Holotype. Ruapehu, Auckland, New Zealand, J. Dingley, leaves of Griselinia littoralis, 20 Oct 1949 (K ex PDD 19046; isotype PDD).

STROMA. Substratal, evident as single or double black lines extending irregularly along the leaf blade especially toward the margin, in section the black lines consisting of a rind of cells with differentially pigrnented walls, in surface view the individual cells irregular to epidermoid. Unknown in culture. MACROCONIDIAL STATE. Unknown. SPERMATIA. Unknown. APOTHECIAL MORPHOLOGY. Apothecia 1-3 mm in diam, to ca. 1.5 mm high, when fresh purple-brown (Dennis, 1961), flat to slightly convex, drying cupulate, hymenium brick red, receptacle purple-black to black, concolorous with the stipe which is eccentric, tapering toward the base; rehydrating flat and lighter when dry. APOTHECIAL ANATOMY. Asci 8-spored, (85-)90-110(-125) x 8-10 µm, produced from croziers, cylindric to slightly clavate, tapering slightly below toward the base and there slightly expanded to form a small foot; wall 1-2 µm thick, 2-3 µm at the rounded apex; pore J+, the walls outlined deep blue in Melzer's reagent. Ascospores (11-)12-14(-15) x (3-)4-5 µm, biseriate above and uniseriate below or uniseriate throughout, hyaline, ellipsoid, smooth, in outline inequilateral, generally slightly broader at anterior end than posterior, rarely slightly indented and subreniform; with two, large, internal polar guttules, the anterior one frequently larger than posterior, occasionally breaking into smaller guttules. Paraphyses slightly exceeding the asci, hyaline, rarely branched and septate, filiform, 2-3 µm wide at the rounded apex. Subhymenium to ca. 40 µm broad, whole layer vertically oriented and subliyaline to lightly pigmented, not refractive; consisting of narrow, tightly interwoven hyphae with thick, smooth, hyaline to lightly pigniented walls. Medullary excipulum well developed, not refractive, consisting of loosely to tightly interwoven, branched, septate hyphae 4-7 µm wide, with frequently coarsely roughened and pigmented walls. Ectal excipulum: inner ectal excipulum well developed, 3 to several layers broad, tapering from ca. 10 µm broad toward the margin to ca. 25 µm broad toward the stipe; consisting of parallel to slightly interwoven, tightly to loosely compact hyphae, 2-5 µm wide, the individual cells shortest and narrowest toward the margin and longest and broadest toward the stipe, with coarsely roughened and lightly pigmented walls (roughenings and pigmentation more intense and obvious toward the margin). Outer ectal excipulum not refractive or only slightly so, tapering from ca. 15 µm wide toward the margin to ca. 30 µm wide toward the stipe; consisting of a well-developed textura prismatica of 2-4 parallel hyphal layers extending at low to high angles to the surface of the apothecium, the individual cells frequently becoming disrupted and losing hyphal orientation and with hyaline to lightly pigmented and smooth, to coarsely roughened walls with granular deposits between adjoining cells. Outer covering layer present, generally well developed, but occasionally becoming detached from the outer surface and appearing naked, 0-2 layers of narrow hyphae with lightly to intensely pigmerited and coarsely roughened walls; individual hyphae becoming modified apically, with the terminal or the last two to three cells becoming greatly expanded and constricted at their septa; several apically free tips often detaching together and appearing scale-like. Hairs absent, but the apical cells of the hyphae of the outer covering layer become modified and appear hairlike. Margin narrow, constructed similarly to the upper portion of the apothecial flank, the apically free cells less expanded. Stipe constructed similarly to lower portion of the flank of the apothecium, the entire surface clothed with the apically free cells of the outer covering layer.

Known only from the type collection.

Leaves of Griselinia Iittoralis Raoul.

Dennis, Kew Bull. 15: 305, fig. 19. 1961.

When Dennis (1961, 1964) treated L. griseliniae, he failed to detect the black line stroma present on the leaves of the host plant and placed the species in the Helotiaceae. With the report here of the presence of a stroma, this species is surely a member of the Sclerotiniaceae, and is placed in the gentis Lanzia following the concept of Dumont (1972). This species appears to be most closely related to "Rutstroemia longipes" and "R. luteovirescens." In R. longipes the apothecia emit a reddish brown to purplish dye in 2% KOH, while in L. griseliniae a faint yellowish dye is given off. Rutstroemia longipes also lacks the characteristic outer covering layer of L. griselinae. Lanzia griseliniae is most easily distinguished from R. luteovirescens by characters of the ascospores. In L. griseliniae the ascospores are flattened on one side and slightly broader at one end, while in R. luteovirescens they are rarely slightly inequilateral, but not flattened on one side and both ends are more or less equal.

