Ammohroma^ a New Genus of Plants, T 
undetermined. Knnth (1. c.) expressed no opinion as to tlie 
place of Corallophyllum in the Natural System, and he seems 
to suspect that the plant he examined was in an abnormal con- 
dition. It is left by him among his genera incertm sedisP 
Endlicher also places it with “ genera duhicB sedis.^^ 
Sir W, Hooker, who first described Pholisma, from Nuttall’s 
specimen, and gave a good figure of the plant in his leones 
Plantarum (1. c.), regards it as nearly related to Corallophyllumj 
and refers it to Orobanchacese, though he thinks it will yet 
form a distinct group near that order, but with a very different 
fruit. Walpers follows Hooker without comment. Lindley* 
places both genera, with a mark of doubt, at the end of Mono- 
tropacese, which they certainly resemble much more than they 
do Orobanchacese. Like the former they are parasitical on 
roots ; and in the spiked infiorescence of Pholisma there is an 
approach to Hypopithys. Most of the genera of Monotropacese 
are gamopetalous, and in half of them the anthers open by lon- 
gitudinal slits.f The pollen, also, is simple and spherical. 
On the other hand, Corallodendron and Pholisma, as well as 
* Vegetable Kingdom, p. 462. 
f Viz. In Pterospora, Allotropa, Torr. and Gray (in Bot. Wilkes’s Expl. Exped. 
ined.), and Hemitomes, Gray, in Newberry’s Bot. of Williamson, and Abbot’s 
Pacif. Eailroad Expl. An examination of good specimens of Hemitomes, collected 
in Washington Territory by George Gibbs, Esq., shows that the anthers are dis- 
tinctly 2-celled ; but they open and discharge their pollen even before the flower 
ia expanded. The lines of dehiscence are near the connective. After opening, 
the broader portion of the cells is rolled backwards till each nearly meets its fel- 
low, forming a large and spurious cell. A narrow portion of each proper cell is 
left. These also incline towards each other, so that another smaller, spurious, and 
apparently abortive cell is formed. Hence, after flowering the anther might 
easily be regarded as only one-celled by abortion. An examination of an unex- 
panded flower shows the true structure of the anther ; and proves that in the 
withered state the spurious cells are at right angles to the normal ones. Hence 
the name Hemitomes is quite inapplicable, and I propose that it be changed to 
Newberrya, in honor of the first discoverer of the plant, who has distinguished 
himself by investigating the recent and %sil botany of the Western and Pacific 
States. 
