236 PHANEROGAMOUS PLANTS. 



leaves, very broad pod, and conspicuous style, as well as in its pubes- 

 cence. 



Plate 2. — Cleome platycarpa. Upper part of the plant. Fig. 1. 

 An unexpanded flower. 5. Stamens from the same. 2. An ex- 

 panded flower. 3. A sepal. 4. A petal. 6. A stamen. 7. Upper 

 part of the same, showing the form of the anther after discharging 

 its pollen. 8. The pistil. 9. Re plum and seeds of a mature pod. 

 10. A seed. 11. The same longitudinally divided. Details more or 

 less magnified. 



2. Cleome lute a, Hook. 



Hab. Rich soil, on hillsides, Kooskooskee River, flowering in May 

 and June : also on the Walla- Wall a River. — This includes C. aurea, 

 Nutt., in Torr. & Gray, Fl. At least I find no sufficient characters for 

 distinguishing G. aurea from C. lutea. In both the stamens are nearly 

 equal when the flowers are fully expanded, but in some of the buds of 

 my specimen of the latter, one or two of the stamens are shorter than 

 the others, as represented in the figure of Hooker. More rarely there 

 are four short and two long stamens, as they are described in the text 

 of the same work. As to the relative length of the pod and styles, 

 there is no constancy. The ovary in some of the flowers is reduced 

 to a mere rudiment. 



2. POL A NISI A, Baf. 



1. Pol A NISI A GRAVEOLENS, Raf. 



Hab. On the Walla- Walla, Oregon ; June, in flower and fruit. — So 

 far as we know, this plant has not before been detected west of the 

 Rocky Mountains. 



