W ATSON—Plants of Bernalillo County 
2. SrsymBrium, Tourn. 
Pubescent annuals or biennials with toothed or fine- 
ly dissected leaves, very small yellow flowered (in 
ours), and oblong seeds, 
S. canescens, Nutt. Tansy Mustard. Leaves twice 
pinnatifid, often hoary or downy, the divisions small 
and toothed; pods in long racemes. Common about 
Albuquerque. March and May. 
3. Nasturtium, Rk. BR. Water-Cress. 
Aquatic or marsh plants usually glabrous with pin- 
natifid leaves (in ours). 
N. Orricinats, &. BR. European Water C. 
Le aflets three to eleven, roundish or oblong, nearly 
entire petals white, twice the length of the calyx; pods 
1-2 to 1-3 inches long on slender, widely spreading ped- 
icles. Common in the stream of Tijeras Canon es- 
pecially toward the upper end. 
4, LersQquEerRELua, Watson. 
Low herbs, hoary with stellate hairs, yellow flowers, 
pods with a hyaline septum, nerved from apex to the 
middle. In ours the leaves are not auriculate clasping, 
filaments are filiform, seeds marginless, pods glabrous 
with a very short stipe, erect on spreading or ascend- 
ing pedicels. 
L. enecetemannti, Watson. Densely pubescent, cau- 
dex usually unbranched ; leaves petioled, ovate to linear- 
spatulate; raceme short; pods 1-4 inch broad. Very 
common in the mountains in the spring especially in 
the Pinon Soc. There are probably other species. 
5. Drasa, Dill. (Whitlow-Grass. ) 
Low herbs with stellate pubescence, entire or toothed 
leaves; small white flowers. Ours are winter annuals, 
with short leafy stems. 
D. cunerrotia, Nutt. (Wedged-leaved W.) Leaves 
cuneate-ovate to lanceolate, coarsely few-toothed or en- 
tire; pods with short appressed hairs. Bear Canon in 
the Quercus gambeliz Soc., early spring. | 
6. Arasis, L. (Rock Cress.) 
Low or tall herbs with white or purple flowers, with 
perpendicular roots, and undivided leaves, the cauline 
usually clasping, auricled at base. 
A. Sparuutta, Nwétt. (2%) Hirsute, dwarf and some- 
what cespitose, about 4 in. high; root thick; leaves spat- 
wlate-oblong, entire, radical with the long petioles; 
petals about. twice the length of the sepals; pedicle , 
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