Taranaki. Mt. Egmont, April 1946, J.M.D. Wellington. Tararua Ra., Gable End Ridge, November 1932, E.E.Chamberlain.

Stroma discoidal, occasionally pulvinate, 2.5-7 mm. diameter, 1-2 mm. thick, scattered or caespitose, often distorted by mutual pressure, ochraceous, occasionally rust coloured when dried, punctate with dark coloured ostioles, margins free, undulate, sometimes thickened, centrally attached to host, outer layer of tissue pseudoparenchymatous, cells 5-10 µ diameter, lightly pigmented yellow, inner tissue prosenchymatous, hyphae loosely aggregated, 5-7.5 µ diameter, hyaline, thin walled. Perithecia oval, sometimes globose, 0-5 x 0.2-0.5 mm., crowded in superficial pigmented zone, ostiole 50-70 µ, papillate, perithecial wall 5-10 µ thick, pigmented yellow, distinct. Asci cylindrical, 60-100 x 4 µ, with 16 unicellular part-spores; pseudoparaphyses evanescent. Spores globose or cuboid, 3.5-4 µ, ovate or oblong when 5-5.5 x 3.5-4 µ, hyaline, thin walled, finely echinulate.

Distribution: New Zealand.

Habitat: On rotten wood.

Type Locality: Waipawa, Hawkes Bay.

Stroma pulvinate, sometimes orbicular, 5-10 mm. diameter, 3 mm. thick, freely scattered on host, buff, vinaceous buff margins thickened, incurved but free, centrally attached, sometimes appearing as if stalked, outer tissue pseudoparenchymatous, cells small, 2-4 µ diameter, pigmented and thickened, inner hyphae up to 6 µ diameter, hyaline, prosenchymatous. Perithecia 150-200 µ diameter, oval or globose, superficially arranged in the pigmented zone, ostiole 60-70 µ, not papillate. Asci cylindrical, 85-100 x 4-5 µ, apex truncate, with 16 part-spores, uniseriate; pseudoparaphyses evanescent. Part-spores cuboid or globose, 3-4 µ diameter, or oval then 5-6 x 3-4 µ, lightly pigmented, tuberculate.

Distribution: New Zealand.

Habitat: On rotten wood.

Stroma pulvinatum, 5-10 mm. diam. ad medium substratum affixum, bubalinum vel vinoso-bubalinum, prosenchymatum, marginibus incurvatis et liberis, ostiolis protrudentibas punctatum. Perithecia globosa velorata, 0.15-0.3 mm. diam. in regione superficiali stromatis immersa, ostiolo 60-70 µ longo, papillato. Asci cylindrici 85-100 x 4-5 µ, 16 sporis divisis uncellularibus, cuboidibus vel globosis 3-4 µ diam., leviter tinctis, echinulatis.

The species resembles H. pulvinata, but the stroma is discrete, never aggregated together, margins free, centrally attached to a substratum. Spores are usually small, although unevenly divided part-spores are common. Occasional spores fail to divide at the septa.

Coprosma robusta Raoul Auckland. Waitakere Range, Waiatarua, November 1948, J.M.D. (type collection).

Coprosma robusta Raoul Auckland. Titirangi, May 1950, J.M.D. Podocarpus ferrugineus D.Don Auckland. Rotorua, Te Whaiti, June 1950, J.M.D. Unknown host Auckland. Hunua Ra., Mangatawhiri Stream, August 1946, J.M.D. (type collection).

Stroma irregular, pulvinate, convoluted or cerebriform when fresh, 2.5-4 mm. diameter, often united to form an effuse stroma up to 2 cm. in length, 1-1.25 mm. thick, vinaceous brown, when fresh buff suffused vinaceous brown, tuberculate, tubercles corresponding to underlying perithecia, ostiole papillate, dark coloured, margins incurved, united to substratum, pseudoparenchymatous, outer cells 3-5 µ diameter, compacted, pigmented and thickened, inner cells up to 10 µ diameter, hyaline. Perithecia oval or pyriform, 0.3-0.5 x 0.25 mm., immersed in superficial zone of stroma, ostiole 75-100 µ long, papillate, perithecial wall 5-10 µ thick, hyaline. Asci cylindrical, 100-180 x 4-51, with 16 part-spores, uniseriate; pseudoparaphyses evanescent. Part-spores globose, 5-6 µ, oval or pyriform then 6-8 x 4-5 µ, lightly pigmented yellow, echinulate.

