Ranunculus sect. Halodes

(A. Gray) L. D. Benson

Amer. J. Bot. 27: 805. 1940.

Basionym: Undefined sect. Ranunculus Halodes A. Gray Proc. Amer. Acad. Arts 21: 366. 1886
Treatment appears in FNA Volume 3.

Plants glabrous or sparsely hirsute. Stems dimorphic, with erect flowering-stems and prostrate stolons, not bulbous-based, without bulbils. Roots basal and nodal, never tuberous. Leaves basal and cauline; basal, proximal cauline, and stolon leaves similar, petiolate, base broadly rounded to truncate, margins crenate or crenate-serrate; distal cauline leaves much reduced, scalelike, simple and undivided. Inflorescences 1-5-flowered cymes. Flowers pedicellate; sepals deciduous soon after anthesis, 5; petals 5, yellow; nectary scale attached basally, forming flap over nectary, glabrous, free margin entire; style present. Fruits achenes, 1-locular; achene body discoid to flattened-lenticular, oblong to obovate in outline, 2-4 times as wide as thick, not prolonged beyond seed; achene wall papery, not loose, longitudinally ribbed, glabrous; margin prominent narrow ridge; beak much shorter than achene body.

Distribution

North America, Mexico, South America, Eurasia

Discussion

Species ca. 10 (1 in the flora).

Selected References

None.

... more about "Ranunculus sect. Halodes"
not prolonged +
discoid +  and flattened-lenticular oblong +
2-4 times as wide as thick +
Alan T. Whittemore +
(A. Gray) L. D. Benson +
broadly rounded +  and truncate +
Undefined sect. Ranunculus +
curved +  and straight +
0 cm0 mm <br />0 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
large +  and small +
globose;cylindric +
1-5-flowered +
0 cm0 mm <br />0 m <br /> (25 cm250 mm <br />0.25 m <br />) +
North America +, Mexico +, South America +  and Eurasia +
showy +  and inconspicuous +
sessile +  and aggregate +
cylindric;obovoid;cylindric;obovoid;globose;lenticular;discoid +
axillary +  and terminal +
reniform +  and linear +
petiolate +, compound +  and simple +
whorled +, opposite +  and alternate +
cauline +  and basal +
parted +  and lobed +
palmate +  and pinnate +
crenate-serrate;crenate +
distinct +
conspicuous +
linear +  and orbiculate +
reduced +
0.1 cm1 mm <br />0.001 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
4 +  and 250 +
Amer. J. Bot. +
nodal +  and basal +
not arillate +  and stalked +
white;yellow;white;yellow;purple;sometimes;green +
deciduous +
distinct +
oblong +  and elliptic ovate or lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
(5-)10-many +
not bulbous-based +
persistent +
Ranunculus sect. Halodes +
Ranunculus subg. Cyrtorhyncha +
section +
perennial +  and annual +
hirsute +  and glabrous +
herbaceous +  and woody +