Arctostaphylos crustacea subsp. subcordata

(Eastwood) V. T. Parker

Madroño 54: 152. 2007,.

Common names: Santa Cruz Island manzanita
Basionyms: Arctostaphylos subcordata Eastwood Leafl. W. Bot. 1: 61. 1933
Synonyms: Arctostaphylos tomentosa subsp. subcordata (Eastwood) P. V. Wells
Treatment appears in FNA Volume 8. Treatment on page 442. Mentioned on page 441.

Twigs sparsely short-hairy and densely glandular-hairy. Leaf-blade surfaces ± finely tomentose, densely glandular-hairy, ± papillate abaxially. Immature inflorescence axes densely glandular-hairy. Ovaries white-hairy, sparsely glandular.


Phenology: Flowering winter–early spring.
Habitat: Island chaparral
Elevation: 100-600 m

Discussion

Of conservation concern.

Subspecies subcordata is known from Santa Cruz and Santa Rosa islands. Occasional mainland glandular-hairy individuals occur in mixed populations with subsp. crustacea and may key to subsp. subcordata.

Selected References

None.

Lower Taxa

None.

"entire" is not a number.

Acute (?) +, Deltate (?) +  and Lanceolate (?) +
0.3 cm3 mm <br />0.003 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
V. Thomas Parker +, Michael C. Vasey +  and Jon E. Keeley +
(Eastwood) V. T. Parker +
eglandular +, long-hairy +  and glandular +
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 +
truncate;more or less lobed +
Arctostaphylos subcordata +
dark green +  and light green +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
shiny +  and dull +
oblong-ovate;oblong-lanceolate +
coriaceous +
1.5cm;2.5cm +
not imbricate +  and imbricate +
hue +, light-brown +  and tan +
persistent +
lanceolate +, ovate +, deltate +, keeled +  and scale-like +
Santa Cruz Island manzanita +
rotate to crateriform campanulate cylindric globose or urceolate +
brown +, reddish-brown +  and red +
depressed-globose +  and globose +
100-600 m +
undifferentiated +
fusiform +
stonelike +
indehiscent +
hairy +  and glabrous +
depressed-globose +
Island chaparral +
multicellular +
ascending +  and pendent +
glandular-hairy +  and tomentose +
opposite +, whorled +  and alternate +
pubescence +  and color +
persistent +
tomentose +, or +, glabrous +  and smooth +
parietal +, axile +  and placentation +
white-hairy +
tenuinucellate +  and unitegmic +
short-hairy +  and glabrous +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
reduced +
not sticky +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 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 +
distinct +
straight +
hairy +  and glabrous +
Arctostaphylos tomentosa subsp. subcordata +
Arctostaphylos crustacea subsp. subcordata +
Arctostaphylos crustacea +
subspecies +
glandular-hairy +  and short-hairy +
achlorophyllous +  and chlorophyllous +
evergreen +, deciduous +  and perennial +
heterotrophic +, autotrophic +  and mycotrophic +