168 IOWA ACADEMY OF SCIENCES. 



27. — . Geschichte liber Literatur der Lich- 



enologie von den iiltesten Zeiten bis 1870. Miinchen 1867-1872. 

 Contains numerous references to American writings and 

 writers. 



28. . Lichenes Mexicani quas legit 1875, 



R. Rabenhorst Hedwigia 15: 148-149. O 1876. Lists twenty- 

 eight lichens, Verrucaria f etivica Krphb , described as new. 



29. Michaux, A. Flora Boreali — Americana, sistens charac- 

 ters plantarum, quas in America septentrionali coUegit et 

 detexit, Paris, 1803. Mentions twenty-one species from Caro- 

 lina and Canada, seven new. 



30. Meyer, E. De plantis Labradoricis libritres, Lipsise, 

 1830. Mentions seventeen lichens. 



31. Mtlller, J. Lichenogische Beitrage, Lichenes aus Texas, 

 Flora 60: 77-80. 11 F 1877. Lists 41 species and varieties and 

 describes five of them as new. 



32. . Lichenogische Beitrage, Flora 61: 



481-492. 1 N 1878; 64: 225-236. 21 My issi; 65:291-306,316-322. 

 1 Jl, 11 Jl 1882; 66: 286-290, 317-322, 344-354. 21 Je, 11 Jl, 1 

 Au 1883; 67: 268-274, 283-289. 11 My, 21, My 1884; 68: 324- 

 326, 331-342. 1 Je, 11 Je 1885; 69: 286-290. 21 Je 1886; 70: 

 56-64, 336-338. 1 F, 21 Jl 1887. 



A series of articles of various titles, of which the above 

 numbers at least give names or descriptions of North America 

 lichens. Some are described as new. 



'^3. . Lichens Oregonensis in Rocky Moun- 

 tains, Washington Territory, insula Vancouver et territories 

 vicinis Americas occidentalis a cl; Dr. Julio Roell anno praeter 

 lapso lecti et a cl; Dr. Dieck communicata, quos determinavit. 

 Flora 72: 362-366. 20 Jl 1889. Lists eighty-one species and 

 gives a description of a new variety. 



34. . Lichenes Exotice. Hedwigia 34: 



139-145. Je 1895. Some mention of North American lichens. 



35. Nylander, W. Lichenes collecti in Mexico a Fr. 

 Mtiller. Flora 41: 377-379. 28 Je 1858. Determination of 

 110 Mexican species. 



36. . Expositio Pyrenocarpeorum. Ande- 



cavis, 1858. North American species mentioned. 



37. . Synopsis MethodicaLychenum; Paris, 



1858-1860. Contains numerous references to North American 

 lichens. 



