MOMORDICA ROSTRATA ZIMM.

Stem (Fig. 1G) and caudex (Fig. 1H, I) have similar anatomical features. Cortex cells have abundant chloroplasts, and the inner part has a ring of parenchyma cells that are lignified. Wood is parenchymatous, it has large amount of latex and is formed by successive vascular cambium (Fig. 1H, I). The axial matrix has scanty axial parenchyma, libriform, septate fibers (Fig. 2A), and solitary vessels with circular bordered pits (Fig. 2B). Rays are multiseriate and ray cells have undergone proliferation, making them to be confused with the conjunctive tissue. Bands of conjunctive tissue and ray parenchyma have formed a matrix of ground parenchyma. Secondary phloem has some functional cells, and few phloem cells are collapsed.