140 



Mycologia 



The species was originally described from New York by Pro- 

 fessor Atkinson. Kauffman also reports a station for it in 

 Michigan. 



7. POLYPORUS SCHWEINITZII Fr. 



This polypore, rather common in Pennsylvania on conifers, 

 especially species of pine, was collected near Boalsburg, Pa., on 

 the roots of a living tree of Quercus alba. This is probably an 

 unreported host for this species. The woods in which the speci- 

 men was taken is an open mature stand, consisting entirely of 

 oaks and hickories, and there is no indication that conifers have 

 ever been present in the wood lot. 



8. PORIA SEMITINCTA Peck 



This beautiful Poria, originally described by Peck 8 in 1879 an< ^ 

 recently re-described by the writer, has hitherto been found, to 

 the writer's knowledge, only in four localities in New York State. 

 Its appearance in Pennsylvania is, therefore, of considerable 

 interest. It was collected from the bark of an oak log, near State 

 College, October 5, 191 9. The specimens were fresh and on the 

 young subiculum and the growing margin of nature plants the 

 pinkish-lilac color was quite marked. This color has persisted 

 in the dried plants up to the present time. There is also a slight 

 " sweet-acid " odor to the fresh specimens, similar to that in 

 Polyporus galactinus Berk. A few scattered cystidia are present 

 in certain areas but often whole sections are without them. In 

 agreement with this, they were reported by the writer as absent 

 in the type specimens of- this species but rarely present in another 

 collection preserved at Albany. In the present collection they 

 are 6-9 /x in diameter, project rather strongly, and are slightly 

 incrusted. At first sight it was supposed that this collection 

 might represent the resupinate condition of Polyporus parga- 

 menus which on the growing margin is often a similar lavender 

 or lilac color. The plants are too thin for that species, however, 

 the spores are not allantoid but oblong or short-cylindric, the 

 cystidia when present are different, and the hyphae of this plant 

 are quite characteristic. No clamps are present, cross walls are 



8 Bull. N. Y. State Mus. 205-206, pp. 106-108. 1919. 



