Lichenes Ceylonenses. 19 



3. Chiodecton splmraJe Acli., Nyl. Gran. p. 110, Guin. p. 33. Apo- 

 thecia nigra punctiformia in stromatibus convcxis aut depressis aggregata. 

 Sporse acicularcs long. 0.023, crass. 0.002 millim. (non rite evolutse). — 

 Peradenia, corticola. 



4. Sligmatidium prœpaUens Nyl. Jcqjon. p. 84. Thallns albidus tenuis- 

 simus, Ca Cl benc crythrinosns; apotliccia pallida tcneila vermiculiformia; 

 sporœ fusiformes indistincte 5-septata3, long. 0.023, crass. 0.003 millim. lodo 

 gelatina hymcnialis et sporse fulvo-rubesccntes. — Point de Galle, corticola. 

 Socinm Arthoniœ dispersnlœ. Etiam lignicola. 



Apothecia breviora quam in saxicola japonica et non discissa. 



5. Arthonia cinnaharina Wallr., Nyl. Arth. p. 88, Prodr. p. 163, var. 

 orbiccUa Nyl. Apothecia albo-pruinosa cinnabarina niarginata rotundata (latit. 

 circiter 0.25 millim.). Sporœ 4-septatae, long. 0.023 — 24, crass. 0.009 mil- 

 lim., (lemnm fuscae. lodo gelatina hymenialis fulvo-rubesccns. — Point de 

 Galle, corticola. 



6. Ar/honia stenographella Nyl. N. Gran. 2, p. 99, Japon, p. 85. Sporse 

 3-septatae, long. 0.012 — 14, crass. 0.0045. lodo gelatina hymenialis fulvo- 

 rubescens (prœcedente cœrnlescentia quadam). — Peradenia, super ramulos. 



7. Arthonia rubiginella Nyl. Thallus cinerascens tenuissimus indetermi- 

 natus; apothecia rubiginosa vel uigricanti-rubiginosa, tenuiter astroideo-divisa; 

 sporae oviformes 2-septatfe, long. 0.020 — -23, crass. 0.008 — 0.010 millim. 

 lodo gelatina hymenialis cœrulescens, dein mox vinose rubens. — Point de 

 Galle, corticola. 



8. Arthonia opegraphina Ach. (sub astroidea Sgn. p. 6). Apothecia 

 nigricantia substellari-divisa; sporœ 3 — 4-septatfe, long. 0.014 — 21, crass. 

 0.005 — 7 millim. lodo gelatina hymenialis cum thecis vinose rubcscens. — 

 Peradenia, corticola. 



Vix distinguenda a stenographella. Hue pertinet A. stellaris Kmpiib. (an 

 Edeltannen bei Marquartstein) Lieh. Bag. p. 296, In nota datur defiuitio A. 

 albellœ Zw. L. 358, Lieh. Heidelb. p. 43. 



9. Arthonia disperstda Nyl. in Flora 1876, p. 285, Will. Arth. p. 30, 

 A. Austini Will. Arth. p. 3. Thallus albus tenuissimus Isevis maculiformis; 

 apothecia nigra graciliter substellata aut simplicia irregulariter lanceolata sub- 

 flexa; sporje l-septatse, long. 0.009 — 0.010, crass. 0.0035 millim. lodo ge- 

 latina hymenialis vinose rubens. — Point de Galle, corticola. 



* A. simplieata Nyl. Diifert apotheciis subrotundatis vel oblongis simpli- 

 cibus. — Socia A. dispersulœ substellatse, 



N:o 10, 



