XXXV. UMBELLIFERA. 177 
35 { Fruit globular, not separating into two . ; ; 56. CORIANDRUM. 
Fruit separating into 2 small ‘globular earpels ... , 7. SISON. 
( Fruit of 2 little, globular, bladder- like lobes or car pels | 34, PHYSOSPERMUM. 
364 Fruit nearly globular, or broader than long . ; ; , ; 37 
Truit ovoid, or longer than broad . ; : ; ; F 7 ? . 41 
37 { Partial involucre of several bracts . ; : F : ‘ : ; , . 38 
No involucres . 40 
38 { Flowers of a yellowish green. Ribs of the fruit acute, almost winged 19. “ SILAUS. 
Flowers white. Ribs of the carpels obtuse, or crisped, or not prominent 39 
39 { Calyx-teeth appearing above the fruit. Leaf-segments narrow . . 6 CICUTA. 
Calyx-teeth not conspicuous. lLeaf-segments numerous, small. 33. CONIUM. 
Stem erect, not much branched. Leaves pinnately divided, with ovate, 
40 lanceolate, or linear segments : . 12. PIMPINELLA. 
Stem short, with spreading stiff branches. Leaves ‘ternately divided, with 
subulate segments . : .. 8% LRA. 
Leaf-segments divided into numerous subulate lobes, not above 2 lines long, 
4t in opposite clusters, appearing whorled along the common stalk : . 42 
Leaf-segments oblong- lanceolate or linear, and flat : } ; . 43 
Common stalk of the leaf simple. Fruit not above 2 lines ‘long. 
io 10. CARUM verticillatwm. 
Common stalk branched. Fruit 3 or 4 lines long L ; F . 20. MEUM. 
43 { Rootstock a globular tuber . i ; : : ; i } : : . 44 
Rootstock or rcot not tuberous . ‘ F } ; : : : 45 
Styles closely reflected on the fruit. Ribs of the fruit prominent. Vittas 
Ad single . : : ; : ; : : F 10. CARUM Bulbocastanum. 
‘ Styles erect. Ribs of the fruit scarcely visible. Vittas several to each 
interstice . : : ; : ; ; 29. CONOPODIUM. 
Umbels of 3 to 5 very unequal rays ‘ . 10. CARUM segetwm. 
45 Umbels of 7 to 10 rather unequal rays. Calyx- teeth not conspicuous. 
10. CARUM Carvi. 
Umbels of 10 to 20 rays. Calyx-teeth prominent ; : Ba Rid ee 
46 Fruit i0 lines to above aninch long . ’ : ‘ ‘ : 5 . 47 
Fruit not above half an inch long . : 48 
47 { Fruit thick, with prominent angles or ribs the w hole length ; 28, MYRRHIS. 
Fruit slightly ribbed at the base, with a long smooth beak . 27. SCANDIX. 
48 { Fruits mostly sessile or neers SO. é 14, GENANTHE. 
Fruits all pedicellate : : . 30. ‘CH@ROPHYLLUM. 
Besides the species here aces dite majus, a common Continental 
roadside plant, with erect branching stems, finely cut leaves, a small 
fruit like that of Apiwwm, but with an involucre of a few slender, pinnate 
bracts, like the Carrot, has established itself on the banks of the Severn, 
near Gloucester. | Very lately the Milk Parsley of northern and middle 
Kurope, Selinwm carutfolium, Linn., has been found in damp woods in 
North Lincoln and Cambridge, but it is extremely rare and possibly not 
indigenous ; it is closely allied to the Lovage, but the leaflets are narrow 
and the seed convex on both surfaces. | 
I. HYDROCOTYLE. PENNY-WORT. 
_ Herbs, mostly aquatic, with leaves often peltate. Flowers in a small 
simple head or umbel, or in 2 or more whorls, one above the other. 
Petals ovate, valvate in the bud in the British species, but not in all 
exotic ones. Fruit laterally compressed, the carpels flat, nearly orbicular, 
placed edge to edge, with one prominent rib on each side, and without 
any prominent calycine teeth. 
_ A-yather large genus, spread over the greater part of the elobe, and, 
notwithstanding some rather anomalous South African and Australian 
species, known as well by its foliage and inflorescence as by its fruit. 
1. H. vulgaris, Linn. (fig. 398). Marsh Penny-wort, White-rot.—The 
perennial slender stem creeps along the wet mud, or even floats in 
water, rooting at every node, and emitting from the same point small 
M 
