[Vol. 4 



258 



ANNALS OF THE MISSOURI BOTANICAL GARDEN 



Sacc. Syll. Fung. 6 : 648. 1888; Massee, Linn. Soc. Bot. Jour. 

 25 : 129. 1889. Coniophora fulvo-olivacea Massee, Linn. Soc. 

 Bot. Jour. 25 : 134. 1889; Sacc. SyU. Fung. 9 : 241. 1891. 



Type: in Herb. Fries; the specimen in Kew Herb, from 

 Fries and named by him Thelephora olivacea is Coniophora 

 Betulae, 

 Fructification effused, adnate, somewhat felt-like, and sep- 

 arable from the substratum with a scalpel, 

 ' \ drying buffy citrine and Saccardo's olive 

 to brownish olive, the margin thinning out 

 and sometimes whitish; hymenium even, 

 I tomentose, setulose ; in structure 200-700 /* 

 thick, composed of more or less colored 

 hyphae 3-6 n in diameter, not nodose- 

 septate, not usually incrusted, which are 

 loosely interwoven next to the substratum 

 and form a very dense hymenial layer; 

 cystidia septate, granule-incrusted, taper- 

 ing upward, concolorous with the hyphae 

 at the base, paler above, 8-12 /z in diameter, 

 protruding 50-100 n ; spores colored, even, 

 7-12x4%-5% Ai, often flattened on one 

 side. 



Fructification 4-10 cm. long, 2-5 cm. 

 broad. 



On coniferous wood and bark, rarely on 

 frondose species. Canada to Louisiana 

 and westward to Idaho. 



C. olivacea is paler externally and in- 

 ternally than C umbrinay has fewer 

 cystidia, and hyphae with usually thinner 

 walls and often collapsed. I have been able to detect no mor- 

 phological characters which sharply separate these species. 

 I was not able to study in Herb. Fries the original collection 

 from Femsjo of Coniophora olivacea, for the specimen was 

 loaned to Bresadola when I was at Upsala. I have presented 

 G. olivacea as understood by Bresadola in the specimen com- 

 municated to me by him and cited below. The specimen of 



Fig. 14 

 C. olivacea. 

 Spores, protruded por- 

 tion o f cystidium, 

 hyphae. X 665. 



