Glyceria melicaria
Glyceria pulchella
glycerie melicaire, melic mannagrass, northeastern manna grass
beautiful glyceria, graceful mannagrass, Mackenzie Valley mannagrass, slender mannagrass
50-100 cm tall, 3-5 mm thick, erect.
40-60 cm tall, 1.5-5 mm thick, erect.
smooth, not or only weakly keeled;
ligules 0.2-0.9 mm, translucent, rounded to truncate;
blades 25-40 cm long, 2-7 mm wide, abaxial surfaces smooth, adaxial surfaces scabridulous.
scabridulous, not or weakly keeled;
ligules 1.5-4 mm;
blades 9-29 cm long, 2-7.5 mm wide, scabrous.
15-25 cm long, 0.8-1.5 cm wide, linear, nodding;
branches 5-9 cm, appressed, scarcely surpassing the node above, with 30-60+ spikelets;
pedicels 0.5-2 mm.
15-25 cm long, 6-15(20) cm wide, open, pyramidal, nodding;
branches 8-12 cm, ascending to divergent, flexuous, often smooth, with 30-40+ spikelets;
pedicels 0.3-6 mm.
3.5-5 mm long, 1-2.5 mm wide, laterally compressed, oval in side view, with 3-4 florets.
3.5-6 mm long, 1.4-2.5 mm wide, about 2.5 times longer than wide, laterally compressed, oval in side view, with 3-6 florets.
lanceolate, veins terminating below the apices, apices acute;
lower glumes 1.3-2.4 mm;
upper glumes 1.7-3 mm;
rachilla internodes 0.4-0.6 mm;
lemmas 1.9-2.8 mm, smooth or scabridulous, 5-7-veined, veins raised, apices acute, prow-shaped;
paleas slightly shorter to slightly longer than the lemmas, lengths 2.5-4 times widths, keels well developed, not winged, tips incurved, narrowly notched between the keels;
anthers 2, 0.3-0.5 mm.
unequal, lengths about 3 times widths, narrowing beyond midlength, veins terminating below the apices, apices acute, forming an angle of about 45°;
lower glumes 1.5-2 mm;
upper glumes 2-2.6 mm, erose;
rachilla internodes 0.4-0.6 mm;
lemmas 2.5-3.5 mm, oval in dorsal view, 7-veined, veins raised, scabridulous, apices broadly acute to obtuse, prow-shaped;
paleas from shorter than to equaling the lemmas, lengths 3-3.5 times widths, keels not winged, tips incurved, apices narrowly notched between the keels;
anthers 2, 0.5-0.9 mm.
1-1.5 mm;
hila subequal to the caryopses.
about 1 mm.
= 40.
= unknown.
Glyceria melicaria
Glyceria pulchella
Glyceria melicaria grows in swamps and wet soils. Its range extends from southeastern Ontario east to Nova Scotia, south to Illinois and the northeastern United States and, in the Appalachian Mountains, to northern Georgia. Glyceria xgatineauensis Bowden is a sterile hybrid between G. melicaria and G. striata. For further comments, see p. 77.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Glyceria pulchella grows in marshes, muskegs, ponds, and ditches, from central Alaska and the Northwest Territories to southern British Columbia and central Manitoba. In overall aspect, G. pulchella resembles G. striata and G. elata. It differs in having somewhat stiffer and straighter panicle branches, in addition to larger spikelets and florets.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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