260 The Philippine Journal of Science 1920 
ROSA PHILIPPINENSIS sp. nov. § Synstylae. 
Rosa multiflora Vidal Rev. Pl. Vasc. Filip. (1886) 123; Merr. in 
Philip. Journ. Sci. 5 (1910) Bot. 352, non Thunb. 
Frutex suberectus vel scandens, 1 ad 4 m altus, ramis parce 
aculeatis, ramulis perspicue capitato- glandulosis; foliis 5- ad 
9-foliolatis, 9 ad 12 cm longis, glabris, foliolis chartaceis, 
oblongo-ellipticis ad oblongo-ovatis, 3 ad 5 cm longis, serratis, 
plerumque acutis; stipulis adnatis, angustis, haud pectinatis, 
margine capitato-glandulosis; floribus numerosis, paniculatis, 3 
ad 3.5 em diametro, pedicellis calycibusque extus leviter hirsutis 
atque capitato-glandulosis, lobis oblongo-lanceolatis, caudato- 
acuminatis, usque ad 12 mm longis, intus cinereo-villosis, mar- 
gine plerumque integris vel lobis angustis 1 vel 2 utrinque 
instructis; stylis connatis, hirsutis, circiter 5 mm longis. 
A suberect or more or less scandent shrub, 1 to 4 m in height, 
nearly glabrous. Branches armed with scattered, stout, recurved 
spines about 4 mm in length, the branchlets conspicuously 
capitate-glandular as are the inflorescences and calyces. Leaves 
5- to 9-foliolate, glabrous, 9 to 12 cm long, the rachis sparingly 
aculeate; leaflets chartaceous, oblong-elliptic to oblong-ovate, 
mostly acute, 3 to 5 cm long, sharply serrate; stipules adnate, 
scarcely pectinate, narrow, their margins capitate-glandular, 
the linear, free, apical parts 3 mm long or less. Panicles ter- 
minal, ample, somewhat leafy, many-flowered, up to’ 20 cm in 
length, all parts capitate-glandular, the pedicels 2.5 to 4 cm long. 
Flowers white, 3 to 3.5 cm in diameter. Calyx-tube somewhat 
pubescent, glandular-capitate, about 5 mm long, the lobes oblong- 
lanceolate, caudate-acuminate, up to 12 mm long, pubescent and 
capitate-glandular outside, inside densely cinereous-pubescent, 
caudate-acuminate, entire or with one or two narrow lobes on 
each side. Petals obovate, retuse. Stamens indefinite. ' Styles 
hirsute, connate, about 5 mm long. 
Luzon, Benguet Subprovince, Baguio and vicinity, Elmer 
5794 (type), Merrill Phil. Pl. 882, Bur. Sci. 2519, 4290 Mearns, 
Sandkuhl 371, Santos 14: Bontoc Subprovince, Vanoverbergh 
50. In thickets, gulches, etc., in the pine region, altitude 1,200 
to 1,700 meters. 
This species has long been confused with Rosa multiflora 
Thunb., the typical form of which is apparently confined to 
Japan and Korea. A more critical examination of the Philip- 
pine material than has hitherto been made shows that this form 
is distinguishable from Thunberg’s species in numerous charac- 
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