Distribution: New Zealand.

Habitat: On rotten wood.

Stroma inaequale, convolutum, 2.5-4 mm. diam. confluens ut stroma effusum, ultra 1 cm. longum 1-1.25 mm. densum brunneo-vinosum, tuberculatum, pseudoparenchymatum formet. Perithecia ovata vel pyriformia 0.3-0.5 x 0.25 mm., in regione inaequale superficiali immersa, ostiolo papillato 75-100 µ longo. Asci cylindrici 100-180 x 4-5 µ, 16 sporis divisis pseudoparaphysibus evanescentibus. Sporae divisae globosae 5-6 µ vel ovatae 6-8 x 4-5 µ echinulatae, pallide luteae.

Spores are larger than those of H. pulvinata and the stroma is dark vinaceous brown when dry. Similarly the effuse tuberculate stroma separates this species from H. rufa or H. vinosa.

Unknown host Auckland. Hunua Ra., Mangatawhiri Stream, August 1946, J.M.D. (type collection).

Stroma irregularly shaped, more or less pulvinate, sometimes discoidal but usually flattened, often concave, 4-6 mm. diameter, 1 mm. thick, ochraceous, sometimes buff, farinaceous, margins thickened, incurved, united to substratum, sterile; stroma pseudoparenchymatous, cells 5-8 µ diameter, outer cells lightly pigmented and thickened, inner cells thin walled, hyaline. Perithecia globose, 0.2-0.3 mm., irregularly arranged in a superficial zone, ostiole 100-180 µ long, not papillate above surface, perithecial wall 10-15 µ thick, distinct, lightly pigmented yellow. Asci cylindrical, 80-160 x 8-14 µ, ends truncate with sixteen part-spores; pseudoparaphyses effuse. Part-spores globose 9-12 µ, or oval, then 9-16 x 9-12 µ, yellow or olivaceous, coarsely echinulate.

Distribution: New Zealand.

Habitat: On bark of living Leptospermum scoparium Forst.

Stroma inaequale 4-6 mm. diam., 1 mm. crassum ochraceum vel bubalinum farinosum, pseudoparenchymatum marginibus densatis, incurvatis et ad substratum conjunctis. Perithecia globosa 0.2-0.3 mm. diam. in regione superficiali stromatis inaequaliter ordinata, ostiolo 100-180 µ longo, non papillato. Asci 80-160 x 8-14 µ, 6-8 sporis uniseptatis et articulatis, maturitate 12-16 sporis divisis, pseudoparaphysibus diffusis. Sporae divisae globosae vel cuboides 9-16 x 9-12 µ dense echinulatae, lutae vel olivaceae.

A distinct species with large dark-coloured spores. Perithecia are irregularly distributed in a superficial layer of the stroma. The thick margins are always sterile.

Auckland. Waitakere Ra., off Anawhata Road, October 1946, J.M.D. (type collection); September 1949, J.M.D.

Leptospermum scoparium Forst. Auckland. Bay of Islands, Ngaitonga Ra., June 1948, J.M.D. (type collection); Whangarei, June 1948, J.M.D. Unknown host Auckland. Hanna Range, Kohukohunui, October 1949, J.M.D.

Stroma pulvinate, convoluted, 5 x 2-8 mm., 0.5-1.5 mm. thick, aggregated in clusters, ochraceous, or chestnut brown when dry and mature, luteus when fresh, wrinkled, punctate with dark coloured ostioles, margins incurved and united to bark or decorticated wood, pseudoparenchymatous, outer cells 2-5 µ, pigmented and thickened, inner cells 8-10 µ diameter, hyaline, loosely aggregated. Perithecia oval, 0.2-0.3 x 0.15-0.2 mm., superficially arranged on stroma, ostiole 60-70 µ long, papillate, perithecial wall 10-15 µ thick, pigmented. Asci cylindrical, 65-90 x 4 µ, ends truncate with 16 unicellular part-spores, uniseriate; pseudoparaphyses evanescent. Part-spores globose or cuboid, 3.5-4.5 x 3.5 µ, hyaline, finely echinulate.

Distribution: New Zealand.

Habitat: On rotten wood.

Stroma pulvinatum 2-8 x 0-5-1-5 mm., in coronas aggregatum, ochraceum vel brunneo-castaneum, rugosum, pseudoparenchymatum, marginibus incurvatis et ad substratum conjunctum. Perithecia ovata 0.2-0.3 x 0.15-0.2 mm. in regione superficiali stromatis ordinata, ostiolo 60-70 µ longo, non papillato. Asci cylindrici 65-90 x 4 µ, 16 sporis unicellularibus pseudoparaphysibus evanescentibus. Sporae divisae, globosae vel cuboides 3.5-4.5 x 3.5 µ, hyalinae, subtiliter echinulatae.

