PROF. OLIVER ON NEW PLANTS FROM RORAIMA. 299 



Plate XLV. 

 Figs. 1 & 2. Tabebuia Roraimee, Oliver, sp. n. 1, plant in flower; 2, stamens. All enlarged. 



Plate XLVI. 



Figs. 1-6. (A.) Epidendrum Imthurnii, Ridley, sp. n. 1, plant in flower ; 2, flower; 3, labellum and 

 column, front view; 4, ditto, side view; 5, anther-case; 6, pollinia. All enlarged. 



Figs. 7-10. (B.) Epidendrum violascens, Ridley, sp. n. 7, plant in flower ; 8, expanded flower ; 9, same, 

 posterior sepal and lateral petal attached ; 10, fruiting specimen. Figs. 7 and 10 about nat. 

 size, 8 and 9 are enlarged. 



Plate XLVII. 



Figs. 1-6. Zygopetalum venustum, Ridley, sp. n. 1, plant in flower; 2, labellum and column; 3, label- 

 lum, side view ; 4, column ; 5, anther-case ; 0, pollinium. All enlarged. 



Plate XLVIII. 



Figs. 1-6. (A.) Stenoptera adnata, Ridley, sp. n. 1, plant in flower; 2, flower; 3, labellum; 4, 



column ; 5, same, side view ; 6, pollen. All enlarged. 

 Figs. 7-11. (B.) Pelexia aphy I 'la, Ridley, sp. n. 7, plant in flower ; 8, expanded flower ; 9, longitudinal 



section of perianth-tube, with labellum ; 10, column ; 11, pollen. All enlarged. 



Plate XLIX. 



Figs. 1-6. (A.) Tofieldia Schumburgkiana, Oliver, sp. n. 1, plant in flower; 2, fragment of leaf, showing 

 ciliolate margin ; 3, flower ; 4, stamen ; 5, pistil ; 6, transverse section of ovary. All en- 

 larged. 



Figs. 7-14. (B.) Pwpalanthus Roraimie, Oliver, sp. n. 7, plant ; 8, outer smaller, and inner larger 

 involucral bracts; 9, staminate flower and bracteole; 10, same, expanded; 11, inner peri- 

 anth-segment and adnate stamen; 12, stamen, back and front view; 13, pistillate flower; 

 14, pistil. All enlarged. 



Plate L. 



Figs. 1-8. (A.) Xyris setigera, Oliver, sp. n. 1, plant in flower ; 2, fragment of leaf, showing setose 

 margin; 3, involucral bract; 4, flower; 5, perianth, laid open; 6, stamen; 7, penicillate 

 staminodia; 8, style-branches. All enlarged. 



Figs. 9-15. (B.) Xyris witsenioides, Oliver, sp. n. 9, plant in flower; 10 & 11, involucral scales; 12, 

 perianth, laid open; 13, 13a, anthers, back and front; 14, staminode; 15, pistil. All en- 

 larged. 



Plate LI. 



Figs. 1-6. Cryptangium stellatum, Boeckl. 1, plant; 2, branchlet of inflorescence; 3, spikelet; 4 & 5, 

 outer and inner glumes ; 6, anther. All enlarged. 



Plate LII. 



Figs. 1-8. Everardia montana, Ridley, sp. n. 1, plant; 2, branchlet of inflorescence ; 3, male spikelet; 

 4, florets; 5, glume; 6, stamens ; 7, female spikelet; 8, pistil and hypogynous setae. Fig. 1 

 about nat size, all others enlarged. 



