TONO ET а eae 
NOTES ON CERTAIN CRUCIFERAE 
EDWIN BLAKE PAYSON 
Teaching Fellow in Botany, Washington University 
SyNTHLIPsis Gray 
Pods oblong, strongly flattened contrary to the septum; 
valves sharply carinate, distinctly margined at the apex; 
areolae of septum not at all tortuous; ovules 6-12 in each 
cell; seeds with a mucilaginous testa whose cells emit spiral 
threads when wet. 
S. Greggii Gray, Mem. Am. Acad. N. S. ІРІ. Fendl.] 4: 116. 
1849. 
Synthlipsis, as originally limited, remains monotypic and 
quite distinet from Lesquerella by reason of the carinate 
valves, the different septum, and the mucilaginous seed coat. 
Several other species have from time to time been referred 
to this genus because of their flattened pods. In all other 
ways, however, these agree with Lesquerella and in that 
genus they must be placed. One species seems even to have 
been described and maintained under two names—S. Ber- 
landieri Gray and Lesquerella lasiocarpa (Hook.) Wats. 
Puysaria Gray 
A complete revision of this genus is in course of prep- 
aration, but until such time as that may be completed it 
was thought the following synopsis would be useful in the 
determination of exsiccatae. 
KEY TO THE SPECIES AND VARIETIES 
A. Mature pods globose- Esai Ri not strongly ке laterally. 
a. Shoulders of upper s (of pods) ro 
a. All the езана idi eral ы Ест 
Е В ез obtuse; blade usually рате іп 
outlin 
1. Pods ‘cordate at b 
* Basal “е! appressed. stella 
d cence of young pods anis g; 
leaves angularly toothed. ...7. P.didymocarpa 
tt PER of young pods appressed; 
basal leaves к, ог ү. 
toothed 1a. var. australis 
** Basal leaves conspicuously lanate..... 1b. var. lanata 
(143) 
ANN. Mo. Вот. GARD., VOL. 5, 1918 
