893 



f. argentata (Ach.). Syn. L. subf. t. argen- 

 tata Ach. Univ. p. 393, id. Syn. p. 157, Nyl. 

 Scand. p. 160, L. subf. v. glabrata Ach. 11. cc. 

 Schaer. En. p. 74 (non Dicks.), L. subf. v. glabra 

 Nyl. Läpp. Orient, p. 132, Parmelia coeruleata Fr. 

 X. -2J. p. 140, L. subfusca v. baeomycoides Mass. 

 Eic. p. 6, L. subf. V. campestris Schaer. En. p. 75, 

 i. ««&/". T. expansa ibid., L. subf. vv. Imcopis et 

 Zmnea Aut. *). Exs. Fr, L. S. 250 b, Anzi It. sup. 

 185. 191. 192, id. Venet. 36. 40, Erb. critt. It. 

 934, Unio it. (1866) 1, Mandon Madeir. 3. 54, 

 Heppi^wr. 63. 381, Rabh. Eur. 374. 691. 



Thal 1 u s tenuis sublaevigatus vel leviter 

 rugoso-inaequalis (in saxicolis saepius granuloso- 

 vel areolato- verrucosus), albidus. Apothecia 

 plana vel convexiuscula, lat. 1 — 1,5 min., fusca 

 vel fusco - pallescentia , margine thallino integro 

 cincta. Hymenium superne luteo-fuscum; para- 

 physes subliberae , raro coalitae. Sporae 10 

 — 16 mik. longae, 6 — 9 mik. crassae. Gel. 

 hym. iodo coerulescens. 



In cortice arborum et ad saxa Europ., 

 Americ, ins. Madeir. 



Obs. Var. campestris Schaer. formas saxi- 

 colas ihallo granuloso , vv. leucopis et lainea Aut. 

 formas saxicolas thallo aeqnabili rimuloso- areolato 

 amplectuntnr. 



F. intumescens (Rebent.). Syo. Parmelia intum. 

 Wallr., Lecanora intumescens ^aheuh. Hepp, Körb. 

 Arn., Kremplh. etc. L. subf. v. intumescens Fw. 

 L. subf. cateilea Schaer. En. p. 74 p. p. L. catei- 

 lea Mass. Ric. p. 9 , L.intum, v. glauco-rvfa Mart. 

 Exs. Anzi Lang. 102, Arn. 273, Hepp £'wr. 614, 

 Erb. critt. It. 1071. 



Thallus sublimitatus tenuissimus laevigatus 

 tandemrimoso-areolatus albidus. Apothecia con- 

 vexiuscula fusca vel nigro-fusca interdum livido- 

 pruinosa margine crasso niveo inflexo nonnun- 

 quam crenulato cincta. Hymenium superne luteo- 

 fuscum ; paraphyses coalitae incrassatae. Sporae 

 11 — 18 mik. longae, 6 — 8 mik. crassae. Gel. 

 hym. iodo coerulescens. 



In cortice arborum Europae. 



Obs. I. Nylander (in lit.) hanc formam anoma- 

 lam censet. Argentatam certe arctissime tangit et 

 fortasse marginis apotheciorum anamorphosi ex ea 

 originem ducit. 



Obs. II. Martins formis quibusdam livido-pruinosis. 

 nomen glauco-rufam dedit. 



*) L. leucopis nee non L. lainea hb. Ach. mo- 

 nente Nylander res valde inter se discrepantes am- 

 plectuntnr. Cf. Nyl. Scand. p. 235. 



894 



P. exuta Nyl. in hb. Arn. Syn. Biatora ano- 

 mala Arn. Flora 1868. p. 246. 



Thallus fere effusus tenuis (crass. 0.05 

 mm.) leprosus, cinerascente-brunneus. Apo- 

 thecia sparsa, juventute modo margine thallino 

 albido cincta, mox biatorina concava vel plana 

 fusca vel nigro-fusca, 0,5 — 0,6 mm. lata. Hy- 

 menium superne luteo-fuscum; paraphyses cras- 

 sae, superne coalitae. Sporae 16 — 20 mik. 

 longae, 6 — 8 mik. crassae. Gel. hym. iodo 

 coerulescens dein sordide vinose rubens. 



Prope San Bartolomeo (in provincia Algarve 

 Lusitaniae ad saxa arenacea) leg. Herm. Comes 

 de Sohns -Laubach. 



V. coilocarpa Ach. Syn. Lecanora subfusca v. 

 coilocarpa Ach. Univ. p. 393, id. Syn. p. 157, 

 Nyl. Scand. p. 160, id. Läpp. Orient. 132, id. 

 Addit. Nov. Granat, p. 543. L. subf. v. pinastri 

 Schaer. Spie. p. 390, id. En. p. 74, Hepp, Körb., 

 Anzi etc. Exs. Schaer. Ifelv. 310, Hepp Eur. 

 184, Anzi Lang. 105, Lindig Nov. Granat. 160, 

 Rbh. Eur. 157, Schweiz. 467(?), Leight. 52, 

 Mudd 111. 



Thallus sublimitatus vel limitatus tenuis 

 inaequalis vel granulato-rugosus (in saxicolis 

 crassior verrucoso-diffractus) albidus. Apothe- 

 cia parva ad 1 mm. lata, juniora concava, fusco- 

 nigra vel fere nigra margine thallino integro vel 

 subintegro cincta. Hymenium superne luteo- 

 fuscum ; paraphyses subliberae graciles apice 

 fuscescentes. Sporae 12 — 18 mik. longae, 6 

 — 10 mik. crassae. Gel. hym. iodo coerulescens 

 dein violaceo-tincta. 



Ad cortices, ligna et saxa Europae etAme- 



ricae. 



Obs. Hoc loc etiam Lecanora pulicaris Ach. 

 Syn. p. 386 commemoranda est, quam non vidi. Ny- 

 lander {Scand. p. 161) eam statum lignicolum ecru- 

 staceum vel subecrustaceum f. coilocarpae esse censet. 



F. gangalea (Ach.). Syn. Lecanora gangalea 

 et var. rudis Ach. Syn. p. 152, L. subf. f. gan- 

 galea Nyl. Scand. p. 161, Exs. Mandon Ma- 

 deir. 55. 



Thallus determinatus ambitu radiosus cras- 

 sior glaber rimosus vel rimoso-areolatus albo - 

 cinerascens. Apothecia crebra sessilia primum 

 concava tandem convexa nigra margine integro 

 vel subcrenulato cincta. Hymenium superne 

 fuscum ; paraphyses subconglutinatae. Sporae 

 12 — 18 mik. longae, 6 — 8 mikr. crassae. Gel. 

 hym. iodo coerulescens dein sordide obscurata. 



Ad saxa Madeirae, Jutlandiae borealis (Deich- 

 52* 



