406 PBTCH : 



stipite brevi cylindrico glabro ; lauiellis paucis, infcerstitiis 

 reticulatis. Pileus |-1 inch across ; stem 1-1| line high." 

 Specimens answering to both these descriptions are on the 

 herbarium sheet ; tener, with smooth interstices, is a younger 

 specimen than rufescens. It may be noted that Berkeley and 

 Broome's "pulverulent" means rugose, as in several other 

 cases (e.g., Marasmius rotalis). 



According to the rules, the Marasmius must be called 

 Marasmius rufescens. This affords another example of 

 inappropriate nomenclature enforced by the principle of 

 priority, since the rufous form is comparatively rare, the 

 common form being grey. The sessile species was not 

 distinguished by Berkeley and Broome, except incorrectly as 

 Cantharellus capensis, and may therefore remain under 

 Holtermann's name, though the latter appears to be a nomen 

 nudum. 



Marasmius rufescens B. & Br. Pileus circular, orbicular, or 

 reniform, up to 4 cms. diameter, usually about 2 cms., cam- 

 panulate then convex, edge often recurved, sulcate over the 

 gills and veins, depressed over the stalk, glabrous, shghtly 

 rugose, membranous, tough, gray or purple-gray, or gray- 

 brown, blackening slightly when old, sometimes rufous, rarely 

 orange. Stalk short, excentric, curved, 3 to 4 mm. long. 

 1 mm. diameter, solid, at first the same colour as the pileus, 

 then black, clothed with minute white fibrils at first, glabrous 

 when old, expanding at the apex ; base swollen. Occasionally 

 specimens are found which have a central stalk. Gills few 

 (6 to 12), thin, broad (up to 3 mm.), distant, sometimes forked, 

 united by strong veins or folds when old, shghtly paler than 

 the pileus, adnate to the swoUen apex of the stalk, sometimes 

 appearing collared. Spores white, oblong-oval, ends rounded ; 

 in one gathering, 12-15 x 5-7 ^w, in another 7-11 X 4-6 M. On 

 dead branches, stems of lianes. &c. 



47. — Lentinus giganteus Berk. 



Lentinus giganteus Berk., Hooker's London Joum. Bot. 

 (1847), p. 403. 



Lentinus stenopkyllu^s Berk., Hooker's London .Journ. Bot. 

 (1847), p. 495. 



