Type: Foliicolous Fungi; Description: Ascomata apothecial, scattered, subepidermal, somewhat rectangular in appearance when partially open, elliptical when fully open, reddish brown when young, becoming concolorous with the needle surface, 0.3–1.0 × 0.15–0.4 mm; as they develop, pushing through the epidermis, which is torn but remains hinged; swelling when mature and moist, pushing back the hinged epidermis to expose the slightly convex, straw-coloured hymenial layer; rarely found on needles attached to the tree but develop when the needles are cast. Asci subcylindrical, 110–130 × 12–15 μm. Ascospores filiform, 0–2-septate, 75–120 × 3–4 μm, hyaline. Conidiomata pycnidial, scattered, immersed, globose to subglobose, 0.1–0.2 mm in diameter. Conidia sickle-shaped, 0-septate, 9–22 × 1–1.5 μm, hyaline.

Distribution: Auckland, Coromandel, Waikato, Bay of Plenty, Taranaki, Taupo, Wanganui, Wellington, Hawkes Bay, Wairarapa, Westland, North Canterbury, Mid Canterbury, South Canterbury, Dunedin, Southland.; 1st Record: Gadgil (1985b).

Significance: No pathogenicity studies on this species have been carried out but its behaviour is likely to be similar to that of the closely related C. minus. This species is distinguished from C. minus by its larger ascomata and ascospores and sickle-shaped (rather than bacilliform) conidia.; Host(s): Pinus coulteri, P. halepensis, P. nigra subsp. nigra, P. nigra subsp. laricio, P. pinaster.