Zavnichelliea.] OXOV. -NAIADAGEJE., 1017 
carpella 3, distincta, sessilia v. breviter stipitata, in stylum brevem v. elongatum 
attenuata, stigmatibus oblongis v. spathulatis ; ovula solitaria, ab apice loculi pendula, 
orthotropa. Carpella matura oblonga, stylo apiculata, indehiscentia, pericarpio coriaceo. 
Semen oblongo-cylind testa b ; embryo macropodus, elongatus, 
extremitate cotyledonari ter inflexa, radicula obtusa.— Herbe submersm, tenerrim:e, 
rhizomate repente. filiformi nodoso-artieulato, caulibus pit ramosis capillarii 
Folia ad nodos congesta, tenuissima, integerrima v. serrulata, basi lata vaginantia, vagina 
in ligulam elongatam simplicem v. 2-fidam producta, floralibus ad vaginas reductis. Flores 
minuti, 
Species 3, in aquis salsis et duleibus Australie vigentes, —Zenth, Fl. Austral, vii. 179. 
Tarsus VI. ZOosTEREJE. 
19. zostera, Linn. Gen. n. 1092. (Alga, Lam. Fl. Fr. ed. i. iii. 539.)—Flores in eodem 
v. diversis spadicibus complanatis monoici, secundi. Perianthium 0. Fl.d: Anthera 1, 
in spadicem prona, dorsifixa, cylindracea, curva, utrinque obtusa, 1-locularis, membranacea, 
rima antica dehiscens ; pollen confervoideum. Fl. 9: Carpellum solitarium, in spadicem 
pronum et supra medium puncto aflixum, in stylum brevem subulatum attenuatum, stig- 
matibus 2 capillaribus ; ovulum solitarium, ab apice loeuli pendulum, orthotropum. 
Carpellum maturum lageniforme, I pendul irregulariter | ruptum. 
Semen pendul :blongum v. subglob , testa. firme membranacea, striata ; embryo 
ellipsoideo-oblongus, antice profunde longitudinaliter sulcatus, extremitate cotyledonari 
medio. sulco. imposita caudiformi sigmoidea.—Herbre hi tenui repente 
ad. nodos radicante, caulibus simplicibus v. ramosis gracilibus foliosis, ramis intricatis. 
Folia disticha, anguste linearia, 1-0 nervia, basi ginantia, vaginse stipuleef mar- 
ginibus inflexis.  Spadix linearis, foliiformis, marginibus nudis v. bracteis oblongi 
instructis, primum in spatha elongata apice in folium producta inclusus. Flores in 
superficie spadicis 2-seriati, alterni, oblique oppositi, stylis 9 intus spectantibus. 
Species 4, marium temperatarum orbis veteris incole.  Kunth, Enwm. Pl. iii, 116. Walp. Amm. 
vi.l. Lanessan im Assoc. Franc. Sc. Congrés, Nantes, 1875. Benth. Fl. Austral. vii. 175. — Aschers. 
in Linnea, xxxv. 165, et in Nuov. Giorn. Bot. Ital. ii. 162. Geertn. Fruct. i t. 19. Schnizl. Iconogr. 
1.1. Nees, Gen. Fl. Geri, Monocot. ii. n. 43. Mirb. in Ann. Mus. Par. xvi. t. 19. .Reichb, Ic. 
Fl. Germ. vii. t, 2 ad 4. Ehrenb, et Hempr. Symb. t. 5, 6. 
14. Phyllospadix, Hook. FI. Bor. Am. ii. 171, t. 186.—Flores dioici, in spadicibus com- 
planatis secundi. Perianthium 0. Fl: Anthera in spadicem prona, dorsifixa, cylindra- 
cea, curya, utrinque obtusa, 1-locularis, membranacea, rima antica dehiscens ; pollen con- 
fervoideum. Fl. 9 : Carpellum solitarium, late ov id datum, a dorso comp basi 
intrusa spadici insertum, in stylum brevem tt t igmatibus 2* capillaribus ; 
ovulum ab apice loculi pendulum, orthotropum. Fructus late sagittato-cordatus, basi 
utrinque acute product jaceus, indehi: emen pendul obtuse rhomboid 
paullo à dorso p testa t ; embryo semini conformis, dorso rotun- 
datus, ventre obscure 2-lobus, extremitate cotyledonari parvula linguiformi inter lobos 
posita decurva.—Herb:e submersse, rhizomate tuberoso lobato reliquiis rigidis fibrosis 
foliorum vetustorum onusto ; caulibus gracilibus simpliciusculis elongatis. Folia longe 
angusteque linearia, coriacea, basi longe angusta vaginantia, vaginis sursum in ligulam 
brevem producti ginib ipuliformib Spadix linearis, dorso nudus, marginibus 
Practeis oblongis imbricatis primum floribus i demum patentibus onustis, 
spatha elongata apice in folium producta primum inclusus. Flores in spadice 2-seriati, 
alterni, oblique oppositi, fcemi igmatibus intus spectantib : 
Species 2, ore Americre boreali-oeeidentalis incole. S. Wats, Bot. Calif. i. 192. Rupr. in 
Mem. Acad. Petersb. ix, t. 1, 2. 
*anth 
