CERANIL'.M FAMILY. 247 



o. ERODIUM L Her. Storksbill. 

 Annual herbs. Leaves opposite, often unequal, either simple or 

 pinnate, with one interpetiolar stipule on one side and two on the 

 other. In vegetative i-haracters very similar to Geranium; the Bower 

 and fruit nearly the same, but the stamens with antbei-s 5 only, the 

 alternate filaments sterile and scale-like. Styles in fruit twisting 

 spirally, bearded inside. Pedicels after anthesis commonly retro- 

 curved. (Greek erodios, a hei-on.) 



Leaves reniform-cordate, lobesf(if any) shallow 1. E. macrophyllmn. 



Leaves oblong to oblongK)vate, pinnatifid or pinnate. 

 Leaves pinnatifld; sepals bristle-tipped.. . . . . 2. £. Boirys. 



Leaves pinnate with serrate or merely incised leaflets; petals with naked 



claw : sepals not terminated by bristles S. E. moschatum. 



Leaves pinnate with pinna tiiid leaflets; claw of petals ciliate; sepals with 

 1 or 2 terminal bristle-like hairs. . . . . . 4. £. cicutarium. 



1. E. macrophyllum H. & A. Acautecent or subacaulescent, 

 tomentose, with interspersed spreading glandular hairs; leaves reni- 

 form-cordate, crenate and often with shallow crenate lobes, 1 to 1^ in. 

 broad; umbels mostly 2 to 3-floweied, on elongated (4 to 9 in.) pedun- 

 cles; petals white, 5 to 8 lines long, little exceeding the broad sepals; 

 filaments conspicuously orbicular-dilated at base; beak of fruit stout; 

 mature carpels densely silky-hairy, truncate at top, 4 lines long. 



"Willows, Jepson; Anderson Valley, Bolander, no. 4805; Kirker 

 Pass, Brewer; Stockton, Fitch; Ti-acy, Bioletii, and southward. 

 ^Vhole leaf blade scmietimes undulate and with closed sinus. 



Var. Californicum (E. Californicum Greene). Tall and branch- 

 ing, puberulent and beset with purple-lipped glandular hairs; leaves 

 larger, 2 iii. bmad; flowers frequently about o or 6 in a cluster; petals 

 deep rose-red or purple. — Oakland Hills, Blasdale. 



2. E. Botrys Bertol. Caulescent, branching from the base and 

 commonly prostrate; coarsely white-pubescent, leaves 1 to 2 in. long 

 on petioles as long or twice as long, oblong-ovate, pinnatifid, the 

 lobes seiTate, acute; sepals short-pointed and tipped with 1 or 2 short 

 bristles; petals deep violet; glands greenish; filaments dilated ne:u-ly 

 to apex and toothed. 



Naturalized plant, scarcely known in California ten years ago, but 

 within that time become common in many localities from Marin and 

 Solano Cos. to northern California, spreading with especial rapidity 

 over low pastured hills and rolling gravelly plains. 



3. E. moschatum L'Her. Filaree. Musk Clover. Hirsute 

 with scattered spreading hairs, attii-st acauleseent, the radical leaves 

 often forming a close rosette upon the ground; later with stout fleshy 

 ascending stems J to 1 ft. high; leaves 2 or 3 in. to IJ ft. long; 

 leaflets ovate to elliptical, serrate and sparsely incised, short-petiolate, 

 J to 1^ in. long, the terminal cuneately 3 to"5-parted; stipules large, 

 membranaceous; peduncles in the axil of the smaller of the unequal 

 opposite leaves, much elongated in fruit. 4 to 11 in. long; sepals not 

 bristle-bearing at tip; petals rose-purple, 3 lines long, Avith short 

 claws; beak of the fruit IJ to If in. long; filaments membranously 

 winged at base, with upwai-dly pointing teeth. 



