Pleosporales - CBS - KNAW
Pleosporales - CBS - KNAW
Pleosporales - CBS - KNAW
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Fungal Diversity<br />
Fig. 38 Isthmosporella pulchra<br />
(from ILLS 53086, holotype).<br />
a Section of an ascoma. b<br />
Section of a partial peridium. c–<br />
e Broadly clavate asci with short<br />
pedicels. f Pseudoparaphyses.<br />
g–j Ascospores. Note the 2-<br />
celled isthmus in J and mucilaginous<br />
sheath in G and H.<br />
Scale bars: a=50 μm, b–j=<br />
20 μm (figure with permission<br />
from http://fungi.life.illinois.<br />
edu/search/fwa_lit_refs)<br />
Literature: Barr 1987b, 1990a, 1992a; Lindau 1897; von<br />
Niessl 1872.<br />
Type species<br />
Kalmusia ebuli Niessl, Verh. nat. Ver. Brünn 10: 204<br />
(1872). (Fig. 39)<br />
Ascomata 290–360 μm high×300–520 μm diam., solitary,<br />
scattered, or in small groups, immersed to erumpent,<br />
globose or subglobose, coriaceous, wall black, with or<br />
without papilla, ostiolate (Fig. 39a). Papilla small, up to<br />
100 μm high, with small ostioles (Fig. 39a). Peridium 15–<br />
40 μm wide, comprising one cell type of small, pigmented,<br />
thick-walled cells of textura prismatica to textura angularis,<br />
cells ca. 5×3μm diam., cell wall 2–3 μm thick (Fig. 39b<br />
and c). Hamathecium of dense, delicate pseudoparaphyses, 1–<br />
1.5 μm broad, septate, branching and anastomosing between<br />
and above asci, embedded in mucilage. Asci 75–125×10–<br />
15 μm (x ¼ 90:5 12mm, n=10), 8-spored, bitunicate,<br />
fissitunicate unknown, clavate, with a long, narrowed, furcate