;^.S.S THK KL'STS Ol' NOVA SCOIIA. — Fir^SKH. 



I. Tel iii>|)..rc> iii.i-ll\- 2- mid 4-('ell('(l. in llic hitler rase llic 

 wall- ill tlic t'lirm of a cross. 



1. roli<)s|)(>ros singly in tlie parenchymatous tissue 



of the host Urediiiopsis. 



■2. TeliosjKn'es united in single layered crusts — ■ 



A. Toliospores formed outside the cells 



of host ; Piicciniastnim. 



B. 'J'cliospores within cells of host — 



0. Life cycle with aecia and tclia 



Calyptospora. 



h. Life cycle with telia, on Tsuga 



Xcrium,. 



[I. Tcliospores l-ccllcil. always united in small or large 

 crusts. 



1. 'J'elio.spores formed outside the cells of host — 



a. TTredinia with paraphyses intermixed with 

 spores, .\ccia -without a pcridinm . . . 

 ]I dam psora. 



h. TTredinia and aecia vvitli pcridium. No 

 paraphyses Melavipsoridinni. 



2. Telios]x>res formed inside of cells of host — 



a. TTredinia opening by a pore 



• ]ff']f()n])s()r('lla. 



h. TTredinia not opening l)y a pore. t<'li(»- 

 spores hyaline Ilyalopsora. 



Coi.KOSrOKlACl'. A I',. 



1. 'I'cliospores foi'mcd in a gelatinons swelling of sp<n-o- 



phorc. on Pinus Gallowaya. 



2. Teliospoi-cs in flat crusts, nrediiiia in chains 



Colrospnrhnn. 



Cko.VAKTIACK A I',. 



1. Telia i-nsliion sliapeil ('Iirysoinyxa. 



2. Telia thread-like or coliniinnr Crotiarfrani. 



