74 



OX A NEW SPECIES OR FORM OF EUCALYPTUS. 

 By Cuthbert Hall, M.D.. Ch.M., Parramatta. 



(Plate Ixxv.) 



Eucalyptus Marsdeni, f. vel sp.nov. 



Arbor, 30'-50' altitudine, eortice fibrose inferne superne kievi, 

 foliis petiolatis, lanceolatis, acuminatis, falcatis, obliquis, fere 

 membraneis; cyiiiis axillaribus; pediiiiculis 4'" loiigis, pedicellis 

 Ih" ', operculo hemisplia?ric'o, uniboiiato; fructibus hemisphiiericis, 

 valvis par u 111 exsertis. 



A tree, 30 feet high in specimen observed, and probably would 

 attain a height of 60-80 feet when fully grown. 



Seedling. — Cotyledons ver}^ small, orbicular-reniform, entire, 

 purplish on undersurface, glabrous. Leaves oj^posite, decussate, 

 obtuse, shortly petiolate, lanceolate, venation pinnate, rather 

 oblique, edges sinuate. Stem reddish, and both it and the leaves 

 covered with fine, stellate hairs. 



Jdvenile leaves of a more advanced stage than in the small 

 seedling are alternate, petiolate, narrow-lanceolate, acuminate, 

 glabrous. Mature leaves alternate, petiolate, lanceolate, falcate, 

 acuminate, obli(jue, greyish on dryiiig, almost membranous, occa- 

 sionally shiny, and having a pleasant, aromatic scent. Lamina? 

 6"-8" long by j" broad, petiole slender, .V" long. Lateral veins 

 oblicjue, alternately fine, intramarginal vein fairly distant from 

 €dge. 



Inflorescence axillary, peduncles h' long, with rather few 

 flowers in head, 6-9; buds turbinate, 5'" long, operculum hemi- 

 spherical, shortly acuminate. Stamens all fertile, anthers kidney- 

 shaped. Fruits hemispherical, 3'" in diameter, rim domed, valves 

 small, slightly exserted. 



Jiark of an unusual character for a Eucalypt. While it falls 

 in the group of the stringy-barks, yet it is laminated, with a sort 

 of ochreous deposit on the outer surface of each layer. Inner 



