Triglochin. | NAIDACEAR. 125 
Blowers unisexual, axillary, nearly sessile. Perianth of 3 hyaline 
scales. Stamens 3; anthers sessile, cohering by. their backs 
into acolumnar mass .. ee ue a, .. 5, LEPILAENA. 
** Stems creeping in sand or mud in salt water. Leaves ribbon-like, flat, nerved. 
Blowers unisexual, enclosed in the membranous sheathing base of 
a floral leaf 3 ae : : .. 6. ZOSTERA. 
see. KVew DTrdewr — Neuttoml! 72. 
1. TRIGLOCHIN Linn. oo pousete. Pharek 
Perennial marsh herbs. Roots fibrous. Leaves all radical, fliform™ aye wre ? 
rush-like, flat or terete. Scapes slender, naked, erect, bearing a raceme or 
spike of small green hermaphrodite flowers. Perianth-segments 3 or 6, 
herbaceous, concave, deciduous. Stamens 6, inserted on the base of the 
perianth-segments ; filaments very short; anthers didymous, extrorse. 
Carpels 6, distinct or more or less connate; stigmas penicillate; ovules 
solitary in each carpel, basilar, erect, anatropous. Fruit of 3 or 6 free or 
connate coriaceous nutlets separating from a central axis. Seeds erect, 
cylindric or ovoid, terete or compressed; testa membranous; embryo 
straight. 
About 12 species are known, spread through most temperate or subtropical regions, 
but especially plentiful in Australia. Both the New Zealand species are widely 
distributed. 
Triglochin is often regarded as forming (with 3 other small genera) a distinct order 
(Juncaginaceae), but for the purposes of this work it appears most convenient to merge 
it with the Naiadaceae. 
Scape 3-10in. high. Fruit subglobose 32 RS 7+ de PD -abrraia, 
Scape 6-24 in. high. Fruit clavate .. me is .. 2. T. palusire. 
Avy) f 
1. T. striata Ruiz and Pav. Fl. Per. iii, 72; var. filifolium Buch. 
Index Crit. (1868) 59.—Rhizome short, stoloniferous. Leaves numerous, 
very narrow-linear or almost filiform, semi-terete, variable in length, shorter 
or rather longer than the scape. Scape 3-10in. high; raceme usually 
occupying about 4 the length. Flowers numerous, shortly pedicelled, 
minute, about ;4,in. diam. Outer perianth-segments broadly ovate ; inner 
smaller and narrower. Perfect stamens 3, at the base of the outer segments ; 
three inner abortive, without pollen, sometimes altogether wanting. Fruit 
globose, #4 in. diam., of 3 perfect carpels separating from a central axis - | 
and leaving 3 scale-like barren ones, attached to it—Buchenau in Pflanzenr. 
iv (1903) 10; Cheesem. Man. N.Z. Fl. (1906) 747. TT. striata Benth. Fl. 
Austral. vii (1878) 166. T. triandra Mich. Fl. Bore Am. i (1803) 208 ; 
Hook. f. Fl. Nov. Zel. i (1853) 236; Handb. N.Z. Fl. (1864) 278. 
T. flaccida A. Cunn. Precur, (1836) n. 231; Raoul Choix (1846) 41. 
LT. filifolium Sieb. ex Spreng. Syst. iv (1825) 142; Hook. Ic. Plant. (1843) 
t., 579. 
NortH anp Sovutu Istanps, Stewart Isuanp, CHatHam Isnanps: Abundant 
throughout in marshes near the sea; also inland in various localities in the thermal- 
springs district from Te Aroha and Rotorua to Taupo and Tokaanu. October—January. 
The New Zealand variety is also found in Australia, Tasmania, and Chile; the 
typical state ranges throughout almost the whole of North and South America, and 
also occurs in South Africa. 
2. T. palustris Linn. Sp. Plant. (1753) 338.—Rhizome short, stolonifer- 
ous. Leaves all radical, much shorter than the scape, narrow-linear or 
filiform, semiterete, upper surface faintly grooved. Scape slender, 6-24 in. 
