142 



Mycologia 



men was brought in on July 22 of this year. It is undoubtedly 

 to be considered as a rare species although apt to be abundant in 

 local isolated regions. 



11. Tremellodon gelatinosum (Scop.) Fr. 



About 25 specimens of this unique member of the Tremella- 

 ceae were collected by the writer on an old hemlock log in Bear 

 Meadows, Center County, Pa., August 30, 1919. The species is 

 apparently rather widely distributed but only rarely collected. 

 The color of the upper surface when fresh varied from nearly 

 white to drab or burly brown (Ridgway). The largest speci- 

 mens measured 6X7 cm. Another collection from New Hamp- 

 shire is in the writer's herbarium. Very good illustrations are 

 given in Hard's mushroom book, fig. 405. 



12. Trichoglossum hirsutum (Pers.) Boudier 



Collected in Bear Meadows, Center County, Pa., August 30, 

 1919. Several hundred individuals were found growing closely 

 associated on a small area of earth, leaf mold, and rotten wood. 

 The largest specimens were about 10 cm. tall and in some the 

 ascigerous portion was somewhat convoluted. The stem and 

 hymenium is beset with a multitude of spines that give a velvety 

 appearance and feeling to the plant. The spores were uniformly 

 15-septate as described by Durand and measured 130-140 X 5—6 /a. 



State College, Pa. 



Explanation of Plates 

 Plate 9 



Fig. 1. View of upper surface of a rather young sporophore of Fomes 

 bakeri. X T A. In age the pileus may become considerably rimose. Over- 

 holts Herb. No. 5529- Photo by E. T. Kirk. 



Fig. 2. Lateral view of a vertical section through a perennial sporophore. 

 X 1. Note the conspicuous context and the marked layering of the tubes. 

 Overholts Herb. No. 4174. Photo by E. T. Kirk. 



Plate 10 



Fig. 3. Tremella sparassoidea. View, from above, of the entire plant. 

 X K- Type collection, Overholts Herb. No. 5407. Photo by the writer. 



Fig. 4. Merulius aureus. Specimens largely resupinate. X 1. Overholts 

 Herb. No. 5455. Photo by E. T. Kirk. 



Fig. 5. Mucronella ulmi. Specimens from bark of living Ulmus americana. 

 X 1^. Overholts Herb. No. 3169. Photo by the writer. 



