June, 1911.] 
The Known Polyporaceae of Ohio. 
361 
uncommon to find several large clusters of the plant about 
the base of a stump, especially beech. It resembles G. 
frondosa (Dicks.) Gray, but the pileoli are fewer in number 
and much larger. In the fresh specimens the hymenium 
turns to black when bruised, and this characteristic will 
identify the species. Found from July until September. 
44. Grifola frondosa (Dicks.) Gray, Nat. Arr. Brit. PI. 1 : 643. 
1821. 
Boletus frondosus Dicks. 
Commonly known as Polyporas frondosus (Dicks.) Fr. 
Resembles the preceding species in form and habit but 
easily separated. The pileoli are much narrower and more 
numerous, and are grayish cinerous in color. The plant 
generally attains a breadth of 20 or 30 cm. and a height of 
20 or more cm. Found at the bases of elm and oak stumps 
during the late fall. 
Illustrations: Sow. Eng. Fungi pi. 87; Atk. Stud. Am. 
Fungi f. 181, 182; Mcllv. Am. Fungi pi. 128; Hard, p. 391, 
f. 321. 
45. Grifola ramosissima (Scop.) Murrill, Bull. Torr. Club 
31:336. 1904. 
Boletus ramosissimus Scop. 
Generally known as Polyporas umbellatus Fr. Found at 
the base of oak trees. Reported from the southern part of 
the state, but probably rare. 
Illustrations: Schaeff. Fung. Bavar. pi. Ill; Atk. Stud. 
Am. Fungi f. 178; Hard, p. 390, f. 320. 
46. Grifola berkeleyii (Fr.) Murrill, Bull. Torr. Club 31 : 337. 
1904. 
Polyporus berkeleyii Fr. 
The same as P. anax Berk. “Nobilissimus inter-omnes 
mihi cognitos Polyporas,” to quote from Fries. A rather 
common species found around oak or ash stumps in August 
and September. It has globose, echinulate, spores which 
will identify it, as no other closely. related species has such. 
Capt. Mcllvaine cites an instance of a plant of this species 
being found near Boston several years ago, which “was 
fully four feet high and from two to three feet broad.” 2 
Illustration: Hard, p. 393, f. 323. 
47. Pycnoporus cinnabarinus (Jacq.) Karst. Rev. Myc. 3 9 : 18. 
1891. 
Boletus cinnabarinus Jacq. 
Commonly known as Polyporas cinnabarinus (Jacq.) Fr. 
This species is easily identified by its color, which is a cinna- 
2 One Thousand American Fungi, p. 484. 
