Text anzeigen (PDF) - bei DuEPublico - Universität Duisburg-Essen
Text anzeigen (PDF) - bei DuEPublico - Universität Duisburg-Essen
Text anzeigen (PDF) - bei DuEPublico - Universität Duisburg-Essen
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
2. Taxonomic part 40<br />
90a Proper exciple fused, not visible from the outside, thalline rim lacerate, distinctly lobed<br />
and ±layered .............................................................................. Topeliopsis tasmanica<br />
90b Proper exciple ±free and visible from the outside, thalline rim different ..................... 91<br />
91a Ascospores becoming brownish .................................................. Thelotrema lepadodes<br />
91b Ascospores remaining hyaline ....................................................................................92<br />
92a Ascospores with thin cell walls, containing the stictic acid chemosyndrome ...................<br />
.................................................................................................. Thelotrema thesaurum<br />
92b Ascospores with thick cell walls, lacking secondary compounds Thelotrema lepadinum<br />
93a Ascospores becoming distinctly brownish ................................................................. 94<br />
93b Ascospores hyaline to yellowish .............................................................................. 100<br />
94a Thallus shiny, distinctly corticate, pores tiny to small, up to 30 µm in diam., proper<br />
exciple fused ......................................................................... Myriotrema desquamans<br />
94b Thallus predominantly dull and ecorticate, or shiny and corticate, then ascomata<br />
different ..................................................................................................................... 95<br />
95a Ascomata becoming chroodiscoid, lacking secondary compounds Reimnitzia santensis<br />
95b Ascomata perithecioid to apothecioid, containing stictic or norstictic acid, or an<br />
unknown anthraquinone (then thallus with reddish, K+ purple crystals) ..................... 96<br />
96a Thallus distinctly epiphloedal, thick, bulging away from substrate and with ±distinct<br />
reticulate pattern, calcium oxalate crystals conspicuous, abundant and often arranged in<br />
columns ......................................................................................................................97<br />
96b Thallus different, proper exciple predominantly free .................................................. 99<br />
97a Thallus with conspicuous reddish, K+ purple crystals, containing an unknown<br />
anthraquinone .................................................................................. Leptotrema wightii<br />
97b Thallus without red crystals, containing the stictic acid chemosyndrome ................... 98<br />
98a Ascomata clustered, often forming stromata-like structures, pores wide, disc visible,<br />
proper exciple predominantly free ........................................ Leucodecton glaucescens<br />
98b Ascomata arrangement differently, pores small, disc non-visible, proper exciple<br />
predominantly fused ............................................................ Myriotrema phaeosporum<br />
99a Ascospores becoming brownish at rather early stages, up to 35(40) µm long, containing<br />
norstictic acid ............................................................................ Leucodecton occultum<br />
99b Ascospores becoming brownish at late stages, up to 45(50) µm long, containing the<br />
stictic acid chemosyndrome ........................................... Leucodecton subcompunctum<br />
100a Ascospores with more than 12 x 4 loci ..................................................................... 101<br />
100b Ascospores up to 11(12) x 4 loci .............................................................................. 108<br />
101a Proper exciple fused ................................................................................................. 102<br />
101b Proper exciple becoming ±free, at least in older ascomata ........................................ 105<br />
102a Ascomata apothecioid, lacking secondary compounds .............. Topeliopsis decorticans<br />
102b Ascomata becoming chroodiscoid, containing the stictic or protocetraric acid<br />
chemosyndrome ...................................................................................................... 103