“Field Key to the Genera of the Gill Mushrooms” by Louis C.C. Krieger, published in 1920, is a concise and practical guide aimed at assisting both amateur and professional mycologists in identifying various genera of gilled mushrooms. Spanning just 12 pages, this field key offers a systematic approach to mushroom identification, emphasizing observable morphological characteristics.

The guide focuses on key features such as cap shape, gill attachment, spore color, and stem structure, providing a logical sequence of choices that lead the reader to the correct genus. This methodical approach simplifies the often complex task of mushroom identification, making it accessible to those with limited experience in mycology.

Krieger’s work is grounded in the traditional practices of early 20th-century mycology, reflecting a time when field observation was paramount. The guide’s straightforward format and emphasis on physical characteristics underscore the enduring value of hands-on study in natural settings.

“Field Key to the Genera of the Gill Mushrooms” serves as a timeless resource for mushroom enthusiasts. Its clear, step-by-step methodology continues to be relevant for those interested in the study and appreciation of gilled fungi.