CXOII. LEMNACE.E. : 1001 
CONSPECTUS GENERUM. 
1l. LxwNA, Flores rimis marginalibus frondis inserti. Stamina 1-2, antheris 2-locularibus. 
Plantule radieibus instructee.— Reg. temp. et trop. * 
2. Worrri. Flores e superficie frondis erumpentes. Stamen 1, anthera l-loeulari. Plan- 
tule arhize.— Europa, Ind. or., Africa, Amer. 
GENERA EXCLUSA. 
. Pisrra, Linn., et AuBnosiwA, Linn. a Lindleyo aliisque. Lemaaceis associatz, inter Aroideas 
quizerendz. 
1. zemna, Linn. Gen. n. 1038. —Fl. d 2-ni, alter altero p j Stamen 1, fil t 
filiformi v. medio dilatato recurvo ; anthera 2-locularis, globosa, loculis rimis transversis 
lel tibus ; pollen glol i 1. Fl.9 solitarius, masculo contiguus. Ovarium 
1-7-ovulatum ; ovula anatropa i-anatropa v. orthotrop Utrieulus 1-7-spermus. 
Semina erecta v. horizontalia ; embryo conieus v. ovoideus.—Herbul:e ovoidez v. lanceo- 
lae, radicibus instructze, basi v. a latere proliferw. Flores rim:e marginali herbule inserti, 
spatha minuta primum inclusi. 
Species 7, aquarum duleium totius orbis temperatze et tropicz incola. Genus in seetiones 3 
divisum :— P 
1l. Eulemna. Ovulum 1, orthotropum v. semi Semen 
p le, albumine copioso. 
Radix solitarius. —Hegelm. Lemn. 184, sp. 1—6, f. à. (Lemna, sect. Hydrophace). Schkuhr, Handb. 
1.281. Brongn. in Guillem. Archiv. ii. t. 12, J. 1. Hook. Fl. Lond. t. 120. Lam. Illustr. t. 147, 
Jf.1,2. Reichb. Ic. Fl. Geri. vii. t. 14, 19. Nes, Gen. Fl. Germ. Monocot. ii, 2. 42. Griff. Ic. Pl. 
siat. t. 262 ad 264. 
2. Telmatophace. Ovula 2-7, erecta, anatropa. Semina erecta, anatropa, albumine parco v. 
0. Radix solitarius. Hegel. Lemn. 145, t. 11, 12, 13,/. 1-9. Schkuhr, Handb. t. 281. — Hook. Fl. 
Lond. t. 149. Hook. Bot. Misc. t. 42. Brongn. in. Guillem. Archiv. 1, t. 6, ii. 4. 12, /. 2. Lam. 
lilustr, (. 147, f. 3. — Reichb. Ic. Fl. Germ. vii. &. 14. — Nees, Gen. Fl. Germ. Monocot. iii. n. 42. 
TkrxATOPHACE, Schleid. in. Linnea, xiii. 391. 
3. Spirodela. Ovula 2, erecta, anatropa. Fruetus . . . Radiees plurimi. SeAkuhr, Handb. 
4.281. Lam. Illustr. t. 147, f. 4. Reichb, Ic. Fl. Germ. vii. (. 19. SPIRODELA, Schleid, in Linnea, 
xiii. 391. Hegel. Lemn. 147, 0. 16. — á 
9. wrolfüa, Horkel ; Schleid. in. Linn, xiii. 389. (Horkelia, Reichb. ex Bartl.. Ord. 
Nal.'16. Grantia, Griff. Notul. iii. 226 ; Ic. Pl. Asiat. t. 266 ad 268. Bruniera, Franchet. 
in. Billotia, 1864, 25.)—Fl. d solitarius. Stamen 1, filumento brevi v. elongato ; anthera 
slobosa, 1-locularis ; pollen leve. Fl. 9 solitarius, stamini cont Ovarium glob 
v.ovoideum ; ovulum 1, orthotrop Utriculus sph:eri Semen glob , erectum, 
testa crassa, albumine parco; embryo oblongus.—Herbule minutissimce, planiuscul:e 
globosce v. subtus in conum i 1 longat ducts, arhizw, basi proliferz, Flores 
rime superficiali herbulre inserti ; spatha 0. 
Species 12, in Europa, India orientali, Africa tropica et America tropica et temperata detect;e. 
IHgelin. Lemn. 121. Welw. in. Seem. Journ. Bot. 186, 110, t. 29. Lain. Illustr. t. 147. (Lemna). 
Reichb. Ie. Fl. Germ. vii. t. 14 (Lemna). Hoffm. in. Hav. et. Vriese, Tüjdschr. iv. 282, 1. 3, et. in 
Ann. Sc. Nat, ser. 2, xiv. 223, t. 10 ad 12, cacl. fig. 6-8 ct 9, d-n. 
P 
— Onmpno CXCHI. TRIURIDEZ. 
Lindl, Veg. Kingd. 213 
Flores monoiei dioici v. rarissime polygami. Perianthium 3-, 4-, 5-, 6- v. 8-partitum v. 
-lobatum ; segmenta lobive 1-seriata, zequalia v. insequalia, ovata subulata lanceolata v. e 
basi lata abrupte longe caudata, wstivatione valvata, apieibus inflexis v. induplicatis, post 
"anthesin persistentia reflexa. Fl. d': Stamina 2, 3, 4 v. 6, receptaculo v. ima basi peri- 
