897 



ms 



flexuoso cinctis. Hymenium superne liiteo-fuscum ; 

 paraphyses subconglutinatae. Sporae long. 14 

 — 23 mik., crass. 8 — 11 mik. Gel. hym. iodo 

 coerulescens dein sordide obscurata. 



Ad muscos vetustos et alias plantas deraor- 

 tuas Europae, Araeric, ins. Spitsberg. 



Var. subcreiiulata Nyl. Addit. Nov. Granat. 

 p. 542. Exs. Lindig 154 (ubi monente Nyl. I.e. 

 perperara „argentata Ach." dicitur). 



Thal 1 US nigro - limitatus tenuis minute gra- 

 nulosus albus opacus ambitu haud raro tenniter 

 byssinus. Apothecia conferta subrubricosa vel 

 rubricoso - fusca lat. 0.6 — 1.2 mm., margine thal- 

 lino crenulato (in saxicolis subintegro) cincta. 

 Hymenium superne dilute fusco- luteum; para- 

 physes graciles apice non discretae. Sporae 

 long. 15 — 20 mik., crass. 6 — 9 mik. Gel. hym. 

 iodo coerulescens, deinde thecae nonnihil vio- 

 lacee tinctae. 



Ad saxa et cortices in INova Granata; ad 

 cortices in iVova Caledonia. 



r. subgranulata Nyl. Syn. Nyl. Nov. Caled. 

 p. 26, id. Addit. Nov. Granat, p. 542. 



Thallus saepe hypothallo nigro limitatus 

 tenuis minute granulöse -inaequalis (passim le- 

 prose solutus) albidus vel interdum flavescens. 

 Apothecia plana demum convexa lat. 0.5 — 1 

 mm., ruta , lusco-rufa vel subrubricoso - rufescen- 

 tia margine thallino crenulato cincta. Hymenium 

 superne luteo-fuscumj epithecium nonnihil gra- 

 nulosum ; paraphyses graciles , coalitae vei dis- 

 cretae clavatae. Sporae 10 — 18 mik. long., 

 5 — 9 mik. crassae. Gel. hym. iodo persisten- 

 tem coerulescens. 



Ad cortices arborum Novae Granatae et 

 Novae Caledoniae. 



Obs. 1. Subgranulatam e Nova Caledonia in 

 chlaronam transire optinie monet cl. Nyl. 



Obs. 11. In Addit. Nov. Granat, stationes «m6- 

 granulatae et coilocarpae errore typographico in- 

 versae sunt: „Hab. Bogota — coli. Liudig. p. 160."' 

 ad coilocarpam y ,,Hab. Cune — 2100 metr. (idem).'' 

 ad subgranulatam spectat. 



Obs. III. Haud parum variabiles haecce duae 

 formae esse videntur, quare cum insuper unius unum 

 alterius duo tantum specimina mihi praesto essent in 

 iis describendis plane cl. Nyl. secutus sum. 



Var. Bogotaua Nyl. Addit. Nov. Granat, p. 543. 

 Thallus tenuis granulatus pallido -albidus. 

 Apothecia conferta, parva (lat. 0,5 — 0,8 mm.), 

 convexa fusca vel fusco - rufescentia. Hymenium 

 superne Inteo - fuscum ; paraphyses apice clavatae 

 coalitae. Sporae 8 — 13 mik. long., 4 — 6 



mik. crass. Gel. hym. iodo coerulescens dein 

 nonnihil sordidesceiis. 



Ad cortices et saxa Nov. Granat. 



Var. albdla (Pers.). Syn. Liehen alhellus Fers., 

 Lecanora albella Ach. Univ. p. 369, id. &/?i. p. 168, 

 Nyl. Scand. p. 162, id. Läpp. Orient, p. 133, Par- 

 Vfielia subfusca v. albella Fr. L. E, p. 139, L.pal- 

 lida V. albella Schaer. Körb. etc. Exs. Rabh. ^wr. 

 398, Malbr. Norm. 130 p. p.. Lindig 2607, Hepp 

 Eur. 187. 



Thallus determinatus tenuis membrana- 

 ceiis laevigatus albus. Apothecia concava vel 

 plana lat. 0,5 — 1 mm. pallida vel subcarnea, 

 caesio - pruinosa vel nuda , mar«' ne thallino in- 

 tegro cincta. Hymenium superu^ luteo- fuscum; 

 epithecium granulosum ; paraphyses crassae sub- 

 liberae. Sporae 9 — 15 mik. longae, 5 -8 

 mik. crassae. Gel. hym. iodo coerulescens dein 

 vinose rubescens. 



Ad cortices raro ad saxa Europ., Americae, 

 Calif., Ins. Borbon. 



F. chlaroua Ach. Syn. Lecanora distincta v. 

 chlarona Ach. Univ. p. 379, L. subf. v. chlarona 

 id. Syn. p. 158, Nyl. Scand. p. 160, id. Syn. Nov. 

 Caled. p. 26, L. albella f. chlarona id. Addit. Nov. 

 Gi'anat. p. 543, Liehen distans Pers., Parmelia subf. 

 V. distans Ach. Meth. p. 168, Fr. L. E. p. 139. 

 Lecanora Schaer. En. p. 74, Nyl. Scand. p. 160, 

 id. Boliv. p. 378, id. Läpp. Orient. p.l32, id. Syn. 

 Nov. Caled. p. 25, Lecanora distincta Ach. Univ. 

 p. 397 , Patellaria populicola DC. , Lecanora byssi- 

 placa Fee , L. subf. v. maculiformis Erb. critt. It., 

 L. subfusca v. gkibrata Mass. exs. L. subf. v. allo- 

 pAana Körb., L. subfusca v. geographica M^ss., Hepp, 

 Körb. Exs. Erb.critt. It. 934 bis, 935, 935 bis, Anzi 

 It. sup. 190 a. b. Hepp Eur. 379, 778, Mass. It. 

 42, Mandon Madeir. 2, Liudig 165(r?)? Rabh. 

 £wr. 653, 727, 803,^06?. 704 (•?), Leight. 116, Mudd 

 113, Schweiz. 61. 



Thallus determinatus tenuis sublaevigatus 

 vel subrugosus albidus vel cinerascens. Apo- 

 thecia plana vel convexiuscula lat. 0.5 — 0.9, 

 raro 1.5 mm., margine thallino subintegro vel 

 crenulato cincta. Hymenium superne luteo-fusciim ; 

 epithecium granulis lutescentibus inspersumj pa- 

 raphyses graciles subconglutinatae. Sporae 

 long. 9 — 15 ( — 18) mik., crass. 5 — 8 mik. 

 Gel. hym. iodo coerulescens , deinde saepe the- 

 cae violacee tinctae vel violacee rubentes. 



Ad cortices , raro ad saxa Europ., Americ, 

 Calcutt., Nov. Caled. 



