Professor Eichler has lately described, in the "Jahrbuch des Konig-lichen Botanischen Gartens zu Berlin," a singular Brazilian Anona, which, from the peculiarity now to be mentioned, he calls rhizantha. It is a tree of moderate stature, from whose trunk descend numerous very slender branches, destitute of leaves, or with scales only, and thus resembling aerial roots. Towards the ends of these branches flowers are formed, which are thrust into the ground as the branches lengthen. This plant then affords another illustration of the tendency which some plants, of which Arachis hy pogsea is perhaps the best known illustration, have of thrusting their flowers into the ground. We do not call to mind, however, any previously recorded instance of a tree having this habit. - Gardeners Chronicle.