338 LVI. UMBELLIFERJE. (Hydrocotyle. 
— — to E Zeg or nearly so into lanceolate seg- 
els n ged . 9. H. geraniifolia. 
Small or e ere a or diffuse p not rooting at the joints. 
arpophore persistent or deci 
rpophore 
Fruits beer than long, more rhe s didymous with 2 (inter- 
: mediate) ribs on mc? side, the istered ribs not distinct from 
he narrow commissure. ' 
Wen with the ribs very prominent, forming 6 thick obtuse d 
to the fruit, the intermediate ones not much curved. 10. H. medicagino des. 
Froits ih the interme diate ribs semicircular, enclosing a pit 
or inner 
Dorsal rib winged «. . «rt n . 11. H. muriculata. 
Fruit not winged. 
Fruit smooth or scarcely Ap outside the rib. 
Leaves nearly divided to the base. iem enn ribs 
of the fruit very obtuse, enclosing a small pit UE p callicarpa. 
Leaves not divided to the middle. Semicironlar 1 ribs 
of the fruit acute, sudosing a broad disk 13. H. sculellifera. 
it granular or muricate wens the ribs. 
Fruit about 4 line broad . . . 14. H. hispidula. 
Fruit nearly 1 line broad, very didymous 18 M i trachycarpa. 
Fruit transversely rugose, forming 1 or 2 rows of little 
Aog outside the semicircular ribs. 
Pits several in 1 or 2 row 
€ of 3 to 6 in., often hirsute. Fruit 1 line 
pu: 16. i. wx? 
Plan of 1 to in., ; glabrous. Fruit ł line broad . and 
ts 9, lans 4 to each c vm 8. H. vier 
Fruits nid than ee, very flat, with 4 e apparent y 6 ri 
on each side (the lateral ribs distin net from the commissure an ; 
the dorsal rib very thick, so as to be prominent on nn Get 19. H. diantha. - 
Fruits ovate or not broader than long, st early p 
— ES = each side (the lateral a KC apes the 
com 
Leaves biian bordeie or reniform. 
Stems T g and - nder. Umbels 6- to 10-flowered — . Q. H. gram" 
ms ti f ^ 
Cae ge, ing, leafy m very short. Umbels 3- to 21. E in noides. 
lin {tangata hastate or - acutel 5-lobed. ` Stems erect | 
or shortly d . 99. H. alata. & 
Fruit "uni tetragonous (the lateral ribs forming one p 
nent angle at er De rib roninet . 
the intermediate ones inconspicuous) F . 93. H. tetragonocarp: 
Section II. M Des. Se in T ssiation) e at the base 0r m 
Petals C 
Small a Leaves cuneate at the base, toothed or 3 partite. 
Leave si. toothed. Flowers in dense heads. Fruits diy alt, 
hidiate. Plant of 1 to 14 in 24. H. glochi 
dens artite. Flow 3 its 
ae ree AR ers in loose umbels. Fruit very ' os. H. verticillata». 
PEE Gg, and rooting. at "the nodes. Leaves broa 
ate. Carpophore deciduous with the fruit. Frui ipe lied: 
several.ribbed (the secondary ribs sometimes Gin , +96, H. em 
7 eg Muelleri has the habit and stipules of a Hydrocotyle, but the fruit i3 
mpressed, furrowed at the pas mag and the calyx-teeth very eg at.) 
Kai 
