Perityle megalocephala var. oligophylla

A. M. Powell

Sida 5: 91, fig. 6. 1973.

Common names: Small-leaved rock daisy
Endemic
Treatment appears in FNA Volume 21. Treatment on page 327. Mentioned on page 325.

Plants 15–35 cm. Leaves: petioles 0–4 mm; blades linear to lanceolate, 4–10 (–15) × 1–4 (–6) mm. Pappi 0, or of single bristles (sometimes plus callous crowns or vestigial, hyaline scales). 2n = 68.


Phenology: Flowering spring–fall (depending on rains).
Habitat: Rocky slopes
Elevation: 1300–2500 m

Discussion

Variety oligophylla is ephemeral in northern exposures or protected areas in mountains in the Death Valley region. At least some leaves are linear and the heads and habit are generally smaller than in var. megalocephala.

Selected References

None.

Lower Taxa

None.
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Sharon C. Yarborough +  and A. Michael Powell +
A. M. Powell +
decurrent +
Laphamia megalocephala +
compound +  and simple +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
linear;lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
subplumose +, barbellulate +  and smooth +
subequal +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.46 cm4.6 mm <br />0.0046 m <br />) +
Small-leaved rock daisy +
narrowly oblanceolate +  and suboblanceolate +
fertile +  and bisexual +
fertile +  and bisexual +
1300–2500 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Rocky slopes +
discoid +  and radiate +
0.9 cm9 mm <br />0.009 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
indeterminate +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
homogamous +  and heterogamous +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
campanulate +
0.35 cm3.5 mm <br />0.0035 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
sessile +  and petiolate +
alternate +  and opposite +
deltate +
short-hairy +
serrate-lobed +  and serrate +
thin-calloused +
2-carpellate +
persistent +
of 1-2(-6) equal or subequal , smooth , antrorsely barbellulate or subplumose , bristles +
4.5 cm45 mm <br />0.045 m <br /> (8 cm80 mm <br />0.08 m <br />) +
1 cm10 mm <br />0.01 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
0 cm0 mm <br />0 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Flowering spring–fall (depending on rains). +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
14 +  and 20 +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
exalbuminous +
erect +  and pendent +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Amauriinae +
Perityle megalocephala var. oligophylla +
Perityle megalocephala +
variety +
tubular +  and subfunnelform +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
lobed +, toothed +  and entire +
15 cm150 mm <br />0.15 m <br /> (55 cm550 mm <br />0.55 m <br />) +
45 cm450 mm <br />0.45 m <br /> (75 cm750 mm <br />0.75 m <br />) +