Definitions of Rare or Hitherto Undescribed Australian Plants is a botanical book written by Ferdinand von Mueller and published in 1855. The book is a comprehensive guide to the classification and identification of rare and previously unknown plant species found in Australia. It contains detailed descriptions of these plants, including their physical characteristics, habitat, and distribution. The book is divided into several sections, each focusing on a different group of plants, such as ferns, orchids, and eucalypts. Mueller was a renowned botanist and the first Government Botanist of Victoria, and his work on Australian plants is considered to be of great scientific importance. This book is a valuable resource for anyone interested in the flora of Australia, as well as for botanists and plant enthusiasts.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.