168 
read before the Linnean Society of London), and holds, likewise, the 
mean between the proportions ascertained by Robert Brown for Van 
Diemen’s Land and New South Wales; while in Western Australia, 
as well as in South Australia, including the country there to the thirty- 
first degree South latitude, the number of the Dicotyledonee exceeds 
in the proportion of nine to two that of the Monocotyledonee. 
“The Cryptogamic plants, however, favoured by a more humid 
atmosphere, are twice as numerous in our province as in the last-men- 
tioned Colonies, being about equal to a third of the Dicotyledonez. 
“Excluding all Cryptogamic plants, not less than 200 species, as 
testified by the Index, are proved to be as yet undescribed. Some of 
these occurred to me in South Australia; and the descriptions of 
several others will probably find a place in Dr. J. Hooker’s forthcom- 
ing ‘Flora of Van Diemen’s Land.’ ‘These novelties enabled me 
already to establish seven new genera (Pseudomorus, Basileophyta, 
Pheoleuca, Tetracheta, Muinuranthus, Psoraleopsis, and Rhytido- 
sporum). 
“ The descriptions, not only of almost all the new plants, but also 
critical notes and observations on the phytogeographical range of the 
species already known, will be forwarded to Sir William Hooker before 
my departure for the interior, and will afterwards constitute, together 
with the scientific elucidations of such plants as may be added during 
the ensuing season from the yet botanically unexplored districts, the 
foundation of ‘ The Flora of Victoria.’ 
“That the vegetation of the southern parts of our province accords 
greatly with the Tasmanian Flora may be demonstrated by the fact 
that more than half of all the enumerated species are known to inha- 
bit Van Diemen’s Land, amongst them many of great interest, which 
had been considered as belonging exclusively to that island, some 
adding even new genera to the Flora of New Holland (Fagus Cun- 
ninghami, Bauera Billardierii, Tasmania aromatica, Weinmannia 
biglandulosa, Pleurandra monadelphia, Ranunculus Gunnianus, Cap- 
sella Australis, Pittosporum bicolor, Rhytidosporum procumbens, 
Rhytidosporum Stuartianum, Boronia dentigera, Eriostemon verru- 
cosus, Correa Backhousiana, Meionectes Brownii, Bossiza horizon- 
talis, Brachycome decipiens, Celmisia astelifolia, Scazevola Hookeri, 
Monotoca lineata, Lissanthe montana, Lissanthe ciliata, Prostanthera 
rotundifolia, Myosotis suaveolens, Wilsonia Backhousii, Gentiana 
Diemensis, Sebza albidiflora, Hakea microcarpa, Podocarpus mon- 
tana, Phyllanthus Gunnii, Micranthea hexandra, Diplarrhena Morea, 
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