Styrax platanifolius subsp. stellatus

(Cory) P. W. Fritsch

Ann. Missouri Bot. Gard. 84: 743. 1998 ,.

Common names: Hairy sycamore-leaf snowbell
Basionym: Styrax platanifolius var. stellatus Cory Madroño 7: 111. 1943 (as stellata)
Treatment appears in FNA Volume 8. Treatment on page 344. Mentioned on page 343.

Young twigs with sparse, white, stellate hairs in addition to scattered, orangebrown or dark-brown, stalked, stellate hairs proximally. Leaf-blades: margins often irregularly undulate, usually weakly 3-lobed or coarsely toothed, sometimes entire, abaxial surface with scattered, white, stellate hairs in addition to scattered, orangebrown or dark-brown, stalked, stellate hairs on some leaves, surface visible through pubescence, adaxial surface with scattered, stellate-pubescence. Pedicels with white, stellate hairs of various lengths. Flowers: calyx with white, stellate hairs of various lengths, margins and teeth densely glandular, at least some teeth to 1 mm; style hairy from proximal end to 50–70% of total length.


Phenology: Flowering Apr–May; fruiting Jul–Sep.
Habitat: Dry, wooded bottomlands, rocky banks and ledges
Elevation: 500-700 m

Discussion

The range of subsp. stellatus is contiguous with the southern boundary of subsp. platanifolius at the southern edge of the Edwards Plateau. It is rare throughout most of its range.

Selected References

None.

Lower Taxa

None.

"lengthofcorolla" is not declared as a valid unit of measurement for this property."-2.3timesaslongascalyx" is not declared as a valid unit of measurement for this property.

nearly +  and distinct +
perigynous;epigynous +
Peter W. Fritsch +
(Cory) P. W. Fritsch +
Styrax platanifolius var. stellatus +
indistinct +
9 cm90 mm <br />0.09 m <br /> (12 cm120 mm <br />0.12 m <br />) +
9 cm90 mm <br />0.09 m <br /> (11.5 cm115 mm <br />0.115 m <br />) +
4.5 cm45 mm <br />0.045 m <br /> (9 cm90 mm <br />0.09 m <br />) +
ovate;depressed-orbiculate +
4.2 cm42 mm <br />0.042 m <br /> (9 cm90 mm <br />0.09 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.55 cm5.5 mm <br />0.0055 m <br />) +
grayish white +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
stellate-pubescent +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Hairy sycamore-leaf snowbell +
subinduplicate-valvate +  and imbricate +
1.2 cm12 mm <br />0.012 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
500-700 m +
curved +  and straight +
solitary +  and 2-7-flowered +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
not winged +, nutlike +, 3-valved +  and capsular +
loculicidal +
ellipsoid;globose +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Dry, wooded bottomlands, rocky banks and ledges +
in-addition +  and scattered +
white +, dark-brown +  and orangebrown +
conspicuous +
5 (?) +  and 6 (?) +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
toothed +, 3-lobed +  and undulate +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
perigynous;epigynous +
0.6 cm6 mm <br />0.006 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Flowering Apr–May +  and fruiting Jul–Sep. +
connate +, distinct +  and free +
Ann. Missouri Bot. Gard. +
ellipsoid;globose +
2(-4) times number of corolla lobes +
2-4[-5]-lobed +  and truncate +
in-addition +  and scattered +
dark-brown +, orangebrown +  and white +
Styrax platanifolius subsp. stellatus +
Styrax platanifolius +
subspecies +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
dark-brown +  and orangebrown +
shrub +  and not suckering +