Zanclospora brevispora S. Hughes & W.B. Kendr. 1965
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Descriptions
Zanclospora brevispora S. Hughes & W.B. Kendr. 1965
The visible colonies are widely effused or they may form brownish, com¬pact fructifications up to 1 mm in diameter but larger by confluence; they are composed of simple phialophores bearing straw-coloured to alutaceous globules of phialospores. The mycelium is immersed and composed of pale brown to dark brown, septate, branched hyphae 2.7-3.6 µm wide. The phialophores are simple, arise singly from swollen cells of the repent hyphae, and are crowded or in a thin turf 100-175(-220) µm high. They are generally straight, brown to dark brown, paler toward the distal end, septate, smooth-walled, 5.4-7.0 µm wide just above the basal cell which is up to 13 µm wide, tapering gradually to 4 µm toward the rounded apex. The cells of the phialophore are 14-18 µm long toward the base and progressively shorter toward the apex, where they are 3.6-5.0 µm long. The apical cell occasionally bears a collarette and functions as a phialide, but usually the apical 3 to 5 cells are sterile. The phialides, which occur in whorls of up to 7, arise just below the distal septa of a series of 4-6(-8) cells of the phialophore below the generally sterile apex. They are sessile, straight, narrowly ovoid to ovoid, generally tightly adpressed to the phialophore, pale brown to subhyaline, 6.4-9.4(-12.0) µm long, 3.0-4.0 µm wide, with an apical, hyaline to subhyaline, more or less funnel-shaped collarette 2.0-2.8 µm wide and 1.4-2.1 µm deep. The phialospores are hyaline, curved, and narrowly obovoid, being blunt at the distal end and tapered at the other, 5.4-8.0(-9.4) µm long, 1.4-2.0 µm wide, non-setulate, non-septate, produced in slime and finally enveloping the phialides as a straw-coloured to alutaceous mass.
Coloniae compactae vel effusae, brunneae. Mycelium immersum, ex hyphis septatis, ramosis, pallide brunneis vel brunneis 2.7-3.6 µm lat. compositum. Phialophora simplicia, recta, interdum curvata, brunnea vel atrobrunnea, supra pallidiora, levia, septata, 100-175(-220) µm long., supra basim 5.4-7.0 µm lat., apicem versus 4 µm lat., cellulis apicalibus 3-5 sterilibus. Phialides ad 7 in verticillo ex cellulis 4-6(-8) contiguis phialophorarum oriundae, sessiles, rectae, anguste ovoideae vel ovoideae, plerumque in phialophoro adpressae; pallide brunneae vel subhyalinae, 6.4-9.4(-12) x 3.0-4.0 µm, strophio infundibuli¬forme hyalino vel subhyalino, 2.0-2.8 µm lat., 1.4-2.1 µm alt., praeditae. Phialospora hyalina, leniter curvata, anguste obovoidea, ad basim attenuata, 5.4-8.0 (-9.4) x 1.4-2.0 µm non-setulata, non-septata, in massam mucosam strami¬neam vel alutaceam producta.
Habitat: in cortice Nothofagi solandri var. cliffortioidis.
Typus: in cortice Nothofagi solandri var. cliffortioidis, New Zealand, Wellington Province, Whakapapanui Track, Tongariro National Park, 5.III.1963, PDD 20647 (DAOM 96413b).
On bark of Nothofagus solandri var. cliffortioides, Wellington Province, Whakapapanui Track, Tongariro National Park, 5.III.1963, PDD 20647 (type) (DAOM 96413b).