Phoradendron villosum subsp. coryae

(Trelease) Wiens

Brittonia 16: 45. 1964.

Basionym: Phoradendron coryae Trelease Phoradendron, 43, plate 44. 1916
Synonyms: P. villosum var. coryae (Trelease) B. L. Turner
Treatment appears in FNA Volume 12. Treatment on page 438. Mentioned on page 439.

Hairs on young stems, leaf-blades, and inflorescences of two types, some in dense clusters, relatively longer, others uniformly distributed, relatively shorter. Staminate inflorescences: internodes each (14–) 25 (–44) -flowered. Pistillate inflorescences: internodes each (6–) 8 (–12) -flowered.


Phenology: Flowering Jul–Sep.
Habitat: Oak woodlands.
Elevation: 400–2400 m.

Distribution

V12 878-distribution-map.jpg

Ariz., N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Sonora)

Discussion

In the flora area, subsp. coryae is found in Arizona south of the Mogollon Rim, through central New Mexico to the Chisos and Davis mountains of western Texas. Its principal hosts are Quercus species.

The molecular study by V. E. T. M. Ashworth (2000b) showed that Phoradendron villosum is paraphyletic because P. scaberrimum Trelease forms a clade with subsp. coryae. All three of these taxa parasitize Quercus and a shared indel supported their phylogenetic relationship.

Selected References

None.

Lower Taxa

None.

"thin" is not a number."dm" is not declared as a valid unit of measurement for this property.

rounded +  and acute +
Daniel L. Nickrent +
(Trelease) Wiens +
subtruncate;acute +
Phoradendron coryae +
white +  and pink +
3 cm30 mm <br />0.03 m <br /> (?) +
oblong;globose +
3 cm30 mm <br />0.03 m <br /> (?) +
1.3 cm13 mm <br />0.013 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
obovate-elliptic +  and orbiculate +
spikelike +
Ariz. +, N.Mex. +, Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +  and Mexico (Sonora) +
400–2400 m. +
elliptical +, ovate +  and flattened +
pistillate +  and staminate +
asymmetric +  and symmetric +
1 +  and 4 +
Oak woodlands. +
hirtellous +  and glabrate +
pistillate +  and staminate +
terminal +  and axillary +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
(6-)8(-12)-flowered +  and (14-)25(-44)-flowered +
1.5mm;3.8mm +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
olive green;green +
stellate-hairy +  and grayish +
scale-like +
pinnate +  and entire +
articulated +
distributed +  and cluster +
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 0.4 cm4 mm <br />0.004 m <br /> (?) +
distinct +
triangular +
1 cm10 mm <br />0.01 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Flowering Jul–Sep. +
2[-3]-carpellate +
mucilaginous +
percurrent +  and branching +
olive green;green +
pendulous +  and erect +
hairy +  and grayish +
multiple +  and single +
undifferentiated +
2[-3]-lobed +
P. villosum var. coryae +
Phoradendron villosum subsp. coryae +
Phoradendron villosum +
subspecies +
spikelike +
mucilaginous +