_ 'TRIGLOCHIN SCHEUCHZERIACE 677 
SCHEUCHZERIA 
segments in 2 series. Stamens 3-6, with short or elongated 
filaments and mostly 2-celled extrorse anthers. Carpels 3-6, 
1- or 2-ovuled, more or less united until maturity. Seeds ana- 
tropous, without albumen. Embryo straight. 
1 Triglochin Leaves all radical: flowers bractless, in a spike-like raceme 
terminating a jointless scape: ovaries 3-6, united until maturity. 
2 Scheuchzeria Flowers bracteate in a loose raceme upon a leafy stem: 
ovaries 3, nearly distinct, at length divergent. 
1 TRIGLOCHIN L. Sp. 338. 
Perennial herbs with all radical terete or semiterete ligulate 
leaves with membranous sheaths, and perfect flowers in a naked © 
raceme upon a scape-like peduncle. Perianth herbaceous, decidu- 
ous, of 3 small concave sepals and as many similar petals. Sta- 
mens 3 or 6, with oval nearly sessile anthers. Ovaries 3-6-celled 
with sessile stigmas and solitary ovules, separating at maturity 
from the central axis into as many distinct carpels. Seeds ana- 
tropous, erect, with membranous testa. Embryo straight, with 
minute included plumule. 
T. maritima L. Sp. 339. Rootstock without stolons, often sabligne- 
ous, the caudex thick, mostly covered with the sheaths of former leaves: 
scapes stout, nearly terete, 14-2 feet high: leaves semiterete, usually 
about 1 line wide, shorter than the scape: raceme elongated, often 16 
inches or more long: pedicels decurrent, 1-144 lines long: segments of the 
perianth 6, each with a large sessile anther at its base: pistil of 6 united 
carpels: fruit oblong or ovoid, 244-3 lines long, obtuse at base, with 6 re- 
curved points at the summit: carpels 3-angled. In saltmarshes and saline 
places, California to Alaska and across the continent: also in Europe. 
T. palustris L. Sp. 338. Rootstock short, oblique, with slender fu- 
gaceous stolons: leaves linear, shorter than the scapes, 5-12 inches long, 
tapering to a sharp point: scapes striate, 8-20 inches high: racemes 5-12 © 
inches long: pedicels capillary, in fruit erect-appressed, -214-3 lines long: 
perianth segments 6, greenish-yellow: anthers6, sessile: pistil of 3 united 
carpels: stigmas sessile: fruit linear or clavate: ripe carpels separating 
from the axis and becoming suspended from its apex, the axis 3-winged. 
In bogs, Idaho to Alaska and the northern Atlantic States: also in Europe. 
2 SCHEUCHZERIA L. Sp. 338. 
Bog perennials with creeping rootstocks, erect leafy stems flat- 
ish leaves and small flowers in a loose terminal raceme. Perianth 
of 3 oblong sepals and 3 narrower petals. Stamens 6, with linear- 
oblong anthers and slender exserted filaments. Ovary of 3 nearly 
distinct ovoid 1-2-ovuled carpels, becoming divergent coriaceous 
subglobose follicles, dehiscing ventrally. Stigmas flat, sessile. 
Seed ascending, anatropous, with coriaceous testa. Embryo 
straight, thick. 
S. palustris L. Sp. 338. Stems solitary or several together, usually 
clothed at the base with the remains of old leaves, 4-10 inches high: leaves 
5-15 inches long, exceeding the stem, the uppermost reduced to bracts: 
pedicels 3-10 lines long, spreading in fruit; flowers white, few, in a loose 
terminal raceme: segments of the perianth membranaceous, l-nerved, 144 
lines long: filaments 2-4 lines long: seeds oval, brown, 24-3 lines long, 
