Castilleja dissitiflora

N. H. Holmgren

Mem. New York Bot. Gard. 21(4): 46, figs. 6–8. 1971.

Endemic
Treatment appears in FNA Volume 17. Treatment on page 603. Mentioned on page 573, 581.

Herbs, perennial, 1.8–4 (–5) dm; from a woody caudex; with a taproot. Stems several to many, erect to ascending, unbranched, sometimes branched, hairs spreading, long, soft, mixed with shorter stipitate-glandular ones. Leaves green, linear to narrowly or broadly lanceolate, (1–) 3–5 (–6) cm, not fleshy, margins wavy (obscure on many pressed specimens), involute, usually 0–3 (–5) -lobed, apex broadly acute to rounded; lobes widely spreading, linear to narrowly lanceolate, apex acute to acuminate. Inflorescences 2.5–10 × 2–5.5 cm; bracts proximally greenish, distally red to red-orange, narrowly lanceolate to broadly lanceolate, 3–5-lobed; lobes spreading, distal, if present, ascending, linear or narrowly oblanceolate to triangular, proximals long, arising below mid-blade, distals short, sometimes mere teeth, near apex of central lobe, sometimes wavy-margined, apex obtuse to rounded, sometimes acute. Calyces whitish with green veins or green, sometimes purple, distally same color as bracts, sometimes with yellowish band below colored apices, 20–26 (–29) mm; abaxial clefts (8–) 13–16 (–19) mm, adaxial 7–12 (–14) mm, clefts 35–50% of calyx length, deeper than laterals, lateral 2–6 (–8) mm, 10–30% of calyx length; lobes linear-lanceolate to lanceolate, apex obtuse to acute. Corollas straight to slightly curved, 24–38 mm; tube 14–21 mm; beak exserted from calyx, adaxially green, 11–16.5 (–18) mm; abaxial lip green, reduced, visible or not through deep front cleft in calyx, 2 mm, 13% as long as beak; teeth incurved, green, 1 mm. 2n = 48.


Phenology: Flowering Jun–Aug.
Habitat: Sagebrush slopes often rocky, montane to subalpine.
Elevation: 1900–3300 m.

Discussion

Castilleja dissitiflora is endemic to several mountain ranges in central and eastern Nevada, in the upper montane and lower subalpine zones. It has the deep abaxial calyx cleft of C. linariifolia and the stipitate-glandular, wavy-margined leaves of C. applegatei var. pinetorum. Based on morphological data, Holmgren suggested that it is an allopolyploid derived from hybridization of C. applegatei var. pinetorum and C. linariifolia. His proposal is plausible and should be further tested. Castilleja dissitiflora is a tetraploid, while both putative parental species have at least some diploid populations.

Selected References

None.

Lower Taxa

None.

... more about "Castilleja dissitiflora"
1.6 cm16 mm <br />0.016 m <br /> (1.9 cm19 mm <br />0.019 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
not through deep not through deep front +  and visible +
2 cm20 mm <br />0.02 m <br /> (?) +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
wavy-margined +
arising +  and ascending +
Obtuse (?) +  and Acute (?) +
J. Mark Egger +, Peter F. Zika +, Barbara L. Wilson +, Richard E. Brainerd +  and Nick Otting +
N. H. Holmgren +
1.65 cm16.5 mm <br />0.0165 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (1.65 cm16.5 mm <br />0.0165 m <br />) +
not +, leathery +  and fleshy +
green;green;distally red;red-orange +
3-5-lobed +, narrowly lanceolate +  and broadly lanceolate +
2.6 cm26 mm <br />0.026 m <br /> (2.9 cm29 mm <br />0.029 m <br />) +
2-lobed +, lobed +  and tubular +
2 cm20 mm <br />0.02 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
taprooted;fibrous-rooted or rhizomatous +
fleshy +  and woody +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
purple +, pink +, red +, orange +, yellow +, white +, green +  and pale greenish +
straight +  and slightly curved +
2.4 cm24 mm <br />0.024 m <br /> (3.8 cm38 mm <br />0.038 m <br />) +
wavy-margined +
arising +  and ascending +
obtuse;rounded +
1900–3300 m. +
spreading-hairy +  and glabrous +
2 +  and 1 +
indehiscent +, septicidal +, loculicidal +  and dehiscence +
Sagebrush slopes often rocky, montane to subalpine. +
much-branched +, unbranched +  and eglandular +
stipitate-glandular +
axillary +  and terminal +
spiral +, whorled +, alternate +  and opposite +
5 cm50 mm <br />0.05 m <br /> (6 cm60 mm <br />0.06 m <br />) +
deciduous +
basal +  and cauline +
linear;narrowly or broadly lanceolate +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
not fleshy +
3 +, 2 +  and 4 +
linear-lanceolate +  and lanceolate +
subequal +
0-3(-5)-lobed +  and wavy +
tenuinucellate +  and unitegmic +
campylotropous-like +
Flowering Jun–Aug. +
arising +  and ascending +
obtuse;rounded +
Mem. New York Bot. Gard. +
20 +  and 100 +
trapezoidal +, oblong-ovoid +, pyramidal +  and ovoid +
stipitate-glandular +
non-secund +  and secund +
elongate +
subequal +
branched +  and unbranched +
sprawling +  and prostrate +
aerial +  and subterranean +
erect +  and ascending +
several;many +
not fleshy +
2-lobed +  and entire +
Euchroma +  and Oncorhynchus +
Castilleja dissitiflora +
Castilleja +
species +
wavy-margined +
shallow;deep +
incurved +, arising +  and ascending +
obtuse;rounded +
reduced +
1 cm10 mm <br />0.01 m <br /> (?) +
1.4 cm14 mm <br />0.014 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +