Fig. 17. 
Fig. 18. 
OF THE DIPTEROCARPACEÆ. 147 
of xylem and phloém, not very distinctly shown in the figure. The 
central body mainly consists of one large and one small half-moon- 
shaped mass of xylem and phloém, without resin-duets. 
Internode of Dryobalanops lanceolata, Burck, showing lateral leaf- 
traces as raised lines. "The places where sections 1-5 were taken are 
indicated. 
Vateria acuminata, Hayne. (Magnified 10 times: Alcohol Material, 
Ceylon.) Midrib at the base of blade. Outer semicircle of II vas- 
cular bundles, each with a resin-duct, closed on the upperside by a 
straight bar of xylem and phloém. A continuous ring of bast-fibres 
encloses the whole. The central mass consists of two half-moon- 
shaped vascular bundles, xylem above, phloém below, each with 3 
resin-duets. 
Parte II. 
2. Hopea Helferi (Vatica Helferi, Dyer), stamen and ovary cut 
open. 
4. H. oblongifolia, Dyer, ovule, ovary cut open. 
6. H. discolor, Thw., ovary cut open, part of inflorescence. 
7. H. parviflora, Bedd., ovary. 
9. H. cernua, Teysm. et Binn., stamen and ovary cut open. 
10. H. Pierrei, Hance, ovary. 
12. Parashorea stellata, Kurz, anther and ovary. 
14. Shorea Thiseltoni, King.—13. Stamens, one of the 5 inner epi- 
sepalous longer stamens, with 2 of the outer circle ; the third 
outer stamen, which stands opposite to the longer stamen of the 
inner circle, has been omitted. 14. Ovary cut open. 
16. S. vulgaris, Pierre, stamen, ovary. 
18. S. Pinanga, Scheff., stamen, ovary cut open. 
20. S. floribunda, Kurz, stamen, ovary cut open. 
21,30. S. inappendiculata, Burck, ovary cut open, stamen. 
23. Balanocarpus zeylanicus, 'Trim., stamen, ovary cut open. 
24. B. Curtisii, King, ovary cut open. 
26. B. coriaceus, Brandis (Richetia coriacea, Heim).—25. Embryo, 
showing the long radicle, to which are attached, near the base of 
seed, the two cotyledons, each divided into two fleshy lobes: r.c., 
the lobes of the radicular ; p.c., those of the placentar cotyledon. 
26. Lower portion of loose membranous testa, enveloping 
placenta (p) in a fold (not clearly) indicated on the right-hand 
side. Testa and placenta intrude between the two lobes of the 
placentary cotyledon. 
27. B. Hemsleyanus, King, ovary cut open. 
28. Anisoptera thurifera, Blume, ovary cut open. 
29. A. grandiflora, sp. nova, stamen. (Ovary: see Plate III. fig. 1.) 
30. See above, under Shorea, 
