VOL. II.] 



CARROT FAMILY. 



533 



33. APIUM L. Sp. PI. 264. 1753. 



Annual or perennial glabrous herbs, with pinnate or pinnately compound leaves, and 

 white or greenish-yellow flowers in compound umbels. Involucre and involucels present in 

 some species, wanting in others. Calyx-teeth obsolete. Petals ovate, mostly inflexed at 

 the apex. Stylopodium depressed, or short-conic. Fruit ovate, or broader than long, smooth, 

 or tuberculate. Carpels mostly with prominent ribs, somewhat 5-angled; oil-tubes mostly 

 solitary in the intervals, 2 on the commissural side. Seed terete, or nearly so. [Latin name 

 of these or some similar plants. ] 



About 15 species, of wide geographic distribution. Besides the following, 2 or 3 others occur 

 in the southern and western United States. 



Leaf-segments broad. 



Flowers yellow. 



Flowers white. 

 Leaf-segments very narrow. 



1. A. Petroselinum. 



2. A. graveolens. 



3. A. leptophyllum. 



i. Apium Petroselinum L,. Common or Garden Parsley. 



(Fig. 2687.) 

 Apium Petroselinum L. Sp. PI. 264. 



1753- 



Petroselinum sativum Hoffm. Gen. Umb. 

 177. 1814. 



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 / -2^ / 

 broad, axillary and terminal, 15-20- 

 rayed; rays 5 // -i2 // long; pedicels 

 about \ l /t /f long; involucre of 2-4 

 linear bracts; bractlets of the involu- 

 cels 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 forms crisped. 

 Summer. 



Ache. 



2. Apium graveolens L,. Celery. 

 Smallage. (Fig. 2688.) 



Apium graveolens L. Sp. PI. 264. 1753. 



Glabrous, stem erect, i-3 high, several- 

 leaved. Leaves pinnate, the basal and 

 lower ones long-petioled, the upper short- 

 petioled, or nearly sessile; leaf- segments 3 

 or 5, stalked, or sessile, thin, broadly ovate 

 to oval, coarsely toothed and often incised; 

 ft'-iW long; umbels opposite the leaves, 

 and terminal, 3~7-rayed; involucre and in- 

 volucels small, or none; flowers very small, 

 white, very short-pedicelled; fruit oval, 

 scarcely l /t ff long, the ribs somewhat 

 winged; oil-tubes mostly solitary in the 

 intervals and 2 on the commissural side. 



In waste places, escaped from cultivation 

 in southeastern Virginia, and naturalized in 

 salt marshes on the coast of California. Also 

 in ballast about the seaports. Native of Eu- 

 rope. Old English names Ache, Marsh Par- 

 sley, Mile. May-July. 



