[Vol. 9 



32 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Fructifications cespitose, 3^ cm. high, branched 2 or 3 times, 

 white, drying antimony yellow and somewhat longitudinally 

 rugose, the apices usually acute; spores hyaline, even, subglobose, 

 7X6 p. 



On ground. Delmar, New York. C. H. Peck, type. 



The above description is made on dried specimens which are 

 what Peck understood as C. Krombholzii. The original descrip- 

 tion of the latter was made by Fries for some figures by 

 Krombholz of what the latter understood as C. Kunzei Fr. For 

 the present European opinion of C. Krombholzii, see Cotton & 

 Wakefield, loc. cit., p. 198. C. mutans is intermediate between 

 C. rugosa and C. cristata, having coloration and spore characters 

 of C. rugosa and some resemblance in aspect to C. cristata. 



42. C. rugosa Bulliard, Herb, de la France, pi. 448, f. 2. 1789 ; 

 Fries, Syst. Myc. 1: 473. 1821; Hym. Eur. 669. 1874; Sacc. 

 Syll. Fung. 6: 696. 1888; Peck, N. Y. State Mus. Rept. 28: 53. 



1879; Morgan, Cincinnati Soc. Nat. Hist. Jour. 11: 87. 1888; 

 Cotton A: Wakefield, Brit. Myc. Soc. Trans. 6: 185. 1919. 



Plate 6, fig. 42. 

 Illustrations: Bulliard, loc. cit.; Cooke, Brit. Ed. Fungi, pi. 9. 

 j.32; Patouillard, Tab. Anal. Fung. /. 38; Quelet, Champ. Jura 

 et Vosges 1. pi. 20. J. 5; Krombholz, Nat. Abbild. u. Beschr. 

 Schwamme pi. 64. f. 13-17, and pi. 53. f. 14-17 (type of C. 

 Krombholzii); other references in Sacc. Syll. Fung. 19: 328. 



Fructifications simple or slightly irregularly branched, solitary 

 or gregarious, 5-10 cm. high, white or pallid, rather tough, 

 thickened upwards, up to 1 cm. thick, longitudinally wrinkled, 

 solid, apex blunt, basidia with 2 sterigmata; spores hyaline, 

 even, subglobose, 9-11x8-9 u, or 9-10 u in diameter. 



On ground in woods. Common. 



Cotton and Wakefield add further: "This species varies in 

 habit from simple to very branched forms, and the surface may 

 be exceedingly rugose to almost smooth. It is generally recog- 

 nizable, however, by the distinct, irregular, longitudinal wrinkles 

 and the large spores." 



American specimens which I have seen are only about half as 

 large as stated above, and they assume in the herbarium an 

 antimony yellow color which is helpful in recognizing at sight 

 dried specimens of unusual forms of this species; the spores are 



