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that I was able to form an intelligent idea of the flora of China and to properly appreciate its richness and manifold problems. The Chinese flora is, beyond question, the richest temper­ ate flora in the world. A greater number of different kinds of trees are found in China than in the whole of the other north-temperate regions. E very important genus of broad­ leaved trees known from the temperate regions of the Northern Hemisphere is represented in China except the Hickory (Carya), Plane (Platanus), and False Acacia (Robinia). All the coniferous genera of the same regions, except the Redwoods (Sequoia), Swamp Cypress (Taxodium), Chamaecy paris, Um brella Pine (Sciadopitys), and true Cedars (Cedrus), are found there. In North America, excluding Mexico, about 165 genera of broad-leaved trees occur. In China the number exceeds 260. Of the 300 genera of shrubs enumerated in the Kew Hand-List of Trees and Shrubs (1902 ed.) fully half are represented in China. The great interest and value, however, of the Chinese flora lies not so much in its wealth of species as in the ornamental character and suitability of a vast number for the embellishment of parks and outdoor gardens throughout the temperate regions of the world. My ...