Peritoma jonesii

(J. F. Macbride) H. H. Iltis

Novon 17: 449. 2007.

Common names: Jones bee-plant
Basionym: Cleome lutea var. jonesii J. F. Macbride Contr. Gray Herb. 65: 39. 1922
Synonyms: Cleome jonesii (J. F. Macbride) Tidestrom
Treatment appears in FNA Volume 7. Treatment on page 207. Mentioned on page 205.

Annuals, 50–100 (–200) cm. Stems sparsely branched distally; glabrous or glabrate. Leaves: petiole 1.5–4.5 cm; leaflets 5, (proximal ones sometimes early deciduous), blade linear to elliptic, 1.5–4 (–6) × 0.4–1.3 cm, margins serrate, apex long-acuminate, surfaces glabrous. Racemes 1–3 cm (6–40 cm in fruit); bracts unifoliate, obovate to spatulate, 2–15 mm. Pedicels 7–15 mm. Flowers: sepals persistent, connate ca. 1/2 of length, yellow, lanceolate, 1.6–2.6 × 0.8–1.2 mm, margins denticulate, glabrous; petals golden yellow, oblong to ovate, 10–13 × 2–4 mm; stamens yellow, 20–30mm; anthers 1.9–2.6 mm; gynophore 15–25 mm in fruit; ovary 3–6 mm; style 0.5–0.8 mm. Capsules not inflated, 40–60 × 2–5 mm, striate. Seeds 15–30, gray to black, triangular (sharply angled), 3–4 × 2.5–3 mm, rugose.


Phenology: Flowering summer.
Habitat: Dry sandy flats, desert scrub, roadsides
Elevation: 300-1200 m

Distribution

V7 276-distribution-map.gif

Ariz., Calif., Mexico (Baja California)

Discussion

Often treated as a variety of Peritoma lutea, P. jonesii grows at lower elevations, has a more southerly (though overlapping) range (T. H. Kearney and R. H. Peebles 1960), and differs in morphological features. Most notable are its larger, showier flowers and longer capsules.

Selected References

None.

Lower Taxa

None.
... more about "Peritoma jonesii"
0.19 cm1.9 mm <br />0.0019 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
long-acuminate +
Staria S. Vanderpool +  and Hugh H. Iltis +
(J. F. Macbride) H. H. Iltis +
Cleome lutea var. jonesii +
linear to elliptic +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
serrulate +, serrate +  and entire +
0.4 cm4 mm <br />0.004 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
obovate;spatulate +
0.2 cm2 mm <br />0.002 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
not inflated +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Jones bee-plant +
Ariz. +, Calif. +  and Mexico (Baja California) +
300-1200 m +
adnate +  and free +
rotate;crateriform campanulate or urceolate +
dehiscent +  and indehiscent +
elongate +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Dry sandy flats, desert scrub, roadsides +
sessile +  and stalked +
axillary +  and terminal +
arranged +  and alternate +
denticulate +
1-carpellate +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
golden yellow +
distinct +
10mm;13mm +
oblong +  and ovate +
unequal +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
Flowering summer. +
tricolporate +  and binucleate +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
not arillate +
gray +  and black +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
triangular +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
persistent +
lanceolate +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
glandular-pubescent +  and glabrous +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
spreading +  and erect +
glabrate +  and glabrous +
deciduous +  and caducous +
scale-like +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Cleome jonesii +
Peritoma jonesii +
Peritoma +
species +
100 cm1,000 mm <br />1 m <br /> (200 cm2,000 mm <br />2 m <br />) +
50 cm500 mm <br />0.5 m <br /> (100 cm1,000 mm <br />1 m <br />) +
perennial +  and annual +
shrub +  and herb +