190 Clavarias of the United States and Canada 



Clavaria Murrilli n. sp. 



Plates 77 and 91 



Plants single, gregarious, 1.5-5.5 cm. high (in the dried state), 

 slender and with a long, pale, tough stalk less than 1 mm. thick 

 (when dry) which is loosely covered through most of its length 

 with long, pale, flexuous, cottony threads; branches few, elon- 

 gated, ascending, once or twice rebranched, the tips subacute. 

 Color of the stem when fresh, dull carneous, of the branches fer- 

 ruginous, the tips brownish; when dry the stem is grayish white, 

 shading gradually into the Dresden brown to Brussels brown 

 branches which are flattened and wrinkled, as is the stem, as 

 though shrinking much in drying. 



Spores brown under the microscope, long-pip-shaped, 3-3.7 x 

 8. 5-9. 3a, strongly asperulate with slender, sharp spines. Basidia 

 clavate, 4.8-5. 5u thick, 4-spored. Hymenium 50-60a thick; 

 threads of flesh parallel, closely packed, 3. 3-5. 5 u thick, with clamp 

 connections at the nodes. 



This species we take pleasure in naming for Dr. W. A. Murrill, 

 who found it in 1904. The color in the fresh state was noted by 

 Dr. Murrill. Except for this the description is drawn from the 

 dried plants, which now number nine or ten, with some fragments. 

 It seems evident that the plant is in the grandis group and is 

 nearest C. longicaulis, as indicated by the long, incarnate stem, 

 dark brown branches and large, brown, asperulate spores. The 

 spines on the spores are more like those of C. grandis than any 

 other member of the group. The species is clearly marked by its 

 slender form, pale, cottony stem and long, narrow, sharply spiny 

 spores. The dried plants are now attached to a mixture of pine, 

 hemlock and oak leaves. 



Tennessee: Unaka Springs. In leaves, mixed woods, altitude 1700 feet. 

 Murrill, No. 907. (U. N. C. Herb., type, and N. Y. Bot. Gard. Herb., 

 co-type). 



