218 



Fig. 3. Side view of column, x6: a, anther; lap, lateral ap- 

 IDendage of column. 

 4. Front view of column: s, stigma; other lettering as in 

 fig. 3. 

 ., o. Three-quarter profile of labellum, x6: unshaded, proxi- 

 mal end of lower surface; shaded, shows callous and 

 membranous parts of distal end of dorsal surface. 

 ,, 6. Top view of labellum, x6: showing central callous por- 

 tion and lateral membranous portions. 



7. Front view of flower, x4: showing, infer alia, ventral 



surface of labellum with point of dorsal sepal show- 

 ing just above; lettering as in fig. 1. 



8. Three-quarter view of flower, x4: lettering as in fig. 1. 

 ,, 9. Pollen masses (p), x8: r. caudicle ; f/, disc. 



Plate VII. b. 



Fig. 1. Side view of flower, x4: / .s, lateral sepal; d s. dorsal 

 sepal ; I p. lateral petal ; I, lateral appendage of 

 column; /, labellum; o, ovary. 



2. Dorsal view of flower, x3: roJ, column; other lettering 

 as in fig. 1. 



3. Side view of column, x6: a, anther; 1 ap, lateral appen- 

 dages of column. 



4. Front view of column, x6: s, stigma; r, rostellum ; 

 other lettering as in fig. 3. 



5. Side view of labellum, x6: /, labellum; h, hinge. 



6. Upper view of labellum showing callous central portion 

 and lateral membranous portion, x6: 1, labellum; h, 

 hinge. 



7. A lower Anew of labellum, x6 : lettering as in figs. 5 and 6. 



8. Front view of flower, x4: lettering as in fig. 1. This 

 view shows well the small glands (g) at the tips of 



lateral petals. 



Plate VIII. 



Fig. 1. (Lower left-hand corner of plate.) Three-quarter side 

 view, xl-J: Is. lateral sepals; d s, dorsal sepal; Ip, 

 lateral petals; /, labellum; or, ovary. 



,, '2. Column from .side, x6: r, rostellum; a, anther-case; 

 / ap, latei'al appendages, h 1, basal lobe (often abor- 

 tive). 



,, 3. Column from front, x6: /■ and lap, as in fig. 2; st, 

 stigma. 



,, 4. Column from back. x6: lettering as in fig. 2. 



,, o. Labellum from side. x6: cpl, callous portion; mpl, 

 membranous portion; epl, erect or gibbous portion. 



,, 6. Labellum from top. x6: cjjl, callous poi-tion ; mpl, 

 extensive membranous part. 



,, 7. Showing connate lateral sepals, x3: these are occasion- 

 ally quite f I'ee ; often free at tip. 



,, 8. Side view of flowei', xli: / .s, lateral sepals; d s, dorsal 

 sepal ; / p, lateral petals ; m p I. membranous part 

 labellum ; cpl, callous part labellum ; I ap, lateral 

 appendages; a c, anther-case; or, ovary. 



,, 9. Top view of flower, xl^: Is, d s, and / /) as in fig. 8; 

 I, labellum. 



,, 10. Connate lateral sepals, xl-|. 



