238 



UMBELLIFERJE. 



24 ACTINOTUS. Tube of calyx contracted at the apex ; limb 

 5-lobed : lobes oval-oblong. Petals wanting. Styles thick- 

 ened and villous at the base. Fruit ovate, crowned by the lobes 

 of the calyx, villous, 5-striped Involucrum of many radiating 

 leaves, which are longer than the flowers. 



25 PETA'ONIA. Flowers dioecious, having the calyxes dif- 

 ferent in the distinct sexes. Styles filiform. Fruit ovate, com- 

 pressed, 8-nerved, vacant inside, 1-seeded. Umbellules 3- 

 flowered : central flower hermaphrodite, sessile : lateral ones male, 

 pedicellate ; pedicels rather concrete at the base, with the calyx 

 of the female flower. 



26 SANI'CULA. Tube of calyx echinated ; lobes foliaceous 

 (f. 59. c.), permanent. Petals connivent, obovate, emarginate, 

 with an inflexed point (f. 59. g.). Fruit nearly globose, echi- 

 nated ; carpophore not distinct. Umbels compound. Leaves 

 of involucrum few, divided ; of the involucel numerous, linear. 



27 HACQUE'TIA. Tube of calyx 10-ribbed ; lobes foliaceous, 

 permanent. Petals obovate, emarginate, with a bent in point. 

 Fruit contracted from the sides ; mericarps gibbously convex ; 

 ribs 5, filiform, with a deep channel on the inside. Involucrum 

 of 5-6 obovate toothed leaves, which are longer than the umbel. 



28 ASTRAN'TIA. Tube of calyx 10-ribbed, tuberculately pli- 

 cate ; lobes 5, foliaceous. Petals erect, connivent, oblong-obo- 

 vate, with an infracted point. Fruit rather compressed from the 

 back ; mericarps with 5 elevated, obtuse, plicately toothed, in- 

 flated ribs, inclosing in the cavity a smaller fistular rib. Car- 

 pophore not distinct. Involucrum variable : involucel of many 

 leaflets. 



29 ALEPI'DEA. Tube of calyx minutely tubercular. Petals 

 inflexed. Mericarps without ribs, and without vittae. Carpo- 

 phore adnate the whole length of the seeds. Habit of Eryngium, 

 but the umbels are like those of Astraniia. 



30 HORSFIE'LDIA. Margin of calyx quite entire. Petals 

 ovate, cuspidate, flat. Fruit compressed, villous ; mericarps 3- 

 ribbed on the back. A prickly shrub. Umbels capitate, ses- 

 sile ; receptacle chaffy. Involucrum of many leaves. 



31 ERY'NGIUM. Tube of calyx rough from scales or vesi- 

 cles ; lobes foliaceous. Petals erect, connivent, oblong-obovate, 

 emarginate, with an infracted point. Fruit obovate, scaly, or 

 tubercular ; mericarps semi-terete, without ribs, and without 

 vittae; carpophore adnate its whole length to the seeds. Flowers 

 crowded into dense heads ; the lower bracteas forming an invo- 

 lucrum to them. 



32 ACTINA'NTHUS. Flowers monoecious : female ones capi- 

 tate : male ones in capitate umbels, with the receptacle destitute 

 of paleae. Teeth of calyx permanent. Petals oblong, compli- 

 cated at the apex, and rather cirrhose. Fruit compressed from 

 the sides ; mericarps with 5 alternate, stronger, sutural ribs ; 

 vittse 1 in each furrow, and 2 in the commissure. Carpophore 

 adnate. Involucra wanting ; involucels of many leaves. 



2. Umbels compound or perfect. Vittae on the fruit va- 

 riable, rarely wanting. 



* Fruit having only primary ribs present. 



TRIBE IV. 



AMMI'NE. Fruit compressed from the sides or didymous; meri- 

 carps with 5 filiform ribs, which at length become a little winged : 

 lateral ones marginating, all equal. Seeds terete or gibbously 

 convex, flaltish in front. 



33 RU'MIA. Margin of calyx 5-toothed. Petals ovate, en- 

 tire, with a short, coarctate, incurved point. Fruit roundish or 

 ovate, plicately wrinkled ; mericarps solid, with 5 thick, very 

 obtuse, twisted plicate ribs, covering the furrows, which are 

 ornamented with plicate tubercles, and furnished with 1 vittae 

 each. Carpophore bipartite. Involucrum wanting or few- 

 leaved ; involucels of 3-8 leaves. Flowers yellow. 



34 CICU'TA. Margin of calyx 5-toothed, foliaceous. Petals 

 obcordate, with an inflexed point. Fruit roundish, contracted 

 from the sides ; mericarps with 5 flattish ribs, having the furrows 

 between the ribs furnished with 1 vittao each, and the commis- 

 sure 2 vittae ; vittae filling the furrows, a little more elevated 

 than the ribs, all concealed under a loose membrane. Carpophore 

 bipartite. Involucrum wanting, or few leaved ; involucels of 

 many leaves. 



35 ZI'ZIA. Margin of calyx obsolete, or with 5 very short 

 teeth. Petals elliptic, tapering into a long inflexed acumen. 

 Fruit contracted from the sides, roundish or oval ; ribs filiform, 

 rather prominent ; furrows furnished with 1 vittae each, and the 

 commissure with 2 ; carpophore bipartite. Involucrum wanting; 

 Involucel of few leaves, variable. Flowers yellow, rarely white 

 or dark purple. 



36 PENTACRY'PTA. Calyx unknown. Petals equal, lanceo- 

 late, with an inflexed point. Fruit oblong-elliptic ; the 3 dorsal 

 ribs elevated, acute ; furrows furnished with 1 vitta each. Al- 

 bumen with 5 roundish angles. Flowers polygamous, dark 

 purple. 



37 A'PIUM. Margin of calyx obsolete. Petals roundish, 

 entire. Stylopodium depressed. Fruit roundish, contracted from 

 the sides ; ribs filiform ; furrows furnished with 1 vitta : outer 

 ones with 2-3 vittae. Carpophore undivided. Involucrum and 

 involucel wanting. Flowers greenish white. 



38 PETROSELI'NUM. Margin of calyx obsolete. Petals 

 roundish, incurved, hardly emarginate, with an inflexed point at 

 the apex. Stylopodium short, conical, subcrenulated. Styles 

 diverging. Fruit ovate, contracted from the sides ; ribs filiform ; 

 furrows furnished with 1 vitta each, and the commissure with 2. 

 Carpophore bipartite. Involucrum few-leaved, and the invo- 

 lucel of many leaves. Flowers white or greenish. 



39 WEYDLE'RIA. Margin of calyx obsolete (f. 60. a.). Petals 

 ovate-lanceolate, entire, with an incurved point (f. 60. c.). Fruit 

 ovate, crowned by the short Stylopodium and reflexed styles 

 (f. 60. 6.). Mericarps somewhat semi-terete, with contracted 

 margins ; ribs filiform, bluntish ; furrows broad, furnished with 

 1 vitta each, and the commissure with 2. Involucrum wanting, 

 or of 1 leaf; involucel of many leaves. Flowers white. 



40 TRI'NIA. Margin of calyx obsolete. Flowers usually 

 dioecious from abortion. Petals of the male flowers lanceolate, 



