PAGE 



Aralia spinosa 



Hypoderma commune 40 



Arctium lappae 



Phyllosticta lappae 26 



Arctostaphylos uva-ursi 



Phacidium vaccinii 48 



Arenaria gramlandica 



Ustilago yiolacea ftO 



Arisasma triphyllum 



Uromyces caladii 54 



Asclepias sp. indet. 



Uromyces asclepiadis 54 



Asparagus offieinalis 



Pleospora asparagi 35 



Puccinia asparagi 62 



Aster lindleyanus 



Coleosporium solidaginis. 51 



Aster macrophyllus 



Erysiphe cichoracearum 30 



Puccinia asteris 52 



Aster novi-belgii 



Entyloma compositarum 50 



Aster sp. indet. 



Aecidiuin asterurn 30 



Puccinia asteris 52 



Avena sativa 

 Helminthosporium inconspicuum 



brittanicum.. 23 



Ustilago avenas 50 



Berberis vulgaris 



Cucurbitaria berbei'idis 32 



Puccinia graminis 52 



Betula lutea 



Foines salicinus 62 



Guepinia spathularia 71 



Hypoxylon multiforme 84 



Rosellinia desmazierii 36 



Betula papyrifera 



Poiystictus pergamenus 64 



Stereum pulveruleutura 70 



Betula populifolia 



Bulgaria rufa 47 



Calosphaeria ciliatula 32 



Diatry pella betulina 33 



Discosia artocreas 28 



Dothidella betulina 29 



Libertrlla betulina 29 



Melanconium bicolor 29 



Nsemospora crocea 30 



Polyporus betulinus 63 



Poiystictus aureo-nitens 64 



Stereum ochraeeo-flavum 70 



Venturiaditricha 37 



Betula sp. indet. 



Anlhosyoma microsporum 32 



Bombardia fasiculata 32 



Coceomycesdentatus 48 



Daedalea unicolor 62 



Dermatea f usispora 47 



Diatry pe stigma 33 



Diatry pella verruciformis 33 



Hypoxylon morsei 34 



Polyporus brumalis 63 



Polyporus elegans 63 



Poria ferruginosa 60 



Stereum hirsutum 70 



Trametes suaveolens 65 



Bid ens cernua 



Sphaerotheca castagnei 31 



Brassica campestris 



Periola tomentosa 24 



Brassica oleracea 



Alternaria brasnicfe 21 



Brasfica sp. indet. 



stlbuni vulgare 24 



CalamHgrostis canadensis 



Claviceps purpurea . 38 



PAGE 



Capsella bursa-pastaris 



Cystopus candidus 18 



Carex brpmoides 

 Carex crinita 



Puccinia caricis 52 



Cai'ex pedunculata 



Phyllachora caricis 3d 



Ustilago caricis 50 



Carex retrorsa 

 Carex rostrata 



Puccinia caricis .. 52 



Carya sp. indet. 



Phyllosticta caryae 26 



Cassandra calyculata 



Uretto cassantlrae , 54 



Venturia pulchella 37 



Celastrus scandens 



A sterina celastri 30 



Phyllactinia suff ulta 31 



Chelone glabra 



Septoria wilsoni 28 



Chenopodium album 



Leptospbseria doliolum 35 



Chrysanthemum sinensis 



Oidiurn chrysanthemi 20 



Circaea alpina 

 Circaea lutetiana 



Puccinia circaeae 52 



Clavaria spinulosa 



Helminthosphaeria clavariarum. . 34 

 Clematis virginiana 



Aecidium clematidis 50 



Cercospsra squalida 22 



Erysiphe communis 31 



Cnicus arvensis 



Puccinia suaveolens 53 



Coptis trifolia 



Shpteria coptis 36 



Vermicularia coptina 28 



Cornus alternifolia 



Fracchiaea callista 33 



Myxosporiuui nitidum 30 



Cornus canadensis 



Glomerulariacorni 20 



Puccinia poryhyrogenita 53 



Cornus stolonifera 



Phyllactinia suff ulta 31 



Cornus sp. indet. 



Myxosporium nitidum 30 



Corylus ro-trata 



Gnomouia coryli 34 



Phyllactinia suff ulta 31 



Crataegus nmcrantha 



Roestelia aurantiaca 54 



Crntaegus sp. indet. 



Roestelia lacerata 54 



Dalibanla re pens 



Septoria dalibardae 27 



Danthonia spicata 



Phylhichora graminis . 39 



Delphinium elatum 



Erysiphe communis 31 



Dentaria diphylla 



Cystopus candidly 18 



Diantlius catyophyllus 



Uromyces caryophyllinus 54 



Diapensin lapponiea 



Sphaerelhi pachj'asca 36 



Diei villa triflda 



Cercospora diervillae 22 



Septoria diervillicola 27 



Kamularia liervillae 21 



Dirca palustris 



Aecidium hydnoideum 71 



Flrigeron sp. indet. 



Septoria erigenmtea 27 



Fagiis fen uginea 



Cliiud()[)us nidulans 55 



82 



