-----+
| | umbonate. | Inocybe. |
| +-----------------------------+-------------------+
| | striate. | Pluteolus, |
| | | Galera. |
+---------+-----------------------------+-------------------+

[Footnote 1: Damp ground.]
[Footnote 2: Somewhat free.]
[Footnote 3: Some with rings.]

Table IV.--Dark Purple and Black Spores.

+---------------------------------------+-------------------+
| Size of plants, small. | Psathyrella. |
+---------------------------------------+-------------------+
| Plants deliquescent. | Coprinus, |
| | Bolbitius. |
+-----------------+---------------------+-------------------+
| Time of growth, | summer. | Coprinus, |
| | | Stropharia, |
| | | Panaeolus. |
| +---------------------+-------------------+
| | autumn. | Coprinus, |
| | | Psaliota, |
| | | Panaeolus, |
| | | Hypholoma. |
+---------+-------+---------------------+-------------------+
| Habitat | In woods, in uncultivated | Stropharia, |
| | places, on ground. | Psathyra. |
| +-----------------------------+-------------------+
| | In grass and fields, | Psaliota. |
| | on ground. | |
| +-----------------------------+-------------------+
| | On other plants--epiphytal. | Stropharia. |
| +-----------------------------+-------------------+
| | On stumps. | Hypholoma, |
| | | Psathyra. |
| +-----------------------------+-------------------+
| | On wood. | Psathyra,[1] |
| | | Hypholoma. |
| +-----------------------------+-------------------+
| | On manure. | Stropharia, |
| | | Panaeolus, |