LVI, UMBELLIFER.F. 337) 
- Umbelli ifer which | have been unable to match precisely, although they much resemble 
he above-mentioned Sium angusti tfolium, Linn 
l. HYDROCOTYLE, Linn. 
yx-teeth Eae or inconspicuous. Petals entire, acute, valvate or. 
S o E with a raised annular or Boegen ped margin it 
- ‘Tooting at the nodes or erect and annual. Leaves either orbicular, peltate 
or deeply cordate and entire or divided, or cuneate at the base and divided. 
Stipules E pw toothed or jagg ged, zen A in the annual species 
E Flowers ts small, sometimes unisexual, in simple u mbels or also verticillate on 
| the peduncle Gen the terminal umbel, white or rarely purplis 
f The genus is dis ispersed over the warm iau — regions of the globes most fre- 
| quent in moist situations or floating in wa ^g e tralian species two sys a 
wide range ove er the New as well as the "n World, grey is ed in New Zealand aud per- 
E some other countries, the remainder are endemic 
| NI. Euhydro cotyle. ges GE in H. seta) orbicular and peltat. 
aps e iA or divided to the base into 8, 5 or more segments. Petals valvate. Car. 
pels with the interm See ae Pa E on soë" bos or rarely with the lateral 
| "es also distinct aud p 
| creeping D a pe at the lower joints. Carpo- 
phore deciduous with the carpels. 
Fruits an or less di eme the carpels couvex on the sides, 
real ed 
Bes SN een? attached by the centre 
r reniform-cordate with a deep sinus s at the 
o of the petiole, crenate or lobed but not divided 
— 
. H. vulgaris. 
Fruits nearly sessile in the head. | 
mall densely-matted plant.. Stipules imbricated on the 
den flowering branches . 2. H. peduncularis, 
SEN „Plants with distinct flowering nodes. Stipules . j 
ricate . 3. H. hirta 
Fnit dis En Pedicellate i in the umbel. 
1 
endiug or erect. Leaves more or 7 
less | e and lot * ruit ] liue broad . .. 4. H, laziffora. 
Plowering-stems slender and diffuse. Leaves g - or 
r 
; dei y lobed. Fruit $ line broad oa ond eng e KE Sieden 
e eeng to the ase into 8 = TIR RE 6. H. tripart 
» Striate, the. ed the quens acute, e se- z 
Y ribs slightly erneiere Plant glabrous . `- 7. H. plebeia. 
Very flat, the dorsal Seet of the carpels acute or winged. 
beia 
with the dorsal edge acute but not winged . .c.od. H. ple 
with the dorsal as expanded into a wing . - - 8 H. PM 
i n 
| E 
