232 



Mycologia 



III. Teliospores clavate-oblong, 13-21X26-48^, usually 

 rounded above, rounded or narrowed below, slightly constricted 

 at the septum; wall chestnut-brown, 1-1.5/x thick, much thicker 

 above, 7-12^; pedicel tinted, about one-half length of spore. 



On Carex canescens, paupercula. 



Distribution : Nova Scotia to New York and Wisconsin. 



The name Puccinia karelica Tranz. is applied with some doubt 

 to the Carex rust here described. Tranzschel has cultured a form 

 on Carex limosa to Aecidium Trientalis to which he has given the 

 name Puc. karelica. Fraser in Nova Scotia has found good 

 field evidence to the effect that a rust on Carex paupercula is 

 connected with an aecial form on Trientalis americana. On the 

 strength of the probability that the European and American 

 forms belonging to aecia on Trientalis are the same the specific 

 name karelica has been taken up. That which makes it seem 

 uncertain is the fact that we find in the Carex paupercula rust 3 

 to 5 scattered pores while Tranzschel states that his form which 

 produces Aecidium Trientalis is indistinguishable from Puccinia 

 Limosae which has 3 to 4 equatorial pores. 



Index of Accepted Names of Puccinia on Carex 



Numerical List 



1. Kellermanii 



2. atro-fusca 



3. macrospora 



4. spatiosa 



5. minuta 



6. urticata 



7. lysimachiata 



8. Grossulariae 



Alphabetical List 

 asterum, 14 

 atro-fusca, 2 

 Caricis-strictae, 18 

 eminens, 9 

 Grossulariae, 8 

 karelica, 19 

 Kellermanii, 1 

 lysimachiata, 7 



9. eminens 



macrospora, 3 



11. minutissima 



12. universalis 



13. Phrymae 



14. asterum 



15. Peckii 



16. patruelis 



17. Sambuci 



18. Caricis-strictae 



19. karelica 



10. microsora 



microsora, 10 

 minuta, 5 

 minutissima, 1 1 

 patruelis, 16 

 Peckii, 15 

 Phrymae, 13 

 Sambuci, 17 

 spatiosa, 4 

 universalis, 12 

 urticata, 6 



