140 CRUCIFERAE. [Vou. II. 
1. Neslia paniculata (I,.) Desv. Neslia. 
(Fig. 1754.) 
Myagrum paniculatum L,. Sp. Pl. 641. 1753. 
Neslia paniculata Desv. Journ, Bot. 3: 162. 1814. 
Slender, branched above, rather densely rough- 
hispid, 1°-2° high. Leaves lanceolate, or the up- 
per linear-lanceolate, acute or obtusish at the 
apex, sagittate-clasping at the base, 1/-2'4’ long, 
2//-8’’ wide; racemes elongated; flowers yellow, 
nearly 1/’ broad; pedicels filiform, ascending, 
3//-5’’ long in fruit; silicles globose, or slightly de- 
pressed, about 1’’ in diameter, finely reticulated. 
In waste pat Ontario, Manitoba and British Co- 
lumbia, and in ballast about the eastern seaports. 
Adventive or fugitive from Europe. May-Sept. 
Rapistrum rugosum (1,.) All., a plant with 2-jointed 
indehiscent pods, erect on appressed pedicels, in long 
racemes, has been found as a waif at Easton, Penn., 
and plentifully in ballast about the seaports. It is 
nearly related to Raphanus. 
29. DRABA IL,. Sp. Pl. 642. 1753. 
Low tufted mostly stellate-pubescent herbs, with scapose or leafy stems, simple leaves, 
and mainly racemose flowers. Silicles elliptic, oblong or linear, flat, few to many-seeded. 
Stigma nearly entire. Seeds wingless, arranged in 2 rows in each cell of the pod, numerous; 
valves dehiscent, nerveless; cotyledons accumbent. [Greek name for some plant of this 
family. ] 
Species about 150, mainly natives of the north temperate and arctic regions, a few in southern 
South America. Besides the following, some 25 others are natives of western North America. 
Flowers white. 
Petals deeply 2-cleft. 1. D. verna, 
Petals entire, toothed, or emarginate. 
Flowering stems scapose, leafy only below. 
Plants annual, not arctic. 
Leaves entire, obovate or oblong. 2. D. Caroliniana. 
Leaves dentate, cuneate. 3. D. cunetfolia. 
Low arctic perennials. 
Leaves stellate-canescent. 4. D. Fladnizensis. 
Leaves pilose-ciliate or glabrous. 5. D. nivalis. 
Flowering stems leafy throughout up to the inflorescence. 
Leaves entire or sparingly dentate. 6. D. incana. 
Leaves sharply dentate. 7. D. ramosissima, 
Flowers yellow; co leafy. 
Pods oblong, 1''-2'' long. 8. D. brachycarpa. 
Pods linear or lanceolate, 3''-6"' long 
Annual; pods 3' 8 jong; panies divaricately spreading. 9. D. nemorosa. 
Perennial; pods 4''-7'’ long; pedicels erect. 10, D. aurea, 
Flowers yellow; stems Scapose, 11. D. alpina. 
1. Draba vérna L. Vernal Whitlow-grass. 
(Fig. 1755.) 
Draba verna \,. Sp. Pl. 642. 1753. 
Erophila vulgaris DC. Syst. Veg. 2: 356. 1821. 
Annual, the leafless flowering stems (scapes) numerous, 
1/-5/ high, erect or ascending, arising from among a tuft 
of basal leaves, which are oblong or spatulate-oblanceo- 
late, %4/-1’ long, dentate or nearly entire, acutish and pu- 
bescent with stiff stellate hairs; scapes nearly glabrous; 
flowers white, 114’/-2’’ broad; petals deeply bifid; pedicels 
ascending, ra! long in fruit; racemes elongating; pods 
oblong, glabrous, 3//-4’’ long, 1/’ broad, obtuse, shorter 
than their pedicels; style minute; seeds numerous. 
In fields, common throughont our district except the ex- 
treme north. Naturalized from Europe. Occurs also in Brit- 
ish Columbia. Native of Europe and western Asia. Feb.—May. 
