[Vor. 7 
136 ANNALS OF THE MISSOURI BOTANICAL GARDEN 
Resupinate portion 3X2 cm.; the free margin up to 5 mm. 
broad. 
On under side of dead, fallen limbs of Liquidambar and mossy 
dead trunk of Carpinus. North Carolina and Alabama. Jan- 
uary. Rare. 
S. styracifluum is intermediate between S. rameale and S. 
rugosum; in the region where it occurs it is likely to be regarded 
as a resupinate form of S. rameale, from which it differs in darker 
and more irregular hymenial surface, greater thickness of fructi- 
fication, margin sometimes with a black edge, and reflexed part 
tomentose to the margin; the pale-colored conducting organs 
are similar in the two species but rather more abundant in S. 
styracifluum. The general aspect is so similar to that of S. 
rugosum, very common in Europe, that the yellow milk of S. 
styracifluum was properly regarded by Schweinitz as an impor- 
tant distinctive character of the American species; other differ- 
ences are that the intermediate layer is much broader and denser 
than that of S. rugosum, that the hymenium is only 20-30 u 
broad, never zonate, and that the conducting organs are much 
less numerous and paler than in S. rugosum. 
Specimens examined: 
North Carolina: Salem, Schweinitz, type (in Schweinitz Herb., 
Fries Herb., and Curtis Herb.). 
Alabama: Auburn, on Carpinus, F. S. Earle & C. F. Baker (in 
Burt Herb. and Mo. Bot. Gard. Herb., 5061). 
38. S. gausapatum Fries, Hym. Eur. 638. 1874; Sace. Syll. 
Fung. 6: 560. 1888; Massee, Linn. Soc. Bot. Jour. 27: 180. 
1890. Plate 4, fig. 36. 
Thelephora gausapata Fries, Elenchus Fung. 1: 171. 1828; 
Epier. 538. 1838.— T. spadicea Fries, Elenchus Fung. 1: 176. 
1828 (not T. spadicea Persoon, Syn. Fung. 568. 1801. See 
Bresadola, I. R. Accad. Agiati Atti III. 3: 100. 1897).— 
Stereum spadiceum Fries, Epicr. 549. 1838; Hym. Eur. 640. 
1874; Berkeley, Outlines Brit. Fung. 270. 1860; also of more 
recent English authors.—S. spadiceum var. plicatum Peck, N. Y. 
State Mus. Rept. 50: 132. 1897.—S. cristulatum Quelet, Champ. 
Jura et Vosges 3:15. pl. 1.f. 15. 1875.—8. occidentale Lloyd, 
Myc. Writ. 5. Letter 69:12. 1919. 
Type: specimen from Fries in Kew Herb. 
