SUBJECT INDEX 



Chlorella, log, 140, 149 

 Clilorococcuin, 109, 140, 149, 150 



— humicoliiin, 140, 150 

 Churchill, Canada, 141, 142 

 Circulation of the atmosphere, 29 



— patterns indoors, 157, Fig. 23 

 Cladonia, 210 



— podetia as wind cups, 35 

 Cladosporium, 35, loi, 1 14-16, 118-23, 128, 



129, 134-5, 137. I3Q, 142, 147, 151-2, 159, 



196, 200, 208 

 Claviceps purpurea^ 208 

 Clouds, atmospheric, effect on air-spora, 136, 



i54> 192, 193, 197 



— ot micro-organisms, 20, 45 

 Coccidioidomycosis, 200 

 Coefficients of deposition, p, Vg, 76-80 



— of diffusion, 49 

 Collection errors in sampling, 96 

 Colletotrichum lini, 37 

 Collybia maculata, 210 

 Compositae, 43, 117 



Composition of the air-spora, 108, 195-6 



Concentration, measurement of, 58 



Condensation nuclei, 148 



Conical-funnel samplers, 92 



Conifer pollen in air, 1^0; sec also genera and 



species involved 

 Conifuge, 98 

 Coniophora, 116, 120 

 Coniothyrium, 137 

 Continuous sources, 47, 51 

 Convection in atmosphere, 18, 21, 23, 27-29, 



33,34, 134, 138, 147, 154, 156, 157, 161, 195 

 Convective layer. Fig. 3, 27, 138 

 Coprinus atravientariiis, 210 

 — ■ coma t us, 17 



— variegatus, 202 



— plicatilis, 17 

 Cordyceps, 18, 19 

 Cortaderia, poUination of, 42 

 Cortinariiis elatior, 210 



Corylus, 15, 16, 43, 94, 117, 127, 212 



Corynebacterium ( ?), 140 



Crepidotus mollis, 210 



Cronartium rihicola, 191, 192 



Crowd disease, 183 



Cruciferae, 127 



Cunninghamella, 34, 35, 142 



Cupressus, 41 



Ciirvularia, 119, 128 



Cyanophyceae, 184 



Cyclone dust collectors, 98 



Cylinders, efficiency of impaction on, 62-64 



Cynosiinis, pollination of, 42 



Cyperaceae, 41, 127 



Cystococciis pseiidostichococcus, 150 



Dactylis, 15, 16, 42 



Diihlinia concentiica, 208 



Death of cells in air, 191-3 



— ■ rates, 191 



Deflation, 34, 35 



Deinatiiim, 137 



Denmark, 137 



Densities of pollen and spores, 15 



Deposition coefficients, p, Vg, 76-80 



■ — oi Lycopodiitm spores. Fig. 13, 68, Fig. 14 



— to ground, 170-2 



— gradients, 162-79 



— of spores on leaves, 74, 75 



— on cyhnders, 62-64 



— processes, 58, 81-89 

 Deschampsia, pollination of, 42 

 Desiccation and viability, 191, 192 

 Desmids, no 



Detection thresholds in sampling, 106 



Diatoms, no 



Diatrype stigma, 208 



Dicoccum, 120 



Die-away of concentration, 155, 156, Fig. 22 



Diffusion models, 47, Fig. 6 



Diplodia, 119 



Discomycete type of spore hbcration, 37 



Discontinuous spread of plant diseases, 181 



Dispersal gradients, 45-57, 162-80 



Dispersion of spores in air, 45-57, 167-76 



Distribution of microbes by air, 13 



Diurnal periodicity, 10, 112, Fig. 19, 1 16-19, 



Figs. 20, 21 

 Dothidella iilei, 199 

 Douglas-fir, 180 

 Drop excretion mechanism, 70 

 Droplet infection, 158 



— nuclei, 158 

 Dryopteris, 210 



— spores over Atlantic Ocean, 127 

 Dry-rot fungus, 158 



Dundee, 159 



Duplex, radial jet sampler, 99 



Dust-devils, 25, 33 



• — from sputum, 158 



— horizon, 27 



— spores in, 4 



— trapped in laminar air layer, 24 

 Dutch elm disease, 166 

 Dwelhng houses, air-spora of, 159 



Eco-climate of boundary layer air, 25-27 

 Eddy diffusion, 47-51, 167-76, Figs. 25, 



26, 27 

 Edge drift, 69, 70 

 ■ — effects in deposition, 68-73 

 Efficiency of trapping, 59, 95, 96 

 Ejection distances of f'ungus spores, 56 

 Electrical charges on spores, 84, 85 

 Electrostatic deposition of spores, 84, 85, 104 



— precipitator, 104 



Elevation of source, effect of, 171-6 



EHmination, 199 



EUesmere Island, 129 



Elymus, pollination of, 42 



Empirical formulation of gradients, 46, 166, 



167 

 Enclosed spaces, the air-spora of, 155-61 

 Endothia parasitica, 181, 200 

 Entoloma, 210 



Entomophilous flowering plants, 39, 40, 42 

 Entomopbthora, 116, 120, 123 



— muscae, 37, 208 



Epicocctim, 116, 119, 120, 123, 128, 137 

 Epichloe, 18 



239 



