14 
Fifth class. 
82. Furows and inner face without vittai. Ls 2-ternate 
Aegopodium. 225. 
— Furrows with 1—several vittee, inner face with 2— 
many vittse ........ 83 
83. Yittse clavate. Umbels 3—6-rayed. . . Sison. 223. 
— Vittse not clavate. Umbels 8—40-rayed . . 84: 
84. Lower ls simply pinnatisect with broad, toothed or in¬ 
cised divisions (rarely laciniate) . . Pimpinella. 227- 
— Ls 2—3-pinnatisect with linear lobes . . . 8o 
85. Furrows with several vittse. Carpophore 2-partite. Only 
in Tessin.Ligusticum. 238. 
— Furrows with 1 vitta. Carpophore 2-fid Carum. 226. 
86 (79). Fr. covered with prickles, bristles or hairs 87 
Fr. glabrous (or almost so) . . . . . 93 
87. Beak of the fr. of a different colour Anthriscus. 258. 
— Fr. without beak ....... 88 
88. Fr. surrounded by a thickened, cartilaginous, white border 
Tordylium. 250. 
— Fr. without the cartilaginous white border . . £.9 
89. Fr. almost orbicular (in transverse section), tomentose 
or covered with soft hairs ..... ,9 O 
— Fr. much compressed, with prickles or stiff bristles 91 
90. Fr. ovoid. Lobes of the ls lanceolate Seseli. 234. 
— Fr. linear-lanceolate. L.-lobes linear Athamanta. 237. 
91. Leaflets of the invol. pinnatifid . Daucus. 253. 
— Leaflets of the invol. entire ..... 92 
92. Outer fls with much larger (13—14 mm) pets than those 
of the centre .Orlaya. 252. 
— Outer fls equal to or little differing from the inner 93 
93. Fr. (4—5 mm) thickly covered all over with prickles 
and bristles.Torilis. 256. 
— Fr. (8—14 mm) with prickles in longitudinal rows 94 
94. Secondary ribs equal in height to the primary. Ls 
simply pinnatisect .... Turgenia. 254. 
— Secondary ribs more prominent than the primary. Ls 2—3- 
pinnatisect.Caucalis. 255. 
95 (86). Fr. with a beak at least 3 times as long as the fr. itself 
Scandix. 257. 
— Fr. without a benk, or with one scarcely half its own 
length..96* 
96. Invol. 0, or of 1—2 Is..97 
— Invol. of 3—several ls. 113 
97. Fr. suborbicular or laterally compressed (in transv. 
section) 98 
— Fr. dor sally compressed (parallel to the face of the 
commissure) . . . . . . 109 
98. Ls all simply pinnatisect. Marsh plants 
Helosciadium. 220. 
