23 
prestantis, scientie et amicis suis numerosis nunc prematura 
morte erepti, pia mente sacratum. 
Maundia triglochinoides. 
In paludibus prope Durando, originem versus fluvii Brisbane. 
Hill & Mueller. 
Herba ulnaris v. paucipedalis. Folia longitudinem scapi sub- 
zquantia, semunciam circiter lata supra leniter subtus valde con- 
vexa, apicem versus compresso-trigona. Scapi aphylli. Spies 
multiflore 2-4" longs, floribus demum remotiusculis. Sepala 
carnosa subrotunda breviter unguieulata ecireiter 1" longa, duo 
laterali-infera, duo altera laterali-supera, sed frequenter obliterata. 
Anthere ochroleuez subbiseriatze 1^ longs, breviter acuminata. 
Fructus sessiles circiter 4" longi, alis dorsalibus angustis incurvis 
basi breviter in angulum carpidia jungentem productis. Semina 
matura hucusque ignota. 
ALISMACEJE. 
Alisma acanthocarpum. 
Petiolis articulatis folio multo longioribus, foliis ovato-cordatis 
obtusis, sinu baseos angustissimo, panicule ramis subangulatis, 
bracteolis lanceolatis acuminatis, carpidiis 2-10 magnis spinosis, 
siccis dorso indistincte quadricostatis. 
In stagnis ad flumen Victoris ejus ostium versus. 
Herba erecta 2-4. Scapus teres inferne angulatus superne stri- 
atus. Petioli inferne teretes superne teretiusculi striati. — Vagince 
hyalino-membranaces integerrims. Folia pleraque 3-5" longa, 
13-nervia, utrinque nitidula, nervis venisque subtus prominenti- 
bus, lobis obtusis. Involucri foliola demum revoluta. Petala 3 
alba late ovata acuta cireiter 3" longa.. Stamina 6. Filamenta 
alba subulata petalis breviora. Anthers 1" longs ovate dorsifixae 
virides. Pollen ochroleucum. Styli 'Subulato-sefacei circiter 
lineam longi. Carpidia ovato-reniformia, spinis duabus apieali- 
lateralibus conicis patentibus, 2-3 brevioribus dorsalibus inzquali- 
bus armata. 
Alisma oligococcum. 
Petiolis inarticulatis folio parum longioribus, foliis cordatis 
obtusis, sinu baseos angusto, panicule ramis acute angulatis 
bracteolis lanceolato-subulatis, carpidis binis vel rarius pluribus 
inermibus, siccis dorso obscure quadricostatis et minutim tuber- 
culatis. i 
In paludibus prope Moreton Bay. W. Hill. Ad flumen Vic- 
torie ejus originem versus ; in vicinia sinus Gulf of Carpentaria. 
Pracedenti propinqua. 
