IOWA ACADEMY OF SCIENCES. 169 



38. . Observationes paucse circa Scripta 



lichenologica recentissima. Flora 43: pp. 41 44. 21 Ja 1860. 

 Comments on Tuckerman's "Supplement to an Enumeration 

 of North American Lichens. " 



39. . Conspectus Squamariarum. Flora 44: 



pp. 716-718. 7 D 1861. Mentions North American species. 



40. . Enumeratio synoptica Stictarum. 



Flora 48: 296-299. 23 Je 1865. Mentions North American 

 species. 



41 . . In Cryptogama3 Mexicanas nuper a collec- 



toribus Expeditionis scientif. allatse aut in Museo. Paris 

 depositee. A volume of 166 pages. Paris, 1872. Lichens by 

 Ny lander. 



42. . Arthonise novae Americanae, borealis. 



Flora 68: 311-313. 1 Je 1885. Describes six species. 



43. . Enumeratio Lichenum, freti Behringii. 



Bull. Soc. Linn. Normandie: (4*^ Ser.) 189-286, 1887. Mentions 

 some American species and names A/ectoria cefrariza Nyl. 



44. Petiver, Joe. Pterographia Americana, icones con- 

 tinens Filicum nee non Muscos, Lichenes, Fungos, etc. Lon- 

 don, 1712. Refers to a single lichen, Stkta damax-ornis (Auct.). 



45. Plumier, Carol. Filicetum Americanum senfilicum, etc. 

 in America nascent. Paris, 1703. Also mentions SUcta 

 damcecoruis (Auct.). 



46. Porcher, F. P. The Medicinal, Poisonous and Dietetic 

 Properties of the Cryptogamic Plants of the United States. 

 Trans. American Medical association 7: 167-284. 1854; pp. 179- 

 192, give notes on fifty-one lichens, with uses to which they 

 have been put, and methods of preparing them for the various 

 uses. 



47. Pound, R. The Algae, Fungi and Lichens. Am. Nat. 

 23: 178. F 1889. 



48. Rau, E. A. A Lichen new to the United States. 

 Jour, of Mycology 4: 20. F 1888. A note on Trypethelium 

 heterochrous. 



49. Sargent, F. L., in How to collect certain Plants. Bot. 

 Gaz. 11: 142. Je 1886. By several writers; Mr. Sargent treat- 

 ing lichens. 



50. , Guide to the Recognition of the Princi- 

 pal Orders of Cryptogams and the commoner and more easily 

 distinguished New England Genera, with Glossary. Pamphlet, 



