ADDITIONS TO MERULlUS. 
109 
Merulius pelliculosus, Cooke. 
Broadly effused, membranaceous, closely adnate, white, hyaline 
when dry, like a thin pellicle, margin naked, hymenium reticulated 
with shallow angular pores, scarcely visible when dry (about J 
m.m. diam.). 
On branches of Acacia. Victoria. (Mrs. Martin, 762). 
Merulius pallens, Schwein ( not of Berkeley). 
Does not appear to differ from Merulius corium. 
Merulius terrestris, B. Sf Br. ( undescribed ). 
Can scarcely be different from Merulius brassiccefolius. Schwein. 
IRPEX ADDENDA. 
By M. C. Cooke. 
Irpex decurrens, Berk, in Herb. 
Pileo effuso, reflexo, tenui, azono (1-2 c.m.), sericeo, fuligineo, 
sicco incurvo, postice decurrente ; dentibus subulatis, acutis, elon- 
gatis, pallidioribus. 
On bark. Japan. (DicJcins, 16.) 
Irpex crispatus, Berk, in Herb. 
Totus resupinatus, ex albo ochraceus, subiculo tenui, subarach- 
noideo, aculeis compressis, membranaceis, inaequalibus, crispatis, 
apice denticulatis. 
On bark. Venezuela. 
Quite different from I. depauperatus. 
Irpex modestus, Berk, in Herb. 
Effusus, adnatus, umbrinus ; margine indeterminato, tenuissimo, 
subvelutino, sinuato-poroso ; dentibus confertis, compressis, brevi- 
usculis, basi conjunctis. 
On bark. Mauritius. 
More delicate than any form of I. cinnamomeus. 
Berkeley includes Polyporus candidulus , Lev. Sacc. Syll., No. 
5151, under Irpex with specimens from France, but we are dis- 
posed to doubt its being a good Irpex. 
Xrpex clathratus, Berk, in Herb. 
On bark from Venezuela. 
Appears to be too abnormal a condition for description as a dis- 
tinct species. 
Irpex decolorans (Irpex decolor, B. Sf C. in Herb.). 
Incrustans, mollis, subgelatinosus, albus, demum cartilagineus 
lividusque ; ambitu determinato, subfimbriato ; dentibus compressis, 
inaequalibus, sparsis ; apice acutis, integris. 
On rotten logs, over-running leaves, twigs, etc. Cuba, 835. 
