120 VEGETATION OF THE GREAT AUSTRALIAN BIGHT. 
(so at least they seem to me) as P. rosea, Desf., and P. Preslii, Spr. 
Certainly P. rosea is far more allied to P. major, Jacq., than to P. 
Preslii, if, at least, characters, habit, and aspect are to have any 
weight; and, if not, how are we to judge any species? In the 
* Florula Adenensis, Dr. T. Anderson writes, under the name of P. 
triflora, L., no less than twelve reputed species, on which combina- 
tion Mr. Edgeworth remarks (Journ. Linn. Soc. vi. 199) :—“ I have 
examined the original specimens in the Hermann herbarium in the 
British Museum, have carefully compared them with the numerous 
specimens in the Kew herbarium, = have satisfied myself that there 
are three or four distinet species." So far as I have been able to com- 
pare some of the Indian species mentioned by Dr. Anderson, with 
Kotschy’s Nubian ones distributed by the Unio Itineraria, I mus 
express my entire dissent from Dr. Anderson’s views. The late Mr. 
Webb, too, (Fragm. Florule ZEth.-/Egypt. 32), kept these latter plants 
distinct. Again, whilst Bunge (Reliq. Lehmannian:e, 45) asserts P. 
Sibirica, L., and P. tenuifolia, Willd., to be beyond all doubt distinct, 
both Ledebour and more recently Regel (Radde, Reis. in Ost-Sibirien, 
Botanische Abth. Bd. 1 Heft 2. p. 277) with equal confidence unite 
them. . 
VEGETATION OF THE GREAT AUSTRALIAN BIGHT. | 
The vegetation of the country around the Great Australian Bight is 
as yet so imperfectly known, that the limits to which the bulk of West 
Australian plant extends eastwards, aud the line to which the inland 
flora from the Burdekin, Darling, and Murray Steppes advances to the- 
west remain to be ascertained; and any, even the most trifling addition 
to our knowledge on this point cannot but be acceptable. Mr. E. A 
Delisser, an explorer, who, on several oceasions has faced the obstacles 
which the aridity of the Bight country opposes to the progress of 
ure and who lately advaneed from the head of the Great 
.  Bight in a north-west direction over level, not materially scrubby, but 
fissi waterless country, brought with him the following plants 
ES . from the remotest parts reached by him, which show the vegetation to 
= : be that of the eastern eem and not that of West Australia i= :— 
