| B- Stromata hemispherical to almost spherical
|
B1 |
| B- Stromata effused to pulvinate
|
B4 |
| |
| B1- Stromatal surface greyish sepia (106) to dark brick (60). KOH-extractable pigments
greenish yellow (16), ascospores 17-22 x 9-11 µm
|
H. intermedium |
| B1- Stromatal surface rust (39), bay (6) or dark brick (60); KOH-extractable pigments orange (7),
ascospores averaging less than 15 µm long
|
B2 |
| |
| B2- Ascal apical ring absent
|
H. commutatum |
| B2- Ascal apical ring present, amyloid
|
B3 |
| |
| B3- Stromata growing mainly on Fagus. Ascospores 11-13.5 x 5-6.5 µm
|
H. fragiforme |
| B3- Stromata growing on other hosts, rarely on Fagus. Ascospores 7-9 x 3.5-5 µm
|
H. howeianum |
| |
| B4- Stromatal surface with vinaceous purple (101) to dark vinaceous (82) tones
|
B5 |
| B4- Stromatal surface with orange (7), rust (39), brick (60), or sepia (63) tones
|
B12 |
| |
| B5- Ascospores averaging more than 20 µm long
|
B6 |
| B5- Ascospores averaging less than 15 µm long
|
B7 |
| |
| B6- KOH-extractable pigments livid violet (79), pale purplish grey (127) or absent,
ascospores 18.5-23 x 8-10 µm with germ slit spore-length
|
H. vogesiacum |
| B6- KOH-extractable pigments olivaceous (45) to isabelline (65),
ascospores 22-31 x 8.5-11 with faint germ slit less than spore-length
|
H. macrosporum |
| |
| B7- KOH-extractable pigments dilute livid violet (79). Ascospores 8-11.5 x 4.5-5 µm
|
H. carneum |
| B7- KOH-extractable pigments orange (7). Ascospores 9-11.5 x 4.8-6 µm.
|
H. petriniae |
| B7- KOH-extractable pigments amber (47) to olivaceous (48), with yellow
green or brown tones
|
B8 |
| |
| B8- Stromatal surface with a metallic shine when mature; perithecia obovoid to tubular, up to 1000µm high.
|
H. macrocarpum |
| B8- Stromatal surface lacking a metallic shine when mature; perithecia spherical to obovoid,
small-sized, not tubular
|
B9 |
| |
| B9- Ascospores with straight germ slit.
|
B10 |
| B9- Ascospores frequently with a sigmoid germ slit.
|
B11 |
| |
| B10- KOH-extractable pigments amber (47) to ochreous (44) or greenish yellow (16); ascospores
9-12 x 4.5-6 µm, ellipsoid-inequilateral, with a dehiscent perispore
|
H. perforatum |
| B10- KOH-extractable pigments olivaceous (48) to grey olivaceous (107);
ascospores 12-15 x 5-7 µm, ellipsoid-equilateral often pyriform, with indehiscent perispore
|
H. fuscopurpureum |
| |
| B11- Stromata with bright yellow granules, KOH-extractable pigments isabelline (65) to
grey olivaceous (107); restricted to Quercus, with a boreal distribution.
Ascospores 10-13.5 x 4-5 µm
|
H. porphyreum |
| B11- Stromata with dull yellow granules, KOH-extractable pigments amber (47), luteous (12), citrine (13),
olivaceous (48); plurivorous and widespread, but not recorded on Quercus. Ascospores 11-16 x 5-8 µm
|
H.fuscum |
| |
| B12- Young stromata with a bright yellow to orange fimbriate margin. Perithecia small-sized,
100-300 µm diam, on a well developed black basal tissue
|
B13 |
| B12- Young stromata without a bright yellow to orange fimbriate margin
|
B14 |
| |
| B13- Ascospores 5-7 x 2.5-3.5 µm, ellipsoid-inequilateral
|
H. ticinense |
| B13- Ascospores 8-11 x 4-5 µm, ellipsoid-equilateral
|
H. subticinense |
| |
| B14- KOH-extractable pigments orange (7) to sienna (8)
|
B15 |
| B14- KOH-extractable pigments different, luteous (12), amber (47), greyish
sepia (106), hazel (88)
|
B23 |
| |
| B15- Ascal apical ring highly reduced or absent, inamyloid
|
B16 |
| B15- Ascal apical ring present, amyloid
|
B17 |
| |
| B16- Stromata discoid, encircled with a swollen stellate margin,
on bark of Fraxinus. Ascospores 9.5-12 x 5-6 µm
|
H. cercidicolum |
| B16- Stromata pulvinate to hemispherical, known on
bark of Carpinus. Ascospores 9-11 x 4.5-5.5 µm
|
H. commutatum |
| |
| B17- Ascospores averaging more than 14 µm long
|
B18 |
| B17- Ascospores averaging less than 12 µm long
|
B19 |
| |
| B18- Stromata pulvinate restricted at base, with rust brown to ochraceous brown
granules beneath surface. Growing on Tilia. Ascospores 14-17 x 6.5-8 µm
|
H. ferrugineum |
| B18- Stromata effused to pulvinate, with red
granules beneath surface. Growing on various hosts. Ascospores 15-18 x 6-7.5 µm
|
H. julianii |
| |
| B19- Perithecia 0.1-0.35 mm diam. Ascospores 7-10 x 3-4.5 µm
|
H. salicicola |
| B19- Perithecia averaging more than 0.4 mm diam
|
B20 |
| |
| B20- Stromata erumpent, pulvinate,
small-sized, up to 6 mm diam. Growing on Populus. Ascospores 8-10 x 3.5-4.5 µm
|
H. laschii |
| B20- Stromata non erumpent, effused to pulvinate, larger. Ascospores larger
|
B21 |
| |
| B21- KOH-extractable pigments orange (7) to rust (39) or sienna
(8), ascospores brown, ellipsoid-inequilateral; widespread and plurivorous
|
B22 |
| B21- KOH-extractable pigments usually luteous (12) hazel (88), sometimes
sienna (8); ascospores dark brown, nearly equilateral, 9.5-12.5 x 4.8-6 µm;
restricted to Sorbus, with a boreal distribution
|
H. liviae |
| |
| B22-Ascospores 9-13 x 4-5.5 µm. Germ slit straight.
|
H. rubiginosum |
| B22- Ascospores 11.5-14.5 x 6-7 µm. Germ slit sigmoid
|
H. crocopeplum |
| |
| B23- Ascospores dark brown, nearly equilateral; restricted to Sorbus,
with a boreal distribution; ascospores 9.5-12.5 x 4.8-6 µm
|
H. liviae |
| B23- Ascospores medium brown, inequilateral; plurivorous
|
B24 |
| |
| B24- KOH-extractable pigments amber (47) with greenish-yellow tone, ostioles surrounded
by a conspicuous white material; perithecia obovoid, 300 µm diam
|
H. perforatum |
| B24- KOH-extractable pigments greyish sepia (106) to umber (9), ostioles lacking white material,
perithecia usually tubular, 500 µm diam, up to 1 mm high
|
H. macrocarpum |
