298 PHANEROGAMOUS PLANTS. 



6. (Enothera (Sphjerostigma) heterantha, Nutt. 



Hab. On the Spokane River, Washington Territory. — Leaves all 

 radical, 4 to 6 inches long, and an inch or more broad; nearly entire. 

 Flowers an inch in diameter ; the tube of the calyx very long and 

 slender. Capsules sessile and partly concealed in the bases of the 

 leaves, oblong, acute, angular. Seeds in a single series, oblong and 

 somewhat cylindrical, ascending. ' 



7. (Enothera (Sph^rostigma) cheiranthifolia, Hornem. 



Hab. Near San Francisco, California. — All the specimens have the 

 pods much contorted. 



8. (Enothera (Sph^rostigma) Andina, Nutt. 



Hab. On the Cascade Mountains of Oregon. — Of this singular little 

 plant there are two forms in the collections ; one of them with very 

 minute flowers, agreeing exactly with Nuttali's original specimens, 

 except that the plant is only 2 or 3 inches high, and branches from 

 near the summit; the other is of the same size and habit, but the 

 leaves are broader, and the flowers are four or five times larger. 



9. (Enothera (Sphjerostigma) contorta, Dough 



Hab. Prairies of the Kooskooskee, Washington Territory. — There 

 can be no doubts now that we have a fuller set of specimens, that 

 R. parvula, Nutt. (as was suspected in the Flora of North America) , 

 is the same as R. contorta. The capsules become contorted when old. 

 According to Dr. Pickering, the flowers are yellow or reddish. 



10. OENOTHERA (SPHiEROSTIGMA) STRIGULOSA, Torr. & Gray. 



Hab. Port Discovery, Washington Territory. 



