Arceuthobium campylopodum subsp. apachecum

(Hawksworth & Wiens) Nickrent

Phytoneuron 2012-51: 10. 2012

Common names: Apache dwarf mistletoe
Basionyms: Arceuthobium apachecum Hawksworth & Wiens Brittonia 22: 266. 1970
Treatment appears in FNA Volume 12. Treatment on page 431. Mentioned on page 429.

Plants forming witches' brooms. Stems yellow, green, or red, 3.5(–9) cm; third internode 5–7.2(–10) × 1–1.5(–2) mm, dominant shoot 1–2 mm diam. at base. Staminate flowers 2.7 mm diam.; petals 3–4(–5). Fruits 4 × 2.5 mm.


Phenology: Flowering Jul–Sep; fruiting Aug–Oct.
Habitat: Coniferous forests with southwestern white pine.
Elevation: 2000–3000 m.

Distribution

V12 295-distribution-map.jpg

Ariz., N.Mex., Mexico (Chihuahua).

Discussion

Meiosis occurs in July, with fruits maturing 13 months after pollination.

Subspecies apachecum is known only from a portion of the range of its only host tree, Pinus strobiformis. Subspecies blumeri also utilizes this host, but the two taxa are not sympatric.

Selected References

None.

Lower Taxa

None.

Daniel L. Nickrent +
(Hawksworth & Wiens) Nickrent +
Arceuthobium apachecum +
Apache dwarf mistletoe +
Ariz. +, N.Mex. +  and Mexico (Chihuahua). +
2000–3000 m. +
Coniferous forests with southwestern white pine. +
Flowering Jul–Sep +  and fruiting Aug–Oct. +
Phytoneuron +
Illustrated +
Razoumofskya campylopoda +
Arceuthobium campylopodum subsp. apachecum +
Arceuthobium campylopodum +
subspecies +