526 UMBELLIFERZ (Sond.) [ Hydrocotyle. 
9. SMYRNEZ: Fruit turgid, often laterally compressed. 
Ribs sometimes obliterated :—(XXXIII.—XXXV.) 
Dicecious. Fruit adnate to a large, spinous involucre 33, Aretopus. 
Fruit not involucrate. 
Fruit sub-compressed dorsally ; dorsal ribs wing- 
less, lateral very small in the commisure. Fur- r 
rows multi-vittate ... .. 984, Hermas. = 
Fruit ovate, laterally compressed ; “yibs eB. “equal, = 
undulato-crenate. Furrows without vittee . ... 85, Conium, ~~ 
Sub-Order I. Ontnosperme®. DC. Prodr. 4, 58. Albumen flat on 
the inner side ; neither involute nor convolute. (Gen. I—XXXI.) 
I. HYDROCOTYLE, Tourn. 
Calyx-tube subcompressed, limb with an obsolete margin. Petals 
ovate, entire, acute, with a straight apex. Fruit flatly compressed 
from the sides, bi-scutate. Mericarps without vittae ; the 5 ribs nearly 
filiform, the carinal and lateral ones usually obsolete, and the 2 inter- 
mediate ones joined. Seed carinately compressed. Endl. gen. N. 4355+ 
Usually slender, bog herbs, rarely subshrubs. Flowers sessile or pedicellate, 
white. Umbel usually 3-flowered but monocarpous, 2 of the flowers being sterile. 
Involucre in anthesis 4-leaved, but when fruit-bearing 2-leaved. Name from ddwp, 
water, and KoTvAn, a cavity, in reference to the plants growing in moist situations, 
and to the leaves often being hollowed like a bowl. 
ANALYSIS OF THE SOUTH AFRICAN SPECIES. 
Leaves peltate : 
peduncles bearing interrupted whorls of flowers ...__ (1) verticillata. 
peduncles bearing a terminal umbel ... (2) Bonariensis. 
Leaves cordate or orbicularly reniform (not peltate) : 
‘ umbels with 3-4 fertile flowers... we Ve ol. (3) Asiatioa. 
umbels with 1 fertile flower (monocarpous) 
Leaves oe reniform : 
oa ah labrous ; leaves crenately Wore 
ly beneath .. (4) eriantha. 
nes glabrous ; leaves -sharp-toothed, els 
brous... ioe (5) calliodus. 
stem and leaves villous ... (6) flexuosa. 
___ Leaves 3-7 toothed or angled, cordate, st subreni- 
form, as well as the stem villous... (7) hederaefolia. 
Leaves lanceolate, ovate, or Seva (not cordate), 
_ Leaves not toothed or lo 
3 Ivs. Gite nr silicate nesies wal op De ee 
villous (8) villosa. 
< lys. oval, oblong or lanceolate, acute or r acuminate 
at both ends, 3-nerved, with the stem meron ; 
or subtomentose ... (15) Centella. 
lvs. linear-lanceolate, attenuate at the base, - 
‘ Ion see aetase ape: quite glabrous ae (18) = inne 
pple toothed or lobed : a2 Cee 
Inyolucre of fruit 4-6 leaved 
+ stem short, with the leaves tomentose ; leaves 
obovate-cuneiform, bluntish, 7-toothed ... (9) Solandra. 
stem elongate, with the leaves villous-tomen- 
tose ; leaves oblong-cuneate, 9~11-toothed hermannisefolia. 
stem short with the leaves vill omentone es 
leaves narrow-cuneiform, 3-dentate . (14) tridentata. 
