114 
Encycl. Meth. Suppl. iv. 720; Rem. & Schult. Syst. Veg. iv. 518; 
Gaudich. in Freyc. Voy. Bot. 161 & 430 et tab. 40, fig. 2; Spreng. 
Syst. Veg. i. 500; Dietr. Synops. i. 558; Caulinia antaretica, R. 
Br. Prodr. 339; Posidonia antarctica, Spreng. Syst. i. 181; Ker- 
nera antaretica, Schult. Syst. vii. 170; Granmuellera antarctica, 
Reiehenb. Conspect. 43; Cymodocea antaretica, Endl. Gen. 230; 
Kunth, Enum. Plant. iii. 119; Lehm. Plant. Preiss. ii. 273; J. 
Hook. Fl. Tasm. ii. 42; Thalassia antarctica, F. M. coll. 
Circum totam Australiz extratropicze oram plurimis locis abunde 
proveniens et ejecta. 
Planta pelagia, ramosa, svpe protensa et algis onusta, rarissime 
ut apparet florens et fructifieans.  Ramuli graciles, cicatricibus 
foliorum annulati. Folia disticha, 1-2" longa et totidem lineas 
lata, chartacea, saturate viridia, nigrescentia, subtiliter et immerse 
plurinervia, parum venosa, antice ad basin ligulam adnatam pauci- 
linearem margine cucullato-infraetam apice truncatam gerentia. 
Flores masculi me non visi, solummodo e notis tabulaque Gaudi- 
chaudii hucusque noti; feminei e vagina folio brevi apice plus 
minusve bilobo terminata spicatim emergentes. Pedunculus com- 
presso-teretiusculus, 11-2" longus, vix 1'" latus et 1l" crassus. 
Spiee femines e floribus 3-4 in apice pedunculi alternatim 
dispositis approximatis sessilibus formati. Sepala duo, germen 
conieo-cylindraceum a lateribus cingentia, lanceolato- v. ovato- 
oblonga, crassa, obtusa, dorso convexa, circiter 13" longa. Bractea 
quoad formam sepalis similis, tamen brevior, tandem decidua. 
Stigma apice germinis crassior, indistincte quadrilobatum,  Frue- 
tus cireiter l' longus et 5" latus, sessilis, levis, dorsum versus 
crassior, sensim ventre tenus attenuatus, angulis rotundatus. | Pe- 
ricarpium crassum, carnosum, semini arcte accumbens, extus 
virens. Semen loeunlum explens, absque funiculo affixum. Em- 
bryon lzte virens. 
Najadearum ordo scilicet ampliore sensu agnotus sequentes 
plantas Australianas offert, si eas jam Broyvnio enumeratas exci- 
pias: Potamogeton marinus L., qui in vicinia sinus Port Phillip 
et sinus St. Vincent's Gulf obvenit ; Zanniehellia Preissii (Lehm. Pl. 
Preiss. ii. 3), quie ad sinus St. Vincent's Gulf, Port Phillip et ad 
ostium fluvii Snowy River reperitur, et floribus reapse dioicis, 
masculis geminis altero ni fallor nunquam plane evoluto et anthera 
6-loculari (me ipso primum observata) insignis est; Lepilzna 
australis (J. Drumm. sec. Harv. in Hook, Kew. Miscell. vii. 57), 
quz Australi: occidentali exclusive pertinet et in nostra collectione 
haud exstat; Ruppia maritima, prope sinus regis Georgii, St. 
Vincent's Gulf, Portland Bay, Port Phillip et Moreton Bay, nee 
non in Tasmania reperienda nunc pedunculis elongatis nunc ab- 
breviatis praedita; Zostera uninervis, Forsk. (Z. Noltei Horn., Z 
minor Nolte) prope portum Alberti et in Portu Phillipi obvia. 
a 
Fasciculus XX VIT. editus Majo 1864. 
