General Index. 



345 



Gymnosporangium clavariae forme, 

 direct infection by teleuto- 

 spores ... 

 confusum, promycelial cells 



separating 

 teleutospores, thickness of 



cell wall 



Hapalophragmium 

 Hard i issues, softening... 

 Harvesting methods and rust 

 Haustoria 

 Hawthorn 



Hetianthus annuus, aecidia 

 J-J emibasidii ... 

 Hemileia 

 Hemipuccinia ... 

 Heteroecious species 

 indigenous 

 regular development 

 Heteroecism ... 

 beneficial ... 

 causing increased vigor 

 discovery ... 

 origin 



when possible 

 Hieracium, Puccinia ... 

 Hollyhock rust (Puccinia malvace 



arum) ... 



wide distribution ... 

 Hololasidii 



Honeydew of spermogonia 

 Host and parasite, relation 

 Host-plants, imported, and new 



rusts 



indigenous, and rusts 

 starved 



Hot- water treatment of seed 

 Hypertrophy of nettle 

 Hyphae 

 Immunity acquired 



and predisposition .. 

 attempts to secure ... 

 due to physiological peculiari- 

 ties 



factors influencing ... 

 Importation of rusts ... 

 on cuttings 

 on seed ... 

 on straw ... 

 Incubation period 

 Indigenous species, table of 

 and hosts... 

 heteroecious 

 Infection, aided by injury 



and age of parts attacked 

 by aecidiospores 

 by internal germ of disease 

 By sporidiola 



germ tubes entering stomata 

 by teleutospores ... 

 by uredospores 



germ tubes piercing epider- 

 mal cells 



dew necessary for ... 

 experiments, with barberry in 

 Australia 



with foreign host plants 

 factors influencing 



35 

 35 



35 

 83 

 12 

 69 

 3 



28 

 18 

 40 

 83 

 11 

 53 

 45 

 57 

 55 

 58 

 58 

 55 

 55 

 55 

 80 



11 

 43 

 40 

 13 



60 



42 



45 



60 



73 



6 



3 



60 



60 



62,75 



61 

 60 

 42 

 43 



43,44 



43 



9 



46 

 45 

 45 

 61 



9, 60 



9 



4 



9 



10 



35 



9 



10 

 10 



Injuries, influence on infection ... 

 Inoculation, protective... 

 Insects attracted, by colour of 

 spores ... 



by honey dew 



by scent of spermogonia 



conveying sporidiola 



eating spores 

 Intermediate hosts of wheat rust 



Internal developmental tendencies 

 Introduced species 



how introduced 



on native hosts 

 Investigation of spores... 

 Irrigation and wheat rust 

 Kangaroo thorn, gall fungus 

 Knot- weed rust ( Urcmyctspolygoni) 

 Lactic acid showing up germ pores 

 Ledum palustre 

 Leguminosae, native rusts on 

 Leptopuccinia ... 



with warted 



61 

 62 



38 

 13 



ia 



28 

 7 



70 

 53 

 42 

 43 



42, 4!) 

 11 

 71 

 6 



43 

 18 

 66 



4.'. 

 11 



species 

 epipspore 



Lettuce, attempt to confer immu- 

 nity from disease 

 Liability to disease 



influenced or not by structural 



characters 

 Lichen-furgi ... 

 Life -cycles of rusts 



heteroecious 

 Life history of rusts 

 Liliaceae, native rusts on 

 Linum marginale 

 usitatissimum 



rust -resisting variety 

 Lolium perenne, crown rust 

 with introduced rust 



Mahonia in Kew gardens, rust free 



Maize rust (Puccinia maydii] 



Mallow rust (Puccinia ma/i-acearum) 



Manures and wheat rust 



Marigold rust (Puccinia calendulae) 10, 42 



Measuring spores by photography 



Melampsora, germination of teleu- 



tospore 

 Melampsora eucalypti, merely 



name 



hypericorum 

 lini 



introduced 

 paraphyses 

 Melampsoraceae 

 Mesospores, in Puccinia 



in Uromycladium ... 

 Micropuccinia... 

 Mint, native, rust (Puccinia 



menthae) 



Mounting spores 

 Mycelium, development of 

 in seed of annuals ... 

 investigation 



localized, causing hypertrophy 

 perennial causing galls 



no evidence in wheat gram 

 of Puccinia arrhenatheri ... 

 of Uromyces euphorbiae ... 



60 



61 

 37 



2,10 



58 



1 



45 

 43 

 43 

 60 

 53 

 42 



68 

 42 

 43 

 72 



49 

 22 



... 22, 49 

 44 

 22 



82 



... 25, 26 

 55 

 11 



42 

 12 



3 



5,70 



3 



6 



B 



70 



