Fai clic su di un'immagine per andare a Google Ricerca Libri.
Sto caricando le informazioni... On the Various Contrivances by Which British and Foreign Orchids are Fertilised by Insects,and the Good Effects of Intercrossingdi Charles Darwin
Nessuno Sto caricando le informazioni...
Iscriviti per consentire a LibraryThing di scoprire se ti piacerà questo libro. Attualmente non vi sono conversazioni su questo libro. Nessuna recensione nessuna recensione | aggiungi una recensione
In this investigation of orchids, first published in 1862, Darwin expands on a point made in On the Origin of Species that he felt required further explanation, namely that he believes it to be 'a universal law of nature that organic beings require an occasional cross with another individual'. Darwin explains the method by which orchids are fertilised by insects, and argues that the intricate structure of their flowers evolved to favour cross pollination because of its advantages to the species. The book is written in Darwin's usual precise and elegant style, accessible despite its intricate detail. It includes a brief explanation of botanical terms and is illustrated with 34 woodcuts. Non sono state trovate descrizioni di biblioteche |
Discussioni correntiNessuno
Google Books — Sto caricando le informazioni... VotoMedia: Nessun voto. |