Section through the Lamina in the Region of a Prominent Vein (fig. 37)—In these veins there is a large, more or less T-shaped mass of sclerenchyma surrounding the vascular bundle. As in the midrib, these cells are smaller on the under side than on the upper side, but here those on the upper surface are much larger than those above the midrib. Fig. 37.—Astelia montana. Section through one of large veins (× 175). a, tomentum; b, upper epidermis; c, aqueous tissue; d, mesophyll; e, stoma; f, hair; g, stereome. Between the sclerenchyma and the upper epidermis there is a hypoderma of aqueous tissue consisting of more or less oval cells. Between the sclerenchyma and the lower epidermis this layer is only one cell thick.