Treatment appears in FNA Volume 24. Treatment on page 103.
Revision as of 01:44, 30 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
 TaxonIllustrator 
FNA24 P38 Schizachne pg 104.jpegSchizachne purpurascensLinda Ann Vorobik
Hana Pazdírková

Plants perennial; loosely cespitose. Culms 30-110 cm, glabrous, often decumbent at the base; nodes glabrous, becoming dark. Sheaths closed almost to the top; ligules membranous, margins often united in front; blades folded or loosely involute, glabrous or pilose. Inflorescences panicles or racemes, with 4-20 spikelets; branches straight and appressed to lax and drooping. Spikelets slightly laterally compressed, with 3-6 florets; disarticulation above the glumes and beneath the florets. Glumes exceeded by the lowest lemma in each spikelet, chartaceous, often anthocyanic below, the upper 1/3 hyaline; calluses rounded, with hairs; lemmas chartaceous, slightly scabrous, 7-9-veined, veins parallel, conspicuous, apices scarious, bifid, awned from below the teeth, awns 8-15 mm, divergent or slightly geniculate; paleas shorter than the lemmas, 2-veined, veins ciliate, keeled; lodicules truncate; anthers 3; ovaries glabrous. Caryopses 3.2-3.8 mm, smooth, shiny, falling free of the lemma and palea. x = 10.

Distribution

Conn., Mass., Maine, N.H., Vt., Wis., W.Va., Fla., Wyo., N.J., N.Mex., N.Y., Alta., B.C., Man., N.B., Nfld. and Labr., N.S., N.W.T., Ont., P.E.I., Que., Sask., Yukon, Pa., R.I., Va., Colo., Alaska, Ill., Ind., Iowa, N.Dak., Nebr., S.Dak., Md., Ohio, Utah, Minn., Mich., Mont., Ky.

Discussion

Schizachne is a monospecific genus that extends across North America in boreal regions and southwards in the montane areas, as well as from the Ural Mountains of Russia to Kamchatka and Japan.

"decumbent" is not a number.

... more about "Schizachne"
membranous +  and scarious +
awned +  and bifid +
usually rounded +  and acute +
scarious +
Jacques Cayouette +  and Stephen J. Darbyshire +
1 (?) +  and 3 (?) +
basal +  and apical +
geniculate +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
persistent +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
pilose +  and glabrous +
involute +  and folded +
with hairs +  and glabrous +
not branching +
ascending +  and erect +
30 cm300 mm <br />0.3 m <br /> (110 cm1,100 mm <br />1.1 m <br />) +
not woody +
Conn. +, Mass. +, Maine +, N.H. +, Vt. +, Wis. +, W.Va. +, Fla. +, Wyo. +, N.J. +, N.Mex. +, N.Y. +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.S. +, N.W.T. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Pa. +, R.I. +, Va. +, Colo. +, Alaska +, Ill. +, Ind. +, Iowa +, N.Dak. +, Nebr. +, S.Dak. +, Md. +, Ohio +, Utah +, Minn. +, Mich. +, Mont. +  and Ky. +
0 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
sometimes longer +
3 +  and 6 +
compressed +
reduced +
hyaline +  and anthocyanic +
shorter than to longer than the adjacent lemmas +
scarious +  and membranous +
uncinate +
membranous +
inconspicuous +
lanceolate +
concealed +  and prominent +
2 +  and 1 +
well-developed +
reduced +
dry +  and fleshy +
koyama1964a +, mcneill1976a +  and tsvelev1976a +
4 +  and 20 +
not viviparous +
compressed +
0.25 cm2.5 mm <br />0.0025 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Schizachne +
Poaceae tribe Meliceae +
membranous +
conspicuous +
plant +  and cespitose +
aquatic +  and terrestrial +