|First Collector||H.D. Hammond|
Cross-section round. Outline smooth. Culm center filled. Recognizable epidermis cells. Continuous peripheral sclerenchymatic belt. Large vascular bundles in one row. Vascular bundles integrated in peripheral stabilisation structure (girders). Sclerenchyma
Outline with rips. Upper epidermis cells in one row. Epidermis with papillae. Vascular bundles centered between the upper and lower side of the leaf. Girders extending from the vascular bundle to both sides of the leaf.