152 FOREST CULTURE AND 
minose, and Proteace, in south-west Australia, are 
also charming. The introduction of all these into 
European conservatories might be made the object of 
profitable employment. Annual herbs of extreme 
minuteness, belonging chiefly to Compositz, Umbelli- 
fer, Stylidez, and Centrolepidex, are here, as in oth- 
er parts of extra-tropical Australia, in their aggregate 
more numerous than minute phanerogamic plants in 
any other part of the globe. A line of demarcation 
for including the main mass of the south-west Austra- 
lian vegetation may almost be drawn from the Mur- 
chison River, or Shark Bay, to the western extremity 
of the Great Bight; because to these points penetrates 
the usual interior vegetation, which thence ranges to 
Sturt’s Creek, to the Burdekin, Darling, and Murray 
rivers, while the special south-west Australian flora 
ceases to exist as a whole beyond the limits indicated. 
The marine flora of south-west Australia is like- 
wise eminently prolific in specific forms, perhaps more 
so than that ofany other shore. Many of the alge are 
endemic, others extend along the whole southern coast 
and Tasmania, where again a host of species proved pe- 
culiar ; some are also extra-Australian. The whole 
eastern coast contrarily, and also the northern and the 
north-western, with the exception of a few isolated 
spots, suchas Albany Island, contrast with the southern 
coast as singularly poor in alga. Ina work exclusively 
devoted to the elucidation of the marine plants of Aus- 
tralia—a work which as an ornament of phytograph- 
ic literature stands unsurpassed, and which necessitat- 
ed lengthened laborious researches of its illustrious 
author, the late Professor Harvey, here on the spot— 
the specific limits of not less than eight hundred alga 
