28 Journal of Mycology [Vol. 9 
Leptonia seticeps Atkinson n. sp., on rotten logs or very rotten 
wood. Jour. Mycol. 8: n6. Oct. 1902. 
Leptomnia multifida, host to Aecidium leptotaeniae Lindroth n. 
sp. Meddel. fr. Stockholms Hogskolas botaniska Institut. 
Bd. IV. 1901. 
Leptosph^ria astericola E. & E. n. sp., on dead stems of Aster 
multiflora. Jour. Mycol. 8:17. May 1902. 
Liatris spicata, host to Septoria liatridis Ell. & Davis n. sp. 
Jour. Mycol. 8:13. May 1902. 
Lichens — Alectoria, Evernia and Ramalina, Illustrated. 
Carolyn W. Harris. Bryologist, 4:36-9. 1 pi. April 1901. 
Lichens — Citraria, Illustrated. Mrs. Carolyn W. Harris. 
Bryologist, 4:41-5. 1 pi. July 1901. 
Lichens, Ecological Distribution, an incentive, see Ecologic Dis¬ 
tribution. . . . 
Lichens of Northwestern Minnesota, VI. Contributions to a 
Knowledge of the Lichens of Minnesota. [Distribution and 
habitat.] Bruce Fink. Minn. Bot. Studies, 2:657-709. 
15 May 1902. 
Lichens, Notes on New Species of, collected by the Harriman 
Expedition. [Abstr. paper before the Soc. PI. Morph, and 
Phys.] Clara E. Cummings. Science, N. S. 15:408. 14 
March 1902. 
Lichens [and Hepaticae. Annotated List.] John Macoun. 
Catalogue of Canadian Plants. Part VII :49-i8o. 1902. 
Lichens. [List, 6 species, in Flora of New Providence and 
Audros: Bahama Islands.] Alice R. Northrop. Mem. 
Torr. Bot. Club, 12:15. 10 Dec. 1902. 
Lichens — Parmelia, Illustrated. Carolyn W. Harris. Bry¬ 
ologist, 4:57-61. 1 pi. Oct. 1901. 
Lichens — Physcia. [Eleven species, illustrated.] Carolyn W. 
Harris. Bryologist, 5:21-4. 1 pi. March 1902. 
Lichens — Theloschistes — Pyxine, Illustrated. Carolyn W. 
Harris. Bryologist, 5:59~62. July 1902. 
Lichens — Umbilicaria, Illustrated. Carolyn W. Harris. Bry¬ 
ologist, 5:89~92. 1 pi. Nov. 1902. 
Lichens on Rocks [Porphyry.] Samuel T. Hensel. Science, 
N. S. 16:593-4. 10 Oct. 1902. 
Limacium, Key to Species, see Hygrophoreae, Key. . . . 
