. A guide to the study of lichens. O 55 Jo SPORES. PLATE VIII. Generic Spore-types (con.). 37. Lecidea. 38. Lecothecium. 39. Leptogium. 40. Lichina. 41. Lopadium. 42. Mallotiuin. 43. Megalospora. 44. Mycoporum. 45. Nephromium. 46. Omphalaria. 47. Opegrapha. 48. Pannaria. GUIDE TO LfrHENS. Flatc Vin. S FOXES. PLATE IX. Generic Spore-types (con.)= 49. Parmelia. 50. Peltigera. 51. Pilophoron. 54. Placodium. 55. Polychidiuni. 56. ! Psoroma. 58. Pyrenula. 59. Pyxine. 60. Ramalina. GUIDE TO LICHENS Schneider. Plate rX

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