a a, 
254 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Newfoundland by Pylaie, but has not been discovered since. It has also been col 
lected on ballast near Philadelphia by Martindale and Parker. 
AMMI VISNAGA (L.) Lam. Fl. Fr. 3: 462. 1778 (Daucus visnaga L. Sp. Pl 1: 242. 
1753), from the Mediterranean region, has been collected on ballast near Philadel- 
phia (Martindale in 1879), and near Portland, Oreg. (/Zenderson in 1887). 
16. CARUM 1. Sp. Pl. 1: 263. 1753.—For description of genus and native 
species, see page 103. 
Carum carr L, Sp. Pl 1: 263.1753, the common garden caraway from Europe, 
and the type of the genus, has become naturalized in many places, especially in the 
north and northwest. It may be recognized by its pinnately compound leaves with 
very narrow and often filiform entire or toothed divisions. Our material is as fol- 
lows: Newfoundland (Osborn in 1879); Jeffrey, No HH. (Deane in 1889 and 1890); 
Manchester, Vt. (AM. al. Day in 1898); Easton, Conn. (Maines in 1895); Norfolk, Va. 
(Ward in 1877); Ithaca, N.Y. (Univ, Coll. in 1880); Westmoreland County, Pa. ( Pier- 
ron in 1877); Lebanon County, Pa. (Heller & Small in 1891); Monroe County, Pa. 
( Britton in 1893); Lorain County, Ohio, (Ricksecker in 1895): Naperville, HL. ( Umbach 
in 1898); Dakota County, Minn. (Mearns in 1891); Black Hills, 8. Dak. (Rydberg in 
1892); Brookings, 8. Dak. (Thoruber in 1893); Fort Collins, Colo. (Comen in 1893). 
oJ 
17. PIMPINELLA L. Sp. Pl.1: 263. 1753.—A genus which differs from Tuenidia 
in its pinnate leaves, conical stylopodium, almost obsolete ribs, and white flowers. 
A widely distributed genus of the Old World, containing about 70 species. 
PIMPINELLA SAXIFRAGA L. Sp. PL 1: 263. 1753, a European species, and type of 
the genus, has been somewhat widely introduced. Our material is as follows: New 
srunswick, John Britton, August 30, 1890; roadsides near Easton, Pa., Porter, July 
30, 1895; Sycamore, Ohio, Rushy in 1878. It may be distinguished by its broad leaflets. 
PIMPINELLA ANISUM L. Sp. Pl 1: 264.) 1753, the cultivated anise from the eastern 
Mediterranean, is reported by Deane as occurring wild in Massachusetts. It may be 
known by its very narrow and shining leaf segments. 
is. AEGOPODIUM L. Sp. Pl. 1: 265. 1753.—A genus which differs from Pimpi- 
nella in its ternate leaves, large ovate leaflets, and absence of oil tubes. A genus of 
EKurope-Siberia, containing 2 species. 
AEGOPODIUM PoDAGRARIA L. lL ¢., a troublesome weed in Kurope and Siberia, is 
sparingly introduced. Our material is as follows: Watertown, Mass. (Deane in 1894); 
Cambridge, Mass. (Robinson in 1895); Rohrerstown, Pa. (Sime/d in 1890). We have 
also had it from near Woodside, Long Island (Brown in 1877); Newark, Del. (Com- 
mons); and Providence, R. I. (Bailey). 
19. ORNANTHE L. Sp. Pl. 1: 254. 1753.—For deseription of genus and native 
species see page 121, 
OENANTHE PHELLANDRIUM Lam, FL. Fr. 8: 432. 1778, a species of Europe and 
northern Asia, was found by FS. Stee/e, June 10, 1897, near fish ponds on the grounds 
of the Washington Monument. It may be recognized by its fibrous roots (with no 
rootstock as in our native species), and rather small finely dissected leaves. 
20, AETHUSA L. Sp. PL 1: 256. 1755.—A genus which resembles {pion and 
Petroselinum, Wut differs in its more finely divided leaves, globose-ovoid fruit. (not 
flattened cither way), and prominent thick and sharp ribs. A monotypic genus of 
Europe and Asia. 
Aretiusa CyNArium L. 1. ¢., a fetid poisonous herb known as the ‘fool’s parsley”? 
or “dog’s parsley,’’ has become rather widely introduced in waste and cultivated 
ground. Our material is as follows: Ipswich, Mass. ( Oakes; Morong in 1875); ballast 
near Camden, N. J. (Martindale in 1878); Tinicum, Delaware County, Pa. (Porter 
in 1899). Reported also at various stations from Nova Scotia and New England to 
Minnesota. 
