100 REVISION OF DRYOBALANOPS AND DIPTEROCARPUS. 
as it were wraps round the axis owing to o- extra 
development of the cotyledons. Prolongations of - ae accompany 
the convolutions of the embryo and blend with the columella, The 
b 
smaller is nearly orbicular and about half an inch in diameter. 
are cordate at the base, and it is therefore possible to makea section (such 
as is drawn in fig. 5) passing through the bases of both cotyledons 
and also the superior radicle. If a section is made rather low down 
it only shows one cotyledon, as in Gertner, t. 186, fig. ¢., and De 
Vriese, Mem., fig. 51. Oudemans has rather insisted upon the constant 
fi an ents 
the fruiting calyx. I have selected the fruits figured in the accom 
panying plate (figs. 1, 2, 3) from a large number in the Kew Museum. 
Each represents a type, and the existence of a deep furrow below e 
segments is hardly more characteristic of the fruits generally 
_its absence. 
1. Ms sna Gaertn. f., \.c.; Baillon, Hist. des PL, ivy 
D amphora, Colebr., Asiat. Res., Fy 535, cum ie; 
Hock, Journ. Bot., 1852, 200, t. 7, A.DC. in De. 
Borneo, Labuan, Motley, 
[Fi ‘ei 1-3, fruits; fig. Ne pron section through torus and 
yx-tube ; fig. 5, transverse section through embry. 
(Ail natural size } | 
Beccarn, Dyer, sp. nov. Arbor; glaberrima; foliis 
oblongo-ellipticis, abrupte acuminatis, basi acutis, costa 
u ‘ 
P q 
cingente, laciniis auctis lineari-spathulatis or 3 
Fo r it i 
utrinsecus crebris; petiolo semipollicari. Panicule ad 6 
icelli ° IL longty 
ong®, yy poll. late. Petala oh pe: 
S' 16 pou ia 
, 2944, pens 
Fig. 6, vertical section Heer the flower ae x 4)—the 
a 
minal tube are shown diagrammatically im § 
Fig. 7, ies (nat. ge) ‘ ie 
- D. optoneironta, Dyer, nov. Arbor; paniculis ) 
sp. > pan 
palveree-puhersite hovellis glaberri rrfatiia « ; foliis oblongis 
festa os acuminatis, basi rotundatis, modice ) 
tis, costa admodum valida supra canaliculata ; panicull 
terminalibus Saini floribus sparsis instructis;_ oaly® 
cok cy oblongia, obtusis, demum glarstity — 
i 
: ; ealycis fructiferi i 
Folia 4- 5 oil is, 14-1} poll. ‘Tata, nervis 
