DR. F. MUELLER’ S MONOGRAPH OF THE EUCALYPTI. 81 
of the Guainia, the name given to the Guainiu above its confluence 
with the Casiquiare, and also on the Atabapo, an affluent of the 
Orenoco below its junction with the Casiquiare. He describes it 
аз a tree of 30 or 40 feet in height, with slender branches, and 
handsome, very highly scented, yellow flowers. He found the 
number of folds of the corolla to vary from 22 to 26; I have 
Counted 28 in some flowers ; and in a loose corolla which he found 
floating very far down the Rio N egro there are 35. | 
Adrien de Jussieu (Ann. Sc. Nat. iii. 2. p. 227) states that, in 
the bud. he examined, he found a 5-celled ovary with three or four 
pendulous ovules in each. In the flowers I have:examined I find 
six cells, corresponding to the six raised ribs of the base of the 
style described by Desfontaines. The four pendulous ovules in 
each cell are precisely as in Napoleona. 
There being no fruit with these specimens, they add but little 
to what was already known as bearing on the much-disputed 
question of the affinities of these plants. I cannot enter into 
Jussieu's views of their proximity to Sapotacee ; but it appears to 
me that everything confirms Lindley's views of their affinity with 
Myrtacee. Indeed if we include in that family the Barringtonice 
and Lecythidee, we can scarcely exclude Asteranthos. The tendency 
to the union of the petals and stamens in concentric rings may be | 
traced in several plants of the group. 
Monograph of the Eucalypti of Tropical Australia; with an Ar- 
rangement for the use of Colonists according ae Stracture 
of the Bark*. Ву Dr. Frrprvanp МокгЁЄв, Government 
Botanist, Victoria, Australia. Communicated by Dr. J. D. 
 Hooxzm, V.P.R.S. F.L.S. - 
[Read February 18, 1858.] 
CowsPEcTUS EUCALYPTORUM AUSTRALIZ INTERTROPICE ET 
SUBTROPICA. 
I. Folia alterna, latitudine conspicue longiora. 
$ 1. Valve prorsus exserte. | 
1. E. tereticornis. Operculum conico-subulatum. 
2. E. rostrata. Opereulum hemisphericum, rostratum. 
3. E. brevifolia.  Operculum hemisphericum, muticum. 
* The accompanying MS. has been compared with the specimens from Dr. 
Mueller and A. Cunningham in the Hookerian Herbarium, by Mr. Allan Black, 
Curator of the Herbarium, who has added some habitate and notes.—J. D. H. 
LINN. PROC.—BOTANY. e 
ОТИУИ 
