480 BRASSICACEAE 
than the stems, simple or branched, 5-25 cm. high : racemes elongated : pedicels spreading 
or somewhat ascending, 4-9 mm. long: sepals oblong, about 1.5 mm. long: petals white: 
pods elliptic, 6-7.5 mm. long, finely pubescent. 
In dry soil, Texas to Arizona. Spring. 
7. Draba brachycarpa Nutt. Annual, thinly pubescent with stellate hairs. Stems 
simple or usually branched at the base ; branches erect or ascending, 2-20 cm. long, leafy 
to the racemes : leaves 5-15 mm. long ; blades oblong or oblong-lanceolate, or the basal with 
ovate to obovate blades : racemes narrow, 1-10 cm. long, pedicels 1-3 mm. long, ascending 
or nearly divaricate : sepals oval or oblong, less than 1 mm. long: petals white, longer 
than the sepals or wanting : pods oblong, about as long as the pedicels, glabrous, acute. 
In fields and dry soil, Virginia to Missouri, Georgia and Texas. Spring. 
8. Draba ramosíssima Desv. Perennial, more or less densely pubescent with stellate 
hairs. Stems decumbent or creeping, the branches erect, 1-3 dm. tall, simple below, corym- 
bose above : leaves mainly basal; blades narrowly oblong, oblanceolate or cuneate-oblance- 
olate, 1-4 cm. long, acute, remotely dentate with spreading teeth : racemes in terminal 
corymbs : pedicels ascending, 5-10 mm. long : sepals oblong-lanceolate, 3 mm. long, obtuse : 
petals white, spatulate, about thrice as long as the sepals, rounded at the apex : pods nar- 
rowly oblong, 5-12 mm. long, spirally twisted at maturity, acuminate. 
On clifis or rocky banks, Virginia to Kentucky, North Carolina and Tennessee. Spring. 
20. DENTÀRIA L. 
Erect scapose herbs, perennial by horizontal rootstocks. Leaves basal. Bracts usually 
similar to the leaves, opposite or 3 or 4 in a whorl or approximate above the middle of the 
scape : blades palmately cleft or 3-divided, the segments toothed or incised. Flowers per- 
fect, in terminal racemes or corymbs. Sepals 4, equal at the base. Corolla white or purple : 
petals with spreading blades and slender claws. Stamens 6. Ovary sessile : style slender : 
stigma entire or rarely 2-lobed. Ovules numerous. Pods elongated, flattish or nearly terete, 
the valves nerveless, or with a faint midnerve, elastically dehiscent from the base. Seeds 
in 1 row in each cavity, not margined, somewhat flattened. Cotyledons accumbent. The 
plants flower in the spring. Toormwonr. 
Blades of basal and stem-leaves similar, 
Leaf-segments linear. 
Leaf-segments 1-2-parted. 1. D. multifida. 
Leaí-segments entire, toothed or merely incised. . D. furcata. 
Leaf-segments not linear. 
Rootstocks tuberous, moniliform, not scaly: leaf-segments laciniate. 
Rootstocks elongated, continuous, scaly : leaf-segments toothed or incised. 
2 
3. D. laciniata. 
Leaf-segments incised, with narrow, very acute, often flaring teeth. 4. D. incisa. 
5 
6 
Leaf-segments not incised, with broad, blunt or merely mucronate teeth. . D. diphylla. 
Blades of basal and stem-leaves very dissimilar. . D. heterophylla. 
1. Dentaria multifida Muhl. Rootstocks continuous. Foliage glabrous or nearly 
so : leaves nearly 3-foliolate, with long petioles and once or twice pinnately parted segments, 
the ultimate segments linear, entire or sparingly toothed : scapes erect, 2-3 dm. tall, 
simple: bracts 2, with short petioles, and blades similar to those of the leaves: pedicels 
ascending, 1.5-2 cm. long: sepals oblong, 5-6 mm. long, obtuse: petals white, almost 
twice as long as the sepals : pods slender, ascending, 3 cm. long, long-beaked. 
In rocky woods, North Carolina to Tennessee, Georgia and Alabama. 
2. Dentaria furcata Small. Rootstocks moniliform. Foliage sometimes pubescent : 
leaves with long petioles and 3 linear entire toothed or merely incised segments: scapes 
erect, 2-3 dm. tall, simple : bracts 3, the blades similar to those of the leaves : pedicels 1-2.5 
em. long: sepals oblong to oblong-lanceolate, 5-6 mm. long: petals pink or whitish, 12-14 
mm. long: pods narrowly fusiform, fully 3 cm. long, the slender beak nearly 1 cm. long. 
In moist or rich woods, Ohio to Tennessee and Alabama. 
3. Dentaria laciniàta Muhl. Rootstocks jointed. Foliage glabrous or sometimes 
finely pubescent: leaves with long petioles and 3 linear-lanceolate or oblong coarsely ser- 
rate or incised segments : scapeserect, 1-3.5 dm. tall : bracts 3, the blades similar to those of 
the leaves: pedicels ascending, stout, 1-2 em. long: sepals oblong, 5-6 mm. long, obtuse: 
petals pink or purple, twice or thrice as long as the sepals: pods slender, 3-5 cm. long, 
long-beaked. 
In woods, Quebec to Minnesota, Florida and Louisiana. PEPPER-ROOT. 
4. Dentaria incisa Small. Rootstocks continuous, scaly. Foliage glabrous: leaves 
with long petioles and 3 ovate or lanceolate segments conspicuously incised with narrow 
