EXPLANATION OF THE PLATES.

XI

3. A. rautabilis, with section, nat. size.

4. A. fastigiatus, one-third nat. size, with section nat. size.

5. A. rimosus, two-thirds nat. size, with section nat. size.

6. A. trechisporns, with section, nat. size.

PLATE IX.

1. A. crustuliniformis, with section, nat. size.

2. A. longicaudus, with section, nat. size.

3. A. melinoides, nat. size, with section magnified.

4. A. semiorbicularis, nat. size, witli section magnified.

5. A. reticulatns, with section, nat. size.

6. A. mollis, with section, nat. size.

7. A. Kubi, nat. size, with section magnified.

PLATE X.

1. A. variabilis, nat. size, with section magnified.

2. A. campestris, dark var., two-thirds nat. size, with section nat.size.

3. A. campestris, another variety, with section, nat. size.

4. A. arvensis, small specimen.

5. A. cretaceus, two-thirds nat. size, with section magnified. Varietywith the stem less decidedly sunk into the pileus.

6. A. squamosus, two-thirds nat. size, with section nat. size.

PLATE XL

1. A. fasciculavis, with section, nat. size.

2. A. velutinus, with section, nat. size.

3. 4. A. appendiculatus, in different conditions, nat. size, with sections slightly magnified.

5. A. Famisecii, nat. size, with section magnified.

6. A. fimipntris, nat. size, with section slightly magnified.

7. A. separatus, two-thirds nat. size, with section nat. size.