VOL. III.] Notes on CE not her a. 251 



ably. The pistil was erect and protruded its viscid stigmas from 

 the opening bud without a grain of pollen to be seen. The stigma 

 lobes which were folded in the bud expanded as the corolla unfold- 

 ed. Humming bird moths frequented the patches and flew from 

 flower to flower almost as soon as they were open. The flowers 

 were withered before noon the next day. They have a fragrance 

 sweet and strong, so much like a lily that they are often so called. 

 I suppose that the color too has something to do with the incorrect 

 name. 



One morning in June, after a frost the preceding night, I per- 

 ceived, as I was riding along, an open flower with the lobes of the 

 stigma closed. I had never noticed such a phenomenon before, 

 and it impressed me as singular. I wondered if the frost had closed 

 them after expansion or if the cold had prevented their opening. 

 Did the stigma lobes come together to protect the naked stigmatic 

 surfaces, or was it merely an accident ? 



CEnothera scapoidea Nutt., has two distinct forms which are both 

 found at Grand Junction, sometimes even growing side by side. 

 The small-flowered form blooms earlier than the other. The differ- 

 ence in size is marked, one having flowers an inch in diameter with 

 protruding stigmas, the other with corollas less than a quarter of an 

 inch across and stigmas included and fertilized in the bud. The 

 pods and seed differ only in size but to a less degree than the flow- 

 ers. Both have the red spots at the base of the petals and both 

 have variable leaves. Generally they are entire, sometimes they 

 have a few short irregular lobes at the base of the blade, and rarely 

 have I seen them with margins irregularly sinuate toothed. 



Oenothera cardiophylla Torr. Approaches so near to QL. scapoi- 

 dea that it is impossible for me to discriminate among the several 

 forms which I collected this spring. The Grand Junction form has 

 stems leafy along the branches instead of at the base; the leaves are 

 oblanceolate, sinuate, dentate or entire, often with small irregular 

 lobes below the blade. The flowers are very small and reddish, 

 orange when they first open. The Moab form has all the leaves, 

 except the bract-like upper ones, clustered near the root; the upper 

 leaves are small, ovate and remotely dentate, the lower have from 

 one to five pairs of small irregular leaflets on the long petiole. The 

 pedicels equal the pod, but they vary in length in almost every 

 plant. Another Moab form has all the leaves clustered at the base 



