INDEX 



Achillea ptaimica, 23 

 Aecidium hydnoideum, 34 

 Agaricus campestris, 9 

 Agrostis borealis, 34 

 Amanita ovoidea, 23, 51 



plates, 126 

 Anellaria separata, 23 

 Anomalae, 53, 71, 113 

 Aposphaeria fibriseda, 23 

 Artemisia carruthii, 23 



dracunculoides, 23 



glauca, 23 

 Arthonia quintaria, 23 



radiata, 23 

 Asteromella asteris, 38 



Betula alba, 24 

 Bolbitius vitellinus, 24 

 Boletinus cavipes, 38 

 Boletus retipes, 24 



scaber, 34 



subaureus rubroscriptus, 34 



Calosphaeria myricae, 24 

 Calvatia rubroflava, 24 

 Chestnut bark disease, 7 

 Chrysothamnus pinifolius, 24 

 Cladochytrium alismatis, 24 

 Cladonia cristatella vestita, 34 

 Clavaria grandis, 24 



obtusissima, 39 

 minor, 34 



subcaespitosa, 39 



vermicularis, 24 

 Clitopilus leptonia, 39 



subvilis, 40 



vilis, 40 

 Coccineae, 65, 99 

 Collema crispum, 24 

 Collybia murina, 25 

 Coronopus procumbens, 25 

 Coryneum effusum, 40 



Crataegus, 6, 9, 53-124 

 acclivis, 65, 99 

 acerba, 61, 92 

 acuminata, 62, 94 

 admiranda, 74, 121 

 affinis, 72, 114 

 ambrosia, 73, 119 

 amoena, 56, 82 

 anomala, 67, 105 

 arcana, 56, 79 

 arduennae, 53, 76 

 aridula, 58, 88 

 aristata, 56, 83 

 ascendens, 62, 94 

 asperifolia, 72, 116 

 balkwillii, 73, 119 

 barbara, 55, 78 

 barryana, 61, 93 

 beata, 56, 80 

 beckiana, 75, 123 

 beckwithae, 91 

 bella, 63, 96 

 benigna, 65, 98 

 bissellii, 69, 108 

 boothiana, 62, 94 

 brachyloba, 71, 113 

 brevipes, 59, 88 

 bronxensis, 58, 87 

 brownietta, 55, 78 

 caesariata, 69, 108 

 calvinii, 74, 120 

 casta, 57, 86 

 celsa, 54, 76 

 cerasina, 54, 76 

 champlainensis, 67, 104 

 chateaugayensis, 71, 113 

 claytoniana, 64, 98 

 clintoniana, 57, 87 

 cognata, 57, 86 

 colorata, 61, 92 

 comans, 73, 118 

 compta, 60, 92 



133 



