L. Trierveiler-Pereira: Ascomycetes (Pezizomycotina, Ascomycota) from Brazil: New records
114
18.3–31.2 cm total length × 1.8–3.2 cm
diam, dark brown to blackish, smooth,
punctate by the black ostioles; internally
whitish to cream, becoming hollow; stipe
short, 1.8–2.2 cm high × 1.2–2.4 cm wide,
smooth, blackish. Perithecia cylindrical to
globose, immersed, up to 1 mm in diam.,
blackish.
Asci cylindrical, > 180 × 5 µm, eight-
spored, apical ring cylindrical, urn-shaped
to inverted hat-shaped, 3–4 µm high × 3 µm
broad, turning dark blue in Melzer’s reagent;
ascospores ellipsoid-inequilateral, 13–16 ×
4.5–6 µm, dark brown, uni to biguttulate,
germ slit conspicuous, straight, running full
length of the spore.
Habitat.— Growing on rotten dicotyle-
donous wood.
Studied material.— BRAZIL. State of
Paraíba, João Pessoa, Jardim Botânico, 01-
IX-2009, M.A. Neves MAN 496 (FLOR).
Comments.— Xylaria poitei is one of the
largest species of Xylaria (Rogers and Cal-
lan, 1986) and it has been reported from
tropical and subtropical America, Africa,
and Asia (Dennis, 1956; Rogers, 1984; Patil
et al., 2012). Xylaria herculea (Miq.)
Cooke also has large stromata, but its as-
cospores are larger: 20–24 x 6–8 µm (Pan-
de and Wainganker, 2001). Xylaria hercules
Speg., described from northern Argentina,
is a synonym of X. poitei (Dennis, 1956;
Rogers, 1984). A comparison among Xylar-
ia species with large stromata (10–35 cm
long) is presented by Pande and Waingank-
er (2001). This is the first report of X. poi-
tei from Brazil.
ACKNOWLEDGMENTS
I am very grateful to Dr. Andrea I. Rome-
ro for her patience, encouragement, and tea-
chings on the taxonomy of ascomycetes –
this article is dedicated to her. I am grateful
indebted to Dr. Maria Alice Neves, for put-
ting her collection and photograph of X. poi-
tei at my disposal; Dr. Prisicila Chaverri for
helping in the identification of M. verruculo-
sa; and colleagues who helped during the
field expeditions. André A.R. de Meijer is
acknowledged for valuable improvements on
the first draft of this manuscript.
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