MourRILL: PoLtyporACcEAE oF NorTH AMERICA 335 
3. Pileoli lateral, spatulate or dimidiate. 3. G. frondosa. 
Pileoli centrally attached, circular and umbilicate. 4. G. ramosissima. 
4. Sporophore of immense size, 20-60 cm. in diameter, spores echinulate, 8-9 x. 
. G. Berkeleyt. 
Sporophore small for the genus, only 8 cm. or less in diameter, spores smooth, 
ovoid, much smaller. 6. G. fractipes. 
1. Grifola poripes (Fr.) 
Polyporus poripes Fr. Nov. Symb. 48. 1851. 
Polyporus flavovirens B. & Rav. Grevillea, 1: 38. 1872. 
Small plants of this species from the collections of Curtis 
were described by Fries in 1851. Somewhat older plants were 
later renamed by Berkeley and Ravenel, the name referring to the 
very characteristic mixture of yellow and green in the plant as it 
develops. Most of the herbarium specimens of this species are 
young and do not properly show the systematic position of the 
plant, its relationship clearly being with Grifola instead of Scutiger. 
It occurs on the ground in woods, rising from a tubercle and 
spreading broadly in irregular lobes. The substance is eaten by 
insect larvae. Specimens have been examined from Massachu- 
setts, Blake, Ricker ; Canada, Dearness ; New York, Long ; Dela- 
ware, Commons ; New Jersey, Ellis ; Ohio, Morgan ; Pennsylvania, 
Everhart ; Virginia, Murrill ; and Carolina, Ravenel. It is fairly 
Common and always eagerly picked by collectors. A good de- 
Scription of it may be found in the Journal of Mycology for Jan- 
uary, 1886. Ellis there makes some corrections in the original 
description of Berkeley and Ravenel. 
2. Grifola Sumstinei sp. nov. 
