Heteromeles arbutifolia

(Lindley) M. Roemer

Fam. Nat. Syn. Monogr. 3: 105. 1847.

Illustrated
Basionym: Photinia arbutifolia Lindley Bot. Reg. 6: plate 491. 1820,
Synonyms: Heteromeles arbutifolia var. cerina (Jepson) A. E. Murray H. arbutifolia var. macrocarpa (Munz) Munz H. fremontiana C. Presl H. salicifolia P. salicifolia
Treatment appears in FNA Volume 9. Treatment on page 447.

Leaves: petiole 1–2 cm, tomentose; blade margins cartilaginous, veins 10–20 per side. Inflorescences: bracts persistent, 1–3; appendages persistent, hard; bracteoles subulate, 4–10 mm, chartaceous, margins ± revolute, teeth hard, gland-tipped, abaxial surfaces hairy. Flowers: sepals 1–2 mm. Pyrenes brown, smooth.


Phenology: Flowers Apr–Aug.
Habitat: Chaparral, oak woodlands, mixed-evergreen forests
Elevation: 0–1300 m

Distribution

V9 755-distribution-map.jpg

Calif., Mexico (Baja California)

Discussion

Heteromeles arbutifolia is widely distributed in the Coast Ranges north to Humboldt County and in a more scattered manner in the Sierra Nevada to Shasta County. Plants are used for Christmas decoration in the flora area and are sometimes cultivated for ornament where the species prospers.

Two varieties have been named, var. cerina (= Photinia arbutifolia var. cerina), which represents yellow-fruited forms, and var. macrocarpa (= P. arbutifolia var. macrocarpa), with more floriferous inflorescences and larger fruits (8–10 mm). The first is a sporadic variant worthy only of forma status; the variety named by Munz is more substantial, seems usually to have shorter and relatively broader leaves with barely toothed, revolute margins, and is said to be most common on the Channel Islands of San Clemente and Santa Catalina. This variety seems to intergrade with var. arbutifolia, which represents the bulk of the species.

Selected References

None.

Lower Taxa

None.
... more about "Heteromeles arbutifolia"
10 cm100 mm <br />0.1 m <br /> (?) +
gland-tipped +
scale-like +
James B. Phipps +
(Lindley) M. Roemer +
compound +  and simple +
opposite +  and alternate +
Photinia arbutifolia +
less elliptic +  and narrowly elliptic +
persistent +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
adnate +  and distinct +
Calif. +  and Mexico (Baja California) +
not +  and aggregated +
0–1300 m +
unisexual +  and bisexual +
not +  and aggregated +
not +  and aggregated +
yellow +  and bright red +
glabrate +  and glabrous +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Chaparral, oak woodlands, mixed-evergreen forests +
floccose +  and glabrous +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
crassinucellate +
persistent +
pinnate +  and serrate +
toothed +, unlobed +  and lobed +
inferior +  and superior +
biseriate +  and clustered +
collateral +  and basal +
white-tomentose +
dome--shaped +
10 cm100 mm <br />0.1 m <br /> (?) +
0 (?) +  and 4 (?) +
free +  and distinct +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowers Apr–Aug. +
adnate +, free +, connate +  and distinct +
Fam. Nat. Syn. Monogr. +
not arillate +
persistent +
free +  and distinct +
triangular +
accrescent +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Illustrated +
free +  and distinct +
branched +  and simple +
tan +  and dark gray +
not persistent +
distinct +
elongate +
glabrescent +  and tomentose +
Heteromeles arbutifolia var. cerina +, H. arbutifolia var. macrocarpa +, H. fremontiana +, H. salicifolia +  and P. salicifolia +
Heteromeles arbutifolia +
Heteromeles +
species +
gland-tipped +
inconspicuous +
10 +  and 20 +
tree +  and shrub +
17 +, 15 +, 9 +  and 8 +