444 UMBELLIFERAE 
Flowers small, white in many rayed umbels. The umbels and umbellets 
supplied with involucrate bracts. Calyx teeth obscure or absent; petals 
small. Fruit flattened, wavy ribbed. , 
C. maculatum, L. (Fig. 1, pl. 108.) Porson Hemiocx. Leaves finely 
dissected, the divisions, however, not thread-like, but deeply notched nar- 
row plates. In waste places throughout our area. June-July. 
1, CAUCALIS, L. 
Plants, in stems and foliage much resembling the carrot. Involucre 
absent. Flower umbels of our species either in the form of a rather close 
head or of an umbel with few rays. Calyx teeth 5, prominent. Flowers 
white or tinged with pink. Fruit with prickles or hooks arranged along 
the ribs. 
1. C. nodosa, (L.) Hudson. Knorrep Hepck Parstey. Stem re- 
clining, branched only at base. Leaves dissected into linear segments. 
Flowers in heads opposite the leaves. Fruit long-oval armed with long 
stiff hairs or prickles. Waste places. May-Aug. 
2. C. anthriscus, (L.) Hudson. (Fig. 4, pl. 107.) Erecr Hepner 
ParsLey. Plant, 2 to 3 ft. high, erect. Leaflets not so finely dissected 
as in No, 1. Flowers in few rayed umbels. Fruit long-oval, very bristly. 
Waste places, Philadelphia, etc. July-Sept. 
13. CONIOSELINUM, Hoffm. 
Tall slender herbs, without hairs, with finely dissected, doubly compound 
leaves. Involucre to main umbel absent, or of a few bracts which fall 
early. Involucels of secondary umbels present. Fruit oval, flattened, 
ribs on the back prominent, those of the sides extended into wings. Calyx 
teeth absent. 
C. chinense, (L.) BSP. (Fig. 3, pl. 111.) Hrmiock PARSLEY. 
Stem round, 2 to 5 ft. high, striped. The lower leaves on long leaf-stalks, 
the upper with short stalks or none. Flower umbels 9 to 16 rayed, the 
umbellets with a few narrow bracts. Wings of the seed nearly as broad 
as the seed itself. Cold swamps, southern New York and northward. 
Aug.-Oct. 
14. AETHUSA, L. 
Poisonous herbs, with much the appearance of the Carrot in respect 
to stem and foliage. Umbels not flattened at tip like carrot, but more 
or less rounded. The two bracts of the umbellet are narrow and long 
and both turn in the same direction. 
A. cynapium, lL. (Tig. 11, pl. 109.) Foor’s Parstey. Stem 1 to 
2 ft. high. In waste grounds that have been cultivated. Waste places 
throughout our area. June-Aug. 
1. CICUTA, L. 
Tall poisonous herbs, found iin swamps. Leaves doubly compound but 
leaflets not dissected. Umbels of white flowers, involueres absent or 
falling early. Involucels present, of many bracts. Fruit smooth, ribs 
not prominent. 
