158 UMBELLIFER&. (PARSLEY FAMILY.) 
* * Umbels capitate (flower sessile). 
8. SANICULA. Fruit bristly, globular. Flowers polygamous. Involucel none. 
4. ERYNGIUM. Fruit scaly, turbinate. Flowers perfect, bracted. Heads involucelled. 
* * * Umbels compound (flowers pedicelled). 
+ Fruit with bristly ribs ; the bristles in a single row. 
5. DAUCUS. Fruit 9-ribbed. Leaves finely 2-3-pinnate. 
+ + Fruit smooth or slightly roughened. 
+ Fruit wingless, laterally comp: , or twin. 
CICUTA. Flowers white. Fruit subglobose. Calyx-limb 5-toothed. 
CRYPTOTZENIA. Flowers white. Fruit oblong. Calyx-limb obsolete. Divisions of the 
leaves lanceolate. 
8. LEPTOCAULIS. Flowers white. Fruit ovate, rough. Calyx-limb obsolete. Divisions 
of the leaves filiform. 
9. DISCOPLEURA. Flowers white. Fruit ovoid. Calyx-limb 5-toothed. Divisions of the 
. leaves filiform. x 
10. HELOSCIADIUM. Flowers white. Fruit oblong. Calyx-limb obsolete. Involuere 1-3- 
leaved, or none. : i 
ll. SIUM. Flowers white. Fruit globose. Calyx-teeth minute or none. Involucre 5-6 
leaved. Leaves pinnate. : * 
12. BUPLEURUM. Flowers yellow. Fruit ovoid-oblong. Leaves simple. 
18. ZIZIA. Flowers yellow. Fruit ovoid-oblong; the intervals with 3 vittze. 
14. THASPIUM. Flowers yellow or dark purple. Fruitovoid or oblong ; the intervals with 
single vittæ. 
15. LIGUSTICUM. Flowers white. Fruit elliptical, with several vittæ in each interval. 
pu 
++ ++ Fruit dorsally compressed, winged on the margins. 
= Margins of the fruit double-winged. Flowers white. Leaves pinnately compound. 
16. ANGELICA. Carpels 3-ribbed on the back ; the intervals with single vittze. 
17. ARCHANGELICA. Carpels 3-ribbed on the back; the intervals with 2 or more vittze 
18. CONIOSELINUM. Carpels 3-winged on the back; the intervals with 2 - 3 vittse. 
= = Margins of the fruit single-winged. 
19. TIEDEMANNIA. Fruit broadly winged. Marginal wings remote from the 3 dorsal ones. 
Leaves simple, terete. 
20. ARCHEMORA. Fruit asin No. 19. Leaves pinnate or ternate. uy 
21. HERACLEUM. Fruit with all the ribs equidistant. Marginal flowers sterile. Plant p. 
woolly. : 
$2. Inner face of the seed concave. 
22. CHZEROPHYLLUM. Fruit linear-oblong, narrowed towards the apex. 
23. OSMORRHIZA. Fruit linear-clavate, narrowed towards the base. 
1 HYDROCOTYLE, Tourn. Mansu PENNYWORT. 
Calyx-teeth obsolete. Petals not incurved. Fruit laterally compressed, OF 
bicular. Carpels 5-ribbed, the dorsal and lateral ones often obsolete, the inte — 
mediate ones enlarged. Vitte none. — Low marsh herbs, with slender creep- 
ing stems, and peltate or reniform leaves, Umbels small, axillary. Flowers — 
white. 
1. H. Americana, L. Smooth; leaves orbieular-reniform, crenately 7 
lobed ; umbels sessile, 3-5-flowered ; fruit 9-ribbed. — Mountains of North 
a 
