Vor. IZ] CARROT FAMILY. 525 
20. AMMOSELINUM ‘Tl. &G. Pac. R. R. Rep. 2: 165. 1855. 
Low branching annuals, with ternately divided finely dissected leaves, the ultimate leaf- 
segments linear, spatulate, or oblong, and small white flowers in terminal sessile or pedun- 
cled slender-rayed umbels. Involucels of a few linear or dissected bracts. Calyx-teeth obso- 
lete. Fruit ovate to oval, laterally flattened, strongly ribbed, the ribs tuberculate or spinu- 
lose-tuberculate; pericarp very thick and dense; oil-tubes solitary in the intervals, and 2 on 
the commissural side. Styles and conic stylopodium short. [Greek, sand-parsley. ] 
Two known species, natives of the southwestern United States and Mexico. 
1. Ammoselinum Popei T. & G. 
Pope’s Sand-parsley. (Fig. 2668.) 
Ammoselinum Popei 'T. & G. Pac. R. R. Rep. 2: 
165. 1855. 
oer Popet A. Gray, Proc. Am. Acad. 7: 343. 
1868. 
A diffusely branched herb, 6-15’ high, the 
angled branches, rays of the umbels and pedi- 
cels rough. Lower leaves slender-petioled, 
the upper sessile, or nearly so, all dissected 
into linear obtuse or acutish segments about 
44’ wide; involucre usually of 1 dissected leaf 
or more; involucel-bracts few, entire, or dis- 
sected; longer rays of the umbels 1/ long in 
fruit, or less, the shorter ones often 1-flowered; 
fruit ovate, 2’’-2%4’’ long, narrowed above, 
1/’ wide, or a little more, the ribs rather 
strongly tubercled, or even spinulose. 
In sandy soil, western Kansas to Texas, Mex- 
ico and Arizona. April-May. 
21. FOENICULUM Adans, Fam. Pl. 2: 101. 1763. 
Erect biennial or perennial glabrous herbs, with pinnately decompound leaves, the seg- 
ments linear or capillary, and compound umbels of yellow flowers. Involucre and involu- 
cels none. Calyx-teeth obsolete. Petals obtuse or slightly retuse at the apex. Stylopodium 
large, conic. Fruit linear-oblong, glabrous, terete or nearly so. Carpels half-terete, dor- 
sally; flattened, prominently ribbed; oil-tubes solitary in the intervals. Seed-face flat, or 
slightly concave. [Latin, diminutive of foenum, hay, from its odor. ] 
About 4 species, natives of the Old World. 
1. Foeniculum Foeniculum (L.) Karst. Fennel. (Fig. 2669.) 
Anethrum Foeniculum I,. Sp. Pl. 
263. 1753. 
Foeniculum vulgare Gaertn. 
Fruct. & Sem. 1: 105. 1788. 
Foeniculum Foentculum Karst. 
Deutsch. Fl. 837. 1880-83. 
Perennial, branched, 2°-4° 
high. Leaves very finely dis- 
sected into capillary segments; 
petioles broad, clasping; umbels 
large, 9-25-rayed, the rays 
rather stout, somewhat glau- 
cous, 1/-3’ long in fruit; pedi- 
cels 1/’-4’’ long, slender; fruit 
about 3/7 long. 
In waste places, New Jersey and 
Pennsylvania to Virginia and 
Louisiana, escaped from gardens. 
Adventive from Europe. Called 
also Dill, Finkel, Spingel. July- 
Sept. 
