A IIIS 
[uu v >, E 
1920] 
BURT—THELEPHORACEAE OF NORTH AMERICA. XII 93 
Thelephora macrorrhiza Léveilé, Ann. Sci. Nat. Bot. III. 
5:146. 1846; Sacc. Syll. Fung. 6: 524. 1888. 
Type: in Museum of Paris Herb., according to Léveillé and 
Lloyd. 
Pileus infundibuliform, coriaceous, somewhat membrana- 
ceous, rufescent, striatulate, the margin erect, possibly laciniate; 
hymenium suleate, rather pallid; stem rather long, radicated. 
On ground, French Guiana. Coll. Melinon. 
Pileus coriaceous, nearly membranaceous, infundibuliform, 
russet, with rugosity from base to margin, the latter thin, lacini- 
ate; hymenium glabrous, rugose like upper surface of pileus; 
stem 1-2 decimeters long, glabrous, continued by a long radi- 
cated portion which extends perpendicularly into the ground. 
This character and also the absence of hairy covering of the stem 
afford a great difference between this species and Stereum 
surinamense. 
The above is a translation of the original description. I have 
not seen authentic specimens; Lloyd notes, loc. cit., that they 
are, “Stereum elegans, of an unusually regular growth. Not so 
confluent as ordinary.”’ 
6. S. Burtianum Peck, N. Y. State Mus. Bul. 75:21. pl. O. 
f. 30-34. 1904; Sace. Syll. Fung. 17:163. 1905; Lloyd, Myc. 
Writ. 4. Stip. Stereums, 21. teat f. 537. 1913. Plate 2, fig. 5. 
Illustrations: Peck, loc. cit.; Lloyd, loc. cit. 
Type: in N. Y. State Mus. Herb. and in Burt Herb. 
Fructifications gregarious, coriaceous, thin, infundibuliform, 
sometimes split to the stem on one side, sometimes dimidiate, the 
upper surface slightly uneven with radiating fibrils and fibrillose 
ridges, cartridge-buff when fresh, drying Sayal-brown to hazel, 
the margin lobed or incised; stem solid, minutely tomentose, 
Sayal-brown in the herbarium; hymenium even or radiately 
uneven, glabrous, yellow ocher to pinard-yellow when fresh, 
becoming pinkish buff to Sayal-brown in the herbarium; pileus 
in section 600 » thick, composed of densely and longitudinally 
arranged hyphae 2 „in diameter; no cystidia nor gloeocystidia; 
spores hyaline, even, subglobose, 3-4 » in diamter, or 4X3 4. 
Fructifications usually 12-20 mm. high, 5-15 mm. in diameter; 
stem 3-8 mm. long, 3-1} mm. thick. 
