8 
Ammdbroma^ a New Genus of Plants. 
Ammobroraa, differ from Monotropacese in tbe stamens being 
perigjnoiis not hypogynons, with the pollen distinctly trian- 
gular ; and in the numerous cells of the ovary with only a single 
ovule in each cell. As the mature fruit is unknown we are 
uncertain as to the character of the seeds, 6ut there is no indi- 
cation of their being loose-skinned. On the whole, therefore, 
it would seem that these three genera form a very natural 
group by themselves, which may be regarded as a tribe or sub- 
order, to be named Lennoese ; the genus Lennoa having been 
published by Llave & Lexaza a year earlier than the Corallo- 
phylluin of H. B. & Kunth. 
DESCRIPTION OF THE PLATE. 
Fig. 1. Upper part of the plant of the natural size. 
“ 2. Longitudinal section of the same, showing the mode of inflo- 
rescence. 
3. A portion of the root, and that of the plant to which it is attached 
as a parasite. 
4. A flower, magnified. 
“ 5. One of the divisions of the calyx, more magnified. 
6. The same, witk its calyx removed, and the corolla laid open, 
magnified. 
7. A stamen ; back view, magnified. 
“ 8. The same ; front view. 
“ 9. A grain of pollen, highly magnified. 
“ 10. A pistil, with a longitudinal section of the ovary, considerably 
magnified. 
“ 11. A cross-section of the same, equally magnified. 
Columbia College, New York, September, 1864. 
