×pascoleymus

(B. Boivin) Barkworth
Treatment appears in FNA Volume 24. Treatment on page 351.
 TaxonIllustrator 
FNA24 P141 xPascoleymus pg 353.jpeg×pascoleymus bowdeniiCindy Roché

Plants perennial; rhizomatous. Culms to 120 cm, glabrous. Leaves evenly distributed; sheaths open; auricles present; ligules 0.5-1 mm, ciliate; blades 3-10 mm wide, slightly glaucous, long-tapering to the narrowly acute apices, abaxial surfaces scabridulous, glabrous, adaxial surfaces scabrous. Inflorescences distichous spikes, with 2 spikelets per node. Spikelets sessile, with 8-9 florets: disarticulation above the glumes, beneath the florets. Glumes unequal, linear-lanceolate to subulate; lemmas awned, awns shorter than the lemma body; paleas subequal to the lemmas, apices about 0.2 mm wide; anthers about 3.5 mm, indehiscent.

Discussion

×Pascoleymus consists, as its name indicates, of hybrids between Pascopyrum and Leymus. Only one such hybrid has been recognized.

"decumbent" is not a number.

... more about "×pascoleymus"
membranous +  and scarious +
indehiscent +
3.5 cm35 mm <br />0.035 m <br /> (?) +
Mary E. Barkworth +
(B. Boivin) Barkworth +
1 (?) +  and 3 (?) +
basal +  and apical +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
not evident +
long-tapering +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
spikelike +
hairy +  and glabrous +
not branching +
0 cm0 mm <br />0 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
not woody +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
8 +  and 9 +
laterally compressed +  and terete +
shorter than to longer than the adjacent florets +
subtending +
linear-lanceolate +  and subulate +
unequal +
uncinate +
solid +  and hollow +
distributed +
keeled +, lanceolate +  and rectangular +
stiffly membranous +  and coriaceous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
inconspicuous +
lanceolate +
fleshy +  and membranous +
concealed +  and prominent +
2 +  and 1 +
hairy +  and glabrous +
well-developed +
slightly longer +
subequal +
dry +  and fleshy +
spikelike +
boivin1967a +
bisexual +  and sterile +
terete +  and compressed +
1 +  and 3 +
simple +  and compound +
2 (?) +  and 3 (?) +
not papillate +
Gramineae +
×pascoleymus +
Poaceae tribe Triticeae +
membranous +
inconspicuous +
aquatic +  and terrestrial +