Descriptions of Plants.'] 
APPENDIX. 
599 
EUDESMIA. 
Ord. Nat. Myrtacece, inter Eucalyptum et Angophoram. 
Syst. Linn. Polyadelphia Polyandria. 
Char. Gen. Calyx superus, 4-dentatus. Petala arete connata in Oper- 
culum 4-striatum deciduum. Stamina in phalanges quatuor polyan- 
dras, cum dentib us calycis alternantes, basi connata. Capsula 4-loc. 
polysperma, apice dehisceus. 
Eudesmia tetragon a. Tab. 3. 
In exposed barren places near the shores, in the neighbourhood of Lucky Bay, on 
the South coast of New Holland in 34° S. lat. and 123° E. Ion - ; gathered both in flower 
and fruit in January 1802. 
DESC. Frutex 3-5 pedes altus, ramis patentibus, ramulis 4-gonis angulis tnargi- 
natis. Folia opposita quandoque subopposita, petiolata, suepius aversa, lanceolata vel 
oblonga, coriacea compacta, integerrima marginata glauca resinoso-punctata, venis vix 
emersis anastomozantibus, 3-4 uncias longa, 14-16 lineas lata, limb elite laterales 
pauciflorae, pedunculo pedicellisque ancipitibus. Calyx turbinatus obtuse 4-gonus cum 
ovario coliserens, angulis apice productis in dentes breves subinaequales, duobus oppositis 
paulo majoribus. Operculum depresso-hemisphsericum muticum glandulosum albicans, 
striis quatuor cruciatis parum depressis dentibus calycis oppositis notatum, quasi epetalis 
quatuor conflatum, caducum. Stamina plurima : Filamenta in phalanges quatuor petalis 
oppositas approximate capillaria glabra alba, interiora sensim breviora : Anthem ovato- 
subrotundee incumbentes oehroleucae, loculis longitudinaliter dehiscentibus. Ovarium 
inclusum tubo adherenti calycis, 4-loculare: Stylus 1, cylindraceus: Stigma obtusum. 
Capsula inclusa et connata tubo aucto turbinato oblongo ligneo calycis, apice 4-fariam 
dehiscens. 
Ors. There can be no doubt respecting the affinity of this genus, 
which belongs to Myrtacete and differs from Eucalyptus solely in having a 
striated operculum placed within a distinctly toothed calyx, and in its 
filaments being collected into bundles. The Operculum in Eudesmia, 
from the nature of its striae and their relation to the teeth of the calyx, ap- 
pears to be formed of the confluent petals only: whereas, that of Eucalyp- 
tus which is neither striated nor placed within a distinct calyx, is more 
probably composed, in several cases at least, of both floral envelopes united. 
But in many species of Eucalyptus a double Operculum has been observed ; 
in these the outer Operculum, which generally separates at a much earlier 
