Scopulophila rixfordii
Bull. Torrey Bot. Club 49: 351. 1923.
Common names: Rixford’s rockwort
IllustratedEndemic
Basionym: Achyronychia rixfordii Brandegee Zoë 1: 230. 1890
Treatment appears in FNA Volume 5. Treatment on page 48.
Stems 10–30 cm, glabrous except densely woolly at base. Leaves: stipules 0.8–3.5 mm; leaf pairs equal; blade 8–25 mm, fleshy. Inflorescences 2–4-flowered. Flowers: perianth 2.2–4.2 mm; hypanthium green, becoming brown and hard, terete to angular; sepals erect to spreading, central portion green, linear to oblong, concave, often unequal, fleshy, scarious portion becoming deciduous with age; staminodes slightly longer than sepals. Utricles ovoid. Seeds 0.9–1.1 mm.
Phenology: Flowering spring–early summer.
Habitat: Limestone and quartzite outcrops
Elevation: 1200-1600 m
Distribution
Ariz., Calif., Nev.
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Scopulophila rixfordii"
perigynous +
not hooded +
not awned +
rounded;acute;apiculate +
absent +
spongy +
distinct +
absent +
clawed +
reduced +
arising +
absent +
woolly +
1-veined +
fleshy +
foliaceous +
paired +
absent +
smaller +
scarious +
absent +
woody +
unequal +
fleshy +
Rixford’s rockwort +
absent +
woody +
thick +
dish--shaped +
central +
absent +
subtending +
distinct +
symmetric +
unisexual +
simple +
expanded +
hard +
Present +
2-4-flowered +
proliferating +
simple +
opposite +
connected +
equal +
white +
jagged to ciliate +
scarious +
absent +
minute +
swollen +
superior +
sterile +
campylotropous +
absent +
perigynous +
straight +
central +
surrounding +
annular +
fugacious +
absent +
absent +
deciduous +
scarious +
Bull. Torrey Bot. Club +
1923 +
thickened +
arising +
absent +
red spot;tan +
roughened +
green +
persistent +
distinct +
herbaceous +
erect;spreading +
linear-elliptic;orbiculate +
abortive +
absent +
sterile +
petaloid +
alternating +
slightly longer +
arising +
absent +
oblong +
branched +
herbaceous +
ascending;erect +
terete;angular +
subcapitate +
absent +
papillate +
white +
absent +
triangular +
scarious +
connate +
absent +
glabrous +
filiform +
1.5 cm15 mm <br />0.015 m <br /> (?) +
Scopulophila rixfordii +
Scopulophila +
species +
tuberous +
reddish +
divided +
indehiscent +
modified +
ovoid +
entire +
spreading +
toothlike +
minute +
perennial +
dioecious +
arising +
sessile +
transverse +
horizontal +
absent +