188 CXXXIX, ALISMACEX. 
4. APONOGETON, Thunb. 
Flowers hermaphrodite. Perianth of 2 segments one on each side. 
small or in species not Australian petal-like. Stamens usually 6. 
Carpels of the ovary usually 3, with 9 to 6 ovules in each carpel all 
ereet m the base. Seeds ovoid or oblon ng, erect. — e 
with a more or less prominent plumulaina groove on the in ace.— 
y gcn de bim erect or floating or submerged leaves alid oblong 
or narrow, Scapes leafless except a very deciduous membranous braet 
or spatha emis the young "pe but Vp always fallen away 
before the flowering, leaving an annul ar. Flowers sessile in 4 
terminal spike, simple i in the Australian species but divided into two in 
some African and Asiat 
The genu — over — Asia and tropical and southern Africa. Of the m 
Australian species one is mmon Indian one, the other Ap to "be pee t 
The specific cabe divo from the bulb-shaped rhizome may not be consu? 
rd been observed only in a very few dried specimens to n the roots remain 
attached. 
ghe: rootstock sabes with filamentous remains 
Lenses unde aths a se itting roots from the base. 
axe s under 6 ong. Fruit-carpels tapering into 
ee t-carpels tapering 1. A. monostachyws- 
Balb-shaped rootstock without filaments, emitting fibrous 
e apex, Leaves above 6 in. long. Fruit- 
Apes obtuse with the rudimentary stylo almost 
BENE CY HOT (Ud ee . 
9. A. elongatus. 
. A. monostachyus, Linn. f. Suppl. 214.— Rootstock thickened 
into a hard woody bulb-shaped tuber, eordied with filamentous rema n 
of old leaf-sheaths and emitting fibrous roots from the base or low 
half. 
membranous, about 2 line lon men shortly oroesi g t 
r 
see 1 sel 
vsus hyalina, the inner more a ce — coloured and cto 
PA 
geton Sanss e in Hook. Lond. Praten ii. 404, t 
N. Australia. acr ert River, mesg Herbert's 
Queensland. sick hatin Thozet, O Shanesy ; ; Burdekin River, 
Creek and Gainsford, Bowman. The species is widely spread over tropical Asia. 
Muell. in Herb. —Tubero 
rootstock 
elongatus, F. Hook. 
Be below the uppermost fibrous roots and without the "lamentou 
