"The Fern Bulletin, April 1912" by Various is a quarterly scientific publication focused on ferns and their ecology, written during the early 20th century. This issue contributes to the wider botanical knowledge of ferns, specifically presenting studies and observations relevant to various species and their habitats. The likely topic of the book centers around the documentation of fern species, their distribution, and characteristics. This edition includes several articles and papers on topics such as the fern flora of Illinois, which details the variety of fern species in the state based on geographical and environmental factors. It discusses some problematical ferns like "Gymnogramma lanceolata", contributing insights into classification challenges. Additionally, there are notes on specific fern varieties, including "Asplenium angustifolium" and "Polystichum acrostichoides f. Gravesii", highlighting their unique traits and growing conditions. This issue serves as a valuable resource for botanists and enthusiasts interested in the identification, classification, and conservation of ferns. (This is an automatically generated summary.)

The Fern Bulletin, April 1912: A Quarterly Devoted to Ferns