ECHINODORUS. ALISMACEÆ (AUCT, M. MICHELI). 49 
ripis laeus frequentissima; floret per fere totos anni menses, War- 
ming), Banda oriental (Tweedie in herb. Kew) ; Paraguay, Villa-Rica 
(Balansa n. 573 in herb. Candoll.). 
4. E. Martiis foliis coriaceis, anguste lanceolatis; scapo erecto 
vel prostrato, radicante; floribus verticillatis, breviter pedicellatis, 
erectis; sepalis post anthesin erectis, staminibus 9, carpellis paucis, 
aristatis, costatis, glandulis lateralibus numerosis. Alisma interme- 
dium Mart. in Róm. et Schult. Syst. 7, p. 1609; Kunth Enum. 3, p. 153; 
Seub. in Mart. Fl. Bras. fasc. 8, p. 106, tab. 14 (Exclus. Echin. 
intermedius Griseb. Cat. pl. Cub.). 
291 Plantz 20-30 cent. alte. Rhizoma breve, crassum, deorsum 
fibras radicales, validas agens, superme fibrillis tenuibus (e foliorum 
effoetorum vaginis) comosum. Folia radicalia 12-18 cent. longa; 
petiolus limbum vix æquans, eostato-striatus, basi vaginans, vagina 
elongata, ita ut petiolus fere alatus videtur; limbus 9-11 cent. longus, 
1-2 cent. latus, coriaceus, anguste lanceolatus, utrinque attenuatus, 
apice breviter acuminatus, basi subarticulatus, ad marginem crispato- 
undulatus, 3-5 nervius, nervis subtus prominentibus, pare infero 
à Costa media, ad dimidiam partem secedente, nervis secundariis 
obliquis, venis eopiosis, fere regulariter anastomosantibus. Scapus 
folia superans, simplex, obscure trigonus, supra dimidiam partem 
verticillos 4-6 remotos gerens; ssepius scapi alterius prostrati 
verticilli vivipari, radices, foliaque agentes. Flores mediocres vel 
parvi, in quoque vertieillo 6-10, pedicellis 7-9 mill. longis, erectis ; 
bracteæ inferne breviter coalitæ, lanceolatæ, longe acuminatæ, 
pedicellos superantes, 15 mill. longæ. Sepala oblonga, obtusa, 
4 mill. longa, 1,5 mill. lata, basi obscure gibbosa, concavo-carinata, 
post anthesin fruetum amplectentia ; petala longiora. Stamina 9, bi- 
seriata, filamenta cylindrica, subulata; antheræ breviores, oblongæ, 
lere basifixæ. Carpella 15-20 in fructum calyce involutum congesta, 
Supra receptaculum parum elevatum capitata, 2 mill. longa, vix com- 
pressa, apice stylo brevi, leviter curvato rostrata, lateraliter 3-4 cos- 
tata, costis filiformibus, inter costas glandulis pluribus ornata. 
Semina punctata. 
5. major; folia submersa, fluitantia, tenuiter membranacea, spa- 
thulata, apice obtusa, ad basim &ensim attenuata, supra petiolum 
articulata; scapus simplex 40-50 cent. longus. Flores et carpella ut in 
varietate 4 
Sons: Av Prodromus III. 2577 4 
