(410 ) 
spores white, usually globose, echinulate: veil none: stipe 
central, firm, solid. 
Type, Russula nigricans (Bull.) Fries, Epicr. 350. 1838. 
(Syll. 5: 453-) 
This equals Russula § 1, Compactae, of the Sylloge. The 
species closely resembles Galorrheus except for the lack of a 
milky secretion. 
14. DIXOPHYLLUM gen. nov. 
Putrescent: cells of the sporocarp vesicular, non-lactiferous : 
pileus fleshy, thin, epelliculate, moist or subviscid, convex or 
depressed: lamellae adnate or subdecurrent, usually narrow, 
forking and somewhat heterophyllous : spores white or yellow, 
usually globose, echinulate: veil none: stipe central, fleshy, 
becoming somewhat spongy but usually solid. 
Type, Aussula furcaia (Pers.) Fries, Epicr. 352. 1838. 
(Syll. 5: 456.) 
This is Russula § 2, Furcatae, of the Sylloge, but it should 
probably also include some of the species there given under 
§ 4, Heterophyliae. Some of the species approach rather 
close to Aussulina, but on the whole it is a sufficiently well- 
marked group. 
15. OMPHALOMYCES Batt. Fung. Hist. 36. 1755. 
Putrescent: cells of sporocarp vesicular, non-lactiferous : 
pileus fleshy, thin, slimy-viscid, convex or depressed, striate : 
lamellae adnate, heterophyllous, sometimes forking, narrow: 
spores white or whitish, globose or elliptical, usually echinu- 
late: veil none: stipe central, stout, usually spongy. 
Type, Russula galochroa Fries. (Syll. 5: 466). 
This is intended to represent in part at least Aussula § 4, 
Heterophyllae, of the Sylloge. It is unfortunate that the no- 
menclatorial type species is poorly known and may belong 
elsewhere, in which case the genus must be renamed. /tus- 
sula foetens Pers. may be considered as the representative 
species. It remains for European mycologists to determine 
what Aeussula galochroa Fries really is. 