Stromata are aggregated in clusters, usually on the undersurface of logs. The species is similar to H. patella Cooke and Peck, but the stroma is large and forms a convoluted mass which when dried shrinks to at least half its size.

Leptospermum scoparium Forst. Auckland. Bay of Islands, Ngaitonga Ra., June 1948, J.M.D. (type collection)

Melicytus ramiflorus Forst. Auckland. Little Barrier Island, November 1947, J.M.D.; Waitakere Ra., Cutty Grass Road, August 1948, J.M.D. (type collection); Cascade Kauri Park, May 1948, J.M.D. Beilschmiedia tawa (A.Cunn.) Hook.f. and Benth. Auckland. Rotorua, near Waiotapu, June 1950, J.M.D.

Stroma discoidal, sometimes concave, 1-4 mm. diameter, 1 mm. high, scattered, luteous or ochraceous, translucent, punctate with dark spores in underlying perithecia, margins thickened, rounded, free, centrally attached to host, sometimes appearing as if shortly stipitate; pseudoparenchymatous, outer cells small, 2-4 µ, lightly pigmented, not thickened, inner cells 10 µ diameter, hyaline, collapsed in dried specimen. Perithecia oval or globose, 0.2-0.3 x 0.3 mm., superficially arranged and confined to the centre of the disc, margins sterile, ostiole 80-100 µ long, papillated above surface of stroma, perithecial wall 20 µ thick, hyaline but distinct. Asci cylindrical 45-65 µ x 4 µ, thin walled, with 16 unicellular part-spores, uniseriate; pseudoparaphyses evanescent. Part-spores globose or cuboid, 2.5-3.5 µ diam., olivaceous, echinulate.

Distribution: New Zealand.

Habitat: On dead branches.

Stroma discoidale 1-4 min. diam., 1 mm. densum, ochraceum vel luteum translucens, in peritheciis substratis sporis fuscis punctatum, marginibus rotundis, densatis, liberis. Perithecia ovata vel globosa 0.2-0.3 x 0.3 mm., in regione superficiali stromatis immersa, ostiolo 80-100 µ longo, papillato. Asci cylindrici 45-65 µ x 4 µ, 16 sporis divisis, unicellularibas, pseudoparaphysibus absentibus. Sporae divisae globosae vel cuboides 2. 5-3.5 µ, echinulatae, olivaeeae.

When immature, this species appears similar to small specimens of H. gelatinosa. The immature stroma is bright yellow and translucent and is similar in appearance to a discomycete. It differs from H. gelatinosa in that perithecia are sunken in the stroma, never causing the stroma to be tuberculate, but as in H. gelatinosa the mature stroma appears dark coloured with the pigmented spores in the underlying perithecia. Part-spores are evenly divided into globose or cuboid, echinulate spores. Immature specimens forwarded to Kew by Colenso (b229) are labelled H. saccharina Berk. and Curt. on the sheet. Other specimens collected by Colenso and determined as H. saccharina by Cooke have been renamed H. colensoi by C.G.Lloyd (1924).

Auckland. Little Barrier Island, November 1947, J.M.D.; Waitakere Ra., Cutty Grass Road, August 1948, J.M.D. (type collection)

Beilschmiedia tawa (A.Cunn.) Hook.f. and Benth. Auckland. Near Alfriston, August 1948, J.M.D. (type collection). Alectryon excelsior Gaertn. Auckland. Near Alfriston, September 1947, J.M.D. Unknown host Auckland. Near Alfriston, September 1947, J.M.D.

Stroma discoid, 1-2 mm. diameter, 0.5-1 nim. thick, scattered, numerous, pulvinate when fresh but convex when dry, brown vinaceous, punctate with dark papillate ostioles, margins rounded, free, stroma centrally attached to a substratum, pseudoparenchymatous, cells up to 15 µ diameter, outer cell pigmented and thickened, inner cells thin walled, hyaline. Perithecia globose, 0.15-0.25 mm. diameter, arranged in a superficial zone of stroma, ostiole up to 80 µ long, papillate; perithecial wall 10-15 µ thick, pigmented, distinct. Asci cylindrical, 70-80 x 4-6 µ, thin walled, with 16 unicellular part-spores, uniseriate, pseudoparaphyses branched, ramifying in cavity of perithecia. Part-spores cuboid or globose, 3.5-4.5 µ, or more or less oval when 5-4 x 3.0-4.0 µ, olivaceous, echinulate.

