Perityle lindheimeri var. halimifolia

(A. Gray) A. M. Powell

Sida 3: 278. 1968.

Endemic
Basionym: Laphamia halimifolia A. Gray Smithsonian Contr. Knowl. 3(5): 100, plate 9, fig. B. 1852
Synonyms: Perityle halimifolia (A. Gray) Shinners
Treatment appears in FNA Volume 21. Treatment on page 332.

Pappi usually 0, sometimes of single bristles 0.5–1 (–1.5) mm, usually plus obscure, callous crowns. 2n = 34.


Phenology: Flowering Apr–Jun.
Habitat: Cretaceous limestone outcrops
Elevation: 300–800 m

Discussion

Variety halimifolia is known only from Cretaceous limestone exposures in Val Verde and Crockett counties on the western edge of the Edwards Plateau. The pappus generally lacks bristles and the plants usually are smaller and somewhat depauperate in habit when compared with var. lindheimeri.

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. Gray) A. M. Powell +
decurrent +
Laphamia halimifolia +
compound +  and simple +
1 cm10 mm <br />0.01 m <br /> (4 cm40 mm <br />0.04 m <br />) +
broadly ovate;ovatelanceolate +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
subplumose +, barbellulate +  and smooth +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
subequal +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
linear-oblong +  and narrowly oblanceolate +
fertile +  and bisexual +
fertile +  and bisexual +
300–800 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Cretaceous limestone outcrops +
discoid +  and radiate +
in corymbiform arrays +  and singly +
indeterminate +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
homogamous +  and heterogamous +
0.4 cm4 mm <br />0.004 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 />) +
2.5mm;3mm +
oblong +  and suborbiculate +
1.5mm;2mm +
sessile +  and petiolate +
alternate +  and opposite +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
serrate-lobed +  and entire +
thin-calloused +
2-carpellate +
persistent +
of 1-2(-6) equal or subequal , smooth , antrorsely barbellulate or subplumose , bristles +
0.3 cm3 mm <br />0.003 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Flowering Apr–Jun. +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
12 +  and 14 +
2 cm20 mm <br />0.02 m <br /> (?) +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
exalbuminous +
erect +  and pendent +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Perityle halimifolia +
Perityle lindheimeri var. halimifolia +
Perityle lindheimeri +
variety +
campanulate +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
lobed +, toothed +  and entire +
45 cm450 mm <br />0.45 m <br /> (60 cm600 mm <br />0.6 m <br />) +
hairy +  and glabrate +
18 cm180 mm <br />0.18 m <br /> (45 cm450 mm <br />0.45 m <br />) +
45 cm450 mm <br />0.45 m <br /> (60 cm600 mm <br />0.6 m <br />) +
hairy +  and glabrate +