Tetracoccus ilicifolius

Coville & Gilman

J. Wash. Acad. Sci. 26: 531. 1936.

Common names: Holly-leaf four-pod spurge
EndemicConservation concern
Treatment appears in FNA Volume 12. Treatment on page 326.

Shrubs to 1.5 m. Leaves opposite, not clustered on short-shoots; blade ovate to broadly elliptic, 15–30 × 7–20 mm, base obtuse, margins prominently serrate-dentate, apex acute to obtuse. Inflorescences: staminate congested paniclelike thyrses, 15–35 mm; pistillate flowers solitary. Pedicels: staminate essentially absent; pistillate 8–15 mm, tomentose. Staminate flowers: sepals 7–9; stamens 7–9, filaments villous basally. Pistillate flowers: sepals 8, in 2 series, greenish, 2.5–4 mm, sparsely tomentose abaxially, densely tomentose adaxially; pistil usually 4-carpellate, 3 mm, tomentose. Seeds (1–) 2 per locule, glossy brownish red, elliptic-oblong, 4–5 mm, usually with one flattened radial surface, smooth; caruncle present.


Phenology: Flowering May–Jun.
Habitat: Desert scrub on limestone outcrops.
Elevation: 600–1900 m.

Discussion

Tetracoccus ilicifolius is restricted to the mountains flanking Death Valley.

Selected References

None.

Lower Taxa

None.
... more about "Tetracoccus ilicifolius"
acute;obtuse +
W. John Hayden +
Coville & Gilman +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
pinnate +, serrate +, dentate +  and entire +
glabrescent +
ovate;broadly elliptic +
0.7 cm7 mm <br />0.007 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Holly-leaf four-pod spurge +
600–1900 m. +
pistillate +  and staminate +
Desert scrub on limestone outcrops. +
racemelike +, paniclelike +  and staminate +
1.5 cm15 mm <br />0.015 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
intrastaminal +
pistillate +  and staminate +
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Flowering May–Jun. +
3 cm30 mm <br />0.03 m <br /> (?) +
J. Wash. Acad. Sci. +
wrinkled +  and smooth +
brownish red +
elliptic-oblong +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
distinct +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
differentiated +
Endemic +  and Conservation concern +
free +  and distinct +
distinct +
flattened +
Halliophytum +
Tetracoccus ilicifolius +
Tetracoccus +
species +
paniclelike +
sparingly hairy;glabrescent +