980 AMMIACEAE 
Petals yellow or rarely purple. Fruit longer than wide: carpels with winged 
ribs and oil-tubes solitary in the intervals.—Only the following species known.— 
Sum.—MEADOW-PARSNIPS. 
Petal- Dm ls than 1 mm. long: leaves with ternate blades: leaflets relatively 
thick, 1. T. trifoliatum. 
Petal- blades. o. a 1 long: leaves with biternate blades: 
leaflets relatively "thin. incised or lobed. 
Peduncles and umbel- rays glabrous, except at the nodes, or 
mer UE PUE fruits, between the wings, glabrous, 
5-6 mm. long: leaves 1-2 ternate. 2. T. barbinode. 
Peduncle Eu umbel-rays Sabre ns pubescent: fruits, be- 
tw the wings, D d pubescent, 4-5 mm, 
jon: Sioa res 2-3-te 
Blades ‘of the leaflets eee divided, the ultimate a 
ments or teeth of an ovate type: styles about 2 m 
long: petals about 1.5 mm. long. 3. T. Chapmanii. 
Blades of the leafiets finely divided, the ultimate seg- 
ments or teeth of a lanceolate type: styles about 1 
mm. long: petals about 1 mm. long. 4. T. pinnatifidum. 
1. T. trifoliatum (L.) A. Gray. Stem 2-7 dm. tall, sparingly branched, often 
zigzag: leaf-blades various, those of the basal or lower stem-leaves ovate and 
undivided or 3-foliolate; segments ovate to 
senio) serrate; petioles slender, often 
longer than the blades: upper stem-leaves 
similar to the divided basal leaves; petioles 
r 
ength: conos dark- pe ae an in 
T. trifoliatum aureum): fruit 
long, the ribs prominently w Bon Mae 
MEADOW-PARSNIP.)— Woods, bluffs, stream- 
banks, and sunny slopes, various provinces, 
Fla. i Miss., Wyo., Ill., and R. I.—Sum 
T. o arena Nutt. Stem 3-12 
; leaflets 
eoarsely cut; ultimate segments ne those of the upper leaves mostly 3- z 
em. long, coarsely toothed: mature umbels 3—6 cm. jar d about 3 m 
vide, pale- or light-yellow: fruit el ed or oval, vndis long, e Do 
us qam wider than the dorsal —A for with pinnatifid leaf- 
segments grows in Ala.—Wooded hillsides a streams- wm various pus inces, 
rarely Coastal Plain, Ga. to Miss., Kans., Ont., and N. Y.— pr. sum. 
3. T. Meuse ue (C. & R.) Small. Stem 8-15 dm. tall, often much-branched, 
pubeseent at the nodes and sometimes sparingly so along the internodes: leaf- 
blades 2— P A leafle ts much eut; ultimate segments r relatively small, those 
of the upper i es mos stly 1-2.5 em. lon , incised-toothed or pinnati e à: mature 
umbels 2.5—7 vide: eorolla light yellow, fruit elliptic or oval, 4-5 mm 
long, the lateral win s much wider than the dorsal ones.—River- dog's, ot 
and hillsides, ood Plain and Piedmont, Fla. and Ga.—Spr.-sum. 
. T. pinnatifidum (Buckl) A. Gray. Stem 5—12 dm. tall, finely pubescent 
about the nodes and sometimes also along the woods leaf siege bis 
nd w 
3-ternate ; Tents finely cut an ith rn divisions; ultim segm 
small, those of the upper leaves pinnatifid, lobes usually lanceolate Jede 
a nbels 3—4 em. gen bre light i Qs ellipsoid, 3-4 mm. long, all 
ribs narr ms —Woods, hillsides and river-banks, Blue Ridge to 
ee Low Pinas dus to Ky. a nd N. C.—Spr.- 
