58 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
A specimen collected by Brandegec, June 8, 1889, at Alpine Station, San DiegoCounty, 
Cal., differs from the coast forms with which it is allied, not only in its very different 
elevation, but also in its much more prominent bracts. [It may belong to some of the 
coast species, but as we have seen only the heads, which seem to suggest a difference, 
we do not venture at present to assign it to any of them. 
A specimen in Professor Greene’s herbaritun, collected by Michener & Bioletti at 
“San Joaquin Bridge,’? San Joaquin County, September, 1892, is unlike any species 
we have seen, but is too immature to characterize definitely. [t is very slender and 
spreading, froma fascicle of thick roots; basal leaves reduced to nodose petioles 3d. 
long or more; lower stem leaves similiar, bat shorter, and with very small lanceolate 
entire or somewhat spinosely-toothed blades; uppermost leaves sessile and bristly- 
toothed and cleft; heads very small and scattered along the loose and elongated 
branching stem; bracts very narrow, much longer than the heads, sparsely bristly at 
base; bractlets scarious below; sepals ovate-lanceolate, scarious-margined, tapering 
into a cuspidate tip. 
6. CHAEROPHYLLUM [.. Sp. Pl. 1: 258. 1753. 
Calyx teeth obsolete. Fruit attend laterally, narrowly oblong to 
linear, rounded at base, with short beak or none. Carpel terete, with 
equal ribs, each with a large group of 
strengthening cells usually occupying 
the whole thickness of the thick pericarp. 
Stylopodium conical; styles very short. 
Oil tubes small, mostly solitary in the 
intervals, 2 on the commissural side. 
a = 
ee 
Seed face more or less deeply suleate. 
Annuals, In motst ground, with ter- 
nately decompound leaves,  pinnatifia 
leaflets with oblong obtuse lobes, usually 
no Involucre, involucels of many bract- 
lets, and white flowers. 47 
First species cited, (. sy/vestre Li. 
A group of about 40 species, extend- 
ing from Europe to central Asia, probably three species occurring in 
the United States east of the Rocky Mountains, 
In our former revision of the genus we were unable to separate CL lainturiert as a 
Fig. 6.—Chaerophyllum tainturieri 
dasycarpum: a, 9; b, «< 12. 
species from CL procumbens. Further study and more abundant material, however, 
have convinced us that they are probably to be separated by the characters of the 
fruiting umbel and of the fruit, as well as by the range. In all the forms mature 
fruit is very essential for determination. 
Glabrous; fruit not beaked. 
Fruiting umbels of 2 to + fruits on weak spreading pedicels..... 1. C. proeminhens. 
Fruiting umbels of 10 to 17 fruits, which are sessile or on stout pedicels, forming a 
compact cluster ..........-.......---------------------------- 2.) feraniwn, 
Pubescent; fruit beaked; fruiting umbels compact .........2-.---- 3. C. tainturiert. 
1. Chaerophyllum procumbens (Ll...) Crantz, Umbel. 77. 1767. 
Scandia procumbens L. Sp. Plo 1: 257. 17538. 
Glabrous or nearly so; stems slender, spreading, 1.5 to4.5 dm. high; 
