Argythamnia mercurialina var. pilosissima

(Bentham) Shinners

Field & Lab. 24: 38. 1956.

Endemic
Basionym: Serophyton pilosissimum Bentham Bot. Voy. Sulphur, 53. 1844
Synonyms: Aphora pilosissima (Bentham) Torrey Argythamnia pilosissima (Bentham) Müller Arg. Ditaxis pilosissima (Bentham) A. Heller
Treatment appears in FNA Volume 12. Treatment on page 178.

Nectary glands of staminate and pistillate flowers hairy.


Phenology: Flowering from Mar–Jul.
Habitat: Oak woodlands and forests, grasslands, sandy soils.
Elevation: 10–150 m.

Discussion

Variety pilosissima occurs from east-central to south Texas, whereas var. mercurialina is widely distributed. Both varieties appear to prefer sandy soils.

Selected References

None.

Lower Taxa

None.
Yocupitzia Ramírez-Amezcua +
(Bentham) Shinners +
Serophyton pilosissimum +
1.5 cm15 mm <br />0.015 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
ovate;obovate +
0.6 cm6 mm <br />0.006 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
ovate +  and lanceolate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
hispidulous +  and strigose +
0.6 cm6 mm <br />0.006 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
10–150 m. +
pistillate +  and staminate +
subtending +
Oak woodlands and forests, grasslands, sandy soils. +
malpighiaceous +
unisexual +  and bisexual +
0 cm0 mm <br />0 m <br /> (12 cm120 mm <br />0.12 m <br />) +
persistent +  and deciduous +
palmate +  and pinnate +
serrulate +  and entire +
crenate +, repand +  and subentire +
0.7 cm7 mm <br />0.007 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
linear +  and obovate +
1.5 cm15 mm <br />0.015 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
extrastaminal +
pale-purple +, pale yellow-green +  and white +
2mm;2.5mm +
rudimentary +
punctiform +, linear +, elliptic +  and spatulate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering from Mar–Jul. +
3(-4)-carpellate +
Field & Lab. +
smooth +  and slightly papillate +
globose +  and ovoid +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
distinct +
? (?) +  and ? (?) +
lanceolate +  and narrowly elliptic +
0.3 cm3 mm <br />0.003 m <br /> (3 cm30 mm <br />0.03 m <br />) +
flattened +
subulate +  and ovate +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
connate +  and distinct +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (?) +  and 0.15 cm1.5 mm <br />0.0015 m <br /> (?) +
Aphora pilosissima +, Argythamnia pilosissima +  and Ditaxis pilosissima +
Argythamnia mercurialina var. pilosissima +
Argythamnia mercurialina +
variety +
dioecious +  and monoecious +