Notes:
(See Observation 271993)

SPECIES: Graphis plumierae
DATE: 2014/06/28
SPECIMEN Nº: 6573
PLACE: Sta. Eufémia – Serra de Sintra, Sintra, Portugal
HABITAT: Mixed forest, dominated by Quercus trees
SUBSTRATE: Quercus tree
MICRO FEATURES:

• Striation: Entire
• Carbonization: Lateral
• Inspersion: Inspersed
• Ascospores: Transverse – small
  • GROUP No.: 6 (as defined in Ref. 1 of this observation)

CHEMISTRY: K+y_r (yellow to red)
ASCOSPORES DIMENSIONS:
(26.5) 32.5 – 39.9 (43.3) x (6.4) 6.9 – 7.8 (7.9) µm
Q = (4.1) 4.3 – 5.6 (6.1) ; N = 24
Me = 35.5 × 7.3 µm ; Qe = 4.8
EVOLUTION IN THE KEY: (according Ref. 1 of this observation)
Group 6: Labia entire, excipulum laterally carbonized, hymenium inspersed, ascospores transversely septate
1 Norstictic or stictic acid (K+ yellow or K+ yellow forming red crystals). . . . . . 2
2 (1) Norstictic acid (K+ yellow forming red crystals) . . . . . . . . . . . . . . . . . . . 4
4 (2) Ascospores small to very small (15–45 × 5–9 μm); lirellae variable . . . . . . 5
5 (4) Disc concealed; lirellae variable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
7 (5) Labia white-pruinose; lirellae immersed, with lateral thalline margin (caesiella morph); Neotropics [holotype: Guadeloupe, Duss 1189 (TUR-Vainio 27732!)] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Graphis plumierae Vain.

EXTERNAL LINKS: (with illustrations of the species)
http://www.discoverlife.org/mp/20p?see=I_RL236&res=640