Perrotia gallica var. phyllocladiSynonymsTrichoscyphella phyllocladi Lachnellula phyllocladi
BiostatusPresent in region - Indigenous. Endemic
Images (click to enlarge) Caption: Figure 126. Perrotia gallica var. phyllocladi. A-E. Holotype. A. Apothecium. B. Asci and
paraphyses. C. Ascospores. D. Hairs. E. Ectal excipulum at base of receptacle. F-J. P.D.D.
19377. F. Apothecium. G. Ascus and paraphys | Caption: Fig. 13 .Trichoscyphella phyllocladi. Habit sketch x15, details x 660. |
Article: Spooner, B.M. (1987). Helotiales of Australasia: Geoglossaceae, Orbiliaceae, Sclerotiniaceae, Hyaloscyphaceae. Bibliotheca Mycologica 116: 711 p. Description: APOTHECIA erumpent, stipitate, gregarious or scattered. DISC 1.0-1.5 mm diam., plano-concave, pale orange, smooth, obscured by inrolled margin when dry. RECEPTACLE shallow
cupulate or patellate, densely clothed with white hairs. STIPE central, cylindric, shorter than disc
diam., clothed with white hairs in the upper part, dark and usually smooth at the base. HAIRS
200-250 x 3-4 µm, shorter on the stipe, hyaline, cylindric or somewhat tapered, 2-3 µm diam. at
the apex, obtuse, sparsely septate, thin-walled, granulate throughout. ASCI (78-)85-93 x 8.5-9.5
µm, 8-spored, cylindric or cylindric-clavate, narrowed below into a short stipe, apex broadly
rounded, thin-walled, without a visible apical pore. ASCOSPORES 8.5-11.5 x 5.0-6.0, mean
10.0 (SD 0.6) x mean 5.5 (SD 0.3) µm, hyaline, broadly ellipsoid or slightly ovate, sometimes
containing guttules, non-septate, smooth, uniseriate. PARAPHYSES filiform, obtuse or slightly
narrowed but not pointed at the apex, hyaline, guttulate, remotely septate, exceeding the asci by
up to loom, 2.0-2.5 µm diam. SUBHYMENIUM 15-20 µm thick, composed of closely woven,
hyaline hyphae 1-2 µm diam. MEDULLARY EXCIPULUM composed in the stipe of tightly
interwoven hyaline hyphae 1.5-2.5 µm diam., in the receptacle radially arranged forming a layer
30-35 µm thick, narrowing upwards and not differentiated at the margin, of undulating, septate,
hyaline hyphae 2-3 µm diam. lying parallel to the surface. ECTAL EXCIPULUM 60-70 µm thick
at the base of the receptacle, narrowed to 30-35 µm thick at the margin, and less clearly
differentiated on the stipe, composed of septate hyphae arranged at right angles to the surface,
becoming irregularly interwoven towards the stipe base but in the receptacle forming rows of
irregular, rounded cells up to 15 x 5 µm, with thickened, refractive walls. Towards the margin
these cells become narrower and thinner walled, lying in rows curving round parallel to the
surface at the margin Habitat: On bark of Phyllocladus alpinus Hook. f. Distribution: New Zealand.
Known only from the type locality. Notes: The ascus characters suggest Perrotia as an appropriate genus for this taxon and the excipular
structure, closely similar to that of the type of the genus in having thick-walled, agglutinated
elements arranged more or less perpendicularly to the surface, provides additional evidence for
this.
The apparent lack of any distinct difference between this taxon and P. gallica suggests that they
cannot be regarded as separate species. The geographical isolation and difference in host, as
noted above, indicates the taxa are not identical and recognition at varietal level seems
appropriate.
Article: Dennis, R.W.G. (1961). Some inoperculate Discomycetes from New Zealand. Kew Bulletin 15(2): 293-320. Notes: There seems to be little beyond the small size of the apothecia to differentiate this from
Trichopeziza gallica (Karst. & Har.) Bond., described from an unnamed conifer in France. In
view of the uncertainty regarding the substrate of the latter I have thought it advisable to
provide a different specific epithet which will be clearly applicable to the New Zealand fungus,
especially as the two fungi in question are literally poles asunder.
Article: Spooner, B.M. (1987). Helotiales of Australasia: Geoglossaceae, Orbiliaceae, Sclerotiniaceae, Hyaloscyphaceae. Bibliotheca Mycologica 116: 711 p. Notes: I have seen no material of this species which has been reported only from France. It was
redescribed by Grelet (1951) and by Dharne (1965), the latter having reported the type host to
be Larix decidua and cited a further collection on Abies pectinata. The New Zealand species
TrichoscypheIla phyllocladi Dennis was compared with L. gallica by the author and
considered to differ only in substrate and geographical distribution. The type material of T.
phyllocladi indeed matches the description of L. gallica in all other respects, and there can be
little doubt that they are closely related. The broadly rounded, thin-walled, undifferentiated
ascus apex is characteristic of Perrotia to which genus both taxa are here considered to
belong.
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