Part 1, 1907] POLYPORACEAE 69 
3. Grifola frondosa (Dicks.) S. F. Gray, Nat. Arr. Brit. 
Pl. 1: 643. 1821. 
Boletus frondosus Dicks. Pl. Crypt. Brit. 1: 18. 1785. 
Polyporus frondosus Fries, Syst. Myc. 1: 355. 1821. 
Polypilus frondosus Karst. Rev. Myc. 39: 17. 1881. 
Pileus imbricate-multiplex, 15-40 cm. in diameter; pileoli very numerous, branching 
from acommon trunk, imbricate or confluent, variable in size and shape, dimidiate to 
flabelliform, 1.5-6 cm. broad; surface smoky-gray, fibrillose, radiate-striate ; margin thin, 
undnlate or lobed, strongly inflexed when dry: context white, very thin, tough, fragile, 
having the odor of mice; tubes white, 2-3 mm. long, mouths circular and regular when 
young, 3 toa mm., often large and angular with age, edges white, thin, entire to lacerate : 
spores subglobose to ellipsoid, smooth, hyaline: stipe tubercular, white, connate-rimose. 
TYPE LOCALITY: England. 
HapiraT: At the base of oak trees. 
DISTRIBUTION : North America ; also in Europe. 
ILLUSTRATIONS : Sow. Engl. Fung. p/. 87; Atk. Stud. Am. Fungi f. 176, 177. 1900. 
EXSICCATI: Ellis & Ev. N. Am. Fung. 2/03; Beck, Krypt. Exs. 307; Rab.-Wint. Fungi Eur. 
3947 ; Krieger, Fungi Sax. 2115. : 
4. Grifola ramosissima (Scop.) Murrill, Bull. Torrey 
Club 31: 336. 1904. 
Boletus ramosissimus Scop. Fl. Carn. ed. 2.2: 470. 1772. 
Boletus umbellatus Pers. Syn. Fung. 519. 1801. 
Polyporus umbellatus Fries, Syst. Myc. 1: 354, 1821. 
Cladomeris umbeliata Quél. Ench. Fung. 167. 1886. 
Cladomeris ramosissima Murrill, Jour. Myc. 9: 95. 1903. 
Pileus imbricate-multiplex, densely clustered, squarrose, umbellate, 12-20 cm. broad ; 
pileoli very numerous, quite regular, circular in outline, depressed at the center, 1-4 cm. in 
diameter ; surface usually fuliginous, sometimes light-brown or even white, fibrillose, very 
rugose when dry; margin thin, inflexed: context white, fibrous, very thin, fragile when 
dry; tubes decurrent, shallow, mouths angular, 2-3 to a mm., edges thin, entire to lacerate : 
spores oblong, hyaline, 9-10 X 3-4 #: stipe tubercular, with long cylindrical branches, 
which are white and usually entirely covered with tubes. 
TYPE LOCALITY: Carniola. 
HapitaT: At the base of oak trees. : 
DISTRIBUTION: Connecticut, New York, Pennsylvania, and Ohio; also in Europe.. 
ILLUSTRATIONS: Schaeff. Fung. Bavar. #/. 177; Atk. Stud. Am. Fung. f# 178. 1900. 
ExsiccatTi: Krieger, Fungi Sax. 859. 
5. Grifola Berkeleyi (Fries) Murrill, Bull. Torrey Club 31: 337. 1904. 
Polyporus Berkeleyi Fries, Nov. Symb. 56. 1851. 
Polyporus subgiganiteus Berk, & Curt. Grevilleal: 49. 1872. (Type from Connecticut.) 
sea Beatiei Banning; Peck, Ann. Rep. N. Y. State Mus. 31: 36. 1879. (Type from Mary- 
land.) 
Polyporus lactifuus Peck, Bull. Torrey Club8: 51. 1881. (Type from Maryland.) 
Polyporus anax Berk. Grevillea 12: 37. 1883. (Type from Ohio.) 
Pileus imbricate-multiplex, 15-50 cm. broad, 10-20 cm. high; pileoli very broad, 
applanate to infundibuliform, thin, 5-15 cm. broad, 5-15 mm. thick; surface white to ob- 
scurely alutaceous, subtomentose, rugose-undulate ; margin acute, undulate to lobed, sterile, 
often inflexed: context white, tough, fragile when dry, homogeneous, milky in young 
plants, 5~10 mm. thick ; tubes decurrent, white, unequal, 2-5 mm. long, mouths angular, 
about 1 mm. broad, edges soft, white, entire, very fragile when dry: spores globose, 
roughly echinulate, 6-8 «: stipe short, tubercular, 5-10 cm. thick. 
TYPE LOCALITY: North Carolina. 
Hapirat: At the base of oak trees. 
DISTRIBUTION: Eastern Canada to Virginia. 
ExsiccaTI: Ellis & Ev. N. Am. Fungi 706; Rab.-Wint. Fungi Eur. 3427. 
6. Grifola fractipes (Berk. & Curt.) Murrill, Bull. Torrey 
Club 31: 338. 1904. 
Polyporus fractipes Berk. & Curt. Grevillea 1: 38, 1872. 
Polyporus flavidus Peck, Ann. Rep. N. Y. State Mus. 26: 68. 1874. (Type from New York.) 
Not P. favidus Berk, 1852. 
