Additional Specimens Examined. AUSTRALIA. TASMANIA: Vic. Hobart, Mt. Wellington, nr. Fern Tree, on Nectria, Doi s.n., 23 May 1986 (NY); same collecting data, second collection, Doi D-6761 (NY); Mt. Field National Park, on Nectria sp., Doi D-6766, 29 May 1986 (NY).

Anamorph. Acremonium sp.
Mycelium not evident; conidiophores arising directly from the substrate, macronematous, mononematous, arising from 2-3 µm wide hyphae,, 45-90 µm long x 2 µm wide. at base, 1-3-septate, unbranched, straight, smooth, 2 µm wide at base, monophialidic; phialides 40-70 µm long, tip 1-1.5 µm wide; collarette at most slightly thickened, not flared. Conidia 0-1-septate; 0-septate: (5-)6.5-10.5(-12) x 2-3 µm; 1-septate: 11-14.5(-16) x 2.5-3 µm; cylindrical. (1-septate) to ellipsoidal (0-septate), lacking an obvious basal abscission scar; held in colorless drops of liquid. Perithecia densely gregarious, superficial, non-stromatic, difficult to remove from the substrate, pyriform, 185-200 x 155-180 µm, with a short papilla, smooth, collapsing by lateral pinching when dry, pale yellow, nearly white, not changing color in 3% KOH; with short, 10-20 x 4-5 µm hairs protruding from the papilla. Cells at the surface of the perithecial wall forming textura epidermoidea with unevenly thickened walls, lumina of adjacent cells joined by fine pores. Perithecial wall ca. 15 µm wide, comprising a single region of indistinct cells; perithecial papilla formed of a palisade of hyphal elements, many of which grow outwardly to form hairs. Asci clavate, (35)37-45(-48) x (7-)9-10 µm, apex with a frequently inconspicuous refractive ring; 8-spored, ascospores biseriate, partially to completely filling each ascus. Ascospores ellipsoidal, (8-)9-11(-12.5) x 3-4 µm, equally 2-celled, not constricted at the septum, finely spinulose to smooth, colorless.
Characteristics in Culture. Colonies on CMD very slow growing, white, with scant aerial mycelium, surface of colony covered with slime. Conidiophores as found in nature; conidia formed in culture larger than those found in nature [0-septate: (7)9-15(-17) x 2-3 µm; 1-septate: (11)13.5-20.5(-23) x (2.5)2.8-3.7(-4) µm]; relatively few 0-septate conidia found in culture.

Known Distribution. New Zealand, Australia (Tasmania).

Habitat. On perithecia of Nectria spp.

Nectriopsidi perpusillae (Montagne) Samuels similis sed ascosporis majoribus, (8-)9-11 -12.5) x (7-)9-10 µm; N. lasiodermae (Ellis) Samuels similis sed ascosporis angustioribus. Status anamorphicus Acremonium sp.
Holotypus. New Zealand (PDD 49502).

Etymology of the Specific Epithet. Refers to a similarity to Nectriopsis lasioderma.
Notes. The specimens of N. lasiodermopsis from Tasmania concur well with the New Zealand collection and there is no doubt that all these collections are N. lasiodermopsis. The anamorph found on the type and one of the Tasmanian collections (no anamorph was seen on the other two collections) is close to the anamorph formed in cultures derived from single ascospores. Unfortunately, those cultures are no longer viable.
Nectriopsis lasiodermopsis is close to N. perpusilla and N. lasioderma. It differs from N. perpusilla in having larger, usually spinulose ascospores; from N. lasioderma in having shorter perithecial hairs and narrower, usually spinulose ascospores.

Holotype. New Zealand. North Island. Gisborne: Urewera National Park, Lake Waikaremoana, Ngamoko Track, on old Nectria cf. ochroleuca, Samuels, Horak, Johnston & Petersen, 21 May 1981 (PDD 49502: isotype NY).