REPORT OF THE STATE BOTANIST FOR 1 924 47 



Warren county, H. D. House, July 25, 1923. On the same host, 

 summit of Mount Mclntyre, July 13, 1923. At the last named 

 locality dwarfed examples of Abies balsamea and P i c e a 

 m a r i a n a were the only associated conifers. 



Melampsorella elatina (A. & S.) Arthur 



II-III, on leaves of Stellaria borealis Bigelow (Al- 

 sine borealis Britton), Newcomb, Essex county. H. D. 

 House, July 22, 1922. The heavily infested clusters (Witches 

 broom) caused by the aecial stage of this rust on the balsam fir 

 (Abies balsamea) are very common about Newcomb, and 

 their abundance suggested a careful search for the alternate stage, 

 known to occur upon species of Alsinaceae. Stellaria bore- 

 alis was noted to be abundant especially in low places where the 

 balsam fir was often infected, and in July the leaves of the Stellaria 

 were found to be abundantly infected with the telial stage in sev- 

 eral places about Newcomb. No infection was found upon C e r a s - 

 t i u m V u 1 g a t u m L. The sori on the leaves of Stellaria are 

 very inconspicuous and easily overlooked. 



Merulius ochraceus Lloyd- 

 On decayed wood of Be tula lute a Michx.f., North Elba, 

 Essex county. Peck. Indian pass. Peck. 



Merulius cerium Fries^ 

 On dead limbs of Salix nigra Marsh. Albany. H. D. 

 House, December 28, 1919. Burt (Ann. Mo. Bot. Gard. 4 : 323. 

 191 7) cites a collection from White Plains, by E^nderwood. 



Micropuccinia conglomerata (K. & S.) Arthur & Kern^ 

 In 1920 and 192 1 this rare rust was collected in abundance upon 

 the leaves of Petasites palmata (L.) Gray, near Newcomb. 

 On July 20, 1922, it was also found upon the same host at Boreas 

 ponds about 20 miles east of Newcomb. 



Micropuccinia porphyrogenita (M. A. Curt.) Arthur & Jackson 

 Newcomb and Boreas ponds, Essex county, on leaves of Corn us 

 canadensis L. H. D. House, July 18 and 20, 1922. 



Micropuccinia mesomajalis (B. & C.) Arthur & Jackson 

 On living leaves of Clintonia borealis (Ait.) Raf.. 

 northern end of Indian pass, Essex county, about 2400 feet 

 altitude. H. D. House, July 15, 1923. 



