HOUN EXPEDITION — BOTAXY. 



121 



Downs and 2179 feet above soa-lovol, wliicli forms tlie south l)oun(lary <if tlif> 

 valloy of tho Walker River at Ternpe Downs, yielded nineteen species only ; they 

 were : — 



Sida corrufi;ata. 

 Ficus platypoda. 

 Dodonaja petiolaris. 

 Ptilotus incanus. 

 Acacia aneura. 

 Thryptoniene Maissomicmii. 

 Eucalyptus terminalis. 

 Poniax umbellata. 

 Aster raegalodontus. 



Solanuni Sturtianuni. 

 Tecotua australis. 

 Postanthei'a Wilideana. 

 Ereniophila Freelin!;i. 

 Calliti-is robusta. 

 Aiidropogon Ijomhycinus. 

 Anthistir'ia ciliata. 

 Aristida calycina. 

 Eriachne scleranthoides. 



Triodia pungons. 



Equally poor results attended the ascents of other ele\ations. Mount Sonder 

 (4497 feet), the highest clevaiion explored, yielded rather more species, and the 

 discovery of two noteworthy plants near its summit was the only recompense foi' 

 an otherwise pi'otith^ss and toilsome day's work. The same remark will apply to 

 Mount (lillen, and a list of the species observed during the ascent, most of which 

 were living near the sunnnit, at not less than about 1000 feet al)Ove the base of 

 its escarpment, here follows : — 



C'leome viscosa. 

 Abutilon otocarpum. 

 Hibiscus Pinonianus. 

 Dodonica petiolaris. 

 Ptilotus incanus. 

 Ptilotus lloixlii. 

 Euxolus iMitchelli. 

 Chenopodium I'hadinostacyhum. 

 [*>oerliaavia dillusa. 

 Indigofera, brevidens-canescens. 

 Cassia eremophila. 

 Acacia dictyophleba. 

 Eucalyptus terminalis. 

 Eucalyptus ganiO]ihylla. 



Didiscus (iillena\ 

 Grevillea agrifolia. 

 Aster megalodontus. 

 Pterocaulon Billai-dieri. 

 Helichrysum ambiguum. 

 llelichrysum Kcmpei. 

 Cioodenia Pamelii. 

 Holanum petrophilum. 

 llalgania cyanea. 

 Pollichia Zeylanica. 

 8p;irtothamnus pidiei-ulus. 

 Callitris robusta. 

 Macrozamia Macdonnelli. 

 Pjriachne sclei'anthoidcs. 



Triodia pungens. 



Tt may be obser\'ed that the inclined slopes and summits of all the elevated 

 masses in the Larapintine region are devoid of soil, the suiface presenting the 



