Arctostaphylos myrtifolia

Parry

Pittonia 1: 34. 1887 ,.

Common names: Ione manzanita
EndemicConservation concern
Treatment appears in FNA Volume 8. Treatment on page 415. Mentioned on page 411.

Shrubs, erect or mound-forming, 0.5–1.5 m; burl absent; bark on older stems persistent, dark red with translucent, grayish patches, smooth; twigs finely glandular-hairy. Leaves erect; petiole 1–3 mm; blade bright green, shiny, narrowly elliptic, 0.6–1.5 × 0.3–0.8 cm, base cuneate, margins entire, plane, surfaces rough, papillate, sparsely finely glandular-hairy. Inflorescences racemes, simple or 1-branched; immature inflorescence pendent, axis 0.5–1 cm, 1+ mm diam., finely glandular-hairy; bracts not appressed, scalelike, deltate, 1–2 mm, apex acuminate, surfaces glabrous. Pedicels 1–3 mm, glabrous. Flowers: corolla white, urceolate; ovary white-hairy. Fruits subcylindric, 3–4 mm diam., glabrous. Stones distinct, (breaking apart when mature). 2n = 26.


Phenology: Flowering winter–early spring.
Habitat: Exposed acidic, whitish, clay soils (oxisols)
Elevation: 30-200 m

Discussion

Of conservation concern.

Arctostaphylos myrtifolia is known only from the lower Sierra Nevada foothills near Ione in the eastern part of the Central Valley.

Selected References

None.

Lower Taxa

None.

"entire" is not a number.

... more about "Arctostaphylos myrtifolia"
V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
glandular-hairy +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not furrowed +
dark red with translucent +
persistent +
exfoliating +
cuneate +
bright green +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
ovate;elliptic +
coriaceous +
0.3cm;0.8cm +
not imbricate +  and imbricate +
hue +, light-brown +  and tan +
persistent +
deltate +  and scale-like +
Ione manzanita +
rotate to crateriform campanulate cylindric globose or urceolate +
brown +, reddish-brown +  and red +
depressed-globose +  and globose +
30-200 m +
undifferentiated +
fusiform +
stonelike +
indehiscent +
subcylindric +
Exposed acidic, whitish, clay soils (oxisols) +
multicellular +
1-branched +  and simple +
opposite +, whorled +  and alternate +
pubescence +  and color +
persistent +
parietal +, axile +  and placentation +
white-hairy +
tenuinucellate +  and unitegmic +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
reduced +
not sticky +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Flowering winter–early spring. +
4-5-carpellate +
not +  and connate +
connate +  and distinct +
globose +
persistent +
distinct +
ovate +  and deltate +
Endemic +  and Conservation concern +
persistent +
prostrate +  and erect +
peltate +  and capitate +
distinct +
straight +
glabrous +  and glandular-hairy +
papillate +
Undefined tribe Arbuteae +
Arctostaphylos myrtifolia +
Arctostaphylos +
species +
glandular-hairy +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
shrub +  and mound-forming +
heterotrophic +, autotrophic +  and mycotrophic +