## 3 Results
### Taxonomy
; Lobes: rounded, 5-8 mm; Upper surface: light blue when wet, gloomy to brown when dry, rarely pruninose on the margin; Upper cortex: paraclectchymatous, colorless, 40-80 \(\upmu\)m thick; Medulla: pale, 200-280 \(\upmu\)m thick; Photobiont: _Asterochloris_ and _Nostoc_, both present in a single photobiont layer, 70-150 \(\upmu\)m thick in thallus and 60-100 \(\upmu\)m in apothecium; Lower cortex: lacking; Lower surface: pale to brown, indistinctly veined, contentose, without cephalodia, with clusters of simple or branched rhizines; Apothecia: large, rounded, irregularly scattered, sunk in depressions in the upper surface, red-brown to black, slightly concave, thalline margin absent; Asci: clavate, _Peltigena_-type, 4-spored; Ascospores: red-brown or dark brown, 1-septate with a median constriction, ellipsoid to fusiform, wall non-uniformly thickened, surface ornamented with broad reticulating ridges and irregular lacunae, dimensions: 35-65 \(\times\) 16-23 \(\upmu\)m.  
Chemistry: Gyrophoric acid, methyl gyrophorate, tenuiorin, and 2\({}^{\prime}\)-O-methyltenuiorin (detected by TLC and HPLC). Ecology and distribution: It grows in high-altitude areas and is mainly found in calcareous soil on stone, usually growing together with or on hyrophytes. It is distributed in East Africa [71], Ethiopia [5], Mexico [72], New Guinea [73], and China. Note: This species could be distinguished by its morphological characters of the thallus and the single photobiont layer with both cyanobacterial and chlorophyte cells. It is similar to _P. tenuior_, but _P. simensis_ has a thicker photobiont layer up to 150 \(\upmu\)m in thallus and 100 \(\upmu\)m in apothecium. Specimens examined: Ethiopia, Amhara Region, Simien Mountains, [PERSON], H-NYL 32,912 (holotype); H-NYL 32914. China, Sichuan Prov., Liangshan Yi Autonomous Prefecture, Muli Co., 27\({}^{\circ}\)43\({}^{\prime}\)30.82\({}^{\prime\prime}\) N, 101\({}^{\circ}\)14\({}^{\prime}\)11.52\({}^{\prime\prime}\) E, Alt. 3010 m, 11 September 2021, [PERSON] et al., XY21-274, 21-70422; Litang Co., 30\({}^{\circ}\)25\({}^{\prime}\)30.27\({}^{\prime\prime}\) N, 101\({}^{\circ}\)18\({}^{\prime}\)07.81\({}^{\prime\prime}\) E, Alt. 3296 m, 12 July 2022, [PERSON], LD22-696, LD22-697; Yunnan Prov., Shangrila city, road side of X246, 26\({}^{\circ}\)37\({}^{\prime\prime}\)56.13\({}^{\prime\prime}\) N, 99\({}^{\circ}\)43\({}^{\prime}\)31.28\({}^{\prime\prime}\) E, Alt. 3110 m, 15 July 2023, [PERSON] et al., 23-75761. **Pseudosolorina spongigosa** (Sm.). [PERSON] and [PERSON], comb. nov. **Figure 11**  
\(\equiv\)_Lichen spongigiosus_ Sm., in Smith and Sowerby, _Engl. Bot._ 20: tab. 1374 (1805)  
_= Colleman spongiosum_ Ach., _Lich. Univ._: 661 (1810)  
_= Lichen furrous * spongigosum_ (Ach.) [PERSON], _Encycl. Meth. Bot._, Suppl. (Paris) 3(2): 416 (1813)  
_= Polychidium spongigosum_ (Ach.) [PERSON], _Nat. Arr. Brit. Pl._ (London) 1: 402 (1821)  
_= Lexanora limbata_ Sommerf., _Suppl. Fl. lapp._ (Oslo): 105 (1826)  
_= Parmelia spongigosa_ (Ach.) [PERSON], _Syst. veg._, Edn 16 4(1): 277 (1827)  
_= Peltigera saccata_ var. _limbata_ (Sommerf.) Fr., _Summa veg. Scand._, Scetio Prior (Stockholm): 104 (1845)  
_= Solorina saccata & limbata_ (Sommerf.) Schaer., _Enum. critic. lich. europ._ (Bern): 23 (1850)  
_= Peltigera limbata_ (Sommerf.) Nyl., _Not. Sallsk. Fauna et Fl. Fenn. Forh._ 2: 217 (1852)  
_= Solorina saccata_ f. _limbata_ (Sommerf.) Nyl., _Mem. Soc. Imp. Sci. Nat. Cherbourg_ 3: 173 (1855)  
_= Solorina saccata_ var. _s spongigosa_ (Ach.) Nyl., _Synt. meth. lich._ (Parisiis) 1(2): 331 (1860)  
_= Solorina limbata_ (Sommerf.) Mudd, _Man. Brit. Lich._: 85 (1861)  
_= Solorina spongigosa_ (Sm.) Anzi, _Comm. Soc. critto. Ital._ 1(fasc. 3): 136 (1862)  
_= Solorinina sinensis_ var. _limbata_ (Sommerf.) Nyl., _in Hue_, _Noux. Arch. Mus. Hist. Nat._, Paris, 3 ser. 2: 312 (1890)  
_= Solorina spongigosa_ (Sm.) Anzi, _Magy. Bot. Lapok_, 29: 29 (1930)  
Fungal Names: FN 572276  
Figure 10: _Pseudosolorina sinensis_ (**A**,**C**: [PERSON] et al.