12 
P. retusa (Engelmann in A. Gray Gen. Plant. Amer. Bor. i. 227) 
ultra comparanda sieut P. lutea (Soland. in G. Forst. Plant. Escul. 
12). De restitutione nominum veterum hujus et aliarum stirpium 
vide notam in F. M. Descriptive Notes of Papuan Plants. 
Portulaca napiformis, observante O'Shanesio, ad Rockhampton 
usque extendit. 
Portulaca australis, si veram reeognoso, quoque ad Rockhampton 
occurrit, ubi stamina circiter 20 et stigmata 4—ó. 
Portulaea filifolia interdum radicem crassiuseulam sed forsan 
nunquam tuberosam producit. Loci novi hujus speciei suní: 
Flinders-River, Bowman; Gilbert-River, Armit ; Mueller's Range 
et Bowen's Downs, Birch ; Bockhara-Creek, Leichhardt ; Peak- 
Downs, Slatter ; Herbert's Creek, Bowman ; Barcoo, Howitt ; 
Alice's Spring et Lady Charlotte's Waters, Chr. Giles; Darling's 
River, Neilson ; Dawson's River, F. M. 
Portulaea oligosperma ad flumen Cape's River a Bowman in- 
venta. 
Portulaea bieolor non striete annua est, ut optime observavit 
O'Shanesy, sed ad caulium nodos tubera napiformia solitaria 
gemina vel ternata circiter semipollicem longa interdum nisi szpe 
gignit. Planta afferebatur a Sturt's Creek, F. M. ; Port Darwin, 
Schultz ; Cape's River, Bowman ; Rockingham's Bay, Dallachy ; 
Cleveland-Bay, Gulliver ; Port Denison, Fitzalan ; Tambo, Wuth ; 
Gracemere, O'Sbanesy. Dr. Leichhardt ad Bockhara-Creek plan- 
iam persimilem operculo umbonato legit, qu; si nova infelici 
itineratori dieanda; hane quoque habeo a Bowmanio ad Kock- 
bampton collectam, 
FicorpEx. 
Trianthema humillima. 
Pumila, glabra, foliis minutissimis imbricatis ovatis vel spatu- 
latis szepe acuminatis, floribus in eaule brevissimo 1—3, calycis 
segmentis tenerrime membraneis hyalino pellucentibus setulaceo- 
acuminatis, capsula minuta globosa polysperma uniloculata mem- 
branea, operculo patellari, seminibus minutissimis. 
Inter fluvios Lachlan's et Darling's River ; Burkitt. 
Tota plantula tantum 14-3" alta, massulas depressissimas in 
humo formans. Folia perminuta, sensim in bracteas transientia. 
Bractez sepalis fere conformes, sed minores. Sepala 1—13'" longa, 
pallida, fruetum eonspieue superantia. Genitalia ignota. Capsula 
vix lineam metiens, Semina renato-globosa, nigro-fusca. 
Plantula inter Australianas dicotyledoneas quam maxime exigua, 
loeum inter Trianthemas certum nondum tenens, melius forsan in 
genus proprium (Pomatotheca) post staminum stylorumque reper- 
tionem futuram et propter sepala perfecte soluta est demovenda. 
