Asteraceae (tribe Heliantheae) subtribe Peritylinae

Rydberg in N. L. Britton et al.

in N. L. Britton et al., N. Amer. Fl. 34: 11. 1914.

Synonyms: Undefined (tribe Undefined) subtribe Amauriinae Rydberg
Treatment appears in FNA Volume 21. Treatment on page 316. Mentioned on page 5, 317.

Annuals, perennials, subshrubs, or shrubs, 2–45 (–75) cm. Leaves cauline; opposite or alternate; petiolate or sessile; blades mostly deltate to ovate or lanceolate overall, sometimes cordate, linear, reniform, rhombic, orbiculate, or ovate, often 3-lobed to pinnatisect, ultimate margins subentire to doubly serrate, faces glabrous or hairy, usually glanddotted. Heads radiate or discoid, borne singly or in corymbiform arrays. Calyculi 0. Involucres cylindric to campanulate or hemispheric. Phyllaries persistent, 8–21 in 1 (–3) series (distinct or connate, ovate to obovate or linear, subequal, often conduplicate, herbaceous, margins scarious). Receptacles flat or convex, epaleate. Ray-florets 0 or 8–12 pistillate, fertile; corollas yellow or white. Disc-florets 5–100+, bisexual, fertile; corollas yellow or white, tubes shorter than or about equaling cylindric to funnelform or campanulate throats, lobes 4, deltate (equal); anther thecae pale; stigmatic papillae in 2 lines. Cypselae linear or cuneiform to oblong or oblanceolate, strongly flattened or weakly 3–4-angled (callous-margined, usually ciliate); pappi 0, or persistent or falling, vestigial, or of 8–12 linear to subulate, laciniate or fimbriate scales, sometimes 1–2 (–4) scales aristate, or of 1–2 (–6) or 8–35 bristles.

Distribution

sw United States, Mexico, South America (1 species)

Discussion

Genera 5, species 67 (2 genera, 36 species in the flora).

Peritylinae appears to be relatively isolated among epaleate Heliantheae (H. Robinson 1981). B. G. Baldwin et al. (2002) included Lycapsus Philippi in Peritylinae.

Selected References

None.

Lower Taxa

Key

1 Leaf blades usually lobed (mostly 5–30 mm); phyllaries 8–16 in 2–3 series, distinct Perityle
1 Leaf blades usually triangular-hastate to narrowly deltate, seldom notably lobed (30–120 mm); phyllaries 15–21 in 1(–2) series, wholly or partially connate Pericome
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
indeterminate +  and determinate +
Theodore M. Barkley† +, Luc Brouillet +  and John L. Strother +
Rydberg in N. L. Britton et al. +
decurrent +
compound +  and simple +
3-lobed;pinnatisect +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
white +  and yellow +
cuneiform +  and oblong or oblanceolate strongly flattened or weakly 3-4-angled +
fertile +  and bisexual +
fertile +  and bisexual +
sw United States +, Mexico +  and South America (1 species) +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
discoid +  and radiate +
in corymbiform arrays +  and singly +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
cylindric;campanulate or hemispheric +
sessile +  and petiolate +
alternate +  and opposite +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
2-carpellate +
persistent +
8 +  and 21 +
in N. L. Britton et al., N. Amer. Fl. +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
exalbuminous +
prostrate +  and ascending +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Amauriinae +
Asteraceae (tribe Heliantheae) subtribe Peritylinae +
Asteraceae tribe Heliantheae +
subtribe +
cylindric +
subentire +  and doubly serrate +
perennial +  and annual +
shrub +  and subshrub +