454 OCLXVIL HYDROCHARIDEJE. [Stratiotec, 
Species 3 v. 4, Burm et Africm tropic incole, inelusis, prieter speciem Wallichianam Burmani- 
cam, 2 v. 8 Africanis, His verisimili includendz ZA i logfoliun, Planch. in Ann. Nat. 
Hist. ser. 3, xi. 81, Ottelia lancifolia, A. Rich. Fl. Abyss. ii. 280, t. 95, et, Ottelia scabra, Baker in 
Trans. Linn. Soc. xxix. 161, spathis femineis jam defloratis pro hermaphroditis descriptis. 
Specimina & Africana spathis oc-floris adsunt plura in Herb. Kew. 
1l. Stratiotes, Linn. Gen. n. 687.—Spathze unisexuales, diphyllz, bracteis complicatis 
xteriore interi. plectente. Flores d intra spatham 2—o, singuli bracteola spathacea 
complicata stipati, pedicello longo e spatha exserti. Perianthium 2-seriatum, 3-merum ; 
segmenta exteriora ovata v. oblonga, membranacea; interiora petaloidea, multo 
majora, lata, undulato-erispa. Stamina co (11-15), processubus numerosis brevioribus 
(staminodiis?) cincta, fil iis basi planatis; antherz erects, lineares, lateraliter 
dehi istilli rudimenta 0. Flos 9 in spatha solitarius, breviter pedicellatus. 
Perianthium supra ovarii rostrum mari simile nisi paullo minus. Staminodia oo, linearia, 
stylis breviora. Ovarium oblongum, szepius e spatha recurvum in rostrum longe attenu- 
atum ; placentis valde intrusis in centro loculi contiguis sub-6-loculare ; styli 6, lineares, 
semi-2-fidi. Fructus pedicello recurvo e spatha lateraliter exsertus, ovoideus, acuminatus, 
pericarpio carnoso. Semina abortu seepius pauca, testa crassiuscula pulpa induta ; embryo 
conformis, plumula intra fissuram lateralem recondita. — Herba perennis, submersa, caule 
brevissimo 'stolonifero. Folia conferta, omnia sessilia, submersa, lineari-lanceolata, 
carnosula, acuta, margine dentibus brevibus pungentibus serrata.  Seapi breves v. 
elongati, spatham supra aquam exserentes. 
Species 1, Europea. L. C. Rich. in Mem. Inst. Par. 1811, 24, 64,4. 6. Nolte, ** Stratiotes et 
Sagittaria" Kopenhagen, Ato. t. 1. Nees, Gen. Fl. Germ. Monocot, ii. n. 51. — Reichb, Ic. Fl. Germ. 
t. 61. 
Tarsus IV. "THALASSIEX. 
12. Enhalus, ZL. C. Rich. in Mem. Inst. Par. 1811, 64.—Spathze unisexuales, diphyllze, 
bractea exteriore interiorem amplectente. Flores d intra spatham numerosi, minimi, in 
taculo oblongo ped Perianthium 2-seriatum, 3-merum; segmenta utriusque 
seriei qualia, interioribus magis petaloidei Stamina 3, ex Zollinger segmentis 
exterioribus, ex Griffith interioril opposita, fil tis brevissimis ; antherz oblonge, 
erectze, lateraliter deh Pistilli rudimentum 0. Flos fcemi intra spatham mari 
longiorem solitarius, sessilis. Perianthium ad apicem rostri ovarii 2-seriatum, 3-merum ; 
segmenta exteriora oblonga, imbricata; interiora multo longiora, linearia, spatham ex- 
cedentia, subvalvata, extus pulcherrime undulato-plicata, int plicis i 
notata. Staminodia 0. Ovarium longe rostratum, l-loculare, placentis valde intrusis in 
centro fere contiguis sub-6-loculare ; sStylorum rami stigmatosi 6-12, lineari-filiformes ; 
ovula in quaque placenta pauca, 1-seriata, anatropa. Fructus spatha patente v. marces- 
cente suffultus, ovoideus, placentis farinoso-carnosis fere in loculos 6 divisus. Semina 
pauca, magna, testa cellulosa; embryo conformis; cotyledon exserta, subconica, late- 
ralis, bilabiata; plumula recondita magna polyphylla, foliolo exteriore a basi lineari 
apice serrulato.—Planta marina, submersa, rhizomate crasso fibris foliorum detritorum 
crinito. Folia longissima, angusta, plana, per 2-3 vagina tenuiter membranacea stipata, 
ginibus i is, apice rotundata denticulataq Spath: d breves, compresscw, 
vix ex arena exserta ; flores sub anthesi à pedicello soluti, in aque superficie natantes. 
Scapus 9 primum erectus elongatus, per anthesin spiralit tract l post 
fecundati iterum fructum mat 
Species 1, ad oras maris Indici a Zeylania usque ad Australiam extensa. Linmm. f. Suppl. 268 
(Stratiotes). Griff. Notul. iii. 175; Ic. Pl. Asiat. t. 249,260. Zoll. Verz. Ind. Archip. fl. ii. 69. 
Richard plantam non vidit et genus condidit ad descriptionem Linnzi qui stylorum ramos seu 
stigmata pro antheris habuit. Specimina nostra plura, in variis locis lecta, flores foemineos przebent, 
sed ob pressionem male inare potuimus, Ch supra datum precipue ex descriptione 
fusiore Griffithii et notis Zollingerianis sumpsimus, 
