72 
P. retusa (Engelmann in A. Gray Gen. Piant. Amer. Bor. i. 227) 
ultra comparanda sicut P. lutea (Soland. in G. Forst. Piant. Escul. 
72). De restitutione nominum veterum hujus et aliarum stirpium 
vide notam in F. M. Descriptive Notes of Papuan Plants. 
Portulaca napiformis, observante 0’Shanesio, ad Rockhampton 
usque extendit. 
Portulaca australis, si veram recognoso, quoque ad Rockhampton 
occurrit, ubi stamina circiter 20 et stigmata 4-5. 
Portulaca filifolia interdum radicem crassiusculam sed forsan 
nunquam tuberosam producit. Loci novi hujus speciei sunt : 
Flinders-River, Bowman ; Gilbert-River, Armit; MuellePs Range 
et Boweifs Downs, Birch ; Bockliara-Creek, Leichhardt ; Peak- 
Downs, Slatter ; Herbert’s Creek, Bowman ; Barcoo, Howitt ; 
AI ice’s Spring et Lady Charlotte’s Waters, Chr. Giles ; Darling’s 
River, Neilson ; Dawson*s River, F. M. 
Portulaca oligosperma ad flumen Cape’s River a Bowman in¬ 
venta. 
Portulaca bicolor non stricte annua est, ut optime observavit 
0’Shanesy, sed ad caulium nodos tubera napiformia solitaria 
gemina vel ternata circiter semipollicem longa interdum nisi saspe 
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, VVuth ; 
Gracemere, 0’Slianesy. Dr. Leichhardt ad Bockliara-Creek plan¬ 
tam persimilem operculo umbonato legit, quae si nova infelici 
itineratori dicanda ; hanc quoque habeo a Bowmanio ad Rock- 
bampton collectam. 
Ficoide.e. 
Triantliema humillima . 
Pumila, glabra, foliis minutissimis imbricatis ovatis vel spatu- 
latis saepe acuminatis, floribus in caule brevissimo 1-3, calycis 
segmentis tenerrime membraneis hyalino pelllicentibus setulaceo- 
acuminatis , capsula minuta globosa polysperma uniloculata mem¬ 
branea, operculo patellari, seminibus minutissimis. 
Inter fluvios Lachlaiffs et Darling’s River ; Burkitt. 
Tota plantula tantum 1-|— 3"' alta, massulas depressissimas in 
humo formans. Folia perminuta, sensim in bracteas transientia. 
Bracteae sepalis fere conformes, sed minores. Sepala 1—1 j" longa, 
pallida, fructum conspicue superantia. Genitalia ignota. Capsula 
vix lineam metiens. Semina renato-globosa, nigro-fusca. 
Plantula inter Australianas dicotyledoneas quam maxime exigua, 
locum inter Trianthemas certum nondum tenens, melius forsan in 
genus proprium (Pomatotlieca) post staminum stylorumque reper¬ 
tionem futuram et propter sepala perfecte soluta est demovenda. 
