Plateilema

(A. Gray) Cockerell

Bull. Torrey Bot. Club 31: 462. 1904.

Etymology: Greek platys, broad, and eilema, envelope, alluding to broad phyllaries
Basionym: Actinella sect. Plateilema A. Gray Proc. Amer. Acad. Arts 19: 31. 1883
Treatment appears in FNA Volume 21. Treatment on page 444. Mentioned on page 415, 416.
 TaxonIllustrator 
FNA21 P68 Plateilema palmeri.jpegPlateilema palmeri
Baileya multiradiata
Tetraneuris scaposa var. scaposa
Linda Ann Vorobik
Yevonn Wilson-Ramsey
Yevonn Wilson-Ramsey

Perennials, mostly 5–8+ cm. Stems erect, branched mostly from bases. Leaves mostly basal; alternate; obscurely petiolate; blades obovate to oblanceolate, pinnately toothed or lobed (lobes deltate to obovate), ultimate margins toothed or entire, faces sparsely hispid (hairs white, coarse) or glabrate, not glanddotted. Heads radiate, borne singly. Involucres broadly turbinate, mostly 7–9 mm diam. Phyllaries persistent, 8–12 in 2 series (spreading or erect in fruit, basally connate, gray-green, ± ovate, sparsely hispid). Receptacles convex, ± pitted, epaleate. Ray-florets 8–12, pistillate, fertile; corollas yellowish with 4–5+ purplish nerves (apices 3–4-lobed). Disc-florets 40–60+, bisexual, fertile; corollas yellowish to purplish, tubes much shorter than ampliate, cylindric throats, lobes 5, ± deltate (± equal, usually hispidulous and/or glandular-puberulent). Cypselae obpyramidal, ± 4–5-angled (lengths 1.5–3 times widths), ± hispid on angles; pappi persistent, of 4–5 brownish, moderately lacerate to erose or truncate scales.

Distribution

Tex., n Mexico

Discussion

Species 1.

Lower Taxa

... more about "Plateilema"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
(A. Gray) Cockerell +
decurrent +
Actinella sect. Plateilema +
compound +  and simple +
obovate;oblanceolate pinnately toothed or lobed +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
yellowish +  and purplish +
4-5-angled +  and obpyramidal +
fertile +  and bisexual +
fertile +  and bisexual +
Tex. +  and n Mexico +
Greek platys, broad, and eilema, envelope, alluding to broad phyllaries +
glabrate +  and hispid +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
discoid +  and radiate +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
deltate +
dentate to pinnatifid or palmatifid +  and entire +
connate +  and distinct +
ovate +, oblong +, oblanceolate +, linear +, lanceolate +  and elliptic +
unequal +  and subequal +
2-carpellate +
persistent +
lacerate +
8 +  and 12 +
Bull. Torrey Bot. Club +
bearing subulate enations +, hairy +  and bristly +
turner2000a +
truncate +  and erose +
of 35 +  and 150 bristles +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Compositae +
Plateilema +
Asteraceae (tribe Heliantheae) subtribe Gaillardiinae +
cylindric +
ampliate +
dilated +
entire +  and toothed +
5 cm50 mm <br />0.05 m <br /> (8 cm80 mm <br />0.08 m <br />) +
shrub +  and subshrub +