374 Wisconsin Academy of Sciences, Arts, and Letters. 
more thick. Gregarious on ground abounding in humus, Mount 
San Antonio, California. August. 
“This large species was found at an elevation of 1000 ft. It 
is well marked by the peculiar areolate and scaly cracking of the 
surface of the pileus. The scales of the stem are similar to those 
of the pileus. The lamellae are thicker than those of Lentinup 
lepideus and the spores are smaller. The scales are concolorous 
not spot-like as in that species.” 
Note. Lentinus maximus Johnson (Bull. Minn. Acad. Sci. 1878: 338) 
has nothing according to the brief description to distinguish it from a 
large form of L. lepideus. 
6. Plate XVII, A. A form with an even, finely furfuraceous, 
branching stem and small scales on the pileus. 
The plants are peculiar in the character of the stem and in the 
habitat on deciduous trees. The stem is covered with a brownish 
furfuraceous coat like that on the pileus of Polyporus brumalis. 
The pilei are regular, somewhat umbonate, yellowish tan color, 
with small, darker colored, spot-like scales. The general appear¬ 
ance, spores, and substance were those of Lentinus lepideus. The 
plants were collected at Geneseo, Illinois. 
7. Plate XVII, B. Sporophore growing from a sclerotium. 
The plants grew in sawdust by an old slab pile at Neebish, Michi¬ 
gan. They were typical Lentinus lepideus, except that the stem 
was bulbous and black furfuraceous where it emerged from the 
sclerotium. The sclerotium was tough, black, white and finely 
fibrous within. It was dying at one end and had a growing point 
at the other with some lateral buds. The formation of the sclero¬ 
tium was probably due to the growth of the plants in the loose 
sawdust. Plants with a similar sclerotium but more irregular in 
shape have been found growing in very rotten wood at Geneseo, 
Illinois. 
Species of Lentinus which form sclerotia have long been known. 
Pries made a special section in the genus (Scleroma) for them 
with L. tuber-regium as the type. These sclerotia vary from the 
solid, black-coated masses of hyphae of L. woermanni, described by 
Schroeter to simple conglomerations of earth and fungal hyphae. 
T. Petch (Ann. Eoy. Bot. Gard. Peradeniya, August, 1915) has 
described another form produced by L. similis and L. infundibuli- 
formis ,, which consists of masses of rotten wood penetrated and 
