1919^ The Hydxums of jSToeth Carolina 197 



ones that have been found since. They are like the type plants in 

 the ^ev7 York Botanical Garden except that the spines in the latter 

 are closer and better developed than in ours. 



1325. On rather dry sandy soil in woods southwest of cemetery, October 6, 

 1914. Drawing of spores. 



Genus Hydnochaete. 



Eesupinate, very thin, fibrous, the teeth simple or branched, usually 

 flattened towards the ends ; growing on wood. This seems to be a con- 

 necting link between the Hydiwceae and the Polyporaceae, and Mur- 

 rill places the genus in the latter f amih^ as Hydnoporia. As our plants 

 show no signs of tubes even in the youngest stages, I think it less con- 

 fusing to retain it in the Hydnaceae. We have but one species. 



Hydnochaete olivaceum (Schw.) Banker 

 Irpex cinnamomeiis Fr. 

 Hydnoporia fiiscescens (in ISF. Am. Flora 9:3. 1907). 



This is a peculiar plant, forming pendant, hydnoid teeth from an 

 extensive, resupinate layer or from separate patches. The teeth are 

 usually about 1 mm. long and branched once or twice, often flattened 

 and appearing like the horns of a caribou ; in extreme forms, as our 

 1^0. 1973, the teeth may be much longer and more complexly branched, 

 reaching 4 mm. in length. Resupinate portion and basal part of teeth 

 tomentose. Entire plant a rusty cinnamon color. Texture tough and 

 pliable when fresh, brittle when dry. 



Setae (of No. 961) long, pointed, thick-walled, deep reddish brown, 

 8-12.5 X 50jw. Spores not found, 



90. On dead beech limb in Battle's Park, October IS. 1911. 



961. On dead beech limb by Durham road near bridge, October 29, 1913. 



1973. On a fallen oak limb. Battle's Park. November 10, 191.5. 



3218. On a dead limb of tulip tree near Judge's Spring, October 9, 1918. 



Asheville. Beardslee. 



Common, trunks and limbs. Curtis. 



