Perityle microglossa var. microglossa

Synonyms: Perityle microglossa var. effusa
Treatment appears in FNA Volume 21. Treatment on page 321. Mentioned on page 322.

Annuals, 20–60 cm (stems erect or decumbent); usually copiously glandular-pubescent, rarely puberulent with scattered glandular-hairs. Leaves: petioles 5–30 (–40) mm; blades often turning purplish (variable in size and shape), cordate, ovate, or broadly ovate-cordate to subreniform, or subdeltate, usually 20–60 × 20–50 mm, margins singly or double crenate, even or irregular to strongly 3-lobed or cleft, pedately divided to subhastate (faces puberulent, glandular-puberulent, or glabrous). Heads borne singly or in corymbiform arrays, 3.5–4.5 (–6) × 4–6.5 (–7) mm. Peduncles 6–70 mm. Involucres campanulate. Phyllaries 14–30, narrowly to broadly lanceolate, 2.5–3 × 0.6–1 mm. Ray-florets 5–13; corollas white, laminae oblong, 1.5–3.5 mm. Disc-florets 40–100; corollas yellow, tubes 0.5–0.7 mm, throats tubular-funnelform, 0.5–0.8 mm, lobes 0.1–0.2 mm. Cypselae usually linear-oblong to linear-elliptic, rarely narrowly obovate, 1.5–2 mm, margins usually prominently calloused, ciliate; pappi of 2 unequal, antrorsely barbellate bristles 0.5–1.2 mm plus crowns of hyaline, laciniate scales. 2n = 68, 102.


Phenology: Flowering year around.
Habitat: Disturbed sites
Elevation: 0–1000 m

Discussion

The only known occurrence of Perityle microglossa from Arizona is the type of P. microglossa var. effusa (Santa Catalina Mountains, Pima County, 1882). Variety microglossa occurs as an introduced weed in extreme southern Texas and northern Mexico. Its shorter ligules and more glandular nature distinguish it from var. saxosa, which occurs only in Mexico. Cypsela and pappus characters, and distribution, distinguish P. microglossa from P. emoryi.

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 +
Bentham +
decurrent +
compound +  and simple +
double +  and singly +
cleft pedately divided;subhastate +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
yellow +  and white +
obovate +, usually linear-oblong +  and linear-elliptic +
fertile +  and bisexual +
fertile +  and bisexual +
Ariz. +, Tex. +  and Mexico +
0–1000 m +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
Disturbed sites +
discoid +  and radiate +
in corymbiform arrays +  and singly +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
indeterminate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
homogamous +  and heterogamous +
0.4 cm4 mm <br />0.004 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
each +  and sessile +
0.3 cm3 mm <br />0.003 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
campanulate +
0.4 cm4 mm <br />0.004 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
sessile +  and petiolate +
alternate +  and opposite +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
20mm;60mm +
broadly ovate-cordate +  and subreniform or subdeltate +
20mm +  and 50mm +
2-carpellate +
persistent +
of 1-2(-3+) , unequal to subequal , more or less barbellate bristles +
0.6 cm6 mm <br />0.006 m <br /> (7 cm70 mm <br />0.07 m <br />) +
3 cm30 mm <br />0.03 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Flowering year around. +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
14 +  and 30 +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Bot. Voy. Sulphur, +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
laciniate +
exalbuminous +
erect +  and pendent +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Perityle microglossa var. effusa +
Perityle microglossa var. microglossa +
Perityle microglossa +
variety +
tubular-funnelform +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
lobed +, toothed +  and entire +
puberulent +  and glandular-pubescent +
20 cm200 mm <br />0.2 m <br /> (60 cm600 mm <br />0.6 m <br />) +