201 



32 ^Ul Mycologia 



19. Puccinia argentata (Schultz) Wint. Aeciospores from 

 Adoxa Moschatellina L., sown on Impatiens aurea Muhl. 



20. Puccinia Absinthii DC. Teliospores from Artemisia sp., 

 sown on A. dracunculoides Pursh. 



21. Uromyces perigynius Halst. Teliospores from Car ex 

 intumescens Rudge, sown on Aster paniculatus Lam., and from 

 C. deflexa Hornem., sown on Solid ago rugosa Mill., and Aster 

 ericoides L. 



22. Uromyces J unci (Desm.) Till. Teliospores from J uncus 

 Balticus Willd., sown on Carduus Flodmanii Rydb. 



23. Uromyces Astragali Sacc. Urediniospores from Aragal- 

 lus Lamberti (Pursh) Greene, and from Astragalus sulphur escens 

 Rydb., sown on Astragalus carolinianus L. 



24. Uromyces Medicaginis Pass. Urediniospores from Medi- 

 cago sativa L., sown on same host. 



25. Gymnosporangium Juniperi-virginianae Schw. Teliospores 

 from Juniperus virginiana L., sown on Malus Malus (L.) Britt. 



26. Gymnosporangium clavipcs C. & P. Teliospores from 

 Juniperus sibirica Burgsd., sown on Amelanchier erecta Blanch., 

 and Crataegus tomentosa L., and aeciospores from Amelanchier 

 erecta Blanch., sown on Juniperus sibirica Burgsd. 



27. Gymnosporangium clavariae forme (Jacq.) DC. Telio- 

 spores from Juniperus sibirica Burgsd., sown on Amelanchier 

 erecta Blanch., and Crataegus punctata Jacq. 



28. Gymnosporangium nidus-azris Thaxt. Teliospores from 

 Juniperus virginiana L., sown on Cydonia vulgaris Pers., and 

 Amelanchier vulgaris Moench. 



29. Gymnosporangium cornutum (Pers.) Arth. Teliospores 

 from Juniperus sibirica Burgsd., sown on Sorbus americana 

 Marsh. 



30. Gymnosporangium Davisii Kern. Teliospores from Juni- 

 perus sibirica Burgsd., sown on Aronia arbutifolia (L.) Medic, 

 and A. nigra (Willd.) Britt. 



31. Gymnosporangium Betheli Kern. Teliospores from Juni- 

 perus scopulorum Sarg., sown on Crataegus cerronis A. Nels. 



32. Gymnosporangium Nelsoni Arth. Teliospores from Juni- 

 perus virginiana L., sown on Amelanchier erecta Blanch. 



