60 TEXAS RESEARCH FOUNDATION: CONTRIBUTIONS, VOLUME 5 
Fig. 17. Parathesis aeruginosa Standl. 1, Flowering branch; K 14. 2, Leaf, showing 
undersurface; X 14. 3, Calyx, spread out; X 5. 4, Flower; X 5. 5, Pistil; x 5. Illustrated 
from type, A. V. Tonduz 17659 (US), by Vivien Frazier, 
