118 The Philippine Journal of Science 1917 
‘binis exterioribus minimis. Receptaculum planum, paleis angus- 
tis scariosis planis oblongis medio lineatis flores ¢ omnes sub- 
tendentibus onustum. Corollae ¢ ligulatae, lamina patente, 
grosse 2-dentata, obovata; ¢ regulares, tubulosae, limbo 4-fido, 
anguste campanulato. Antherae 4, basi obtusae. Styli rami in 
appendices subulatas desinentes. Achenia lineari-oblonga, a 
dorso compressa, leviter incurva utrinque leviter carinata vel- 
costata, haud alata, calva, disco epigyno minuto coronata.—Herba 
perennis glabra, subacaulis, stolonifera, caudice brevissimi. 
Folia ad caudicem vel ad apices ramorum brevissimum conferta, 
_oblongo-ovovata, longe petiolata, apice prominente 3- vel 5- 
dentata, deorsum gradatim angustata, basi cuneata. Capitula 
parvula, in pedunculo scapiformi aphyllo solitaria. Ligulae 
flavae. 
GUERREROIA MONOCEPHALA sp. nov. Plate II. 
Herba subglabra, subacaulis, perennis; foliis numerosis, subro- 
sulatis, longe petiolatis, oblongo-obovatis, 1 ad 2 cm longis, apice 
prominente 3- vel 5-dentatis, rotundato-subtruncatis, deorsum 
cuneatim angustatis ; capitulis solitariis, longe pedunculatis, mul- 
tifloris, 10 ad 12 mm diametro; acheniis anguste oblongis, glabris, 
circiter 4 mm longis. 
A nearly glabrous, perennial, subacaulescent herb, the very 
short caudex woody, thickened, bearing from one to several tufts 
of radiately arranged leaves on the very short stout branches, 
also emitting stolons up to 5 cm in length, each stolon in turn 
bearing a terminal tuft of leaves, the petioles sparingly pilose at 
the very base. Leaves numerous, all subrosulately crowded on 
the very short caudices, their petioles slender, 1.5 to 4 cm in 
length, the blades oblong-obovate, chartaceous to subcoriaceous 
1 to 2 cm long, 5 to 7 mm wide, the subtruncately rounded apex 
prominently 3- or 5-toothed, the teeth triangular, acute, gradually 
. narrowed from the apex to the base, cuneate. Peduncles solitary, 
5 to 10 cm long, each bearing a single head, the heads 10 to 12 
mm in diameter, the outer two bracteoles linear, about 1.5 mm 
long, free, the inner ones 2-seriate, subequal, about 10 in number, 
slightly united at the base, glabrous, oblong, obtuse, about 3 mm > 
long. Ray flowers about 4, yellow, the tube 1.5 mm long, the 
limb broadly obovate, 4 to 4.5 mm long, 3.5 to 4 mm wide, 
prominently 5-nerved, apex coarsely 2-toothed; style slightly ex- 
serted from the tube, the arms 0.5 mm long or less. Achenes 
sterile, flattened, about 1 mm long, sligthly 2-toothed at the apex. 
Paleae subtending the disk flowers flat, oblong, obtuse, 3 mm 
long. Corolla 3 to 3.5 mm long, the tube 2 to 2.5 mm long, 
