No. VII.] 



LIST OF THE PLANTS. 



761 



587. Parmelia caperata, b. cylisphora : Ach. Syn. p. 196. Muhl. Cat. (W.) 



588. P. herbacea: Ach. Syn. p. 198. Lichen laete virens : Eng. Bot. t. 294. (W.) 



589. P.olivacea: Ach. Syn. 200. L.olivaceus. Eng. Bot. t. 2180. Muhl.Cat. (W.B.) 



590. P. saxatilis : Ach. Syn. p. 203. Eng. Bot. t. 603. Muhl. Cat. p. 105. (W. B.) 



591. P. fahlunensis : Ach. Syn. p. 204. Eng. Bot. t. 653. (B.) 



592. P. stygia : Ach. Syn. p. 205. Lichen stygius. Eng. Bot. t. 2048. (B.) 



593. P. ambigua: Ach. Syn. p. 208. (B.) 



594. P. conspersa: Ach. Syn. p. 209. Muhl. Cat. Eng. Bot. t. 2097. (W. B.) 



595. P. muscigena, /3. lenta: Ach. Syn. p. 213. (B.) 



596. P. pulverulenta : Ach. Syn. p. 214. Eng. Bot. t. 2063. Muhl. Cat. (W.) 



597. P. aipolia: Ach. Syn. p. 215. Muhl. Cat. (W.) 



598. P. stellaris ; Ach. Syn. p. 216. Muhl. Cat. (W.) 



599. P. cycloselis: Ach. Syn. p. 216. (W. B.) 



600. P. physodes : Ach. Syn. p. 218. Muhl. Cat. (W. B.) 

 y. platyphylla: Ach. Syn. p. 218. absque scutellis. (B.) 



601. Borrera ciliaris : Ach. Syn. p. 221. Muhl. Cat. (W. B.) 



602. B. tenella: Ach. Syn. p. 221. (W.) 



603. Cetraria juniperina : Ach. Syn. p. 226. Muhl. Cat. p. 106. (B.) 

 /3. Pinastri: Ach. Syn. ip. 226. (B.W.) 



604. C. sepincola: Ach. Syn. p. 226. (W. B.) 



605. C. nivalis: Ach. Syn. p. 228. (B.) 



606. C. cucullata: Ach. Syn. p. 228. (B.) 



607. C. islandica: Ach. Syn. p. 229. Muhl. Cat. -p. 106. (B.) 



608. C. Richardsonii: (Hooker, MS.) thallo brunneo omnino libero : laciniis dicho- 

 tomis linearibus, apotheciis marginalibus flavescenti-brunneis. (B.) 



Thallus coriaceus prostratus, angustifolius, divaricato-bi-pinnatifidus aut dichotome sinuato-bipartitus, 

 supra convexus, rubescenti-brunneus nitidus, subtus canaliculars opacus pallidior fere canescens, sed maculis 

 magnis irregularibu s ejusdem substantia? colorisque ac pagina superior interspersus. Lacinicn omnes prater 

 ultimas ejusdem latitudinis sunt et stellatim extrorsum expansse : ultimse augustiores plerumqne divaricato- 

 furcatse sunt aut tantum emarginatae. Margines thalli integerrimi aut sparsiter granuluto-dentati etiam in 

 sicco revoluti, in humido ita connivent ut lacinias tubulosas reddunt ; Exsiccatione iterum evolouutur. 

 Apothecia in margine thalli sparsa, in initio concava margine inflexo mox ampla sub-pedicellata flexuosa 

 margineque irregulariter reflexo ; supra lamina proligera, flavescenti-brunnea, nitida, margine thallode earn 

 non excedente sub-cincta subtus e pagina thalli superiora formata. Ambitus apotheciorum granulatus 

 repandus aut etiam fissus semper valde irregularis et modo Cetrariarum sub-liberus. Thallus in sicco 

 fragilis vix tamen rigidus, madefactus pallet totus et ejus apices interdum olivaceo-virides fiunt. Sunt 

 quoque specimina quorum apices colorem viridem etiam in sicco conservent. In nuda terra late pulvinatim 

 expansus est sed nulla radice humo affixus. Rarius fructificat. 



Hub. On the Barren Grounds generally in Rein-deer tracks. It was not found to the southward of Great 

 Slave Lake. 



609. Peltidea scutata: Ach. Syn. p. 237. Eng. Bot. t. 1834. Muhl.Cat. (W.) 



610. P. aphthosa: Ach. Syn. p. 238. Muhl. Cat. (W. B.) 



5 E 



