156 DR. J. D. HOOKER ON THE FLORAS OF MALAYA 
Nov. Gen. Disepalum, H. f. 
Sepala 2, ampla, ovata, concava, valvata. Petala 4, anguste lineari-spathulata^ incurvo-ascendentia, inter 
se remota, ad marginem tori depressi adnata et persistentia ! Stamina numerosa, multiseriata, con- 
nective apice truncato vix dilatato. Torus latissimus, medio leviter concavus. Carpella 10-15, 
strigosa, stylo brevi conico tereti, stigmate terminally ovulo solitario ? prope basin loculi. Fructus 
deest. — Frutex b-pedalis, glaberrimus, Borneensis, ramis gracilibus. Folia 2^-3^" tonga, bifaria, 
elliptico-obovata v. lanceolata, utrinque angulata, apice caudato-acuminata, creberrime pellucido- 
punctata 
w 
sub V 1 diam.) virides. 
1. Disepalum anomalttm, H. L 
Hab. In insulae Borneo locis humidis depressis prope Sarawak, T. Lobb. 
Of this very remarkable plant, in some respects quite as anomalous as Mupomatia, I have 
only two small specimens. It differs in habit from any Anonaceous plant known to me, 
and approaches Schizandrece in texture and some other respects. The minute punctation 
of the foliage is peculiar ; the stamens and ovaries are typically Anonaceous ; but the two 
valvate sepals, and four organs which appear to represent the petals, are quite unlike any- 
thing else in the Order. Technically it will rank in the tribe Unoneov ; but I know of no 
genus to which it is at all nearly allied. 
Tab. XX. A. fig. 1. flower; 2. the same, cut vertically; 3 and 4. front and back views of stamens; 5. 
magnified. 
Nov. Gen. Sph^kothalamus, H. f. 
Sepala 3, maxima, orbiculata, rigide membranacea, subfoliacea, erecta, imbricata. Petala 6, biseriata, 
Torus globosus. Stamina 
crasse 
vaide numerosa, dense imbricata, obcuneata, connectivo ultra loculos dilatato truncato. Carpella 
numerosa, oblonga, strigosa, stylo brevissimo obtuso ; ovulis 2 ? superpositis, ventralibus. Fructus 
deest. — Frutex 10-pedalis, Borneensis, pulcherrimus . Folia magna, subsessilia, elongato-lineari- 
>errima, 1^-2-pedalia, basi subcordata. apice acuminata. Flores speciosi, 
acuminata 
rubro-aurantiaci, 3" longi. 
1. SPHiEPOTHALAMUS INSIGNIS, H. f. 
■ 
Hab. In sylvis insulae Borneo ora septentrionali, T. Lobb. 
I have seen only a flower, leaf, and coloured drawing of this remarkable and beautiful 
plant. It belongs to the tribe Uvariece, and apparently to the section with more than 
one ovule, and will thus rank near Uvaria itself. The ovaria are very minute indeed ; and I 
have further had great difficulty in analysing them, on account of the dense consistence of 
their walls : these are full of indurated wood-cells above, which it is difficult to discri- 
minate from ovules after both have been dried. 
Tab. XX. B. leaf; and XX. C. flower: fig. 1. outer, and 2. inner petal; 3. torus, with a few of the 
lower series of stamina below, and ovaries at the apex ; 4. stamen ; 5. ovary ; 6. long vertical section 
of the same : all, but 1, 2, and 3, magnified. 
