|First Collector||S.D. Aird|
Cross-section round. Outline wavy. Culm center hollow. No visual difference between epidermis cells and sclerenchyma cells. Continuous peripheral sclerenchymatic belt. Large vascular bundles in 2-3 rows. Solitary large vascular bundles. Sclerenchymatic sh
Outline with rips. Upper epidermis cells in one row. Epidermis with spikes. Vascular bundles centered between the upper and lower side of the leaf. Girders extending from the vascular bundle to both sides of the leaf.