thallus chartaceous, grey to graphite-black with silvery cast, sparsely covered in minute, black, globose, perithecia; ascospores 1-septate, ellipsoid to ellipsoid-elongate, 17.5 × 3.75 microns.

Determination by Dr D.J. Blanchon.

Images of lichen in dry state.

Voucher: P.J. de Lange 14667, M. Prasad & P. Bell-Butler, UNITEC 11514.

Uncommon. Corticolous (Muscicolous) on rohutu (Lophomyrtus obcordata). Soralia prominent, borne on broad, spathulate lobes. Central portion of thallus weakly phyllidiate. Rhizines sparse, pale.

Chemical Spot Tests: Cortex K+ (yellow), C-, KC- Pd+ (yellow). Medulla K+ (yellow), C-, P+ (pale yellow).

Determination by Dr. D.J. Blanchon.

Voucher: P.J. de Lange 14636, M. Prasad & P. Bell-Butler, UNITEC 11449.