The My CO logic Flora of the Miami Valley, Ohio. 201 



On bark of sugar-maple. At first cream-colored, then acquir- 

 ing a brownish tint epecially toward the margin, velvety in the 

 younger part, smooth in the older. 



/ 13. C. PORTENTOSUM, B. & C. Widely effused, soft, thick, 

 spongy, whitish-ochre, white within. Hymeniurn tuberculose, 

 glabrous. 



On very decayed wood. Forming a thick mass, spreading 

 widely; the substance soft, white' and spongy. 



14. C. ciNEREUM, Fr. Waxy, becoming rigid, confluent, 

 agglutinate, lurid; the border similar. Hymenium sprinkled with 

 a very thin cinerous pruina. 



On bark or wood of hickory, beech, etc.; common. 



15. C. INCARNATUM, Fr. Waxy, becoming rigid, agglutinate, 

 indeterminate, the border radiating. Hymenium persistently 

 bright colored, sprinkled with a very thin flesh colored pruina. 



Upon bark and wood; common. The hymenium is bright 

 red, orange, etc., retaining the color quite persistently. 



16. C. CONFLUENS, Fr. Submembranaceous, indetermmate, 

 agglutinate; the border radiate. Hymenium even, naked, hyaline, 

 white when dry. 



On bark of Acer, Vitis, etc. In small patches and widely 

 effused ; the border adnate, exceedingly delicate. 



17. C. COMEDENS, Nees. Effused, innate, growing beneath 

 the epidermis and throwing it off; flesh-colored, becoming pallid. 

 Hymenium even, glabrous, when dry rimose. 



On dry branches of Ostrya ; distinguished by its peculiar way 

 of growing upon the bark beneath the epidermis. 



Subgenus. Hvpochnus. Corticia floccose-collapsing or 

 furnished with a tomentose, subpulverulent hymenium. 



18. C. MOLLE, Fr. Subrotund, floccose-fleshy, loosely inter- 

 woven, soft, glabrous, pallid, reddish-spotted; the underside 

 villous, the border naked. Papi|ae rather large, unequal. 



On rotten wood. Hymenium loosely fibrillose and the surface 



not waxy. 



Genus VH. — Cyphella, Fr. 



Fungi submembranaceous, cup-shaped, adnate behind, com- 

 monly stipitate-porrect, pendulous. Hymenium definitely inferior, 

 similar, even or at length slightly wrinkled. 



A genus formerly confused with the Pezizas, but different from 

 them altogether, first in the lack of a heterogeneous disk, secondly 

 in the absence of asci. 



