Ce livre est un guide pratique pour la description des végétaux. Il examine les différents aspects des plantes, y compris leur anatomie, leur morphologie et leur écologie. Il comprend également des instructions détaillées pour la collecte, la conservation et la classification des spécimens végétaux. Ce livre est indispensable pour tous les botanistes et les amateurs de plantes. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.