Arctostaphylos obispoensis

Eastwood

Leafl. W. Bot. 2: 8. 1937 ,.

Common names: Serpentine manzanita
Endemic
Treatment appears in FNA Volume 8. Treatment on page 430. Mentioned on page 413.

Shrubs or trees, erect, 1–4 m; burl absent; twigs sparsely short-hairy. Leaves: petiole 5–7 mm; blade gray-glaucous, dull, oblong to lanceolate-ovate, 2–4.5 × 1–2.5 cm, base rounded to truncate or ± lobed, margins entire, plane, surfaces smooth, appressed gray-canescent, glabrescent. Inflorescences panicles, 2–4-branched; immature inflorescence pendent or ascending, (branches curved, bell-shaped), axis 1–2.5 cm, 1+ mm diam., sparsely short-hairy; bracts not appressed, leaflike, linear-lanceolate, 7–14 mm, apex acuminate, surfaces appressed-canescent or glabrous. Pedicels 8–10 mm, glabrous. Flowers: corolla white, conic to urceolate; ovary glabrous. Fruits depressed-globose, 9–14 mm diam., glabrous. Stones distinct. 2n = 26.


Phenology: Flowering winter–early spring.
Habitat: Chaparral, open, closed-cone conifer forests
Elevation: 200-700 m

Discussion

Arctostaphylos obispoensis is found in the southern Santa Lucia Mountains on serpentine soils in Monterey and San Luis Obispo counties.

Selected References

None.

Lower Taxa

None.

"entire" is not a number.

V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
Eastwood +
short-hairy +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
not furrowed +
gray +  and reddish +
persistent +
exfoliating +
rounded;truncate or more or less lobed +
2 cm20 mm <br />0.02 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
gray-glaucous +
oblong;lanceolate-ovate +
coriaceous +
1cm;2.5cm +
not imbricate +  and imbricate +
hue +, light-brown +  and tan +
persistent +
linear-lanceolate +
Serpentine manzanita +
rotate to crateriform campanulate cylindric globose or urceolate +
brown +, reddish-brown +  and red +
depressed-globose +  and globose +
200-700 m +
undifferentiated +
fusiform +
stonelike +
indehiscent +
depressed-globose +
Chaparral, open, closed-cone conifer forests +
multicellular +
ascending +  and pendent +
opposite +, whorled +  and alternate +
pubescence +  and color +
persistent +
parietal +, axile +  and placentation +
tenuinucellate +  and unitegmic +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
reduced +
not sticky +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Flowering winter–early spring. +
4-5-carpellate +
Leafl. W. Bot. +
not +  and connate +
connate +  and distinct +
globose +
persistent +
distinct +
ovate +  and deltate +
prostrate +  and erect +
peltate +  and capitate +
distinct +
straight +
glabrous +, appressed-canescent +, glabrescent +  and gray-canescent +
Undefined tribe Arbuteae +
Arctostaphylos obispoensis +
Arctostaphylos +
species +
short-hairy +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
tree +  and shrub +
heterotrophic +, autotrophic +  and mycotrophic +