758 



APPENDIX. 



[No. VII. 



529. L. atro-virens : Ach. Syn. p. 21. (W. B.) 



(3 geographica : Ach. Syn. p. 21. Lichen geographicus : Eng. Bot. t. 248. (B.) 



530. L. Oederi : Ach. Syn. p. 22. Lichen Oederi : Eng. Bot. t. 117. (B.) 



531. L. uliginosa: Ach. Syn. p. 25? Eng. Bot. t. 1466 ? (B.) 



532. L. rivulosa: Ach. Syn. p. 28. Eng. Bot. t. 1737. (B.) 



533. L. abietina : Ach. Syn. p. 30. (W.) 



534. L. vernalis : Ach. Syn. p. 36. (W.) 



535. L. decolorans /3, granulosa: Ach. Syn. p. 38. Eng. Bot. t. 1185. (W.) 



536. L. luteola : Ach. Syn. p. 41. Lichen vernalis: Eng. Bot. t. 845. (W.) 



537. L. fusco-lutea : Lichen fusco-luteus : Eng. Bot. t. 1007. Lecidea fusco- 

 lutea : Ach. Syn. p. 42 ? (B.) 



538. L. anthracina: Ach. Syn. p. 43? (W.) 



539. L. icmadophila : Ach. Syn. p. 45. Muhl. Cat. p. 105. (B. W.) 



540. L. Ehrhartiana, /3 polytropa : Ach. Syn. p. 47. Lichen polytropus : Eng. 

 Bot. t. 1264. (B.) 



541. L. lucida: Ach. Syn. p. 48. Lichen lucidus ; Eng. Bot. t. 1550. (B.) 

 /3 theyotea : Ach. Syn. p. 48. On dead wood. (B.) 



542. L. luteo-alba: Ach. Syn. p. 49. Lichen luteo-albus : Eng. Bot. t. 1426. (W.) 



543. L. Wahlenbergii : Ach. Syn. p. 50. Method. Lich. t. 2. f. 2. (B.) 



544. L. Candida: Ach. Syn. p. 50. Lichen candidus : Eng. Bot. t. 1138. (B.) 



545. L. vesicularis : Ach. Syn. p. 51. Lichen coeruleo-nigricans : Eng. Bot. 

 t. 1139. (B.) 



546. L. decipiens: Ach. Syn. p. 52. Lichen decipiens : Eng. Bot. t. 1501. (B.) 



547. Calicium tigillare : Ach. Syn. p. 55. Lecidea tigillaris : Wahl. Fl. Lapp. 

 p. 468. Eng. Bot. t. 1330. (W. B.) 



548. C. chlorellum, /3 trabinellum : Ach. Syn. p. 60. Lichen trabinellus : Eng. 

 Bot. t. 1540. (W. B.) 



549. C. debile : Eng. Bot. t. 2462. (W.) 



550. C. claviculare : Ach. Syn. p. 57. (W.) 



551. Gyrophora proboscidea, /3 arctica: Ach. Syn. p. 65. Tab. xxx. fig. 4. 

 Thallus monophyllus, umbilicatus, orbicularis, tenuis, in ambitu plerumque lacerus ; supra rugis umbilicum * 



versus majoribus reticulatus, concavus vel convexus et nisi ex rupto margine planus, semper medio umbonem 

 vel umbilicum ostendens ; subtus pedicello brevissimo centrali saxo affixus, glaber, ambitum versus levdssime 

 lacunosus, quandoque punctis depressis notatus et rarissime fibrillis quibusdam instructus. Thalli color brun- 

 nescenti-niger et aliquando quasi pulvisculo suffuso fere cinereus : subtus sordide flavescenti-brunneus interdum 

 cinerascens : utrinque opacus. In aqua totus pallet. Apothecia sessilia, orbicularia, rarius angulata, disco 

 piano vel convexiusculo, plicis concentricis pulcherrime notato et margine proprio elevato cincto. 



Expl. Iconis. a. Superf. supina. b. Superf. prona. mag. nat. c. Apothecium et portio thalli sub lente visi. 



Hah. On rocks on the Barren Grounds ; more abundant towards the Arctic Sea than the following species. 



552. G. hyperborea: Ach. Nov. Act. Stockh. xv. t. 2. f. 2. Ach. Syn. p. 66. 

 Tab. xxx. fig. 3. 



