GENERA AND SPECIES. 
Haloragis. 
1. Calyx-lobes, petals and pistils constantly 2 
( Meionectes ). 
Semiaquatic, glabrous; leaves scattered, pinnatisect ; 
flowers few, axillary 8 : 
11. Calyx-lobes, petals and pistils 4, or rarely 3 
or 2. 
Leaves alternate, the lower ones digitately lobed 
Leaves alternate, narrow-linear, entire. 
Leaves semiterete, rather fleshy; glabrous ; pee 
and ovules 2 or 4; fruit ovoid-globular, smooth.. 
Leaves recurved along the margin; densely hairy ; 
fruit ovoid, rough ; styles and ovules 4 : 
Leaves alternate, linear or lanceolate, toothed or ae 
natifid. 
Fruit ovoid-globular or somewhat quadrangular, 
often rugose or muricate; leaves nearly sessile, 
coarsely toothed ; flowers 1 or 2, axillary 
Fruit acutely 4- cletio, 
Fruit quadrangular, eas the bial sak pecs 
angles with tooth-like excrescences; leaves 
stalked ; flowers clustered 
Fruit Pruicly trigonal, ovate; leaves Batted: re- 
motely serrate, lanceolate. Erect, glabrous 
Fruit winged, 3-celled ; leaves shortly stalked 
Leaves opposite ; flowers solitary, axillary. 
Prostrate, glabrous; bracts minute ; leaves orbicular- 
cordate, closely serrate ; fruit minute, So tet 
prominently 8-nerved 
Erect, scabrous or hirsute ; leaves AneHe: dintiitily 
serrate ; fruit wrinkled and rough, globular- 
quadrangular. 
Leaves ovate- to narrow-lanceolate; upper 
bracts minute 4 xe he bai 
Leaves ovate- to orbicular-cordate ; upper 
bracts larger 
Myriophyllum. 
1. Leaves all entire. 
Leaves alternate, very small, RE et ; stamens 
2 or 4 
Leaves opposite ; santas 8. Shaul; silapind sina snare 
Leaves oblong ; ; fruitlets 4, smooth 4: 
Leaves linear; fruitlets 4, tuberculate ; 
flowers generally stalked 
span sees 
101 
Meionectes 
heterophylla 
digyna 
elata 
aspera 
acutangula 
odontocarpa 
trigonocarpa 
Gossei 
micrantha 
tetragyna 
teucrioides 
integrifolium 
amphibium 
pedunculatum 
