360 
XXXVIII. —NEW EUPHORBIACEAE FROM THE 
MALAY PENINSULA. 
H. N. RIDLEY. 
In working out the Euphorbiaceae for the Flora of the Malay 
Peninsula, I find several species as yet undescribed, of these 
I herewith give descriptions. 
Cleistanthus albidiscus Ridl. nov. sp.; affinis C. parvifolio Hk. f 
sed in venatione estat, venis arcuantibus, bracteis hhixtic, 
petalis integris diffe 
Arbor. parva vane Folia lanceolata, acuminata, basibus 
obtusis, tenuiter coriacea, subtus glaucescentia, nervis 10-paribus 
tenuissimis, intra margine arcuantibus, 4-5 em. longa, 2 cm. 
lata; petioli 2 mm. longi vel breviores. ‘Stipulae setaceae basibus 
dilatatis. Flores masculi ignoti. Flores feminei in glomerulis 
bractearum rufarum hirtarum, 1 vel 2, pedicellis filiformibus 
4 mm. longis. Sepala valvata, 3, lanceolata. Petala 3, multo 
majora, ovata, apicibus rotundatis integris, 3mm.longa. Discus 
cylindricus, albus Pap! osus; ovarium glabrum ferme omnino 
tegens. Fructus ignotus 
Terutau Aa "Telok Hudang, Haniff 1069. 
Allied to C. parvifolius Hook. fil., of which only fruiting 
specimens are known. It differs, however, in the venation of 
the leaves, which is not inarching in C. parvifolius, in which the 
nerves break up into small branches before reaching the leaf 
edge. The bracts in the latter are not hairy, and the petals are 
ed. 
Actephila aurantiaca Ridl. nov..sp.; affinis A. javanicae Miq., . 
sed in caule brevi vix ramoso, foliis latis undulatis crenatis, 
floribus aurantiacis differt 
rutex parvus, glaber, bipedalis, Folia tenuiter coriacea, 
obovata vel oblanceolata vel elliptica, breviter obtusa marginibus 
crenulatis, nervis 10-paribus arcuantibus in arcubus latis margin- 
ibus distantibus, reticulationibus latis, 10 ad 17 cm. longa, 
oblonga. ° Petala late obovata, dentieulata. Discus lobis 5 planis, 
capillis albis tectus; ovarium conicum, glabrum. Capsula sub- 
globosa, triloba, 1 em. longa, in pedunculo 2 em. longo. 
Kelantan, on the Kelantan River at Chaning, in woods on 
sandy soil, Ridley. 
Actephilopsis Ridl. nov. gen.; affinis Actephilae Blume, sed ovulis 
in loculis distinguitur. 
Frutex glaber, le exceptis. Folia alterna, elliptica 
cuspidata, marginibus undulatis crenulatis, petiolis brevibus. 
es masculi minuti, pedicellati, in racemis densis brevibus 
axillaribus. Bracteae minutae, ovatae, acutae. Sepala 5, oblonga. 
Petala 5, latiora, paullo longiora. Discus lobis 5 sub-quadratis. 
