102 Descriptive Characters of 
the shape of the petals, and with these deciduous. Petals 
sessile, ovate-elliptical, with a blunt not inflexed apex. Sta- 
mens shorter than the petals. Styles divergent, subulate, 
arising from thick stylopodia. Fruit laterally compressed, 
nearly ovate, glabrous. Carpels with five ribs, destitute of 
vitte. Carpophor undivided. 
A genus well defined by the perfect and constant equality 
of calyx and corolla, which unite to form a decapetalous 
flower, a structure without parallel in the wide order to 
which this fine genus belongs. 
The alliance, in other respects, to Xanthosia and Oschatzia 
is obvious. 
11. Dichopetalum ranunculaceum. 
Stemless, prostrate, hispid; root thick; leaves on long pet- 
ioles, nearly round, three- to five-lobed; the lobes inciso- 
crenate; scapes numerous; umbels few-flowered, simple or 
somewhat compound; involucre large, with two or three 
leaflets, which are often connate at the base. 
On wet gravelly places chiefly around the springs in the 
Munyang Mountains. at an altitude from 5000 to 6000 feet. 
Pozoa; Lagasca. 
(Sect. Schizeilema, J. Hooker.) 
12. Pozoa fragosea. 
(Fragosa hydrocotylea, Ferd. Mueller, Coll.) 
Glabrous; rhizome thick, creeping, with numerous long 
fibres; stems very short, prostrate; leaves herbaceous, long- 
petiolate, orbicular-reniform, net-veined, divided scarcely 
to the middle into five to nine crenulate lobes; stipules broad, 
membranous, torn; umbels sessile on the base of the petiole, 
or pedunculate, capitate, generally many-flowered; leaflets of 
the involucre five to eight, connate, lanceolate, with a few 
setaceous lobes; teeth of the calyx deltoid-ovate, somewhat 
acuminate, nearly acute ; petals greenish; carpels ovate, com- 
pressed on the back, with five hardly prominent ribs, strongly 
contracted at the axis. 
Under the shade of rocks on the highest tops of the 
Munyang Mountains, but of rare occurrence; 6000 feet. 
I assigned to this plant a place in the genus Pozoa, on 
account of the great resemblance with Pozoa reniformis, P. 
