OF THE MATTO GROSSO EXPEDITION, 1891-92. 515 
PLATE XXIX. 
Fig. 1. Heterocroton mentiens. 2. A male flower opened. 3. A detached sepal; 4. A petal; 5. A 
stamen; and 6. Pollen-grains. 7. Calyx of female flower. 8. Part of same showing the 
glands, etc. 9. Pistil. 10. Supposed placentation, but, owing to want of material, there is 
some doubt about this. 11. Floral diagram of male flower. 
PLATE XXX. 
Fig. 1. Mabea Indorum. 2. Part of male inflorescence detached. 3. Calyx and ovary of female flower. 
4, Ditto in longitudinal section. 5. A seed.—6-12. Brosimopsis lactescens (male plant). 
7. Inflorescence in longitudinal section. 8. A male flower expanding. 9. Ditto expanded. 
10. Flower from which the petals have been removed. 11. Pollen. 12. Floral diagram, 
PLATO XXXI. 
Fig. 1. Brosimopsis lactescens (female plant). 2. Inflorescence in longitudinal section, 3. A seed, 
4. The same, the testa removed to show the radicle (+), plumule (p/), and cotyledons (c). 
PLATE XXXII. 
Fig. 1. Dichea cornuta. 2. A detached flower seen from above. 3. Labellum and column in side 
view.—4-10. Notylia lyrata. 5. Side view of a flower from which the near-side petal has been 
removed. 6. The lateral sepals detached. 7. Labellum and column in side view. 8. La- 
-bellum detached. 9. Upper part of column in side view. 10. Pollinia. 
PLATE XXXIII. 
Fig. 1. Costus acaulis. 2. A flower detached. 3. Astamen. 4. Part of same showing anther-cells and 
distribution of vascular bundles. 5. Stigma.—6. Vanilla ensifolia ?, Rolfe. 
PLATE XXXIV, 
Fig. 1. Zygella graminea. 2. A flower detached. 3. Base of perianth showing attachment of stamens. 
4. A stamen and its subtending style-arm. 5. A stamen detached. 6. Top of an anther and 
style-arm, showing the condition as observed after moistening dried flowers, the delicate 
staminal appendages being closely attached to the base of the style-arm, from which they 
cannot be removed without careful dissection. 7. Pollen; 5, a grain with its pollen-tube. 
8. Pistil detached. 9. Ovary in transverse section. 10. A capsule. 11. Seeds. 12. Enlarged 
view of a seed. 13. Floral diagram.—14—22. Panicum furcellatum. 15. Glume I. 
16. Glume II. 17. Glume III. 18. Lower valvule. 19. Upper valvule. 20, Lodicule. 
21. A stamen. 22. Pistil. 
PLATE XXXV. 
Fig. 1. Aphyllarum tuberosum. 2. A detached spathe and spadix. 3. Spathe opened and for the most 
part removed, to show attachment of spadix. 4. Group of synandria seen from above. 5. Side 
view of a synandrium. 6. Ditto in transverse section: Z. c. latex-canals entirely or partially 
surrounding the vascular bundles; rs. resin-sacs; sc. sclerenchyme. 7. Mature and effete 
pollen-grains. 8. Group of female flowers from above. 9. Ovary opened from the side, and 
10. from the back. 11. A single ovule, showing its anatropy. 12. Diagram showing re'ation 
between the vascular bundles and sclerenchyme masses in the scape. 13. The three ovules 
from an ovary of Caladium heterotypicum. 