Distribution: New Zealand.

Habitat: On rotten wood.

Stroma discoidale, 1-2 mm. diam., 0.5-1 mm. densum, pulvinatum, brunneo-vinosum, tuberculatum, ad medium substratum affixum, pseudoparenchymatum ostiolis papillatis, marginibus rotundis, liberis. Perithecia globosa 0.15-0.25 mm. diam. in regione superficiali stromatis ordinata, ostiolo 70-80 µ longo, papillato. Asci cylindrici 70-80 x 4-6 µ, 16 sporis divisis unicellularibus, pseudoparaphysibus ramosis. Sporae divisae globosae vel cuboides 3.5-4.5 µ, vel ovatae 4.0-5.0 x 3.0-4.0 µ, olivaceae, echinulatae.

When fresh this species resembles H. rufa, but the pigmented spores and its distinct papillated ostioles sharply differentiates it from others described from New Zealand. H. tawa may be separated from H. novae-zealandica by its larger spores and the darker coloured stroma.

Beilschmiedia tawa (A.Cunn.) Hook.f. and Benth. Auckland. Near Alfriston, August 1948, J.M.D. (type collection).

Stroma pulvinate, slightly convoluted, rarely orbicular, 5-6 x 2.5-5 mm., 0.5-1 mm. thick, scattered or gregarious, cream or buff suffused brown, punctate with translucent, sunken ostioles, margins incurved, sometimes thickened but free, undulate, stroma centrally attached, pseudoparenchymatous, cells up to 10 µ diameter, outer tissue compacted, hyaline, thin walled collapsed in dried specimens. Perithecia globose, 0.15-0.2 mm. in diameter arranged in superficial zone of stroma, ostiole 70-80 µ, not papillate, perithecial wall 15-20 µ thick, distinct and lightly pigmented yellow. Asci cylindrical, 70-95 x 4-6 µ with 12-16 unicellular part-spores; pseudoparaphyses absent. Spores globose or cuboid, 3-4 µ diam. or oval then 5-7 x 3-4 µ, echinulate, hyaline.

Distribution: New Zealand.

Habitat: On bark of dead branches.

Stroma pulvinatum, leviter convouum. 5-6 mm. diam., 1-5 mm. crassum, cremeum bubalinum, brunneo-suffusum, ostiolis submersis translucentibus punctatum, ad medium substratum affixum, pseudoparenchymatum, marginibus incurvatis plerumque densatis liberis. Perithecia globosa 150-200 µ diam., in regione superficiali stromatis immersa, ostiolo 70-80 µ longo, non papillato. Asci cylindrici 70-100 x 4-6 µ, 12-16 sporis divisis, pseudoparaphysibas absentibus. Sporae divisae globosae vel cuboides, 3-4 µ, vel ovatae 5-7 x 3-4 µ, echinulatae, hyalinae.

The sunken translucent ostioles serve to separate the species from H. hunua, H. coprosma and H. pulvinata. The stroma is neither pulvinate nor prosenchymatous and margins are thickened but free.

Suttonia salicina Hook.f. Auckland. Coromandel Peninsula, Colville, January 1947, J.M.D. (type collection).

Stroma irregularly shaped, sometimes more or less discoidal, 2-5 mm. diameter, 1-0.5 mm. thick, brown vinaceous, when fresh, chestnut brown, pulvinate, but wrinkled when dry, margins incurved, usually free, occasionally united to substratum; outer tissue pseudoparenchymatous, cells 3-5 µ diameter, pigmented and thickened, inner tissue prosenchymatous, sometimes a loosely aggregated pseudoparenchyma, cells 8-12 µ, hyaline, thin walled. Perithecia globose or oval, 150-200 µ diameter, compacted in a superficial zone, ostiole 60 µ long, not papillate; perithecial wall 10-15 µ thick, pigmented yellow, distinct. Asci 65-70 x 3-4 µ, cylindrical with 16 part-spores, uniseriate pseudoparaphyses effuse. Part-spores globose or cuboid, 3-3.5 µ diameter, oval or pyriform when 4-5.5 x 3-3-5 µ, hyaline, finely echinulate.

Type Locality: Waitaki, New Zealand.