AMMIACEAE. 



275 



.1. Pctrosclinum 

 A. ptrcgrinum. 



4. APIUM [Tourn.J L. 

 Annual or biennial herbs, with 1-3-pinnate leaves, and yellow or yellowish 

 flowers in compound umbels. Caiyx-teeth obsolete. Stylopodium short-conic. 

 Fruit ovate. Carpels with 5 filiform ribs. Oil-tubes sohtary in the intervals, 

 2 on the commissural side. A genus of 5 European species. Type species: 

 Apium Petroselinum L. 



Segments of basal leaves cuneate-obovate, deeply incised. 

 Segments of basal leaves rhombic-obovate, dentate. 



1. Apium Petroselinum 



L. Parsley. (Fig. 297.) 

 Usually biennial, l°-3° high, 

 glabrous. Leaves bipinnate, 

 the segments ovate to cune- 

 ate-obovate, incised, or those 

 of the upper leaves linear- 

 oblong and entire; umbels 

 peduncled, l'-2^' broad, 15- 

 20-rayed; pedicels about lA" 

 long ; involucre of 2-4 linear 

 bracts; bractlets of the in- 

 volucels subulate ; flowers 

 yellow; fruit glabrous, about 

 2" long, the ribs prominent. 

 {Petroselinu m sat i vu m 

 Hoffm. ; P. hortense Hofi'm.] 



Extensively grown for ex- 

 port. Locally naturalized in 

 moist grounds and shaded situ- 

 ations. Native of Europe. 

 Flowers in spring and sum- 

 mer. Reade erroneously de- 

 scribes the flowers as white. 



2. Apium peregrinum (L.) Crantz. 

 Wild Parsley. (Fig. 298.) Similar to the 

 preceding species, branched, glabrous, 2° 

 high or less. Segments of the petioled basal 

 leaves rhombic-ovate, 4"-7" long, 3"-4'' 

 wide, acute or acutish, serrate or somewhat 

 incised; segments of the nearly sessile, few 

 and distant upper leaves much narrower; 

 umbels, involucre and involucels similar to 

 those of A. Petroselinum, but the flowers 

 yellowish; fruit about 2" long. [Ligiisticnm 

 peregrinum L. ; Petroselinum perepri»i/w 

 Lag.] 



Rocky hillsides, St. Georges Island, lOOS. 

 Introduced. Native of southern Europe. Flow- 

 ers in spring. Erroneously recorded as F'im- 

 pincUa Anisum L. (Proc. Acad, Nat. Scl. Phila. 

 1909: 489). 



