REPORT OF THE STATE BOTANIST FOR 1 92 1 87 



Marasmius campanellus (Peck) Atk. & House 



On dead twigs of Arbor Vitae, Thuja o c c i d e n t a 1 i s L., 

 in Bonaparte swamp, northern Lewis county, H. D. House, June 22, 

 and at Newcomb, Essex county, July 20. This curious little Agaric, 

 typically a Marasmius in texture, but with a densely hirsute 

 pileus, appear to be quite common on dead twigs of Arbor Vitae 

 which are still attached to the tree or on branches and twigs lying 

 loosely upon the ground, throughout the cold cedar swamps of 

 central and northern New York. 



Melampsorella elatina (A. & S.) Arthur 

 Abundant on the dwarfed needles of " witches brooms," which it 

 causes on the balsam fir, Abies balsamea (L) Mill. Newcomb, 

 Essex county, H. D. House, July 21, 1921. Not uncommon in 

 Essex, Hamilton and Greene counties, but the alternate stage on 

 Cerastium arvense, appears to have been collected in this 

 State only at Poughkeepsie, many years ago by Gerard. 



Melampsoropsis abietina (A. & S.) Arthur 

 II and III, on leaves of Labrador tea, Ledum groenlandi- 

 cum Oeder, Bonaparte swamp, Lewis county, H. D. House, June 

 22. Not previously reported from this State, and the aecial stage. 

 Peridermium abietinum Thum., occurring onPicea mariana. 

 P . r u b e n s and P . e x c e 1 s a , has not been collected in New 

 York. 



Melampsoropsis chiogenis (Dietel) Arthur 

 On the under surface of leaves of the creeping snowberry, 

 Chiogenes hispidula (L.) A. Gray. Bonaparte swamp, 

 Lewis county, H. D. House, June 22. The upper surface of the 

 infected leaves are conspicuously yellow, and this serves as a ready 

 means of finding what is otherwise a very inconspicuous and rare 

 rust. It has been reported from North Elba by Kauffman (N. Y. 

 State Mus. Bui. 179, p. 85. 1915) asChrysomyxa chio- 

 genis Dietel. 



The adjacent conifers were Pinus Strobus, Larix lari- 

 cina, Abies balsamea, Picea mariana and Pi c e a 

 r u b e n s , while Tsuga canadensis occurred within 200 

 yards on an adjacent slope. The aecial stage is suspected to occur 

 upon the cones of one of the species of Picea. 



