Perityle staurophylla

(Barneby) Shinners

SouthW. Naturalist 4: 205. 1959.

Common names: New Mexico rock daisy
Endemic
Basionym: Laphamia staurophylla Barneby Leafl. W. Bot. 8: 168, fig. s.n. [p. 169]. 1957
Treatment appears in FNA Volume 21. Treatment on page 333. Mentioned on page 324, 325.

Perennials or subshrubs, 15–40 cm (often forming dense clumps, densely leafy); glabrous or puberulent. Leaves: petioles 10–25 (–40) mm; blades usually deeply divided, 5–30 × 7–25 mm, lobes 3, relatively broad to linear, usually secondarily lobed, cleft, or parted, often ± cruciform, sometimes almost entire. Heads usually in corymbiform arrays, sometimes borne singly, 6–7.5 × 4.5–6 mm. Peduncles 4–25 mm. Involucres campanulate. Phyllaries 13–16 (–22), sublanceolate, 3.4–4 × 0.7–1.1 (–1.8) mm. Ray-florets 0, or 4–8; corollas yellow, laminae oblong, 3.6–4.8 × 1.2–2.2 mm. Disc-florets 40–50; corollas yellow, tubes 1.5–1.6 mm, throats subtubular to narrowly funnelform, 1.5–2 mm, lobes 0.6–0.8 mm. Cypselae oblanceolate, 1.8–2.3 (–2.7) mm, margins thin-calloused, short-hairy; pappi of 2–3 (–6) bristles 1.8–2.5 mm (at least the longer), often plus minute, hyaline scales.

Discussion

Varieties 2 (2 in the flora).

Selected References

None.

Key

1 Leaves: lobes usually linear to filiform; ray florets 0 (n end of San Andres Mountains) Perityle staurophylla var. homoflora
1 Leaves: lobes relatively broad to filiform; ray florets 4–8 (not n end of San Andres Mountains) Perityle staurophylla var. staurophylla

"broad" is not a number.

... more about "Perityle staurophylla"
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 +
(Barneby) Shinners +
decurrent +
Laphamia staurophylla +
compound +  and simple +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
divided +
0.7 cm7 mm <br />0.007 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
subplumose +, barbellulate +  and smooth +
subequal +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
New Mexico rock daisy +
0.23 cm2.3 mm <br />0.0023 m <br /> (0.27 cm2.7 mm <br />0.0027 m <br />) +
oblanceolate +
fertile +  and bisexual +
fertile +  and bisexual +
hairy +  and glabrous +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
discoid +  and radiate +
indeterminate +
0.6 cm6 mm <br />0.006 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
homogamous +  and heterogamous +
0.45 cm4.5 mm <br />0.0045 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 />) +
3.6mm;4.8mm +
1.2mm;2.2mm +
sessile +  and petiolate +
alternate +  and opposite +
cruciform +, parted +, cleft +, lobed +  and linear +
dentate to pinnatifid or palmatifid +  and entire +
short-hairy +
thin-calloused +
2-carpellate +
persistent +
of 1-2(-6) equal or subequal , smooth , antrorsely barbellulate or subplumose , bristles +
0.4 cm4 mm <br />0.004 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
0.34 cm3.4 mm <br />0.0034 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
13 +  and 16 +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
SouthW. Naturalist +
bearing subulate enations +, hairy +  and bristly +
convex;flat +
exalbuminous +
erect +  and pendent +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Undefined (tribe Undefined) subtribe Amauriinae +
Perityle staurophylla +
Perityle sect. Laphamia +
species +
subtubular +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
lobed +, toothed +  and entire +
puberulent +  and glabrous +
15 cm150 mm <br />0.15 m <br /> (40 cm400 mm <br />0.4 m <br />) +
45 cm450 mm <br />0.45 m <br /> (75 cm750 mm <br />0.75 m <br />) +
puberulent +  and glabrous +