A_Contents

This thesis is structured as follow:

B_Introduction

B_1. Earth Metablome Initiative

B_2. Digital Botanical Gardens Initiative

B_3. Definition of the tree

B_4. iNaturalist

C_Methods

C_1. Sampling

C_2. Extraction

C_3. Analysis

C_4. Sample Tracking & UUID

D_Metabolomic Analysis

D_1. Liquid Chromatograph-Mass Spectrometry parameters

D_2. Data processing

D_3. Molecular networking

D_4. Metabolite annotation

E_Results

F_Conclusions

G_Perspectives

H_References