Arceuthobium campylopodum subsp. littorum

(Hawksworth

Wiens & Nickrent) Nickrent, Phytoneuron 2012-51: 10. 2012.

Common names: Coastal dwarf mistletoe
Endemic
Basionym: Arceuthobium littorum Hawksworth Wiens & Nickrent, Novon 2: 206. 1992
Treatment appears in FNA Volume 12. Treatment on page 432. Mentioned on page 429, 430.

Plants usually forming witches brooms. Stems olive green, or brown, 8–12 (–20) cm; third internode 10–15 (–20) × 2–3.5 (–5) mm, dominant shoot 2–5 mm diam. at base. Staminate flowers 3 mm diam.; petals 4. Fruits 4–5 × 3 mm.


Phenology: Flowering Aug–Sep; fruiting Sep–Oct.
Habitat: Closed-cone pine forests.
Elevation: 0–300 m.

Discussion

Meiosis occurs in July, with fruits maturing 14 months after pollination.

Subspecies littorum parasitizes Pinus muricata and P. radiata, and occasionally P. contorta in Alameda, Mendocino, and Monterey counties. It has the largest shoots among the 13 subspecies of A. campylopdum.

Selected References

None.

Lower Taxa

None.
Daniel L. Nickrent +
(Hawksworth +
Arceuthobium littorum +
brown +, orange +, yellow +, olive green +  and yellowish green +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 0.3 cm3 mm <br />0.003 m <br /> (?) +
scale-like +
10 cm100 mm <br />0.1 m <br /> (22 cm220 mm <br />0.22 m <br />) +
3 cm30 mm <br />0.03 m <br /> (?) +  and 10 cm100 mm <br />0.1 m <br /> (?) +
Coastal dwarf mistletoe +
spikelike +
0–300 m. +
globose +  and pyriform +
3 cm30 mm <br />0.03 m <br /> (?) +
lenticular +
0.4 cm4 mm <br />0.004 m <br /> (?) +  and 0.5 cm5 mm <br />0.005 m <br /> (?) +
3 cm30 mm <br />0.03 m <br /> (?) +
Closed-cone pine forests. +
terminal +  and axillary +
bisexual +  and unisexual +
1.5 cm15 mm <br />0.015 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
connate +
scale-like +
pinnate +  and entire +
articulated +
asymmetric +  and symmetric +
yellowish green +
connate +  and distinct +
deltate +  and triangular +
Flowering Aug–Sep +  and fruiting Sep–Oct. +
2[-3]-carpellate +
Wiens & Nickrent) Nickrent, Phytoneuron +
mucilaginous +
0.33 cm3.3 mm <br />0.0033 m <br /> (?) +  and 0.55 cm5.5 mm <br />0.0055 m <br /> (?) +
pyriform +  and ellipsoid +
0.23 cm2.3 mm <br />0.0023 m <br /> (?) +  and 0.4 cm4 mm <br />0.004 m <br /> (?) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
3 +  and 4 +
12 cm120 mm <br />0.12 m <br /> (20 cm200 mm <br />0.2 m <br />) +
brown;olive green;brown;olive green +
pendulous +  and erect +
fanlike +
8 cm80 mm <br />0.08 m <br /> (12 cm120 mm <br />0.12 m <br />) +
undifferentiated +
Razoumofskya campylopoda +
Arceuthobium campylopodum subsp. littorum +
Arceuthobium campylopodum +
subspecies +
spikelike +
mucilaginous +
evergreen +  and perennial +