Holotype. Harihari, Westland, New Zealand, J. Dingley, leaves of Elaeocarpus dentatus, 8 Nov 1954 (K ex PDD 19052; isotype PDD). Westland, Reefton, S. D. Baker wood of Nothofagus fusca, 1 Dec 1952 (PDD 19404); Taranaki, Mt. Egmont, J. Dingley, indet. wood, 29 Jan 1953 (PDD 19403) ; same locality, J. Dingley, indet. leaf, 31 Jan 1953 (PDD 19402).

STROMA. Substratal, poorly developed, difficult to detect on host; evident at base of stipe of apothecium as rind cells; in section epidermoid to irregular in face view, the walls differentially pigmented. Unknown in culture. MACROCONIDIAL STATE. Unknown. SI'ERMATIA. Unknown. APOTHECIAL MORPHOLOGY. Apothecia solitary to gregarious, 1-2.5 mm in diam, to 2 mm high, when fresh flat, English red to Dragon's blood red, drying cupulate, darker deep orange concolorous with the receptacle and stipe; rehydrating slightly convex to slightly cupulate, lighter, concolorous, toward base of stipe, appearing woolly. APOTHECIAL ANATOMY. Asci 8-spored, 67-75(-85) x 5-6(-7) µm, produced from small croziers, cylindrical to slightly clavate, tapering slightly below to the base and there expanded and forming a small foot or not; wall narrow, to 1 µm, becoming thicker at the rounded to slightly truncate apex; pore J+, evident as two tiny blue dots in Melzer's reagent. Ascospores (7-)8-10 x 2-3 µm, biseriate above and uniseriate below or tiniseriate throughout, hyaline, fusoid to clavate to ellipsoid, in outline generally slightly broader at anterior end than posterior, equilateral to slightly inequilateral, with guttules generally poorly defined, rarely with two, tiny, obvious, internal, polar guttules, more commonly with two internal polar guttulate areas; walls thin or Appearing thickened in phloxine stain. Paraphyses equal to or slightly exceeding the asci, very abundant, branching and septate, filiform, not expanded at the apex and there 1.5-2 µm wide, hyaline, smooth, few staining intensely and appearing granular internally. Subhymenium a poorly defined zone beneath the asci, with a zone to ca. 60 µm wide toward the middle of the apothecium and narrower toward the margin, with hyphae narrower and more compact than the medullary excipulum below; composed of narrow, loosely interwoven, vertically oriented hyphae 2-3 µm wide, with hyaline and slightly thickened walls. Medullary excipulum well developed, not refractive or only slightly so in certain areas, consisting of loosely interwoven, branched, septate hyphae 2-3 µm wide, with several coalescing especially toward the ectal excipulum, and with smooth, hyaline and slightly thickened walls. Ectal excipulum: inner ectal excipulum poorly defined, but with a slightly refractive zone of narrow and more compact hyphae between the medullary excipultim and the outer ectal excipulum, the individual hyphae 2-3 µm wide with walls smooth, hyaline and slightly thickened. Outer ectal excipulum highly refractive, tapering from ca. 30 µm broad toward the stipe to ca. 45 µm broad toward the margin; consisting of narrow hyphae 2-4 µm wide, imbedded in a gelatinous matrix, extending more or less parallel to each other or slightly interwoven and extending parallel or at low angles to the surface of the apothecium, the individual hyphae septate, hyaline, branched and lacking roughened or pigmented walls. Outer covering layer poorly differentiated from the outer ectal excipulum, not detaching from the surface of the apothecium, composed of small-celled textura prismatica, 1-2 layers of golden hyphae with hyaline to subhyaline and slightly thickened walls, lacking any modification of the apical cells, hairs absent. Margin constructed similarly to the flank, with the individual hyphae narrower, the spaces between individual hyphae smaller and the gelatinous matrix less obvious. Stipe constructed similarly to the receptacle, hyphae in the central core becoming slightly to obviously interwoven.

On unidentified leaves and leaves of Elaeocarpus dentatus Vahl, and unidentified wood and wood of Nothofagus fusca Oest.

Dennis, Kew Bull. 15: 309, fig. 25. 1961.