Note 5 — CONTENTS. (continued 2)

I have carefully compared, since my return to England, a great many specimens of the Himalayan Picea, and am sorry to be obliged to dissent from the opinion of their distinctness, which has been expressed by many excellent observers. Great variations occur in length of leaf, which is either green on both sides, or very glaucous below. All have notched leaves, but the notch varies much in depth and form. There are also differences in the form of the cones and the shape of the scales. The long green-leaved state is that of the moist Himalaya; in the driest regions the very short glaucous-leaved form occurs. There are, however, among the specimens collected by Wallich, Strachey, and myself, so many intermediate forms of leaf, that I feel satisfied that all must be considered states of one species, varying, like most Coniferæ, with climate and other accidental circumstances.