34 CRUCIFERS. (MUSTARD OR RADISH FAMILY.) 
springs, Penn., and southward along the mountains. May, June. — 
Leaves with just the taste of the English Water Cress. Runners in 
summer 1°- 3? long. Flowers white, smaller than in No. 5. 
5. C. rtiomboidcsi, DC. (Spring Cress.) Upright , tuber * 
iferous; stems simple; ropt-leaves round and rather heart-shaped , 
lower stem-leaves ovate or rhombic-oblong, somewhat petioled, the 
upper almost lanceolate, all somewhat angled or sparingly toothed, 
pods linear-lanceolate, pointed with a slender style tipped with a 
conspicuous stigma; seeds round-aval. — Wet meadows and springs, 
common. Flowers large, white. — Var. purpurea, W. New "i°rk 
and northward, is lower, a little pubescent, with the blossoms rose 
color or purple. At the base of the stem is a cluster of little tubers. 
April, May. — Approaches Dentaria. 
C. teres, Michaux, is said to grow in New England in his Flofy 
and his specimens at Paris are ticketed “Lake Champlain, Vermont. 
But the plant appears clearly to be Nasturtium tanacetifolium, o r * 
ly rat urn , of the Southern States (cotyledons accumbent!), which ea 3 
me to suspect a mistake in the record of the locality. 
4. DENTARIA, L. Tooth wort. Pepper-root. 
Pod lanceolate, flat, as in Cardamine, but broader. Seed-stalks 
flat. — Perennials with long horizontal and fleshy toothed root 
stocks of a pleasant pungent taste, sometimes interrupted , ^ 
low simple stems bearing 2-3 petioled compound leaves about 
middle, often in a whorl, and a single raceme of large white 
purple flowers. (Name from dens, a tooth.) 
1. I>. diptiylla, L. (Common Tooth wort or P xppER-R°j^ 
Rootstock long and continuous, toothed ; stem-leaves 2, like the ? a _ 
ones, close together, of 3 rhombic-ovate coarsely toothed lea 
Rich woods, Maine and W. Massachusetts westward. May. 
stocks 5' -10' long, crisp, tasting like Water Cress. Flowers w n ^ 
2. I>. maxima, Nutt. (Great Toothwort.) Ro0tS ^ t ^- 
string of strongly toothed tubers ; stem-leaves (2-7) mostly 3 < in " ^ 
nate ; leaflets 3 ovate , obtuse, coarsely toothed and incised, often 
cleft. (D. laciniata, var. d., Torr. Gr., FI.) — W. New ^ or 
Penn., Nuttull ! Watertown, New York, Dr. Crawe! May ^ 
10' -2P (Nutt.) high : raceme elongated. Flowers larger than ± ^ 
purple. Joints of the rootstock V -2* long, £' thick, stare y^ ^ 
Crawe’s specimens of this rare species are not so large as 
scribes. The leaves are intermediate between No. 1 and No. * 
3. D. laciniata, Muhl. (Cut-leaved Toothwort.) 
stock necklace-form , consisting of a chain of 3 or 4 nearly toot i esS ^ ^ 
long tubers: stem-leaves 3 in a whorl, 3-parted ; the leaflets h nea 
