Hexastylis contracta

H. L. Blomquist

Brittonia 8: 279. 1957.

Endemic
Synonyms: Asarum contractum (H. L. Blomquist) Barringer
Treatment appears in FNA Volume 3.

Rhizomes: internodes short, leaves crowded at rhizome apex. Leaf-blade rarely variegate, orbiculate-cordate; calyx-tube rhombic-ovoid, conspicuously tapered above middle, with prominent constrictions just above base and just below sinuses, 15-27 × 12-17 mm, inner surface with reticulations absent or poorly developed, ridges 0-1 mm high, lobes erect to spreading, 4-5 × 7-8 mm, adaxially puberulent; stamen connective extending beyond pollen-sacs; ovary ca. 1/3-inferior; ovules 6 per locule; styles 2-cleft halfway to stigma.


Phenology: Flowering spring (May–Jun).
Habitat: Acid soils in deciduous forests, with Kalmia and Rhododendron
Elevation: 300-1000 m

Discussion

The distribution of Hexastylis contracta is unique; it is disjunct between the Cumberland Plateau of central Tennessee and Kentucky and the southeastern Blue Ridge Province of western North Carolina.

Selected References

None.

Lower Taxa

None.

"broad" is not a number.

... more about "Hexastylis contracta"
Alan T. Whittemore +  and L.L. Gaddy +
H. L. Blomquist +
triangular +
1.5 cm15 mm <br />0.015 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
tapered;rhombic-ovoid +
1.2 cm12 mm <br />0.012 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
merous +  and petaloid +
tubular +
enlarged +
fan--shaped +
Ky. +, N.C. +  and Tenn. +
300-1000 m +
sessile +  and petiolate +
indehiscent +  and loculicidal +
Acid soils in deciduous forests, with Kalmia and Rhododendron +
axillary +  and terminal +
leathery;membranous +
petiolate +  and simple +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
erect +  and spreading +
puberulent +
7mm;8mm +
parietal +, axile +  and placentation +
inferior +  and superior +
Flowering spring (May–Jun). +
4-6-carpellate +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
weak;strong +
distinct +
Asarum contractum +
differentiated +
Hexastylis contracta +
Hexastylis +
species +
differentiated +
evergreen +  and perennial +