familyPoaceae
subfamilyPoaceae subfam. Pooideae
tribePoaceae tribe Triticeae
genus×pascoleymus
species×pascoleymus bowdenii

×pascoleymus bowdenii

(B. Boivin) Barkworth
Mary E. Barkworth
Treatment appears in FNA Volume 24. Treatment on page 353.
Please click on the illustration for a higher resolution version.
Illustrator: Cindy Roché

Copyright: Utah State University

Culms 2-3 mm thick. Auricles to 1 mm; blades 5-10 mm wide. Rachis internodes 7-12 mm. Spikelets 12-22 mm. Glumes 1.2-9 mm; lemmas about 10 mm, hairy, hairs about 1 mm, awns 1.5-4 mm.

Discussion

The holotype of ×Pascoleymus bowdenii was collected at Beaverlodge, Alberta. Boivin (1967) considered it a hybrid between Agropyon smithii [= Pascopyrum smithii] and Elymus innovatus [= Leymus innovatus]. The tapering leaf blades and hairy lemmas support the involvement of L. innovatus; support for the involvement of P. smithii is less evident. ×Pascoleymus bowdenii differs it its wide blades from ×Elyleymus turneri, another hybrid having L. innovatus as one of its parents, but these do not provide any particular support for identifying P. smithii as the other parent. Some of the additional specimens that Boivin placed in ×Pascoleymus bowdenii belong to L. triticoides.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "×pascoleymus bowdenii"
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Abaxial ligule presence
absent +
Abaxial ligule quantity
common +
Abaxial surface pubescence
glabrous +
Abaxial surface relief
scabridulous +
Adaxial cell presence
absent +
Adaxial cell shape
bulliform +
Adaxial ligule architecture or pubescence or shape
ciliate +
Adaxial ligule presence
absent +
Adaxial ligule texture
membranous +  and scarious +
Adaxial surface pubescence or relief
scabrous +
Anther dehiscence
indehiscent +
Anther quantity
3 +
Anther some measurement
3.5 cm35 mm <br />0.035 m <br /> (?) +
Apex architecture or shape
awned +
Apex pubescence
hairy +
Apex shape
acute +
Apex width
0.2 +
Arm cell presence
absent +
Auricle presence
absent +
Auricle some measurement
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Author
Mary E. Barkworth +
Authority
(B. Boivin) Barkworth +
Awn architecture
unbranched +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn height or length or size
shorter +
Awn orientation
arising +
Awn position
basal +  and apical +
Awn position or structure subtype
terminal +
Awn quantity
single +
Awn some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Back shape
keeled +  and rounded +
Basal floret quantity
1 +  and 2 +
Base architecture
pseudopetiolate +  and branching +
Base arrangement
close +
Base fusion
free +
Base position
intravaginal +, extravaginal +, branching +  and basal +
Base size
swelling +
Base texture
hard +
Base width
thick +
Blade arrangement
parallel +
Blade arrangement or course or shape
linear +
Blade prominence
not evident +
Blade pubescence
glaucous +
Blade shape
long-tapering +
Blade width
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Branch shape
spikelike +
Callus pubescence
hairy +  and glabrous +
Culm architecture
not branching +
Culm architecture or arrangement or growth form
solitary +
Culm duration
annual +
Culm growth form
climbing +
Culm growth form or location
floating +
Culm orientation
erect +
Culm pubescence
glabrous +
Culm some measurement
0 cm0 mm <br />0 m <br /> (120 cm1,200 mm <br />1.2 m <br />) +
Culm texture
not woody +
Culm thickness
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Distal floret reproduction
sterile +
Distal floret size
reduced +
Embryo quantity
1/3 +
Endosperm texture
liquid +, soft +  and hard +
Filament shape
capillary +
Floret architecture
pistillate +  and staminate +
Floret arrangement
adjacent +
Floret length or size
longer +
Floret quantity
8 +  and 9 +
Floret reproduction
bisexual +
Floret shape
laterally compressed +  and terete +
