293 



Appendix, — The name Rouseana was used by Mr. Fitzgerald in the Western 

 Mail, Perth, W.A., of 2nd June, 1906. No description of the plant was ever published. 

 A small scale photograph was accompanied by the following words :— " Eucalyptus 

 Rouseana W.V.F., after Dr. F. M. House, is among the tallest of the tropical species, 

 it occasionally reaching a height of 80 feet. This tree usually occurs on well-grassed 

 plains between the Isdell and Charnley Rivers (original description, p. 322)." 



Northern Territory. — I attribute the following four specimens to this species : — 



1. Scientific Expedition of Prof, (now Sir) W. Baldwin Spencer (and others) 

 from Darwin to the Roper River. Gulf of Carpentaria, July-August, 1911. At Cullen 

 Creek Prof. Spencer collected a specimen with glaucous foliage, twigs and buds. 

 Leaves sessile but hardly stem-clasping; flowering while the leaves are still opposite. 

 The leaves as much as 15 cm. long and half as broad. 



Then I have three specimens from the Pine Creek Railway, viz. : — 



2. Collected by Dr. H. I. Jensen, Government Geologist, Darwin, in August, 

 1913. His label reads, " Sessile leaf, white bark (? smooth bark — J.H.M.), small 

 flower and fruit (no fruit available — J.H.M.), rather crooked branches." Close to 



typ e - 



3. A similar specimen from E. J. Dunn, Pine Creek Railway, same date, also 

 in bud and leaf. 



4. Specimen in leaf, bud, and flower from Pine Creek, J. H. Niemann, August 

 1904. This differs from the type, and Nos. 2 and 3, in having distinct pedicels to the 

 flowers. There is a slight umbo to the operculum, probably because the bud is fully 

 developed. The leaves are mostly narrower-lanceolate than the type, and most have 

 distinct, though very short, petioles. (Original description, p. 320). 



In Ewart and Davies' " Flora of the Northern Territory," p. 311 (1917), I quoted 

 the following additional localities : — 



381. Burrundie (McKinlay River flats). 



359. " Snow-white bark, smooth-barked tree, growing singly or in branches 

 like Mallee. Medium size. It is crooked on poor soil, straighter on Burrundie alluvial 

 soil." Burrundie. 



345. -' Particularly partial to flooded clay flats. Like many trees it loses its 

 leaves in the dry season." Pine Creek. 



379. " Tree up to 40 feet high, smooth white bark." On flats, Pine Creek to 

 Wandi. 



375. Wandi. Non-glaucous. ' 



380. Mount Diamond to Wandi Flats. 

 413. Umbrawarra. 



Dr. Jensen says that the forms from the hills and from the flats may look very 

 different, which may be due to a stunting of the former, which have a much smaller 

 leaf and fruit. 



