It takes the average reader 11 hours and 43 minutes to read Primula by John Richards
Assuming a reading speed of 250 words per minute. Learn more
The classic text on primulas updated and revised by the leading expert, Professor John Richards of the University of Newcastle. Primula is one of the greatest garden genera, in terms of the number of varieties grown and its popularity. It is also among the largest and most widespread - approximately 430 species. This comprehensive title covers: Major taxonomic revision History of the exploration and introduction of Primula Cultivation: temperature, soil and compost, propagation Pests and Diseases Evolutionary history Biological characters used in sectional classification Heterostyly and homostyly Phyletic scheme for the sections of Primula Synopsis of the genus Primula. ?This thorough revision brings this definitive reference work right up to date and incorporates new and improved information for most of the species. For the first time, identification keys are included for all species, and other special features include several newly described species, over 30 new illustrations, and important fresh details on the evolutionary history of Primulas from recent DNA evidence, leading to major changes in classification. The book covers the historical and practical information on the exploration and cultivation of the genus; the evolution of the species; and a chapter on heterostyly and homostyly includes the latest developments in this fascinating subject. However, the bulk of the book is given over to a systematic treatment of each species, including: valid name and place of publication synonym description chromosome number breeding behaviour and flowering time distribution habitat, including altitudinal range taxonomic and other general notes variation cultivation hybridization
Primula by John Richards is 679 pages long, and a total of 175,861 words.
This makes it 229% the length of the average book. It also has 215% more words than the average book.
The average oral reading speed is 183 words per minute. This means it takes 16 hours to read Primula aloud.
Primula is suitable for students ages 12 and up.
Note that there may be other factors that effect this rating besides length that are not factored in on this page. This may include things like complex language or sensitive topics not suitable for students of certain ages.
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