Allium yosemitense

Eastwood

Leafl. W. Bot. 1: 132. 1934.

IllustratedEndemicConservation concern
Treatment appears in FNA Volume 26. Treatment on page 273. Mentioned on page 233, 271.

Bulbs 1–12+, not basally clustered on stout primary rhizome, ovoid, 2–3 × 1.5–2 cm; outer coats enclosing 1 or more bulbs, brown, membranous, lacking cellular reticulation or cells arranged in only 2–3 rows distal to roots, ± quadrate, without fibers; inner coats white, cells very obscurely quadrate or not visible. Leaves usually deciduous with scape, withering from tip at anthesis, 2, basally sheathing, sheaths not extending much above soil surface; blade solid, flat or very broadly channeled, ± falcate, 15–40 cm × 2–18 mm, margins entire. Scape usually forming abcission layer and deciduous with leaves after seeds mature, frequently breaking at this level after pressing, solitary, erect, solid, terete, 6–23 cm × 1–3 mm. Umbel persistent, erect, compact, 20–100-flowered, globose to hemispheric, bulbils unknown; spathe bracts persistent, 2–4, 7–9-veined, ovate, ± equal, apex acuminate. Flowers campanulate, 7–15 mm; tepals erect, white to pink with darker midveins, linear-oblong, ± equal, becoming membranous in fruit, margins entire, apex acute; stamens ± equaling tepals; anthers yellow or purple; pollen yellow; ovary crested; processes 3, 2-lobed, minute, margins entire; style short-exserted, linear; stigma capitate, scarcely thickened, unlobed; pedicel 7–34 mm. Seed-coat dull; cells ± smooth. 2n = 14.


Phenology: Flowering May–Jun.
Habitat: Moist soil along cracks and margins of large metamorphic outcrops
Elevation: 800–2200 m

Discussion

Of conservation concern.

Allium yosemitense is known only from the central Sierra Nevada.

Selected References

None.

Lower Taxa

None.

"thicker" is not a number."broad" is not a number.

... more about "Allium yosemitense"
purple +  and yellow +
versatile +  and dorsifixed +
cordate +  and linear +
acute +  and acuminate +
Dale W. McNeal Jr. +  and T. D. Jacobsen +
Eastwood +
whorled +, opposite +  and alternate +
dilated +
straight +
15 cm150 mm <br />0.15 m <br /> (40 cm400 mm <br />0.4 m <br />) +
falcate +  and channeled +
0.2 cm2 mm <br />0.002 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
conspicuous +
1;several +
2cm +  and 3cm +
1 +  and 12 +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
roughened +  and smooth +
quadrate +
800–2200 m +
connate-coroniform +  and dilated +
sessile +  and pedicellate +
unisexual +  and bisexual +
campanulate +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
loculicidal +
membranaceous +  and leathery +
Moist soil along cracks and margins of large metamorphic outcrops +
paired +, paniculate +  and racemose +
deciduous +
gray +  and brown +
crested +
many;several +
spreading +  and erect +
0.7 cm7 mm <br />0.007 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
membranous +
zygomorphic +  and actinomorphic +
Flowering May–Jun. +
Leafl. W. Bot. +
lacking +  and 1 +
2 +  and 3 +
deciduous +
6cm +  and 23cm +
1mm +  and 3mm +
wind-distributed +
1 +  and many +
obovoid +
Illustrated +, Endemic +  and Conservation concern +
adnate +  and free +
epipetalous +
1 +  and several +
short-exserted +
Allium yosemitense +
species +
persisting +
distinct +
linear-oblong +
membranous +
equaling +  and equal +
sepaloid +  and petaloid +
narrower +
20-100-flowered +
persistent +
globose;hemispheric +
9 +, 8 +  and 7 +