In referring to the tendency to bilateral ramification on the branches and even on the main stem in Cupressineæ, such as Cupressus, Thuja, and Libocedrus, Professor Sachs, in his Text-book (Bennett's translation pp. 444–5), thus expresses himself: “Branch systems of three or four orders of shoots are developed in one plane in such a manner that a system of this kind assumes a definite contour, and somewhat the appearance of a pinnate leaf. In Taxodium the foliage-leaves are formed in two rows on slender branches a few inches in length; in T. distichum these fall off in autumn, together with their leaves, thus presenting a still greater resemblance to pinnate leaves.”