Johanneshowellia crateriorum

Reveal

Brittonia 56: 304, fig. 2. 2004.

Common names: Lunar Crater Howell’s-buckwheat
Treatment appears in FNA Volume 5. Treatment on page 444. Mentioned on page 443.
Revision as of 09:54, 30 July 2020 by imported>Volume Importer
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Plants spreading, reddish, 0.5–3 × 1–3 (–5) dm, thinly silky-puberulent. Stems 0.3–0.5 dm. Leaf-blades obovate to rounded or somewhat reniform, 0.5–1.5 × 0.5–1.5 cm. Inflorescences spreading, diffuse, 5–25 cm; bracts triangular, 1–2 (–2.5) × 1–2 (–2.5) mm, scalelike, glabrous but ciliate on margins. Involucral-bracts oblanceolate to obovate, 0.5–0.8 × 0.1–0.3 mm, glabrous but ciliate on margins, outermost one deeply 2-lobed. Flowers: perianth white to rose, becoming red in fruit, 2–2.5 mm, smooth; tepals monomorphic, lanceolate, not auriculate, margins entire; filaments 1.2–1.8 mm. Achenes 1.3–1.8 mm.


Phenology: Flowering May–Sep.
Habitat: Sandy, pumice flats and slopes, saltbush communities
Elevation: 1700-1900 m

Discussion

Johanneshowellia crateriorum is known only from the Lunar Crater area of Nye County.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

light-brown +
3-gonous +
white +  and pale-pink +
James L. Reveal +
Reveal +
stipelike +
Puberula +
awn-tipped +  and simple +
reniform;obovate;rounded +
not awned +  and leaflike +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
scale-like +  and triangular +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
disarticulating +, dichotomous +  and trichotomous +
not brittle +
silky-puberulent +
just below the soil surface or and above the soil surface +  and spreading +
Lunar Crater Howell’s-buckwheat +
1700-1900 m +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
unisexual +  and bisexual +
disarticulating +  and solid +
decumbent to erect +  and prostrate +
unwinged +  and winged +
black +, red +, brown +  and yellowish +
exserted +  and included +
pubescent +  and glabrous +
spheroidal +, 4-gonous +, lenticular +, biconvex +, discoid +, 3-gonous +  and 2-gonous +
Sandy, pumice flats and slopes, saltbush communities +
cymelike +, paniclelike +, racemelike +  and spikelike +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
connate +  and free +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
urceolate +, campanulate +, turbinate +, prismatic +  and cylindric +
nonmembranous +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
reniform +, obovate +  and rounded +
0.5cm;1.5cm +
in whorls +, opposite +, alternate +  and rosulate +
deciduous +
cauline +  and basal +
distinct +
oblanceolate +  and obovate +
pubescent +  and glabrous +
lobed +, undulate +, crisped +, crenulate +  and entire +
not swollen +
orthotropous +
accrescent +
curved +  and straight +
erect to deflexed +
red;white;rose +
pustulose +  and smooth +
urceolate +  and campanulate +
accrescent +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
fleshy +, indurate +  and membranous +
with extrafloral nectaries +  and not articulate +
Flowering May–Sep. +
homostylous +  and 3-carpellate +
, +  and solid +
slender;stout +
disarticulating +  and solid +
decumbent to spreading or erect +  and prostrate +
weakly erect +  and spreading +
silky-puberulent +
not fistulose +
penicillate +, fimbriate +  and capitate +
deciduous +  and persistent +
2-lobed +  and cylindric +
coriaceous +  and membranous +
consisting of a series +  and tubular +
distinct +
erect;spreading or recurved +
spreading;erect +
chambered +, , +  and solid +
Johanneshowellia crateriorum +
Johanneshowellia +
species +
not auriculate +  and lanceolate +
coriaceous +
persistent +
membranous +
pubescent +  and glabrous +
3 +, 2 +  and 1 +