384 Wisconsin Academy of Sciences, Arts, and Letters. 
Description of Plates 
Plate XIV. Lentinus lepideus Fr. A. Part of a plant showing the nature 
of the edge of the gills in the genus Lentinus. B and D. Surface of 
pilei showing the spot-like appressed scales. C. Plant with an an¬ 
nulus. E. Exannulate plant. 
Plate XV. A. Lentinus spretus Pk. A form of L. lepideus. The illustra¬ 
tion shows the long, slender stem. B. Lentinus obconicus Pk. Also a 
form of L. lepideus. The photograph is from plants of the type col¬ 
lection. 
Plate XVI. A large form of Lentinus lepideus. The photograph is re¬ 
duced one-third. 
Plate XVII. A. Plant with nearly smooth, scaly-spotted pileus and 
branching dark furfuraceous stem. B. Plants growing from a sclero- 
tium. The sclerotium is like a rhizome with the dying end below and 
the growing point above. 
Plate XVIII. Lentinus tigrinus (Bull.) Fr. A and F show the surface 
of the pileus and the gill surface. The plants were preserved in 
alcohol, and some of the gills adhere to each other. They were not 
parasitized. B and E are from another collection. The gills in E 
are partially normal and partially overgrown by hyphae belonging to 
the parasite. C shows an enlarged portion of the gills of another 
plant which are partially free and partially covered with the parasite. 
The photograph was taken from a dried specimen. In the fresh 
plant, in the unparasitized part, the gills were straight and normal. 
C, D. Still other plants of the same character showing the tendency 
of the pileus to split on the margin. The gills are free from parasitfc 
hyphae. 
Plate XIX. Another form of Lentinus tigrinus. A, B. Gill surface and 
surface of the pileus of non-parasitized plants. D-G. The same with 
the gills covered with the parasite. C. Two plants grown together 
and with the gills parasitized. 
Plate XX. A form of Lentinus tigrinus with thick, tufted scales on both 
the pileus and stem. The stems long and flexuous. 
Plate XXI. A. The form of Lentinus tigrinus shown in Plate XX, but 
with the gills covered by the parasite. B-D. Form of the same 
species with a thick heavy stem. B is fully parasitized, C only 
slightly so- E. Plant very similar to Lentinus adhaesus Britz. 
Plate XXII. A, B, C. Various views of Lentinus suavissimus Fr. A has 
the form of L. jugis Fr. or L. odorus Vill. D, E, F. Views of Lentinus 
haematopus Berk. In D the short red stem is lateral. 
Plate XXIII. Lentinus cochleatus Fr. Cluster of large, irregular plants 
showing the smooth, even pilei, toothed gills, and grooved stems. 
