Halimolobos jaegeri

(Munz) Rollins

Harvard Pap. Bot. 1: 46. 1993.

Basionym: Sisymbrium diffusum var. jaegeri Munz Bull. S. Calif. Acad. Sci. 31: 61. 1932
Synonyms: Halimolobos diffusa var. jaegeri (Munz) Rollins
Treatment appears in FNA Volume 7. Treatment on page 558.

Perennials. Stems erect to ascending, often paniculately branched distally, 1.5–7.5 dm, trichomes sessile or subsessile. Basal leaves absent on older plants. Cauline leaves petiolate or (distal) sessile; petiole 0.3–2 cm; blade oblanceolate or lanceolate to obovate, (1.5–) 3–8 (–11.5) cm × (7–) 15–35 (–46) mm (smaller distally), base cuneate, margins coarsely dentate to shallowly sinuate, surfaces with stalked to subsessile trichomes. Racemes slightly to considerably elongated in fruit. Fruiting pedicels divaricate or slightly ascending, (3–) 4–9 (–12) mm. Flowers: sepals slightly spreading, 2–4 × 0.8–1.5 mm; petals (slightly spreading), spatulate or oblanceolate, (3.5–) 4.5–6 × 1–1.5 mm, claw obscurely differentiated from blade, to 1.5 mm; filaments spreading, 3.5–6 mm, equal to or longer than petals; anthers 0.7–1 mm. Fruits divaricate or slightly ascending, curved or straight, torulose, linear, terete, (1–) 1.5–2.6 cm × 0.6–0.9 mm; ovules 28–38 per ovary; style (1–) 1.5–2.2 mm. Seeds uniseriate, 0.9–1.2 × 0.5–0.6 mm.


Phenology: Flowering early Jun-late Aug.
Habitat: Limestone cliffs, canyon walls, granitic slopes, rocky outcrops, crevices of volcanic cliffs
Elevation: 1300-2400 m

Discussion

Halimolobos jaegeri is known in California from Inyo and San Bernardino counties and in Nevada from Esmeralda and Nye counties.

Selected References

None.

Lower Taxa

None.

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

... more about "Halimolobos jaegeri"
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Ihsan A. Al-Shehbaz +  and C. Donovan Bailey +
(Munz) Rollins +
cuneate +
Sisymbrium diffusum var. jaegeri +
appendaged +  and unappendaged +
8 cm80 mm <br />0.08 m <br /> (11.5 cm115 mm <br />0.115 m <br />) +
3.5 cm35 mm <br />0.035 m <br /> (4.6 cm46 mm <br />0.046 m <br />) +
not auriculate +
3 cm30 mm <br />0.03 m <br /> (8 cm80 mm <br />0.08 m <br />) +
sinuate-dentate +  and dentate +
pinnatifid +  and dentate +
lanceolate;obovate +
much smaller +  and reduced +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
urceolate +, campanulate +  and tubular +
branched +  and simple +
sessile +  and petiolate +
well-developed +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
differentiated +
emarginate +  and entire +
incumbent +  and accumbent +
Calif. +  and Nev. +
1300-2400 m +
straight +  and curved +
not winged +  and unappendaged +
connate +  and distinct +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
zygomorphic +  and actinomorphic +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
oblanceolate +  and spatulate +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
2-valved +  and capsular +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
straight +  and curved +
1.5 cm15 mm <br />0.015 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
terete +  and torulose +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
ovoid +  and oblong terete or angustiseptate +
ovoid +  and oblong terete or angustiseptate +
Limestone cliffs, canyon walls, granitic slopes, rocky outcrops, crevices of volcanic cliffs +
sessile +  and petiolate +
alternate +, not +  and rosulate +
basal +  and cauline +
connate +  and distinct +
decurrent +
coarsely dentate;shallowly sinuate +
tenuinucellate +, crassinucellate +  and bitegmic +
campylotropous +  and anatropous +
rudimentary +
spatulate +  and oblanceolate +
0.3 cm3 mm <br />0.003 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering early Jun-late Aug. +
trinucleate +  and 3(-11)-colpate +
Harvard Pap. Bot. +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
slender +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
mucilaginous +
not +  and mucilaginous +
white +, black +, brown +  and yellow +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
persistent +  and caducous +
distinct +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
reduced +
latiseptate +, schizocarpic +, samaroid +  and lomentaceous +
indehiscent +  and dehiscent +
angustiseptate +, flat +, angled +, terete +, torulose +, not +, segmented +  and nutletlike +
tetradynamous +
procumbent +  and decumbent +
erect +  and ascending +
2-lobed +, entire +, conical +  and capitate +
subsessile +, sessile +  and petiolate +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
persistent +
distinct +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
Halimolobos diffusa var. jaegeri +
Halimolobos jaegeri +
Halimolobos +
species +
stalked +  and subsessile +
anastomosing +
rhizomatous +, taprooted +, scapose +  and not +
perennial +, biennial +  and annual +
subshrub +  and herb +
aquatics +  and terrestrial +
glabrous +  and pubescent +