Glume architecture
1-5-veined +
Glume architecture or shape
awned +
Glume height or length or size
shorter than to longer than the adjacent florets +
Glume position
subtending +
Glume presence
absent +
Glume quantity
2 +
Glume shape
linear-lanceolate +  and subulate +
Glume size
unequal +
Glume some measurement
0.12 cm1.2 mm <br />0.0012 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Glume variability
equal +
Hair shape
uncinate +
Hair some measurement
1 cm10 mm <br />0.01 m <br /> (?) +
Hilum arrangement or course or shape
linear +
Hilum coloration or relief
punctate +
Hilum shape
Ovate (?) +
Illustration
Present +
Illustration copyright
Utah State University +
Illustrator
Cindy Roché +
Inflorescence architecture
compound +
Inflorescence position or structure subtype
terminal +
Internode architecture
solid +  and hollow +
Internode presence
absent +
Layer presence
absent +
Leaf arrangement
distributed +
Leaf margin arrangement
Overlapping (?) +
Lemma architecture
5(7)-veined +
Lemma architecture or shape
awned +
Lemma pubescence
hairy +
Lemma shape
keeled +, lanceolate +  and rectangular +
Lemma some measurement
10 cm100 mm <br />0.1 m <br /> (?) +
Lemma texture
stiffly membranous +  and coriaceous +
Ligule architecture or pubescence or shape
ciliate +
Ligule presence
absent +
Ligule some measurement
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Lodicule architecture
veined +
Lodicule architecture or pubescence or shape
ciliate +
Lodicule architecture or shape
truncate +
Lodicule prominence
inconspicuous +
Lodicule quantity
2 +
Lodicule shape
lanceolate +
Lodicule texture
fleshy +  and membranous +
Midrib architecture
simple +
Node prominence
concealed +  and prominent +
Number of lower taxa
0 +
Other quantity
2 +  and 1 +
Ovary presence
absent +
Ovary pubescence
hairy +  and glabrous +
Palea development
well-developed +
Palea height or length or size
shorter +
Palea length or size
slightly longer +
Palea presence
absent +
Palea shape
keeled +
Palea size
subequal +
Papilla presence
absent +
Pedicel presence
absent +
Pedicel quantity
0-4 mm +
Pericarp arrangement
separating +
Pericarp condition or texture
dry +
Pericarp texture
dry +  and fleshy +
Pericarp width
thin +
Pseudopetiole presence
absent +
Raceme shape
spikelike +
Rachilla length
prolonged +
Rachis internode some measurement
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Rachis prominence
evident +
Reference
None +
Sheath architecture
open +
Sheath condition
closed +
Sheath length
full +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V24/V24 504.xml +
Spike architecture
ebracteate +
Spike arrangement
distichous +
Spikelet architecture
sessile +
Spikelet arrangement
mixed +
Spikelet fixation
attached +
Spikelet fusion
distinct +
Spikelet quantity
2 +
Spikelet reproduction
bisexual +  and sterile +
Spikelet shape
terete +  and compressed +
Spikelet some measurement
1.2 cm12 mm <br />0.012 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
Stamen quantity
1 +  and 3 +
Starch-grain architecture
simple +  and compound +
Style-branch atypical quantity
4 +  and 1 +
Style-branch quantity
2 (?) +  and 3 (?) +
Style quantity
2 +
Subsidiary-cell architecture
parallel-sided +
Surface relief
not papillate +
Synonyms
Gramineae +
Taxon family
Poaceae +
Taxon name
×pascoleymus bowdenii +
Taxon parent
×pascoleymus +
Taxon rank
species +
Terminal floret reproduction
sexual +
Tissue coloration
hyaline +
Tissue texture
membranous +
Vein arrangement
converging +
Vein presence
absent +
Vein prominence
inconspicuous +
Vein quantity
2 (?) +
Vein size
major +
Volume
Volume 24 +
Whole organism architecture
rhizomatous +
Whole organism arrangement or pubescence
tufted +
Whole organism duration
perennial +
Whole organism growth form
plant +
Whole organism growth form or habitat
aquatic +  and terrestrial +
X chromosome quantity
7 +