Dudleya virens subsp. insularis

(Rose) Moran

Haseltonia 3: 2. 1995 ,.

Common names: Island green dudleya
Basionym: Stylophyllum insulare Rose in N. L. Britton and J. N. Rose, New N. Amer. Crassul., 34. 1903
Synonyms: Dudleya insularis (Rose) P. H. Thomson
Treatment appears in FNA Volume 8. Treatment on page 175. Mentioned on page 172, 174.

Caudices to 10 dm × 2–6 (–8) cm. Rosette leaf-blades whitish or sometimes green, triangular-lanceolate, 6–25 × 1–3 cm, surfaces usually farinose. Inflorescences: floral shoots 2–7 dm × 5–15 mm; cyme often ± cylindric; branches 1–3 times bifurcate; cincinni mostly 3–8-flowered, mostly 1–5 cm. Corollas 14–23 mm diam. 2n = 34.


Phenology: Flowering spring.
Habitat: Cliffs and rocky slopes near sea
Elevation: 0-300 m

Discussion

Of conservation concern.

Subspecies insularis grows only on Santa Catalina and San Nicolas islands and on the mainland on sea bluffs at the south base of San Pedro Hill—a former island now connected by the alluvial Los Angeles Plain but related to Santa Catalina and San Clemente islands directly to the south (W. S. T. Smith 1900).

Selected References

None.

Lower Taxa

None.

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

perigynous +  and hypogynous +
Reid V. Moran +
(Rose) Moran +
8mm +  and 40mm +
Stylophyllum insulare +
light green +  and whitish +
lobed +  and toothed +
semiterete +, linear +  and triangular-lanceolate +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
2-5 times wider than thick +
1-3 times bifurcate +  and simple +
1-3 times bifurcate +
6 cm60 mm <br />0.06 m <br /> (8 cm80 mm <br />0.08 m <br />) +
elongate +
whorled +, opposite +  and alternate +
1 cm10 mm <br />0.01 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Island green dudleya +
1.4 cm14 mm <br />0.014 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
15+-branched +  and 2-5-branched +
cylindric +
0-300 m +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
branched +  and simple +
ascending;spreading +
erect;spreading +
Cliffs and rocky slopes near sea +
axillary +  and terminal +
0.2 cm2 mm <br />0.002 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
sessile +, petiolate +  and subclasping +
alternate +  and crowded +
persistent +
0 cm0 mm <br />0 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
wider than tall +
semi-inferior +  and superior +
tenuinucellate +, crassinucellate +  and bitegmic +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
perigynous +  and hypogynous +
rosy +  and white +
to middle +  and connate +
7mm;11mm +
reflexed +  and widespreading +
elliptic-oblong +  and triangular-ovate +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Flowering spring. +
(3-)4-5(-12)[-30+]-carpellate +
suberect +  and ascending +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
green +  and whitish +
6 cm60 mm <br />0.06 m <br /> (25 cm250 mm <br />0.25 m <br />) +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
cross-ribbed +  and ribbed +
1 +  and many +
Conservation concern +
adnate +  and free +
antipetalous +
2-branched +  and simple +
distinct +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
not oily +  and not viscid +
Dudleya insularis +
Dudleya virens subsp. insularis +
Dudleya virens +
subspecies +
cylindric +  and 5-gonal +
perennial +, biennial +  and annual +