Pseudoclappia

Rydberg

J. Wash. Acad. Sci. 13: 288. 1923.

Etymology: Greek pseudo, resembling but not equaling, and generic name Clappia
Treatment appears in FNA Volume 21. Treatment on page 252. Mentioned on page 251.
 TaxonIllustrator 
FNA21 P40 Clappia suaedifolia.jpegClappia suaedifolia
Pseudoclappia arenaria
Jaumea carnosa
Yevonn Wilson-Ramsey
Linda Ann Vorobik
Yevonn Wilson-Ramsey

Subshrubs or shrubs, 5–40+ cm (fleshy). Stems mostly erect, branched from bases. Leaves cauline, mostly alternate (proximal opposite); sessile; blades linear to filiform (terete), margins entire, faces glabrous. Heads radiate, borne singly. Involucres obconic, 4–6 mm diam. Phyllaries persistent, 12–16 in 2+ series (lanceolate to linear, subequal to unequal, succulent to membranous). Receptacles convex, usually epaleate, rarely with scattered, slender scales. Ray-florets 2–11, pistillate, fertile; corollas yellowish. Disc-florets 20–40+, bisexual, fertile; corollas yellowish, tubes shorter than or about equaling narrowly funnelform throats, lobes 5, deltate. Cypselae ± columnar (obscurely 10–12-ribbed, sparsely hairy on ribs); pappi ca. 50 fine to coarse, nearly smooth to barbellate, unequal bristles or setiform scales in 3–4 series (all ± connate at bases). x = 18.

Distribution

sw United States, n Mexico

Discussion

Species 2 (2 in the flora).

Selected References

None.

Key

1 Rays 2–4+, laminae 5–11 mm; cypselae ca. 3 mm; pappi 4–6 mm Pseudoclappia arenaria
1 Rays 6–11, laminae 10–13 mm; cypselae ca. 4 mm; pappi 8–10 mm Pseudoclappia watsonii
... more about "Pseudoclappia"
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 +
Rydberg +
decurrent +
compound +  and simple +
linear;filiform +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
fertile +  and bisexual +
fertile +  and bisexual +
sw United States +  and n Mexico +
Greek pseudo, resembling but not equaling, and generic name Clappia +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
deltate +
2-carpellate +
nearly smooth +  and barbellate +
persistent +
12 +  and 16 +
J. Wash. Acad. Sci. +
bearing subulate enations +, hairy +  and bristly +
12 +  and 25 +
setiform +
unequal +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Compositae +
Pseudoclappia +
Asteraceae (tribe Heliantheae) subtribe Clappiinae +
perennial +, biennial +  and annual +
shrub +  and subshrub +