[Vol. 3 

 220 ANNALS OF THE MISSOURI BOTANICAL GARDEN 



New Jersey: Newfield, J. B. Ellis, in Ellis, N. Am. Fmi^, 

 421, and also the cot5'pe of Grandinia tabacina (in N. Y. 

 Bot. Gard. Herb.). 



Ohio: A. P. Morgan, 525 (in N. Y. Bot. Gard. Herb., under 

 the manuscript name Odontia olivacea). 



10. H. olivascens (Berk. & Curtis) Burt, n. comb. 



Zygodesmus olivascens Berk. & Curtis, Grevillea 3:145. 

 1875. 



Type: type and cotype in Kew Herb, and in Curtis Herb. 



Fructification effused, thin, not separable, tomentose, ci- 

 trine, yellowish citrine or buffy citrine, the margin thinning 

 out; KHO solution dissolves some of the color 

 />% upon coming in contact with the sections and 



•'■^ becomes somewhat brownish in their vicinity; 



Fig. 10 in structure 150-200)u, thick, with now and then 



H. olivascens. ^ ijyplia running along the substratum and 

 sending out suberect branches which branch re- 

 peatedly, become loosely interwoven, and are somewhat clus- 

 tered; basal hyphae slightly colored, nodose-septate, thin- 

 walled, 5-6)1* in diameter; basidia with 4 sterigmata; spores 

 subglobose, concolorous with the basal hyphae, aculeate-echin- 

 ulate, the body about 6/t in diameter or Si/o-Ti/o X 51/2-7/*. 



Fructifications sometimes in little patches 1-2 cm. long, 

 11/2-1 cm. broad, sometimes growing more or less interrupt- 

 edly over areas up to 15 cm. long, 3 cm. broad. 



On very rotten wood and on bark of fallen branches of 

 both coniferous and frondose species. New Brunswick to 

 South Carolina. September to November. Probably com- 

 mon. 



H. olivascens is readily distingTiished from other species 

 of Hypoclinus by its conspicuous citrine color of some kind 

 (flavo\T.rens of Saccardo's 'Chromotaxia') which has been 

 retained well by the original collection for more than sixty 

 years. From the description, Tomentella favovirens v. 

 Hohn. & Litsch. is but slightly, if at all, different from H. 

 olivascens. 



