
First Collector | L.E. Stevens |
Collection Date | 1992-04-20 |
Country | USA |
Province | Arizona |
Latitude | 36.200000000000003 |
Longitude | -113.083330000000004 |
Altitude | 510 |
Habitat | Grand Canyon Natl. Park, river mile 179 |
Cross-section round. Outline smooth. Epidermis with hairs. Recognizable epidermis cells. Epidermis with cuticula. Large vascular bundles distributed over the entire culm. Solitary large vascular bundles. Sclerenchymatic sheath around vascular bundles with
Outline with rips. Upper epidermis cells in one row. Epidermis with hairs. Vascular bundles centered between the upper and lower side of the leaf. Vascular bundles surrounded by cells with atypical shape. Girders extending from the vascular bundle to bot