MUSTARD FAMILY 



57 



Moist loam on wooded canon slopes, 300 to 1000 feet : Vaca Mts., Solano Co. 

 Mar.-Apr. 



Loc— In truly typical state this is known to us only from the east slope of the Vaca Mts., 

 where first obtained Mar. 1, 1885. 



Refs. — Dentaria cardiophylla Eob. ; Gray, Syn. Fl. l':155 (1895); Jepson, Fl. W. Mid. 

 Cal. 222 (1901), ed. 2, 188 (1911). Cardamine cardiophylla Greene, Fl. Fr. 266 (1891), type 

 loc. Weldon Canon, Vaca Mts., Jepson 14,731. D. integrifolia var. cardiophylla Jepson, Man. 

 426 (1925). 



2. D. corymbosa Jepson. Walty Toothwort. Plants 5 to 8 inches high; 

 herbage glabrous; leaves all simple, the blades mostly orbicular in outline, coarsely 

 dentate or sometimes palmately lobed, 1 to 1% inches long; cauline leaves mostly 

 2 or 3, approximate on upper part of stem; leaves from the rootstock with round- 

 cordate blades; fruiting raceme corymbose, the lower pedicels 1 to li/4 inches long; 

 pods 1 to 1% inches long, not including the (2 to 3 lines long) style. 



High peaks and mountain slopes, 5500 to 7000 feet : inner North Coast Ranges 

 from the Yollo Bolly Mts. to northern Lake Co. ; southern Sierra Nevada. Flowers 

 unknown. 



Locs.— North Coast Eanges: South Yollo Bolly; Black Butte, C. M. Wilder; Mt. Hull, 

 Tulare Co. : Colony Mill, TV. Fry 354. 



Var. grata Jepson var. n. Stem simple, 4 to 6 inches high, naked below, the cauline leaves 

 in threes (rarely in twos), somewhat approximate beneath the raceme; blades of cauline leaves 

 ovate to olslong-lanceolate in outline, % to 1^/4 inches long, coarsely 3-toothed at apex, or some- 

 times with a supplementary lateral tooth near the middle on each side ; leaves from the rootstock 

 with blades obovate in outline, entire save for the 3-lobed apex; raceme in anthesis corymbiform, 

 7 to 10 lines long; flowers SY2 to 4% lines long; petals white; fruit not known. — (Folia caulina 

 ternata, raro binata, ovata vel oblongo-lauceolata, unc. %-!% longa, ad apieem crasse 3-denti- 

 culata, nunc cum dente addicio prope utriusque lateris medium ; folia radicales obovata, integer- 

 rima, apice 3-lobato excepto.) — Timber Gap, Tulare Co., 9400 feet. Hall 4- Baicoch 5370 (type). 



Eefs. — Dentaria corymbosa Jepson, Man. 426 (1925), type loc. South Yollo Bolly, Jepson 

 126d. Var. grata Jepson. 



3. D. integrifolia Nutt. Milk-maids. (Fig. 

 134. ) Stem mostly one from the rootstock, erect, 

 6 to 21 inches high, the herbage rather fleshy; 

 leaves from the rootstock simple or 3-f oliolate, 

 the blades of the leaves or leaflets orbicular, 

 ovate or reniform, dentate or lobed, % to 2% 

 inches long; cauline leaves 3 or 5-f oliolate, the 

 leaflets orbicular to lanceolate or linear; raceme 

 mostly single; corolla white, 6 lines broad; se- 

 pals green or dull red; pods flattened, 1 to 1^/2 

 inches long, terminating in a stout style 1^ to 

 2 lines long. 



Foothills and valley floors, 25 to 150 feet: 

 Coast Ranges from Monterey Co. to Contra 

 Costa, Sonoma and Napa Cos. Feb.-Apr. 



Variation note. — Nuttall's original descriptions 

 of his specimens of Dentaria integrifolia and califor- 

 nica (T. & G. Fl. 1:88) from Monterey differentiate 

 his species very slightly and somewhat ambiguously. 

 Chiefly on account of the word "plains", which we con- 

 strue as open places, we are applying the name Den- 

 taria integrifolia to the plant with thickish smallish 

 leaves, entire leaflets, and white flowers, which grows 

 in open wet situations on the valley floors, often whiten- 

 ing, in March and April, low moist fields from Monterey 

 to Marin Co. and Napa Valley. This was evidently the 



construction placed upon the descriptions by E. L. _ ttt i. -d 1 i 



Greene (Fl. Fr. 266). The following stations may be noted: San Francisco; West BerJieley; 

 Lafayette, Davy; Dillon's Beach, M. S. BaTcer; Olema, Jepson 80e. 



Fig. 134. Dentaria integrifolia 

 Nutt. a, tubers and roots, X ^/^ ; &, A- 

 branchlet, X 1 ; c, basal leaf, X % ; 

 d, pod, X %. 



