1914] 



BURT — THELEPHORACE^ OF NORTH AMERICA. II 343 



glabrous, flattened and ligulate at first, then spreading out 

 laterally at the apex, and at length somewhat palmately cleft 

 into 2-12 unequal, obtuse, finger-shaped branches; stem curved, 

 solid, equal or somewhat tapering towards the base, bone- 

 brown, sometimes swollen where attached to the substratum; 

 hymenium even or but slightly venose, inferior, colored like 

 the pileus; spores white, even, pjTiform, tapering to the base, 

 6-8 X 3-4 IX. 



Fructifications 1-2| cm. high; pileus 3-15 mm. broad, 1 

 mm. thick; stem 8-15 mm. long, 1-1^ mm. thick. 



On rotten chunks of wood in frondose woods. Ohio. June. 



All specimens of the collection except one have the pileus 

 flabelliform; in this exceptional specimen, the pileus is narrowly 

 turbinate, depressed, and with the finger-shaped branches 

 arranged in a circle on the margin, pi. 17 fig. 19b. This species 

 makes for Craterellus the same connection between the central- 

 stemmed, cup-shaped type of pileus and the flabelliform type 

 that Thelephora multipartita shows in Thelephora, and that is 

 common in Steremn. The hymenium of the flabeUiform speci- 

 mens of Craterellus palmatus is so similar to the upper surface 

 of the pileus in color and consistency that one cannot readily 

 distinguish between these surfaces in the dried specimens. 

 For these reasons, the present species cannot be referred to 

 either Skepperia or Friesula, and it is of especial interest in 

 showing that Craterellus has a natural section of species with 

 flabelliform pileus. The spores of C. pahnatus are noteworthy. 



Specimens examined: 

 Ohio: Oxford, L. 0. Overholts, 1649, type (in Mo. Bot. Card. 

 Herb, and in Overholts Herb.). 



i6. C. dilatus Burt, n. sp. Plate 17. fig. 16. 



Type: in Farlow Herb. 



Fructifications single, fleshy; pileus flabelliform, somewhat 

 triangular, glabrous, drying a dirty pinkish buff, the margin 

 somewhat irregularly lobed, crisped, and curving upward; stem 

 solid, equal, flexuous, drying Natal-brown, with white myce- 

 lium at the base; hymenium even, drying Isabella-color to clay- 

 color; spores white, even, broadly ovoid, obtuse, 8-10 x 6-7 n. 



Dried fructification 4 cm. long; pileus 15 mm. long, 15 mm. 

 broad, ^ mm. thick; stem 2| cm. long, hardly 1 mm. thick. 



