Vor. I.] MUSTARD FAMILY. 133 
4. Dentaria heterophylla Nutt. Slender Toothwort. (Fig. 1738.) 
Dentaria heterophylla Nutt. Gen. 2:66. 1818. 
Cardamine heterophylla Wood, Bot. & Fl. 38. 1870. 
Erect, simple, slender, scapose, glabrous or some- 
what pubescent, 10’-14’ high; rootstock near the 
surface, jointed. Basal leaves long-petioled, ter- 
nate, 2’-3/ broad; divisions short-stalked or sessile, 
ovate, 1’-114’ long, the terminal one cuneate or 
rounded at the base, the lateral ones inequilateral, 
all crenately toothed, lobed or cleft, the lobes or 
teeth mucronate; stem-leaves generally 2, opposite 
or nearly so, petioled, ternate, the divisions linear 
or lanceolate, 1/-114’ long, entire or dentate; pedi- 
cels 1/ long in fruit; flowers light purple, 8//-9/’ 
broad; pods ascending, linear, narrowed at each 
end, 1’ long; style slender, 2’/-3’’ long. 
In low woods, New Jersey and Pennsylvania, south 
along the mountains to Georgia and Tennessee. The 
stem-leaves often closely resemble those of D. /acin- 
zata, which blooms a little earlier. April-May. 
20. LUNARIA L.. Sp. Pl. 653. 1753. 
Annual, biennial or perennial, more or less pubescent erect branching herbs, with broad 
simple dentate or denticulate mostly cordate leaves, and large violet flowers in terminal ra- 
cemes. Lateral sepals saccate at the base. Petals obovate, clawed. Siliques long-stipitate, 
very flat, oblong or elliptic, the papery valves reticulate-veined, dehiscent. Style filiform; 
septum hyaline, translucent, shining. Seeds circular or reniform, very large, winged, borne 
on long funiculi, which are adnate to the septum; cotyledons large, accumbent. [Latin, 
moon, in allusion to the shining partition of the pod. ] 
Two known species, natives of Europe and Asia. 
Siliques oblong, pointed at both ends; perennial. 1. L. rediviva. 
Siliques elliptic, rounded at both ends; annual or biennial. 2. L. annua. 
1. Lunaria rediviva L. Perennial 
Satin-pod, or Satin-flower. 
(Fig. 1739.) 
Lunaria rediviva 1, Sp. Pl. 653. 1753. 
Perennial, pubescent with short simple 
hairs, stem rather stout, 2°-4° tall. Leaves 
broadly ovate, acuminate at the apex, deeply 
cordate, or the upper rounded at the base, 
thin, the lower long-petioled, 3/-6’ long; 
flowers 8//-12’’ broad, slender-pedicelled; 
pods oblong, 2/-3/ long, drooping, about 1’ 
wide at the middle, borne on slender stipes 
of about one-half their length; seeds reni- 
form, broader than long. 
In thickets, Canadian side of Niagara Falls. 
Escaped from gardens or fugitive from Europe. 
Determination based on flowering specimens 
collected by Professor Macoun which may, per- 
haps, belong to the following species, The plant 
is commonly cultivated for its ornamental flow- 
ers and pods. May-July. 
