1914] DE VRIES—OENOTHERA LAMARCKIANA 361 
Plate XTX 
Ocnothera Lamarckiana Ser. in the “Herbier de l’Amérique septentrionale” 
- of ANDRE Micwavx, collected about 1800 in the eastern parts of the United 
States: A, top of spike photographed and reproduced about natural size; 
B and C, the whole specimen of Micuavx, consisting of two parts, reduced 
about one-half; all three figures photographed for me by Dr. L. BLARINGHEM; 
in the reproduction the narrow bands of paper used to fix the specimen to its 
sheet and seen on the photographs have been omitted. ~ 
