AMMIACEAE. 



VOL. II. 



3. Zizia cordata (Walt.) DC. Heart- 

 leaved Alexanders. Fig. 3140. 



Smyrnium cordatum Walt. Fl. Car. 114. 1788. 

 Zizia cordata DC. Prodr. 4: 100. 1830. 



Thaspium trifoliatum van apterum A. Gray, 

 Man. Ed. 2, 156. 1856. 



Stout, erect, branched, glabrous, or some- 

 what pubescent, 2-3 high. Basal and 

 lower leaves long-petioled, broadly ovate, 

 or orbicular, undivided, deeply cordate at 

 the base, sometimes 6' long, crenate all 

 around ; stem-leaves shorter-petioled, ter- 

 nate, or rarely quinate, the segments ovate, 

 or oval, crenate, or lobed ; rays of the 

 umbel 7-16, ascending, i'-2 r long; fruit 

 ovate, or oval, about ij" long and i" wide. 



In woods, Rhode Islamd to Minnesota, Al- 

 berta, Georgia, Missouri, Colorado and Oregon. 

 Ascends to 3500 ft. in Virginia. May-June. 



26. APIUM [Tourn.] L. Sp. PI. 264. 1753. 



[PETROSELINUM Hoffm. Gen. Umb. 78, 177. 1814.] 



Annual or biennial herbs, with i-3-pinnate leaves, and yellow or yellowish flowers in 

 compound umbels. Calyx-teeth obsolete. Stylopodium short-conic. Fruit ovate; carpels 

 with 5 filiform ribs; oil-tubes solitary in the intervals, 2 on the commissural side. [Latin, 

 parsley.] 



A genus of 5 European species, the following typical. 



i. Apium Petroselinum L. Common or Garden Parsley. Ache. Fig. 3141. 



Apium Petroselinum L. Sp. PI. 264. 1753. 

 Petroselinum hortense Hoffm. Gen. Umb. 



163. 1814. 

 Petroselinum sativum Hoffm. Gen. Umb. 



177. 1814. 

 Petroselinum Petroselinum Karst. Deutsch. 



Fl. 831. 1882. 



Erect, usually biennial, i-3 high, 

 much branched, glabrous. Leaves bi- 

 pinnate, triangular in outline, the seg- 

 ments ovate, dentate, or incised, or 

 those of the upper leaves linear-oblong 

 and entire ; umbels peduncled, i'-2i' 

 broad 1 , axillary and terminal, 15-20- 

 rayed; rays s"-i2" long; pedicels about 

 li" long; involucre of 2-4 linear bracts; 

 bractlets of the involucels subulate ; 

 flowers greenish yellow ; fruit ovate, 

 glabrous, about 2" long, the ribs rather 

 prominent when dry. 



Maryland to Ontario, escaped from cul- 

 tivation. Introduced from Europe. Na- 

 tive of the Mediterranean region. Leaves 

 of some cultivated races crisped. Summer. 



27. FOENICULUM Mill. Card. Diet. Abr. Ed. 4. 1754. 



Erect biennial or perennial glabrous herbs, with pinnately decompound leaves, the seg- 

 ments linear or capillary, and compound umbels of yellow flowers. Involucre and involucels 

 none. Calyx-teeth obsolete. Petals obtuse or slightly retuse at the apex. Stylopodium 

 large, conic. Fruit linear-oblong, glabrous, terete or nearly so. Carpels half-terete, dorsally 

 flattened, prominently ribbed ; oil-tubes solitary in the intervals. Seed- face flat, or slightly 

 concave. [Latin, diminutive of foenum, hay, from its odor.] 



About 4 species, natives of the Old World, the following typical. 



