CARROT FAMILY 447 
PERNELL. Smooth with a whitish bloom on stem and leaves; 1 to 3 ft. 
high, branching. Leaflets lance- or egg-shaped, not dissected and with- 
out marginal teeth. Rays of the umbel numerous. Flowers yellow. Rocky 
or sandy soil, eastern Pennsylvania and in New Jersey. May-June. 
19. OXYPOLIS, Raf. (Tiedemannia, DC.) 
Erect aquatic herb, without hairs. Leaves simple feather-formed (in 
our species). Rays of umbel few, compound, ours without involuere. 
Flowers white. Calyx teeth 5. Fruit without bristles, ribbed, the lateral 
ribs winged. 
O. rigidus, (L.) Britton, (Fig. 6, pl. 110.) CowBanr. Plant grow- 
ing in swamps, 2 to 5 ft. high. Leaves, the lower ones sometimes a foot 
long of 3 to 9 narrow but thick leaflets, remotely toothed on the margins. 
New York and southward. Aug.-Sept. 
20. HERACLEUM, L.. 
Tall herb, leaves ternate, of broad leaflets each of which is deeply lobed. 
Umbels of white flowers, the latter rather larger than those of most species 
in this family. Petals heart-shaped or 2-lobed. Involucels of several nar- 
row bracts. 
H. lanatum, Michx. (Fig. 11, pl. 111.) Cow Parsnip. Plant 4 to 
8 ft. high, woolly with grooved stem, which is thick and rigid. Leaves, 
on leaf-stalks, divided into 3 large rounded or egg-shaped lobed leaflets, 
which beside the deep lobes are sharply toothed at the margins. The 
flowers, on large umbels are larger and individually more showy than 
any of the family, bearing white flowers, in our region. Moist grounds, 
throughout our area. June-July. 
at. CRYPTOTAENIA, DC. (Deringa, Adams) 
Erect plant, with 3-parted leaves and umbels of very unequal rays. 
Fruit oblong, ecarpel with 5 ribs, calyx teeth absent. Involucre and in- 
volucels absent. 
C. canadensis, DC. (Fig. 2, pl. 110.) Hone Wort. Plant smooth, 1 
to 2 ft. high. Leaves of 3 large ovate leaflets which are toothed at the 
margins, the center leaflet generally only slightly lobed, the side leaflets 
commonly deeply lobed. Fruit narrow at both ends. Flowers small, 
white. Moist woods, throughout our area. June-July. 
22. COELOPLEURUM, Ledeb. 
Stout smooth herb, found at sea-coast with leaves once or twice 3-parted. 
Leaves on leaf-stalks which are greatly inflated. Umbels large, involucre 
absent or falling very early. Involucels of narrow bracts often decidu- 
ous, never conspicuous. Fruit oblong to globose, the lateral ribs slightly 
broadest. Flowers greenish-white. 
C. Gmelini, (DC.) Ledeb. (Fig. 8, pl. 109.) Sra Coast ANGELICA. 
Plant 1 to 3 ft. high. Leaflets ege-shaped, deeply toothed and often 
lobed at margins. Fruit about 1/5 in. long. Sea coasts, Mass., and north- 
ward. Summer. 
