Arctostaphylos manzanita subsp. roofii

(Gankin) P. V. Wells

Madroño 19: 201. 1968 ,.

Common names: Roof’s manzanita
Endemic
Basionyms: Arctostaphylos roofii Gankin Leafl. W. Bot. 10: 329. 1966
Treatment appears in FNA Volume 8. Treatment on page 438. Mentioned on page 437.

Plants resprouting after fire; burl prominent; twigs glabrous or finely short-hairy. Leaf-blades dull to shiny green, not glaucous. Inflorescences: axis 1+ mm diam. Ovaries glandular-hairy, sometimes glabrous. Fruits usually glandular-hairy, sometimes glabrous. Stones distinct or partially connate into 1+ spheres.


Phenology: Flowering winter–early spring.
Habitat: Chaparral
Elevation: 800- 1300 m

Discussion

Subspecies roofii is found mostly on the eastern slopes of the North Coast Range in Glenn and Lake counties, and on the western slope of Sierra Nevada in Butte County (where plants have ovaries and fruits that are glabrous).

Selected References

None.

Lower Taxa

None.

"entire" is not a number.

V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
(Gankin) P. V. Wells +
not viscid +
glandular-hairy +, short-hairy +  and glabrous +
1.5 cm15 mm <br />0.015 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
not furrowed +
gray +  and reddish +
persistent +
exfoliating +
rounded;more or less cuneate +
Arctostaphylos roofii +
bright green +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
dull +  and shiny +
oblong-ovate;obovate +
coriaceous +
1cm;3.5cm +
not imbricate +  and imbricate +
hue +, light-brown +  and tan +
persistent +
deltate +  and scale-like +
globose +
Roof’s manzanita +
rotate to crateriform campanulate cylindric globose or urceolate +
brown +, reddish-brown +  and red +
depressed-globose +  and globose +
800- 1300 m +
undifferentiated +
fusiform +
stonelike +
indehiscent +
glabrous +  and glandular-hairy +
depressed-globose +
Chaparral +
multicellular +
dull +  and shiny +
opposite +, whorled +  and alternate +
pubescence +  and color +
persistent +
parietal +, axile +  and placentation +
glabrous +  and glandular-hairy +
tenuinucellate +  and unitegmic +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
reduced +
not sticky +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Flowering winter–early spring. +
4-5-carpellate +
not +  and connate +
connate +  and distinct +
globose +
persistent +
distinct +
ovate +  and deltate +
prostrate +  and erect +
peltate +  and capitate +
connate +  and distinct +
straight +
sparsely hairy +  and finely glandular-hairy +
Undefined tribe Arbuteae +
Arctostaphylos manzanita subsp. roofii +
Arctostaphylos manzanita +
subspecies +
short-hairy +  and glabrous +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
heterotrophic +, autotrophic +  and mycotrophic +