General Index, 



Mycoplasm theory 



bearing on rust in wheat 

 Native celery ... 



flax 



mint ... ... .. 



rusts, and native hosts 



on imported hosts 

 Nettle rust (Aecidium urticae) ... 

 Nuclear cycle ... 

 Nuclei, fusion of 

 Oat, wild, and wheat rust 

 Obligate parasites 

 Ochropsora 



Odour of spermogonia ... 

 Omission of spore-forms 

 Origin of heteroecism ... 



of parasitism 



of spore- forms 

 Paraphyses, function ... 



in aecidia 



in spermogonia 



in teleutosori ... 22, 



in uredosori 



Australian species with . . . 

 Parasitism, origin 



specialisation 

 Pea rust ( Uromyces pisi) 

 Peach or prune rust (Puccinia 



pruni) .... 



Pedicel of teleutospore ... 

 Peltandra virginica 

 Perennial mycelium 

 Peridermium ... 



Peridial cells 



Peridium, = Pseudoperidium 



often wanting 



varied forms 

 Phalaris, Puccinia 

 Photography in measuring spores 

 Phragmidium barnardi, germ pores 

 paraphyses 



longissirnum 



potentillae... 



rubi, teleutospore germination 



subcorticium 



paraphyses, in aecidia 



in uredosori 

 perennial mycelium 

 Phragmitcs communis, Puccinia 

 Phragmopyxis 

 Phy corny cetes ... 

 Phytopthora infestans, and copper 



salts 

 Picea excelsa ... 



morinda . . 



Ploughing, influence on wheat rust 

 Plum or prune rust (Puccinia 



pruni) ... 

 Poa annua 



pratensis ... 

 Podisoma 



Polygonum avicu lare 

 Potash, caustic, for softening 



tissues ... 

 Predisposition... 

 Primordia 



Promycelial spores (see Spori- 

 diola) 



4, 74 

 70 

 42 



42, 44 

 42 

 45 

 49 

 6 

 14 



14, 75 

 69 

 52 

 32 

 13 

 10 

 55 

 52 

 31 

 29 



22, 30 



13, 29 



24, 75 



22 



22 



52 



52 



55 



19,44 

 23 

 61 

 5 

 17 

 17 

 16 

 17 

 17 

 55 

 12 

 24 

 22 

 44 

 44 

 35 



5, 36 

 22 

 22 



5 



29, 42 

 84 

 40 



62 

 56 

 33 

 71 



44 

 22 

 22 

 28 

 43 



12 

 60 

 17 



Promycelium ... ... j 



abnormal ... ... ... 35 



cells of, separating ... 35 



elongated ... ... . . 27 



in various genera ... .. 33 



septa ... ... . . 27 



Protective inoculation ... .. 62 



Protobasidii ... ... . . 40 



Protomycelium ... . 4 



Pseudoparenchyma ... . . 4 



Pseudoperidial cells (see Peridial cells) 

 Pseudoperidium (see Peridium) 



Puccinia, introduced species ... 42 



variation in teleutospores ... 39 



Puccinia agropyri, heteroecious ... 45 



agropyrina ... ... 53 



agrostidis ... ... ... 45 



anthoxanthi ... ... 42 



arenariae, introduced ... 42 

 sporidiola germ-tubes enter- 

 ing by stomata ... 10 

 arrhenatheri, perennial myce- 

 lium ... ... ... gg 



asparagi, influence of wind ... 7 



water relation ... ... 9 



beckmanniae, imported ... 42 

 bromina contrasted with P. 



triticina... ... ... 80 



paraphyses in teleutosori ... 24, 75 

 uredospore, duration of 



germinating power ... 8 



germination and infection 3, 8 



calendulae, marigold rust ... 10 



Australian species ... 49 



short cycle ... ... 10 



caricis, heteroecious ... 45 



cesatii ... ... ... 25 



chrysanthemi, germination of 



uredospores ... ... 21 



introduced ... ... 42 



two-celled uredospores ... 19 



cichorii, introduced ... 42 



cinerariae... ... ... 49 



coronata ... ... . 53 



cyani, introduced ... ... 42 



dianthi, sporidiola germ -tubes 



entering stomata ... 10 

 ditkondrae, variation in 



teleutospores ... ... 39 



dispersa, biologic forms ... 79 



subdivision ... ... 53 



distincta, daisy rust, Aus- 

 tralian species ... 49 

 introduced on seed ... 209 

 short cycle ... ... 10 



festucae, introduced ... 42 



glumarum, mycoplasm theory 4 

 gramineOa, with aecidium on * 



grass ... ... ... 18 



graminis, biologic forms ... 79 

 carried over from year to 



year 



in Australia ... 21 , 



collective species 

 cycle of development ... 

 forms on special hosts ... 

 heteroecism increasing 

 vigor ... 



69 

 69 

 79 



58 

 53 



58 



